Features

• Designed to replace carbon or ceramic composition resistor, SSR series is applied in high-surge applications such as fuel ignition systems, power charging/discharging circuits, TV sets, etc, to absorb harmful surge energy, so to prevent hazard of fire and circuit damage caused by surge energy with a flame-proof coating.
• Products meet RoHS requirements and do not contain substances of very high concern identified by European Chemicals Agency

Application

• Industrial Automation
• Measurement/Testing Equipment
• Power Supply
• Medical equipment
• ECG Cable

Single Surge Performance

Surge Safety Resistor-SSR 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.

Related Products

Metal Oxide Film Fixed Resistor-MO

Metal Oxide Film Fixed Resistor (MO) features a power rating from 0.5W to 7W and a resistance range from 0.1 ohm to 220K ohm. The standard tolerance is set at ±5% only, with a TCR of ±300PPM/℃. When compared with a metal film resistor, MO can support higher power requirements and withstand large pulse loads in high ambient temperatures while maintaining long-term stability. It is flameproof with multi-layer coating equivalent to UL 94 V-0 and is solvent resistant.

Pulse Protective Resistor-PPR

The Pulse Protective Resistor(PPR series) features a power rating from 0.25W to 2W, with a resistance range from 2.2 ohm to 4.7M ohm. It does not experience "sintering effect" caused by a high surge that greatly decreases resistance value, and it has a conformal multi-layer non-flammable coating. This offers better performance in every aspect than a carbon composition resistor. Thus, it could be an alternative to carbon composition resistors such as KOA/HPC.

Anti-Surge Wire Wound Resistors-SWA

The Anti-Surge Wirewound Resistor (SWA series) offers a power rating from 1W to 6W, with a resistance range from 100m ohm to 1.2K ohm. The enhanced weld spot is not broken by surge impact, and the alloy wire can absorb harmful surge energy, making it suitable for high surge applications such as rush current protection of power capacitors, motor start-up protection, car & motorcycle engine ignition, thereby preventing the hazard of circuit damage caused by surge energy.

Surge Resistant MELF Resistor-SRM

The Surge Resistant MELF Resistor features a power rating from 0.25W to 3W, with a resistance range from 0.1Ω to 2.2MΩ. It has the advantages of tight tolerance compared to other branded wire wound resistors, with ±1%~±5% tolerances, and maximum permissible surge voltage up to 10KV. It is equipped with higher levels of performance regarding inrush current or surge damage from the environment. It is AEC-Q200 certified and anti-sulfur. It has an SMD structure and the sizes are the same as flat chip resistors. It has been tested and certified according to DIN EN IEC 62368-1 (VDE 0868-1):2021-05 Anhang/Annex G.10; EN IEC 62368-1:2020+A11:2020 Anhang/Annex G.10 (except SRM204 type) with VDE license number 40043961 and VDE license number 40054118.

Download

Surge Safety Resistor

Surge Safety Resistor is designed for any anti-surge applications, the performance is very similar to SRM series.

Download