突波防护插件电阻2W 390ohm 5%
PPR200J390RTKZTB500
电路保护电阻,高脉冲负载电阻
突波防護插件電阻2W 390ohm 5%比其他芯片電阻器和通孔電阻器有更強大的抗浪湧能力，該電阻器已廣泛用於抗浪湧的一些應用，例如浪湧保護，預充電電路，ESD保護，燃油點火系統，電源充電/放電電路等
| 尺寸 | 额定功率 | 精度(%) | 温度系数(PPM) | 阻值(Ω) | 包装方式 |
|---|---|---|---|---|---|
| -- | 2W | 5% | -- | 390 | 500/Tape Box |
产品特性
- Application: high-frequency, sharp-impulse circuits.
- To protect active components in missile detonators, triac switching circuits, etc.
- Offer every better aspect of performance than carbon composition resistor.
- No "sintering effect" caused by high surge that greatly decreases resistance value.
- Replaces carbon composition resistor.
- Conformal multi-layer non-flammable coating.
- Products meet RoHS requirements and do not contain substances of very high concern identified by European Chemicals Agency
产品应用
- 电源
- 通讯
- 测试/测量设备
- 医疗设备
单次浪涌性能
Pulse Protective Resistor - PPR series,is showing the surge performance from 10uS to 1S.
浪涌功率降额曲线
• 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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