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Power Resistor
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1PCS 100 Ohm 100R 50W Power Metal Shell Case Wirewound Resistor |  |
0 Bid | US $4.99 | 4h 13m |
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5PCS 100 Ohm 100R 50W Power Metal Shell Case Wirewound Resistor | |
0 Bid | US $18.99 | 4h 13m |
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MELF Power Resistor 475 Ohm 1W 1% SMD 2508 x20 | |
0 Bid | US $.99 | 4h 25m |
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Power Resistors 0.47 Ohm 10W Metal Plate x2 | |
0 Bid | US $2.70 | 7h 20m |
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Power resistors 1.8 Ohm 2W Flameproof Metal Film x8 | |
0 Bid | US $2.40 | 7h 27m |
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3157 3057 4157 High Power Switchback LED Turn Signal Lights Bulbs + Resistors | |
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US $46.74 | 24d 4h 23m |
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SPR 100K Power Precision Resistor 5W 1% Low Noise Audio KOA USA x8 | |
0 Bid | US $4.90 | 10h |
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71.0 OHM TRU OHM POWER RESISTORS RW30 NOS Lot of 25 | |
0 Bid | US $6.99 | 10h 2m |
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Power Resistors 1.0 Ohm 10W Metal Plate x4 | |
0 Bid | US $4.80 | 11h 6m |
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SPEEDSTER Lateral Stepper Band Agility Power Resistor Sidestep ULTRA HEAVY Cord | |
0 Bid | US $28.95 | 11h 29m |
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10pcs High Power Super Bright Water Clear Blue 5mm LED 9V 12V W free resistors | |
4 Bids | US $1.50 | 13h 9m |
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10pcs High Power Super Bright Water Clear Blue 5mm LED 9V 12V W free resistors | |
1 Bid | US $.90 | 13h 26m |
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Power Resistor 1.1 Ohm 5W Wirewound Flameproof x8 | |
0 Bid | US $3.65 | 14h 19m |
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2x Amber 7440 7443 T20 992A 12-LED Turn Signal Lights Plus Load Resistors #A58C | |
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US $22.99 | 14h 37m |
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Power Resistors 0.47 Ohm 10W Metal Plate Low Induct. x4 | |
0 Bid | US $9.50 | 14h 37m |
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Power Resistor 56 Ohm 5W Wirewound Flameproof x5 | |
0 Bid | US $2.70 | 15h 31m |
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3000K Error Free 12-LED 7443 992A 7440 Turn Signal Lights + Load Resistors #A58C | |
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US $22.99 | 15h 33m |
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10pcs High Power Super Bright Water Clear Blue 5mm LED 9V 12V W free resistors | |
0 Bid | US $.90 | 19h 23m |
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LOT OF 140 OHM 25W POWER RESISTORS WITH MOUNTS -LOOK! | |
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US $5.99 | 19h 38m |
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Lot of 4, Bran New Never used, MRC ribwound 550w, 37.5 ohm, high power resistor | |
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US $29.00 | 23h 58m |
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LOT OF 18 OHM 10W POWER RESISTORS -LOOK! | |
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US $6.75 | 1d 5h 37m |
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LOT OF 220 OHM 1W POWER RESISTORS -LOOK! | |
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US $5.75 | 1d 5h 37m |
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0.71 OHM 38W POWER RESISTOR -LOOK! | |
0 Bid | US $1.99 | 1d 5h 37m |
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BIG LOT OF 2 OHM 5% POWER RESISTORS 5 WATTS-LOOK! | |
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US $5.99 | 1d 5h 38m |
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LOT OF 22 OHM 15W POWER RESISTORS -LOOK! | |
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US $5.55 | 1d 5h 38m |
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LOT OF 750 OHM VARI-TAP POWER RESISTORS -LOOK! | |
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US $5.75 | 1d 5h 38m |
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10pcs 5mm Red Flash Flashing Hi-Power Diffused LED with FREE Resistor 12v,RRF5 | |
1 Bid | US $.90 | 1d 8h 33m |
