SP4001-04UTG LITTELFUSE | Alldatasheet

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Technical content

©2009 Littelfuse, Inc 19 Application Guide SIM Socket Considerations:

  • The SIM (Subscriber Identification Module) card has 3 data lines that are low-speed and low-voltage → Given the low speed of the signals, the capacitance will not be a concern
  • The low-voltage signal lines are best protected by a device which has a low standoff voltage or VRWM → This allows the protection to turn on “earlier” in response to an over-voltage or ESD event
  • Protection of the 3 data lines is shown below (i.e. CLK, DATA, and RESET) Application Schematics: Recommended SPA Devices: Ordering Number ESD Level (Contact) Lightning (tP=8/20μs) I/O Capacitance # of Channels VRWM Packaging SP3002-04UTG ±12kV 4.5A 0.85pF 4 6V μDFN-6 (1.6x1.6mm) Signal GND SIM Controller SIM Socket VBUS DATA CLK RESET GND SP4001 Outside World Case GND IC Case GND *Package is shown as transparent NC NC NC