Anti-Surge Wirewound Resistor ( 2W 4.7ohm 5%)
SWA02J4R70TKZTB500
high power resistor, axial leaded resistor
Anti-Surge Wirewound Resistor 2W 4.7ohm 5% is designed by winding Nichrome wire around the superior ceramic rod, it can operates in high temperature with long term stability. Anti-Surge Wirewound Resistors are used in the electric instruments where amti-surge and power dissipation are required. Multi-national patents are approval.
| Size | Power Rating | Tolerance(%) | TCR(PPM) | Resistance(Ω) | Package |
|---|---|---|---|---|---|
| -- | 2W | 5% | -- | 4.7 | 500/Tape Box |
Features
- Flameproof multi-layer coating equivalent to UL 94 V-0
- Flameproof feature equivalent to overload test UL 1412
- Enhanced weld spot is reliable against surge
- Special tin-plated electrolytic copper lead wire
- Products meet RoHS requirements and do not contain substances of very high concern identified by European Chemicals Agency
- SWA series is applied in high surge applications such as high rush current protection for power capacitor, motor start-up protection, car & motorcycle engine ignition, etc. to absorb harmful surge, so to prevent hazard of circuit damage caused by surge
Application
- Lightning protection
- Power Supply
- Industrial Automation
- Measurement
- Testing Equipment
Single Surge Performance
Anti-Surge Wirewound Resistor - SWA series, is showing the surge performance from 10uS to 1S.
Surge Power Derating Curve
• SINGLE SURGE PERFORMANCE graph is good for NON REPETITIVE applications operating in an ambient temperature of 70°C or less. For temperatures above 70°C, the graph power must be derated further linearly down to zero at 150 °C.
• To determine applicable surge power in continuous-surge applications:
1. Identify allowable duration and peak power Psurge of single surge.
2. Determine ratio of surge duration/surge OFF time in application.
3. Calculate Papplicable backwardly according to Y-axis of SURGE POWER DERATING CURVE.
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Anti-Surge Wirewound Resistor
Anti-Surge Wirewound Resistor is operating in the high ambient temperature where amti-surge and power dissipation are required.
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