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10pcs High Power Super Bright Water Clear Blue 5mm LED 9V 12V W free resistors | |
0 Bid | US $.90 | 1d 11h 19m |
![50W cement power resistor 8 ohm Brand NEW [ER23]](http://thumbs.ebaystatic.com/pict/170848590305_0.jpg) |
50W cement power resistor 8 ohm Brand NEW [ER23] | |
0 Bid | US $.10 | 1d 11h 20m |
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MELF Power Resistor 475 Ohm 1W 1% SMD 2508 x100 | |
0 Bid | US $6.90 | 1d 11h 41m |
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10pcs 5mm Red Flash Flashing Hi-Power Diffused LED with FREE Resistor 12v,RRF5 | |
1 Bid | US $.90 | 1d 12h 46m |
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10pcs 5mm Red Flash Flashing Hi-Power Diffused LED with FREE Resistor 12v,RRF5 | |
1 Bid | US $.90 | 1d 13h 11m |
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10pcs High Power Super Bright Water Clear Blue 5mm LED 9V 12V W free resistors | |
0 Bid | US $.90 | 1d 13h 22m |
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Power Resistor 100 Ohm 5W Wirewound Flameproof x8 | |
0 Bid | US $3.65 | 1d 13h 23m |
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10pcs Ceramic Cement Power Resistor 10W 0.1 ohm | |
0 Bid | US $6.99 | 1d 13h 48m |
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10pcs Ceramic Cement Power Resistor 5W 390 ohm | |
0 Bid | US $4.99 | 1d 13h 48m |
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10pcs Ceramic Cement Power Resistor 5W 0.01 ohm | |
0 Bid | US $4.99 | 1d 13h 48m |
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1PCS 8 Ohm 8R 50W Power Metal Shell Case Wirewound Resistor | |
0 Bid | US $4.99 | 1d 13h 48m |
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1PCS 10 Ohm 10R 100W Power Metal Shell Case Wirewound Resistor | |
0 Bid | US $6.99 | 1d 13h 57m |
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1PCS 200 Ohm 200R 100W Power Metal Shell Case Wirewound Resistor | |
0 Bid | US $6.99 | 1d 13h 57m |
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1PCS 12 Ohm 12R 50W Power Metal Shell Case Wirewound Resistor | |
0 Bid | US $4.99 | 1d 13h 57m |
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5PCS 12 Ohm 12R 50W Power Metal Shell Case Wirewound Resistor | |
0 Bid | US $18.98 | 1d 13h 57m |
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10pcs High Power Super Bright Water Clear Blue 5mm LED 9V 12V W free resistors | |
0 Bid | US $.90 | 1d 15h 3m |
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10pcs High Power Super Bright Water Clear White 5mm LED 9V 12V W free resistors | |
1 Bid | US $.90 | 1d 17h 41m |
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10p High Power Super Bright Water Clear Blue 3mm LED 9V 12V W free resistors S | |
0 Bid | US $.90 | 1d 20h 45m |
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NGK Spark Plugs YR5 Stock # 7052 V Power Resistor Type American Cars | |
0 Bid | US $5.99 | 1d 21h 55m |
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10 OHM-10 WATT 5% POWER RESISTOR 20 PCS | |
1 Bid | US $2.50 | 2d |
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50 POWER WIREWOUND RESISTORS GREAT ASSORTMENT | |
0 Bid | US $3.88 | 2d 1h 12m |
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MEMCOR 63481-6 POWER RESISTOR D25WI 54641 | |
0 Bid | US $3.00 | 2d 2h 19m |
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CLAROSTAT POWER RESISTOR DECADE BOX | |
6 Bids | US $60.99 | 42m |
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Leviton 7899-W 20 Amp 125 Volt, SmartlockPro GFCI, with Indicator Light, Nylon Wallplate and Screws Included, White List Price: $25.18 Sale Price: $9.99  |
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Leviton 7899-W 20 Amp Ground Fault Circuit Interrupter, White Leviton is the leading manufacturer of Ground Fault Circuit Interrupters (GFCIs) in the electrical industry. Our renowned SmartlockPro brand offers a wide variety of Spec Grade and Hospital Grade GFCIs to protect people from electrical shock in homes, offices hospitals, schools and outdoors. Built with a patented reset lockout feature that blocks the Reset button if GFCI protection has been compromised, the GFCIs meet the latest NEC and UL requirements. You'll find smart choices for every need, including tamper-resistant, weather-resistant, hospital grade, GFCI/switch or GFCI/guide light and pilot light combinations, as well as easy-install slim versions and time-saving Lev-Lok and Cheetah GFCIs. SmartlockPro GFCI