Ceramic Resistors
Todays deals on Ceramic Resistors?
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23,700+ KOA FIXED CERAMIC COMP POWER RESISTORS-3&4 WATT $2,650.00 |
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265,000/PCS SURFACE MOUNT RESISTORS/CERAMIC CAPACITORS $700.00 |
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20″ Giant Wire Wound Ceramic Resistor 1500 Ohm $115.00 |
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LOT/ 11 VINTAGE WIRE WOUND RESISTORS LARGE CERAMIC TUBE HIGH POWER 4 BRACKET $99.00 |
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Resistor ceramic 12.5 milli ohms, 10W, Fanuc part # A40L-0001-0323/R0125G $79.99 |
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New Lot 100 pcs SQP Ceramic Cement Sand 100 ohm Power Resistors 5w Watts $69.99 |
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20W 820 ohm 820R Ceramic Cement Resistor 20 W Watt(50) $44.99 |
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20W 22 ohm 22R Ceramic Cement Resistor 20 W Watt(50) $44.99 |
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20W 100k ohm 100k Ceramic Cement Resistor 20 W Watt(50) $44.99 |
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4 ohm 500 Watts Wirewound Ceramic Tube Resistor, 500W $60.00 |
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500 Watts 8 OHM High Power Ceramic Tube Resistor, Wirewound Coated. 500W $60.00 |
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500 Watts 4 OHM High Power Ceramic Tube Resistor, Wirewound Coated. 500W $60.00 |
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8 ohm 500 Watts Wirewound Ceramic Tube Resistor, 500W $60.00 |
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Anaren Ceramics Mini Flanged Resistor P/N: 250-200RM $40.00 |
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10W 22 ohm 22R Ceramic Cement Resistor 10 W Watt(50) $31.99 |
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10W 10 ohm 10R Ceramic Cement Resistor 10 W Watt(50) $31.99 |
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10W 1 ohm 1R Ceramic Cement Resistor 10 W Watt(50) $31.99 |
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10W 0.5 ohm 0R5 Ceramic Cement Resistor 10 W Watt(50) $31.99 |
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(75) Ceramic Wire Wound Power Resistors $39.95 |
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NOS NEW VINTAGE CLAROSTAT VK200W, 1 OHM RESISTOR CERAMIC 411-8704 ORIG BOX $45.00 |
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VINTAGE ELECTRONIC COMPONENTS CERAMIC CAPACITORS / RESISTORS 400 $39.99 |
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1060 Pieces 1.2 Ohm 1 Watt 5% Ceramic Resistors New $34.00 |
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50pcs Ceramic Cement Power Resistor 5W 390 ohm $31.99 |
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50pcs Ceramic Cement Power Resistor 5W 470 ohm $31.99 |
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Ceramic Tray Rotary Adjustable Resistor Rheostat 200 Ohm 150W $30.15 |
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150W Watt 5 Ohm Ceramic Disk Variable Resistor Rheostat $30.15 |
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Wirewound Variable Resistor 150 Ohm 150W Ceramic Disk Rheostat $30.15 |
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10 Ohm 150W High Power Ceramic Rheostat Variable Resistor $30.14 |
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20 Ohm 150W High Power Ceramic Rheostat Variable Resistor $30.12 |
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150W Watt 100 Ohm Ceramic Disk Adjustable Resistor Rheostat $30.11 |
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50 Ohm 150W High Power Ceramic Rheostat Variable Resistor $30.11 |
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150W Watt 100 Ohm Ceramic Disk Adjustable Resistor Rheostat $30.11 |
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150W Watt 300 Ohm Ceramic Disk Adjustable Resistor Rheostat $30.10 |
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1 ohm 300 Watts High Power Ceramic Tube Resistor, 300W $30.00 |
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2 ohm 300 Watts High Power Ceramic Tube Resistor, 300W $30.00 |
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4 ohm 300 Watts Wirewound Ceramic Tube Resistor, 300W $30.00 |
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OTIS KONE THYSSEN ELEVATOR (3)10 Ohm 225W Wirewound Power Resistor,Ceramic Case $20.00 |
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1 ohm 300 Watts Wirewound Ceramic Tube Resistor, 300W $30.00 |
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8 ohm 300 Watts Wirewound Ceramic Tube Resistor, 300W $30.00 |
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2 ohm 300 Watts Wirewound Ceramic Tube Resistor, 300W $30.00 |
