突波防護插件電阻 0.25W 47ohm 5%
PPR25J47R0TKZTB2K0
電路保護電阻,高脈衝負載電阻
突波防護插件電阻0.25W 47ohm 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 | 額定功率 | 精度(%) | 溫度係數(PPM) | 阻值(Ω) | 包裝方式 |
|---|---|---|---|---|---|
| -- | 0.25W | 5% | -- | 47 | 2K/Tape Box |
產品特性
- 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
產品應用
- 電源
- 通訊
- 測試/測量設備
- 醫療設備
單次浪湧性能
Pulse Protective Resistor - PPR series,is showing the surge performance from 10uS to 1S.
浪湧功率降額曲線
• 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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