Littelfuse extends resettable PPTC series

Littelfuse, Inc. has added a new SMD resettable polymeric positive temperature coefficient (PPTC) series of overcurrent circuit protection devices for high-voltage applications. The 3425L resettable PPTC Series targets a range of applications including computing, data center, telecom, industrial robotics and consumer electronics.

(Source: Littelfuse)

Resettable PPTC fuses are typically used in applications where frequent overcurrent conditions occur or constant uptime is required, said Littelfuse. The devices are used to limit unsafe currents and allow constant safe current levels, with the resistance resetting automatically when the fault is removed and temperature returns to a safe level. A key benefit of the resettable overcurrent protection is cost savings for warranty, service and repair.

The 3425L Series of SMD PPTCs extends Littelfuse’s PolySwitch family of resettable overcurrent protection devices, providing high-voltage protection in a surface-mount 3.4 × 2.5 mils package size. The 3425L devices provide operational voltages from 36 V to 60 V.

The SMD PPTCs are RoHS compliant and lead-free as well as halogen-free. The operating temperature range is -40°C to 85°C. Example protection applications include IEEE 1394 ports, powered Ethernet ports (IEEE 802.3 af), automotive electronic control modules, and low-voltage telecom equipment.

The 3425L Series is available in tape and reel in quantities of 500 (3425L260/60) and 1,000 (3425L200/60 and 3425L300/36). Sample requests can be made through Littelfuse’s authorized distributors. You can check stock or order samples here.