Schaltkreisschutz von Tastaturlösungen

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Schaltkreisschutz von Tastaturlösungen



Design Notes:

Protection Application:
Keypads and various buttons can be an entry way for ESD into an application. These circuits are low-voltage DC switches, typically less than 5VDC, so capacitance is not a concern.
Solution Description:
The examples contain four lines for demonstration purposes. The actual number will vary by application. A single diode array cab be used to reduce part count. Discrete diodes can also be used to provide the greatest board layout flexibility.
Companion Solutions:
Other solutions within the LF portfolio exist in addition to these recommendations. For example, if discrete diodes with smaller footprint are desired, the SP1005-01WTG (0201) can be used.
Regulatory Issues:
The IEC 61000-4-2 will be the most appropriate standard that applies for these circuits. It supplies a test method for verifying that the end product is not susceptible to ESD events.
Unique Features:
Application Warnings:

Lösungen

Lösungen

  • SP1001

    8 pF, 15 kV, Unidirektionales TVS-Array für ESD-Schutz – Zugelassen nach AEC-Q101

  • SP1003

    30 pF, 30 kV, 0402 Unidirektionale TVS-Diode für den ESD-Schutz – Zugelassen nach AEC-Q101

  • SP0504BACT

    TSV-Avalanche-Diodenarrays in einpoliger CSP-Baugröße (Chip Scale Package)

  • SP0504BAHT

    Oberflächenmontierbare TSV-Avalanche-Diodenarrays

  • SP0504BAHTG

    30 pF, 30 kV – Unidirektionales TVS-Array für ESD-Schutz

  • SP0504BAJT

    Oberflächenmontierbare TSV-Avalanche-Diodenarrays

  • SP0504BAJTG

    30 pF, 30 kV – Unidirektionales TVS-Array für ESD-Schutz