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POWER WIREWOUND RESISTORS |
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Direct's new flat core winding technology allows for wirewound heatsinkable resistors affording a very low profile, and superior thermal transfer characteristics when compared to conventional aluminum housed type. Applications for electrical industry range from large capacity metal clad, nonflammable fixed wirewound, nonflammable wave shape ribbon, slide type wirewound, box type, wirewound starter, to nonflammable flat wirewound type. Direct extends a complete line for both military and commercial applications. |
| POWER WIREWOUND RESISTORS PDF - Download Entire Power Resistor Catalogue, PDF file (669KB). |
Fixed Wire Wound Power Resistors |
Type | Wattage |
Nonflammable Wave Shape Ribbon - DQ Series
DQ Series is a tubular ceramic with two terminals, and wound with a resistance element consisting of a wave-shaped alloy ribbon. |
Screw | 30~20000W |
Power Chamber - RNW Series
Power Resistor Chambers which can be used for anyresistor,chamber AC or DC power application. Units are most commonly used for motor acceleration and braking, load banks, harmonic filtering and neutral grounding applications. |
Chamber/Box/Case | Assembly Type |
Tubular Wirewound Resistors - DR Series
A Tubular Wirewound Ceramic Resistor has two terminals, and is wound with copper wire or chromium alloy wire to provide the resistance and then coated with a high temperature,non-flammable resin. |
Screw | 10~20000W |
Power High Current - DOE Series 
Power Oval Edge-wound High Current Resistors - DOE Series terminals are welded or silver brazed to the oval, spiral edge-wound resistance element. |
Screw | 550 ~ 3250W |
High Voltage Power Assembly - BOX Series
A High Voltage Power Assembly Resistor enclosure contains DR series of and/or DQ series. The box offers excellent protection and safety. |
Screw | 200~4800W |
Starter Type - DST Series
A Tubular Ceramic Starter Resistor has a fixed number of windings and is wound with alloy wire as a resistance element. |
Screw | 500~1000W |
Power Oval Flat-Wirewound Resistor - ZR Series
A Power Flat Tubular Wirewound Resistor has two terminals and is wound with either copper wire or chromium alloy wire as a resistance element. |
Screw | 40~450W |
Power Wirewound Aluminum Housed Resistor - AH Series
AH Wirewound Aluminum Housed Resistor is high power rating , small size and ultra precision. Standard winding & non-inductive winding types. High stability , strong construction. |
Screw | 5~250W |
Extended Lead Wire Power AH Resistor - AHL Series
Provides design engineers a flexible connection in distance between devices. Supporting a wide range of applications where heat dissipation, add high power are required, easy to utilize and install. |
Screw | 25~150W |
Aluminum Encased - AL Series
A Power Aluminum encased resistor consists of an alloy metal coil-type resistance element assembled into an aluminum enclosure. |
Screw | 60~1500W |
Adjustable Wire Wound Power Resistors |
Type | Wattage |
Power Variable Type - FVR Series
A C-Shaped Ceramic Variable Resistor is wound with copper or chromium-alloy wire as a resistance element. Except for the slide contact surface, the entire component is coated with a high-temperature, non-flammable resin. |
Screw | 25~100W |
Power Variable Adjustable Type - BSR,BSQ Series
A Tubular Ceramic Variable Adjustable Resistor form has copper-alloy or chromium-alloy windings as a resistance element, with the mount attachment method the same as the other described. |
Screw | 150~2000W |
Power Adjustable Round-Wire Resistor - DRS
These large, heavy-duty resistors are designed to withstand frequent start-stop cycles characteristic of motor starting, dynamic braking and other similar applications. |
Screw | 15~2000W |
Power Adjustable Ribbon-Wire Resistor - DQS
These power-rib wirewound resistors are equipped with an adjustable lug, making them ideal for adjusting circuits, obtaining odd resistance values and setting equipment to meet various line voltages. |
Screw | 75~2000W |
Correlation |
| Assembly Mounting Methods Assembly of Power Resistance Devices Mounting Methods |
- RESISTORS
- POWER TYPE - Chambers, Braking, Load Banks
- POWER TO-220 STYLE - Thin Film, High Precision
- PRECISION - Tighter Tolerance, Lower TCR
- SMD - Surface Mount Devices, Chip Type
- HIGH VOLTAGE - Extreme Energy Consumption
- MELF - Metal Electrode Leadless Face
- CURRENT SENSE - Low Resistance
- COMMERCIAL TYPE - Low Power Consumption
- PIEZOELECTRIC & MIRCOWAVE
- FILTERS - For Audio Visual, Communication Equipment
- RESONATORS - LC Oscillation, Electrical Resonance
- CRYSTAL RESONATORS - Ceramic Quartz Crystal
- DIELECTRIC - High Q Throughout Microwave Bands
- SAW - Low Profile, for CDMA800/1900/GPS System
- INDUCTORS & COILS
- RF INDUCTOR - SMD Type, Multilayer Beads, High SRF
- POWER INDUCTOR - SMT Low-Profile, High-Current
- FIXED INDUCTOR - Radial, Axial, Through Hole Type
- COILS - SMD Common Mode Choke
| Taiwan: | No. 137, Sec. 1, Chung Shin Rd., Wu Ku Hsiang, Taipei Hsien, Taiwan, R.O.C. TEL: +886-2-2981 0109; FAX: +886-2-2988 7487 |
| China: | 12F, Zhongxing Industry Bld., Chuangye Rd., Shenzhen, China. TEL: +86-755-2605 5363, 2605 5364; FAX: +286-755-2605 5365 |
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