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ESDBL2105DX-AH

Public Made by Adom

by adom

ST Semtech ESD And Surge Protection (TVS/ESD), SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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ESDBL2105DX-AH

ST Semtech · ESD And Surge Protection (TVS/ESD) · SOT-23

ESDBL2105DX-AH from ST Semtech, in a SOT-23. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 1 passive Protected line 1 of the double bidirectional TVS (VRWM 24 V min, breakdown 26.2 to 32 V at 1 mA), shown at the bottom left of the SOT-23 symbol.
2 2 passive Protected line 2 of the double bidirectional TVS (VRWM 24 V min, breakdown 26.2 to 32 V at 1 mA), shown at the bottom right of the SOT-23 symbol.
3 3 passive Common pin at the top of the SOT-23 symbol, tied to the internal junction of both TVS diode paths; the datasheet gives no function name for it.

Key specifications

Parameter Value
Manufacturer ST Semtech
Package SOT-23
Category Circuit Protection
Pins 3

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
IEC61000-4-2 (ESD) Air Contact VESD -30 30 KV IEC61000-4-2 Air Contact 1
Peak Pulse Power Ppk 350 W tp = 8/20 µs 1
Peak Current, Pulsed IPP 8 A tp = 8/20 µs 1
Operating Junction Temperature Tj -40 125 °C 1
Storage Temperature Range Tstg -55 150 °C 1
Working Peak Reverse Voltage VRWM 24 V 1
Reverse Breakdown Voltage V(BR)R 26.2 32 V at IR = 1 mA 1
Reverse Current IR 100 nA at VRWM = 24 V 1
Clamping Voltage VC 40 V at IPP = 5 A, tP = 8/20 µs 1
Clamping Voltage VC 44 V at IPP = 8 A, tP = 8/20 µs 1
Junction Capacitance Cj 30 pF at VR = 0 V, f = 1 MHz 1

CAD (KiCad official)

  • Symbol: ESDBL2105DX-AH
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: esdbl2105dx-ah-etched.step / esdbl2105dx-ah-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); esdbl2105dx-ah.step / esdbl2105dx-ah.glb are the bare package body.

Provenance

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

  • Datasheet: ST Semtech datasheet (3 pp, sha256 5fe265c08bb27f34, retrieved 2026-10-18, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-opus-5-5 (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