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8 ohm 300 Watts High Power Ceramic Tube Resistor, 300W $30.00 |
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4 ohm 300 Watts High Power Ceramic Tube Resistor, 300W $30.00 |
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OHMITE WIRE RESISTOR # D50K50RE CHASIS MOUNT 50W-50 OHM 10%TUBULAR CERAMIC NEW $29.99 |
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30W 15 ohm 15R Ceramic Cement Resistor 30 W Watt(10) $19.99 |
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30W 3 ohm 3R Ceramic Cement Resistor 30 W Watt(10) $19.99 |
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30W 0.22 ohm 0R22 Ceramic Cement Resistor 30 W Watt(10) $19.99 |
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30W 47 ohm 47R Ceramic Cement Resistor 30 W Watt(10) $19.99 |
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Cesiwid Tubular Ceramic Resistor 888SP270K $29.95 |
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150 Ohm 150W Watt High Power Ceramic Rheostat Variable Resistor $28.92 |
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150W Watt 300 Ohm Ceramic Disk Adjustable Resistor Rheostat $27.91 |
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Ceramic Tube 30 Ohm 300W Fixed Wire Wound Resistor 30R $27.85 |
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Wirewound Variable Resistor 150 Ohm 150W Ceramic Disk Rheostat $27.36 |
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RFT 50ohm 50 ohm 50W Watt Ceramic Wire Wirewound Potentiometer Variable Resistor $20.00 |
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Ceramic Tray Rotary Adjustable Resistor Rheostat 150 Ohm 150W $27.01 |
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20 Ohm 150W High Power Ceramic Rheostat Variable Resistor $27.00 |
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Ceramic Tray Rotary Adjustable Resistor Rheostat 20 Ohm 150W $27.00 |
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150 Ohm 150W Watt High Power Ceramic Rheostat Variable Resistor $27.00 |
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150W Watt 100 Ohm Ceramic Disk Adjustable Resistor Rheostat $27.00 |
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Wirewound Variable Resistor 150 Ohm 150W Ceramic Disk Rheostat $27.00 |
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20 CERAMIC W.W. RESISTORS 5 WATT 9.5 X 23.6 MM 27 OHM $5.99 |
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20 CERAMIC W.W. RESISTORS 5 WATT 9.5 X 23.6 MM 1K5 $5.99 |
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20 CERAMIC W.W. RESISTORS 5 WATT 9.5 X 23.6 MM 1.8 OHM $5.99 |
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20 CERAMIC W.W. RESISTORS 5 WATT 9.5 X 23.6 MM 220 OHM $5.99 |
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20 CERAMIC W.W. RESISTORS 5 WATT 9.5 X 23.6 MM 560 OHM $5.99 |
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20 CERAMIC W.W. RESISTORS 5 WATT 9.5 X 23.6 MM 120 OHM $5.99 |
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20 CERAMIC W.W. RESISTORS 5 WATT 9.5 X 23.6 MM 680 OHM $5.99 |
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20 CERAMIC W.W. RESISTORS 5 WATT 6 X 24 MM 470 OHM $5.99 |
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20 CERAMIC W.W. RESISTORS 5 WATT 9.5 X 23.6 MM 3K3 $5.99 |
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20 CERAMIC W.W. RESISTORS 5 WATT 9.5 X 23.6 MM 1K2 $5.99 |
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20 CERAMIC W.W. RESISTORS 5 WATT 9.5 X 23.6 MM 12 OHM $5.99 |
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20 CERAMIC W.W. RESISTORS 5 WATT 9.5 X 23.6 MM 2K2 $5.99 |
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20 CERAMIC W.W. RESISTORS 5 WATT 9.5 X 23.6 MM 15 OHM $5.99 |
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20 CERAMIC W.W. RESISTORS 5 WATT 9.5 X 23.6 MM 82 OHM $5.99 |
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20 CERAMIC W.W. RESISTORS 5 WATT 9.5 X 23.6 MM 0.47 OHM $5.99 |
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20 CERAMIC W.W. RESISTORS 5 WATT 9.5 X 23.6 MM 0.22 OHM $5.99 |
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20 CERAMIC W.W. RESISTORS 5 WATT 9.5 X 23.6 MM 2.2 OHM $5.99 |
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20 CERAMIC W.W. RESISTORS 5 WATT 9.5 X 23.6 MM 68 OHM $5.99 |
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20 CERAMIC W.W. RESISTORS 5 WATT 9.5 X 23.6 MM 15K $5.99 |
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20 CERAMIC W.W. RESISTORS 5 WATT 9.5 X 23.6 MM 1.5 OHM $5.99 |
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20 CERAMIC W.W. RESISTORS 5 WATT 9.5 X 23.6 MM 820 OHM $5.99 |
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20 CERAMIC W.W. RESISTORS 5 WATT 9.5 X 23.6 MM 100 OHM $5.99 |
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20 CERAMIC W.W. RESISTORS 5 WATT 9.5 X 23.6 MM 8.2 OHM $5.99 |