protection teams with an LED guide light for safety in the dark. This combination is ideal for installation in home and hotel bathrooms. A photo sensor turns the energy-efficient, long-life LED ON and OFF. Leviton 7899-W 20 Amp Ground Fault Circuit Interrupter, White Features: Non Tamper-Resistant Duplex Automatically test the GFCI every time the RESET button is pushed in SmartLockPRO reduces the possibility of end-users incorrectly assuming that a reset GFCI outlet is providing ground fault protection when it actually is not Line-load reversal prevents the GFCI from being reset and stops power from being fed to the GFCI receptacle face The trip latch mechanism in SmartLockPro GFCIs is a one piece "T" design for efficient operation Trip threshold meets or exceeds UL requirements for tripping time Improved immunity to high-frequency noise reduces nuisance tripping Advanced electronics design provides superior resistance to electrical surges and over-voltages Expanded wiring options with nine back-wire holes 20 Amp, 125 Volt Receptacle |
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Leviton 7599-W 15 Amp, 125 Volt Receptacle, 20 Amp Feed-Through, SmartlockPro GFCI, Wallplate and Screws Included, White List Price: $21.44 Sale Price: $4.98 |
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15 Amp, 125 Volt, NEMA 5-15R, 2P, 3W, Decora Plus Duplex Receptacle, Straight Blade, Commercial Grade, GFCI Ground Fault, SmartLockPRO, Buttons Match Face Color, Back & Side 20A Feed-Thru Wired, Steel Strap, - White , UPC: 07847730634 |
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Sunforce 60032 30 Amp Digital Charge Controller List Price: $129.99 Sale Price: $84.00 |
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Prevents overcharging of 12volt batteriesProtects battery from overcharge and dischargeFor use with 12 volt Solar Panels and batteries onlyHandles up to 30 Amps of Array currentHandles up to 500 Watts of solar powerMaintenance free protection of your solar panel and batteriesMaintains battery voltageMaintain 12 volt batteries in a fully charged state1 Year Warranty The Sunforce 60032 30 Amp Digital Charge Controller prevents overcharging of 12 volt batteries. It is intended for use with 12 volt solar panels, and can handle up to 30 amps of array current and up to 450 Watts of solar power. The controller will continuously display the charging current or battery voltage on the LCD digital meter, and also automatically indicates the charged condition of your battery on the LED bar graph. The 60032 is designed to work with a variety of 12 volt solar panels for indoor use. Key Component of a Solar System Over 15 Watts A charge controller is a very important feature of a solar system and must be used on all systems over 15 Watts. A charge controller protects your batteries from overcharge and discharge. Charge controllers are the maintenance free protection of your solar panel and batteries. A charge controller monitors the battery’s state-of-charge to insure that when the battery needs change-current, it gets it, and also insures the battery isn’t overcharged. Connecting a solar panel to a battery without a regulator seriously risks damaging the battery and potentially causing a safety concern. Charge controllers are rated based on the amount of amperage they can process from a solar array. |
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Bluecell 50 pcs RGB Full Multi color Flashing LED Electronics 5mm + Bluecell Cable Tie Sale Price: $6.99 |
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Package of 50 PCS 5mm Full color RGB flashing LEDs are made from ultra high quality chips and packaged in antistatic packaging with BOX. These LEDs are useful for a variety of DIY projects, custom lighting and commercial applications. |
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Bluecell 50 PCS Orange LED Electronics 5mm + Bluecell Cable Tie Sale Price: $6.29 |
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Package of 50 PCS 5mm orange LEDs are made from ultra high quality chips and packaged in antistatic packaging with BOX. These LEDs are useful for a variety of DIY projects, custom lighting and commercial applications. |
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Bluecell 50 PCS Purple LED Electronics 5mm + Bluecell Cable Tie Sale Price: $6.39 |
