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ESDA14V2SC5Y

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by Ray

STMicroelectronics ESD And Surge Protection (TVS/ESD), SOT-23-5. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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ESDA14V2SC5Y

STMicroelectronics · ESD And Surge Protection (TVS/ESD) · SOT-23-5

ESDA14V2SC5Y from STMicroelectronics, in a SOT-23-5. 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 IO1 passive Protected line 1. Connect in series/shunt on the signal line to protect. Clamps positive transients to about one diode drop above the VCC rail (pin 5) and negative transients to about one diode drop below GND (pin 4). Typical line capacitance 100 pF; VBR(min) 14.2 V; clamping voltage 35 V max at IPP = 14 A (8/20 µs).
2 IO2 passive Protected line 2. Identical unidirectional Transil channel as IO1, sharing the common VCC (pin 5) and GND (pin 4) rails. Typical line capacitance 100 pF; VBR(min) 14.2 V.
3 IO3 passive Protected line 3. Identical unidirectional Transil channel as IO1/IO2, sharing the common VCC (pin 5) and GND (pin 4) rails. Typical line capacitance 100 pF; VBR(min) 14.2 V.
4 GND passive Common ground / negative rail. Cathode reference for the low-side steering diodes on each protected line; negative transients on IO1..IO3 are clamped to about one VF (1.25 V max at 200 mA) below this pin.
5 VCC passive Common positive rail (logic supply). Anode reference for the high-side steering diodes on each protected line; positive transients on IO1..IO3 are clamped to about one VF above this pin (then to the Transil breakdown 14.2 V min / 15.8 V max above GND).

Key specifications

Parameter Value
Manufacturer STMicroelectronics
Package SOT-23-5
Category Circuit Protection
Pins 5

Ordering variants

Same part, different packaging or reel option.

  • ESDA14V2SC5Y
  • ESDA14V2SC6Y

CAD (KiCad official)

  • Symbol: ESDA14V2SC5Y
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: STMicroelectronics datasheet (None pp, sha256 676b300b76147436, retrieved 2026-08-17, tier: lcsc)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF