component

SZESD9902MLT1G

Public Made by Adom

by adom

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

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SZESD9902MLT1G

onsemi · ESD And Surge Protection (TVS/ESD) · SOT-23-3

SZESD9902MLT1G from onsemi, in a SOT-23-3. 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 CATHODE passive Cathode per Style 27 pin assignment; the datasheet does not state which pins are the I/O and GND pins (VRWM 25 V, I/O pin to GND).
2 CATHODE passive Cathode per Style 27 pin assignment; the datasheet does not state which pins are the I/O and GND pins (VRWM 25 V, I/O pin to GND).
3 CATHODE passive Cathode per Style 27 pin assignment; the datasheet does not state which pins are the I/O and GND pins (VRWM 25 V, I/O pin to GND).

Key specifications

Parameter Value
Manufacturer onsemi
Package SOT-23-3
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
Reverse Leakage Current IR 1 200 nA VRWM = 25 V 2
Reverse Working Voltage VRWM 25 V I/O Pin to GND 2
Reverse Holding Voltage VHOLD 25 V I/O Pin to GND 2
ESD Trigger Voltage Vtrigger 100 V 2
Reverse Peak Pulse Current IPP 2.2 A per IEC61000-4-5 (8x20 µs) 2
Channel Capacitance CJio-gnd 2.3 2.6 pF VR = 0 V, f = 1 MHz 2
Dynamic Resistance RDYN 0.4 Ω I/O to GND, GND to I/O 2
Operating Junction Temperature Range TJ -55 150 °C TJ = 25°C unless otherwise noted 1
Storage Temperature Range Tstg -55 150 °C 1
Lead Solder Temperature - Maximum TL 260 °C 10 Seconds 1
ESD (IEC 61000-4-2 Contact/Air, ISO 10605) ESD -30 30 kV minimum number of discharges > 1000 1
Maximum Peak Pulse Current Ipp 2.2 A 8/20 µs 1

CAD (KiCad official)

  • Symbol: SZESD9902MLT1G
  • Footprint: Package_TO_SOT_SMD:SOT-23-3
  • 3D model: SOT-23-3 (KiCad packages3D, STEP)
  • 3D model files: szesd9902mlt1g-etched.step / szesd9902mlt1g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); szesd9902mlt1g.step / szesd9902mlt1g.glb are the bare package body.

Provenance

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

  • Datasheet: onsemi datasheet (4 pp, sha256 9bb60381e12c123a, retrieved 2026-10-23, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text), consensus claude-sonnet-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