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Package of 50 PCS 5mm purple LEDs are made from ultra high quality chips and packaged in antistatic packaging with BOX. These LEDs are useful for a variety of DIY projects, custom lighting and commercial applications. |
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Elenco 365 Piece Resistor Kit List Price: $16.99 Sale Price: $12.49 |
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1/2w Resistor Kit containing 5 each of 73 standard 5% carbon film resistors in the series: 1.0, 1.2, 1.5, 1.8, 2.2, 2.7, 3.3, 3.9, 4.7, 5.6, 6.8, 8.2, 10, 12, 15, 18, 22, 27, 33, 39, 47, 56, 68, 82, 100, 120, 150, 180, 220, 270, 330, 390, 470, 560, 680, 820, 1K, 1.2K, 1.5K, 1.8K, 2.2K, 2.7K, 3.3K, 3.9K, 4.7K, 5.6K, 6.8K, 8.2K, 10K, 12K, 15K, 18K, 22K, 27K, 33K, 39K, 47K, 56K, 68K, 82K, 100K, 120K, 150K, 180K, 220K, 270K, 330K, 390K, 470K, 560K, 680K, 820K, 1M |
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Virtuabotix Bareduino Plus- Arduino Compatible Microcontroller with Power Regulator List Price: $14.95 Sale Price: $8.95 |
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Need lots of Arduino compatible controllers, but don't need the price tag that comes with a full development platform? This handy little kit is perfect for anyone who is experienced with the Arduino platform, and needs to include a lot more of them in his/her next project. Make a project on a breadboard, tie as many ATMEGA328's together as you need to. The sky is the limit, and you don't have to buy in bulk to get a great deal! The Bareduino328 Plus gives the added bonus of allowing you to power off an external rail without risk to your Bareduino and other 5 Volt devices. |
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Air Hogs RC Lipo Power Pack 7.4V 740 mAh Rechargeable Storm Launcher. # 47000-ENG-CS-R1 (2) Sale Price: $38.75 |
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Air Hogs RC Lipo Power Pack 7.4V 740 mAh Rechargeable Storm Launcher |
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XBOX 360 MOD Light Set - System and Controller Mods - CORE & PREMIUM |
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DIRECTIONS --- Full directions on how to install these will be shipped with your item. Soldering is required, but anyone can do it as long as they have some patience! Feel free to contact us with any questions you may have, we are always willing and able to assist you. Please choose between BLUE, RED, GREEN, ORANGE, WHITE, or AMBER. If you do not email a color to Louisb@xboxmodstore.com , you will receive the BLUE mod. |
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Fieldpiece SC53 Dual Display Mini Clamp Meter with Temperature List Price: $115.00 Sale Price: $91.90 |
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Read amps and volts at the same time with the Dual-Display Mini Clamp Meter with Temperature, model SC53. In addition to having a dedicated display for reading amps, you can measure any of the other ranges on the meter dial simultaneously. The SC53 is compact measuring only about 8-inches, easy to use and includes many of the ranges you use everyday during HVAC/R field service. Many instructors recommend the SC53 as a starter meter while seasoned veterans call it a little HVAC workhorse. Temperature and capacitance, built-in safety features like non-contact voltage and amp or dial hold, make this meter a solid choice for the work you do in the field. |
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Zalman Fan ZM-F3 FDB 120mm Silent Case Adjustable Speed Retail Lifespan 150,000 Hours List Price: $36.10 Sale Price: $28.69 |
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FDB (Fluid Dynamic Bearing) structure generates high pressure oil layer on micro channel's intersecting point, which prevents friction between the fan's shaft and bearing, thus resulting in maximum fan lifespan (150,000hrs) with minimum noise. |
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"F Type 75 Ohm Terminator, Pkg/10" List Price: $4.99 Sale Price: $0.01 |
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"Also known as Dummy Loads, terminators are an essential component in the proper termination of unused outputs of line splitters and amplifiers which utilize a Type F interface. Available in packages of 10 pieces. This is L-com part number BTF75M." |
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USB Data Cable + USB Car Charger + USB Home Charger + Black Rubber Silicone Skin Case + Elastic Armband + Clear Reusable LCD Screen Protector + White 3.5mm Stereo Headset for Apple Ipod Touch Itouch 8GB 16GB 32GB 2G 2nd Generation Sale Price: $13.49 |
