Acquired Electronics360

Aerospace

TVS Diode Arrays Protect Against Electrostatic Discharge

14 June 2016

The SP1026 Series 30 kV Bidirectional Discrete TVS Diode Array from Littelfuse, Inc. protects sensitive electronic equipment from damage due to electrostatic discharges (ESD). Zener diodes fabricated using a proprietary silicon avalanche technology protect each I/O pin to provide a high level of protection against ESD.

SP1026 Series 30 kV Bidirectional Discrete TVS Diode Array. Source: Littelfuse SP1026 Series 30 kV Bidirectional Discrete TVS Diode Array. Source: Littelfuse

The diodes can safely absorb repetitive ESD strikes at ±30 kV (contact discharge, IEC 61000-4-2) without performance degradation. Additionally, each diode can safely dissipate 5 A of 8/20 μs surge current (IEC61000-4-5) with very low clamping voltages.

Applications include protection of mobile phones, smart phones, smart watches, tablets, portable navigation devices and portable medical devices.

The array fits into a 0201-sized (0.60 mm x 0.3–05 mm) footprint to save PCB space and reduce costs. Low dynamic resistance (1.4 Ω) supports the low clamping voltages needed for protecting modern electronics filled with small-geometry ICs.

The diode array provides high ESD immunity and superior protection that meets IEC 61000-4-2, IEC 61000-4-4 and IEC 61000-4-5 regulations. This enables manufacturers to achieve ESD protection beyond the maximum level stated in the IEC standard and protect against other threats to ensure field product reliability.


The SP1026 Series is packaged in a μDFN-2 (0201) package, and is provided in tape and reel packaging in quantities of 15,000.



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