The ACM4B is designed to provide the thermal resistance range from 0.6°C/W to 0.35°C/W. Each module uses one(CFR4B) of OLC's world smallest series crossflow fan to achieve linear air velocity great than 800ft/min flow through all fins of heatsink. ACM4B series offers "true thermal resistance" to achieve the maximum efficiency of the forced air cooling at lowest profile 30mm.


E-mail us for your customized heat sinks.

E-mail us for OEM prices.


Thermal Resistance:

Service: Acc No. and Service: ex. "123456789 Overnight"