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USB Data Cable + USB Car Charger + USB Home Charger + Black Rubber Silicone Skin Case + Elastic Armband + Clear Reusable LCD Screen ALl the accessories for iPod, Package includes: Protector + White 3.5mm Stereo Headset for Apple Ipod Touch Itouch 8GB 16GB 32GB 2G 2nd Generation |
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Resistor Sparkplug |
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NGK is the worlds largest supplier of OEM spark plugs. Tolerances are so close that the margin for error is near zero. |
Troubleshooting linear power supply was quite easy as compare to switch mode power supplies (SMPS). AC voltage enters to the primary side of linear transformer and then converted the AC into a lower or higher AC voltage depending on the secondary winding. The output AC voltage is then rectified and filtered by a diode and capacitors to produce a clean DC voltage. If there is a problem in the linear transformer circuit, I can say that it is very easy to locate the fault. This is somehow different in the case of a switch mode power supply. The designs were complicated and some technicians found it quite hard to fully understand how the switch mode power supplies work.
The working principle of switch mode power supply is different from the linear type. First the AC voltage will flow to a full wave rectifier (bridge rectifier) which produces an uneven DC output and then filtered by a large capacitor (usually 220 micro farad and up to 450 volts). The clean DC voltage will then flows to start up resistors and to the input of switch mode power transformer. Once the voltage passed through the high ohms resistor (start up resistors) the voltage would drop to a value where it then flows to the VCC supply pin of Pulse width modulation IC.
Once the PWM IC received the voltage it will output a signal to drive the transistor (or FET) and produces a changing in magnetic field in the transformer primary winding. The changing magnetic field induces voltage in the secondary windings. Each of these AC voltage produced by the secondary windings is then rectified, filtered, and regulated to produce a clean DC voltage. One of the main DC output voltage is the B+ that supply to flyback transformer (for TV and Monitor Circuit)
The output from the B+ voltage supply is then connected, through a “feedback” loop (which consist of optoisolator ic and an error amplifier TL431 IC), back to the PWM IC. When the voltage from the B+ supply rises or drop a bit, the PWM IC will act to correct the output.
If you still do not understand the above explanation, please do not be discourage because you can always buy technical books and schematic diagrams and read it till you get the whole idea of how a SMPS work. You can ask a repair friend or even surf the internet for a better and easy explanation.
Here I would like you to download a free SMPS article by Sencore and I found it to be a great help for you who are still struggle on how SMPS work and how to troubleshoot when it fails. You must ask your self what is the purpose and its function of the components in the SMPS circuit and how to check them if they fail. Find out on your own the function of these components in SMPS circuit:
Bridge rectifier,
Filter capacitor,
Start up resistors
Chopper/Power FET
Pulse Width Modulation (PWM IC)
Current sense resistor
Switch mode power transformer
Optoisolator/optocoupler
Error Amplifier IC (TL431)
Secondary diodes
Secondary filter capacitors
Push yourself further by searching the internet for the datasheet of a PWM IC part number. For example, UC3842 PWM IC is mostly used in SMPS. Do you know what the function of pin 5 of this IC is? Do you know which pin the VCC supply enters? Do you know what the actual voltage that flow to the IC is? Do you know which pin that drives the power FET? Can I get a replacement for this IC? And so on………
Let’s take a soldier as an example. Soldiers not only good in handling rifle but also knows all the details about it. They know how to dismantle and assemble back their rifle fast (imagine in the middle of war the rifle jammed-they can repair it fast). They know how much each bullet cost, how far the shooting distance, how big is the diameter of the bullet, how many cm the length of the bullet and so on. Hope you don’t get bored with the soldier’s story, did you get the ideas?
