The series incorporates foldback technology, which delivers up to 15% lower clamping voltage (VC)compared to traditional solutions, while maintaining Breakdown Voltage (VBR) above the Reverse Standoff Voltage (VR). This key differentiator ensures reliable protection for increasingly sensitive downstream components—especially next-generation DC/DC converters—without compromising system integrity.
“By achieving up to 15% lower clamping voltage for the same standoff voltage, our foldback technology enhances circuit protection performance in high-reliability applications like data centres and industrial systems,” says Littelfuse’s Jenny Chen.
Foldback technology for lower clamping voltage, improving protection against electrical fast transients (EFT), electrostatic discharge (ESD), and other overvoltage conditions.
Breakdown Voltage (VBR) is always greater than Reverse Standoff Voltage (VR) ideal for maintaining DC power line stability
5000 W peak pulse power rating enabling robust protection in harsh electrical environments.
Drop-in replacement< to legacy 5.0SMDJ Series with the same compact DO-214AB (SMC) footprint.
These devices protect DC power lines across a variety of demanding applications, including:
- Power over Ethernet (PoE) systems
- AI and data center servers
- ICT equipment power supplies
- Industrial DC power distribution
As system designs evolve to include higher-performance and more compact DC/DC converters, the risk of transient-induced failures increases. The 5.0SMDJ-FB Series gives design engineers a solution that combines compact footprint, ease of integration, and advanced protection performance to meet those demands.
The 5.0SMDJ-FB TVS Diodes are available in tape and reel format in quantities of 3,000. Sample requests are accepted through authorized Littelfuse distributors worldwide. For Littelfuse distributors see: Littelfuse.com.
More at: 5.0SMDJ-FB Series product page.
For technical questions: Ben Huang, Product Marketing Director, ESBU, Bhuang@littelfuse.com.