Power NTC Thermistor for Inrush Current Limiting Surge Suppression, Max. Current 5A, R25 3 Ohm, TDK Epcos ICL B57236S0309M000 Cross.

AMWEI Product Code: ICL11-3R5A

ICL Inrush Current Limit NTC Kinked Pin

Unit: mm

Inrush current limiting, e.g. in switch-mode power supplies, soft-start motors

Power NTC Thermistor Load Temperature Characteristics

Resin coated disk NTC thermistor with uninsulated lead-wires.
Suitable for both AC and DC circuits up to a voltage of 265 V(rms).
Excellent mechanical strength.
Suitable for PCB mounting.
Alternative to TDK Epcos NTC thermistors for inrush current limiting Series/Type: S236/**/M**, Ordering code: B57236S0309M000

Test Item	Standard	Test Conditions	Specifications
Lead wire tensile	IEC 60068-2-21	Test Ua: Force 20N, On 10 Seconds;	ΔR25/R25 <15%， No visible damage
Solderability	IEC 60068-2-20	245 ±3℃, 3 ± 0.3 sec	At least 95% of terminal electrode is covered by new solder
Resistance to Soldering Heat	IEC 60068-2-20	260 ± 3℃, 10 ± 1 sec	ΔR25/R25 <15%， No visible damage
Storage in dry heat	IEC 60068-2-2	Storage at upper category temperature Temperature 170C Time 1000h	ΔR25/R25 <20%， No visible damage
Storage in damp heat, steady state	IEC 60068-2-78	Temperature of air: 40C Relative humidity of air: 93% Duration: 21 days	ΔR25/R25 <20%， No visible damage
Rapid change of temperature	IEC 60068-2-14	Lower test temperature: -40C t: 30 min Upper test temperature: 170C t: 30 min Time to change from lower to upper temperature: < 30 s Number of cycles: 10	ΔR25/R25 <20%， No visible damage
Endurance with max. current	IEC 60539-1	Ambient temperature: 25 ±5C I=Imax t: 1000h	ΔR25/R25 <20%， No visible damage
Cyclic endurance	IEC 60539-1	I=Imax On-time=1 min Cooling time=6 min Number of cycles: 1000	ΔR25/R25 <20%， No visible damage

For inrush current limiting, the NTC thermistor must be connected in series with the load circuit. Several inrush current limiters can also be connected in series for higher damping.
Inrush current limiters must NOT be connected in parallel.
In general inrush current limiters require time to get back to cold state, in which they can provide adequate inrush current limiting due to their high resistance. The cooling down time depends on ambient conditions.
It should be considered that the surrounding area of NTC thermistor may become quite hot. Ensure the adjacent components are placed at sufficient distance from a thermistor to allow for proper cooling time of the thermistor.
Make sure that adjacent materials are designed for operation at temperatures comparable to the surface temperature of the thermistor. Make sure that surrounding parts and materials can withstand this temperature.
Make sure that thermistor are adequately ventilated to avoid overheating.
Avoid contamination of the thermistor surface.
Avoid contact of NTC thermistor with any liquids and solvents. Ensure that no water enters an NTC thermistor.