Reliable electrostatic discharge (ESD) protection. Littelfuse offers a wide variety of circuit protection technologies that solve customers’ unique needs.

Littelfuse SM712 Series TVS Diode Array (SPA® Diodes) is designed to protect RS-485 applications with asymmetrical working voltages (-7V to 12V) from damage due to electrostatic discharge (ESD), electrical fast transients (EFT), and lightning-induced surges. It can absorb repetitive ESD strikes without performance degradation and safely dissipate up to 19A of 8/20μs surge current with very low clamping voltages

Robust surge and enhanced ESD protection Peak pulse power: 600W
Asymmetrical standoff voltage matches RS-485 transceiver profile
Low dynamic resistance (0.5Ω TYP) offers superb clamping performance
Minimal capacitive loading of 75pF (MAX)
Fieldbus
Modbus
Profibus
DMX512
Security Systems
Automated Teller Machines (ATMs)
Automation Equipment
Communication Equipment