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20 CERAMIC W.W. RESISTORS 5 WATT 9.5 X 23.6 MM 330 OHM $5.99 |
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20 CERAMIC W.W. RESISTORS 5 WATT 9.5 X 23.6 MM 18 OHM $5.99 |
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20 CERAMIC W.W. RESISTORS 5 WATT 9.5 X 23.6 MM 1 OHM $5.99 |
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20 CERAMIC W.W. RESISTORS 5 WATT 9.5 X 23.6 MM 150 OHM $5.99 |
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20 CERAMIC W.W. RESISTORS 5 WATT 9.5 X 23.6 MM 2.7 OHM $5.99 |
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20 CERAMIC W.W. RESISTORS 5 WATT 9.5 X 23.6 MM 1K8 $5.99 |
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20 CERAMIC W.W. RESISTORS 5 WATT 9.5 X 23.6 MM 0.82 OHM $5.99 |
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20 CERAMIC W.W. RESISTORS 5 WATT 9.5 X 23.6 MM 0.18 OHM $5.99 |
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20 CERAMIC W.W. RESISTORS 5 WATT 9.5 X 23.6 MM 0.56 OHM $5.99 |
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Ceramic Tray Rotary Adjustable Resistor Rheostat 150 Ohm 150W $26.99 |
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20 Ohm 150W High Power Ceramic Rheostat Variable Resistor $26.99 |
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Ceramic Tray Rotary Adjustable Resistor Rheostat 150 Ohm 150W $26.98 |
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Wirewound Variable Resistor 150 Ohm 150W Ceramic Disk Rheostat $26.98 |
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Wirewound Variable Resistor 20 Ohm 150W Ceramic Disk Rheostat $26.98 |
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100 Ohm 150W High Power Ceramic Rheostat Variable Resistor $26.97 |
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Wirewound Variable Resistor 150 Ohm 150W Ceramic Disk Rheostat $26.97 |
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20 Ohm 150W High Power Ceramic Rheostat Variable Resistor $26.97 |
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150W Watt 100 Ohm Ceramic Disk Adjustable Resistor Rheostat $26.97 |
Ceramic Resistors Questions
Simplified Passive Device Guide – Photoresistor
What is a Photoresistor?
A photoresistor is widely known as a light dependent resistor. Its evolution has come a long way since it was first introduced in 1873 by a scientist called Smith. Actually, its discovery happened when Smith was working hard to trace photo conductivity in various materials. Thus the researcher got the desired result while experimenting with selenium.
However, many scientists, since the photoresistor was brought first, have come up with their own improved versions with recommendable efficiency. Thus the making of photoresisrors is not confined to selenium only, but materials like germanium, cadmium sulphide, gallium arsenide and silicon have emerged as the leading production support for them.
The versatility in the use of materials for its production has led us to produce many low price photoresistors. Interestingly, their versatility and the way they are used as passive devices in various technological components gave them a series of alternative names. Presently, these photoresistors are also called as photocells, photoconductors, photoconductive cells, photo resistors etc.
How a Photoresistor is Made?
While making a photoresistor, a layer of an active semiconductor is spread on insulated substrates. As this resistor needs a better conductivity, the semiconductors used while its making are doped. A mild doping is enough to make a semiconductor with a better conductivity.
After then, some contacts are fixed on these substrates. To get the maximum of these photoresistors, the exposed area, between the contacts, on the substrates are never kept straight and even. Rather, the area is given some comparative complex patterns. It can be a zigzag looking interdigital pattern most of the time. Thus a complex pattern between the contacts increases the distance between them comprehensively.
Naturally, at maximum instances, any widely used semiconductor is used to make a photoresistor. Such phtoresistors turn out to be a bit costly. However, manufacturers, in order to make some cost-effective photoresitors, use polycrystalline semiconductor on ceramic substrates.
Some Basic Uses of Photoresistors :
The most famous uses of photoresistors are seen in various types of security devices such as burglar detectors, fire and smoke alarms etc. Basically, they are used in photographic light meters extensively. They are used in street lights and card readers too. Also, the photoresistors are used in many consumer appliances such as clocks, cameras, light meters etc. Further, they are used in some designs of dynamic compressors too.
About the Author
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