News

Littelfuse Dual Channel PPTC with 50 Smaller Footprint Protects Telecom Equipment from Overcurrents

October 14, 2019 by EE Power Editorial

This article highlights Littelfuse Incorporated TSM250-130 series of 250V Telecom PPTCs designed to help make telecom and network equipment more reliable.

 Littelfuse, Inc. a global manufacturer of leading technologies in circuit protection, power control, and sensing, today announced a new series of 250V Telecom PPTCs designed to help make telecom and network equipment more reliable. The TSM250-130 series protects against power cross and induced power surges as defined in ITU, Telcordia GR1089 and IEC 62368-1. Because it combines two resistance-matched PPTCs in a single surface-mount housing, it reduces the board space required by 50%, simplifies assembly, and offers Tip and Ring resistance balance.

 

Part of the Littelfuse PolySwitch® family of resettable overcurrent protection devices for telecommunications and networking equipment, the new series is ideal for:

  • Customer Premise Equipment (CPE)
  • Central Office (CO) equipment
  • Subscriber Line Interface Cards (SLIC)
  • VoIP port on set-top boxes

 

“Featuring two resistance-matched PPTCs in a single surface-mount housing, the TSM250-130 Series delivers Tip and Ring overcurrent protection while using 50% less PCB area,” said Stephen Li, Global Product Manager at Littelfuse. “With its high surge capability, it helps end-users comply with ITU-T K.20, K.21 and K.45 as well as Telcordia GR-1089 intra-building standards.”

 

The TSM250-130 Series PPTCs offer these key benefits:

  • Two 250V PPTCs in single housing reduces PCB area by 50%.
  • Resistance matched PPTCs offer Tip and Ring resistance balance.
  • Very high voltage surge capability aids compliance with industry certification.

 

Availability

The TSM250-130 Series PPTCs are available in tape and reel format in quantities of 3,000. Sample requests may be placed through authorized Littelfuse distributors worldwide. For a listing of Littelfuse distributors, please visit Littelfuse.com.

 

For More Information

Additional information is available on the TSM250-130 Series PPTC product page. For technical questions, please contact Stephen Li, Global Product Manager at Littelfuse, [email protected].

 

About Littelfuse

Littelfuse is a global manufacturer of leading technologies in circuit protection, power control, and sensing. Sold in over 150 countries, our products are found in automotive and commercial vehicles, industrial applications, data and telecommunications, medical devices, consumer electronics, and appliances. Our 12,000 worldwide associates partner with customers to design, manufacture and deliver innovative, high-quality solutions, for a safer, greener, and increasingly connected world – everywhere, every day. Learn more at Littelfuse.com.