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Contents

README

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SRV05-4HTG

Littelfuse · ESD And Surge Protection (TVS/ESD) · SOT-23-6

SRV05-4HTG from Littelfuse, in a SOT-23-6. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 I/O 1 bidirectional Signal protection pin rated for ±20kV ESD (contact per IEC61000-4-2), with 2pF typical capacitance, 0.5µA maximum leakage at 5V, and 8.8-10.0V clamp voltage at 1A peak current.
2 GND power_in Ground reference for device bias and signal return.
3 I/O 2 bidirectional Signal protection pin rated for ±20kV ESD (contact per IEC61000-4-2), with 2pF typical capacitance, 0.5µA maximum leakage at 5V, and 8.8-10.0V clamp voltage at 1A peak current.
4 I/O 3 bidirectional Signal protection pin rated for ±20kV ESD (contact per IEC61000-4-2), with 2pF typical capacitance, 0.5µA maximum leakage at 5V, and 8.8-10.0V clamp voltage at 1A peak current.
5 VCC power_in Positive supply voltage for zener reference diodes; reverse standoff voltage 6.0V.
6 I/O 4 bidirectional Signal protection pin rated for ±20kV ESD (contact per IEC61000-4-2), with 2pF typical capacitance, 0.5µA maximum leakage at 5V, and 8.8-10.0V clamp voltage at 1A peak current.

Key specifications

Parameter Value
Manufacturer Littelfuse
Package SOT-23-6
Category Circuit Protection
Pins 6

CAD (KiCad official)

  • Symbol: SRV05-4HTG
  • Footprint: Package_TO_SOT_SMD:SOT-23-6
  • 3D model: SOT-23-6 (KiCad packages3D, STEP)
  • 3D model files: srv05-4htg-etched.step / srv05-4htg-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); srv05-4htg.step / srv05-4htg.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Littelfuse datasheet (4 pp, sha256 8b4b5717625c05d4, retrieved 2026-09-23, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.2, primary claude-haiku-4-5-20251001 (text), consensus claude-sonnet-4-6 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF