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Industrial Electronics

Protect Lower Voltage Power Buses with Bidirectional TVS Diode Arrays

14 August 2017

SP1103C Series TVS Diode Arrays. Source: Littlefuse, Inc.SP1103C Series TVS Diode Arrays. Source: Littlefuse, Inc.

Littelfuse, Inc. has expanded its portfolio of SP11xx Series TVS Diode Arrays (SPA® Diodes) with the addition of 80A discrete bidirectional TVS Diode Arrays. The SP1103C Series 80A Discrete Bidirectional TVS Diodes offer circuit designers lower standoff voltage options for protecting lower voltage power buses from electrostatic discharge (ESD) damage.

Constructed using TVS diodes fabricated in a proprietary silicon avalanche technology, these diodes protect each I/O pin to provide a high level of protection for electronic equipment sensitive to destructive ESDs. These robust diodes can safely absorb repetitive ESD strikes at ±30kV without performance degradation, and each can safely dissipate 80A of 8/20μs surge current with very low clamping voltages.

Applications include automotive electronics, industrial products, consumer electronics, switches/buttons, test equipment/instrumentation, point-of-sale terminals, medical equipment, notebooks/desktops/servers and computer peripherals. The SP1103C Series (surface mount 1610DFN package) is provided in tape and reel format in quantities of 3,000.

Key benefits offered by SP1103C Series TVS Diode Arrays:

• Extremely low (0.01 ohm) dynamic resistance ensures fast-acting ESD protection during an

overvoltage event.

• Discrete bidirectional design allows them to work whether they are inserted forward or backward.

• Low breakdown voltages (3.3 V) protect power rails up to 2.8 V.

• Industry-standard leadless 1610DFN package is suitable for use in industrial, automotive and

commercial environments.

To contact the author of this article, email sue.himmelstein@ieeeglobalspec.com


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