Any SMPS that comes across my repair bench, I would not immediately repair it, in fact I will take couples of minutes to analyze the circuit design and see it from all angles before I begin to repair. Troubleshooting SMPS is not limited to only one procedure in fact many electronic repairers have their own unique ways and methods to solve SMPS problems. Some prefer to use light bulb to isolate SMPS faults while others like to use resistors. Troubleshooting SMPS is fun and flexible but in some cases could make you get very frustrated too.
Remember, don’t limit yourself to only one or two sources to get you understand and be able to repair SMPS. If you have the budget, get the books that have related to SMPS repair-study and start doing practical about it. Share your problems with other fellow electronic repairers and the most important thing is don’t give up. There’s lot of mountain in the journey of our live and you yourself have to climb and conquer it. All the best!
Jestine Yong is a electronic repairer and a writer, for more electronic and power supply repair information, please visit his website at http://www.electronicrepairguide.com/power-supply.html
JVC VCR Problems In Model HR-J321EM-No Power
A customer sent me a JVC HR-J312EM model VCR for repair. The complaint was no power. I personally don’t repair VCR because I’m more on computer monitor repair. Because of he is a friend of mine; I told him that I’m willing to take the challenge to repair it. Repairing VCR at my era actually has begun to go obsolete because of the market filled with VCD players. VCD player is cheaper than VCR and compact in term of the size. Back then, many people sent their compact disc and laser disc players to electronic repair shop to convert the players into VCD player.
What the technicians do was to add in a mpeg or VCD card and tapped the EFM RF signal from the DSP ic. When you buy the VCD card, it came along with a list of the DSP ic part numbers and pin out and shown you at where you suppose to tap the signal. It was a 15- 20 minutes job and you could earn a lot from it. But now, everyone is using DVD player and VCD already obsolete.
Come back to the VCR player, after opened up the casing and placed my probe on the two pins of the main filter capacitor, I could see the capacitor still holding the charge. If the voltage present at the capacitor pins, this tells us that the main ac voltage is coming in, the fuse and the bridge rectifier is working. There must be a reason as to why the main filter capacitor still holding the charge. By following the positive marking pin of the main filter capacitor, I traced the line circuit and saw two high ohms resistors connected in series.
These two resistors are called start up resistors. The function of the start up resistors is to reduce the dc voltage to a lower value where it can then be supplied to the oscillator circuit and switch the power fet. If either one of the start up resistor developed an open circuit, there would be no supply voltage to the oscillator circuit and the power fet would not switch. Therefore no ac voltage produced at the secondary side of the power supply.
For the above VCR, I found a start up resistor (220 kilo ohms) open circuit and causing no power symptom. Other components such as the power fet, filter capacitor and diodes found to be in good condition. For your information, if either one of the start up resistor spoilt, you have to replace both otherwise the other one would become defective after in service for sometime. Replacements of the two resistors brought the VCR back to life again.
Conclusion, whether you are repairing the JVC HR-J312EM model VCR or any kind of electronic equipment, if you came across the main filter capacitor still holding the charge even with power off, suspect a defective start up resistors. However, certain electronic equipment power supply designed, the capacitor may still hold charge even the start up resistors seems to be working. In this case you have to use other troubleshooting techniques to solve it. Please refer back to my website for more electronic troubleshooting tips.
About the Author
Find out more at the links below. You will be very surprised to discover that LCD and Electronic Component Repairs can make thousands of dollars even for a novice. You can find out the repairing secrets.
Find out How to Repair Any LCD Monitor - It is a breeze!
Learn about Secrets of Electronic Repairs.
what name is used for a high-power variable resistor?
what name is used for a high-power variable resistor?
1. potentiometer
2. relay
3. carbon resistor
4. rheostat
4
2007 Chevrolet Aveo Cdn Suzuki Swift + (5) from North America - Comments
- Valve sealing problem at 48 000 (misfire code from cylinder 3, problems when about 15C, about 5 minutes after starting - rough while slowing to lights, about 60km/h roughness running, and slashing check engine light).
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