Pulse Protective Resistor (0.25W 4.7Mohm 5%)
PPR25J4M70TKZTB2K0
High pulse load, Anti-surge resistor
Pulse Protective Resistor (PPR) 0.25W 4.7Mohm 5% is designed with strong anti-surge capability against the other flat chip resistors and through hole resistors, this resistor has been widely used for anti-surge applications such as lighting surge protection, pre-charge circuit, ESD protection, fuel ignition system, power charging/discharging circuits, etc.
| Size | Power Rating | Tolerance(%) | TCR(PPM) | Resistance(Ω) | Package |
|---|---|---|---|---|---|
| -- | 0.25W | 5% | -- | 4.7M | 2K/Tape Box |
Features
- 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
Application
- Power Supply
- Telecomm
- Meter
- Medical
Single Surge Performance
Pulse Protective Resistor - PPR 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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Pulse Protective Resistor
Design with strong anti-suger capability against the other flat chip resistors and through hole resistors
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