MF-S350 is an axial leaded PTC resettable fuse designed for overcurrent protection in rechargeable battery pack applications. It features a hold current of 3.50 A and trip current of 6.30 A at 23 °C, with a maximum voltage rating of 30 V and maximum current rating of 100 A. The device has very low initial resistance ranging from 0.017 O to 0.031 O, with a post-trip resistance maximum of 0.040 O. Operating over a temperature range of -40 °C to +85 °C with a maximum device surface temperature of 125 °C in tripped state, this RoHS compliant fuse features weldable nickel terminals and carries cUS agency recognition.