Surge Resistant MELF Resistor (0.25W 140Kohm 1%)
SRM204F140KTKZTR3K0
High pluse load and anti-surge resistor, anti-sulfur
Surge Resistant MELF Resistor 0.25W 140Kohm 1%, is designed by thin film technology with surperior anti-surge capability, benefits from MELF packages it could be excellent in heat disspation, anti-sulfur. It's the best alternative to any other surge resistors.
| Size | Power Rating | Tolerance(%) | TCR(PPM) | Resistance(Ω) | Package |
|---|---|---|---|---|---|
| 0204 | 0.25W | 1% | -- | 140K | 3K/Tape Reel |
Features
- AEC-Q200 Compliant
- Anti-sulfuration test qualified
- Heat dissipation is much better than chip resistor
- Stronger mechanical structure to endure vibration and thermal shock
- MELF packaging yet capable of high power handling
- Special conductive film enhances anti-surge capability
- Absorbs harmful surge which damages precious devices or components
- SMD-enabled alternative to carbon composition resistors
- Approved to the safety requirement of EN IEC 62368-1:2018, Anhang/Annex G.10 (includes former requirement of EN IEC 60065(VDE 0860), 14.2a) except SRM204 type)
- Products meet RoHS requirements and do not contain substances of very high concern identified by European Chemicals Agency
Application
- Lightning protection
- Automotive
- Industrial Automation
- Measurement/Testing Equipment
- Power Supply
- Medical equipment
- Communication
- Smart home
Single Surge Performance
Pulse Protective Resistor - SRM 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.
Suggested Pad Layout
Suggested pad layout for Surge Resistant MELF Resistor, SRM series
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Surge Resistant MELF Resistor
Surge Resistant MELF Resistor is the best alternative to any other surge resistors such as CMA0204,CMB0207.
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