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Contents

README

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SZNUP2105LT3G

ONSEMI · Global Sourcing Parts · SOT-23

SZNUP2105LT3G from ONSEMI, 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 ANODE passive Datasheet package Style 28 lists pin 1 as ANODE of the bidirectional surge-protection Zener array; the 350 W per-line peak power and 24 V VRWM ratings apply to the line protection, not to this pin in isolation.
2 ANODE passive Datasheet package Style 28 lists pin 2 as ANODE of the bidirectional surge-protection Zener array; the datasheet gives no further pin-level limits.
3 ANODE passive Datasheet package Style 28 lists pin 3 as ANODE of the bidirectional surge-protection Zener array; the datasheet gives no further pin-level limits.

Key specifications

Parameter Value
Manufacturer ONSEMI
Package SOT-23
Category Global Sourcing Parts
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 Working Voltage VRWM 24 V (Note 2) 2
Breakdown Voltage VBR 26.2 32 V IT = 1 mA (Note 3) 2
Reverse Leakage Current IR 1.5 100 nA VRWM = 24 V 2
Clamping Voltage VC 40 V IPP = 5 A (8/20 s Waveform) (Note 4) 2
Clamping Voltage VC 44 V IPP = 8 A (8/20 s Waveform) (Note 4) 2
Maximum Peak Pulse Current IPP 8 A 8/20 s Waveform (Note 4) 2
Capacitance CJ 30 pF VR = 0 V, f = 1 MHz (Line to GND) 2
Peak Power Dissipation PPK 350 W 8/20 s Double Exponential Waveform (Note 1) 2
Operating Junction Temperature Range TJ -55 150 °C 2
Storage Temperature Range TJ -55 150 °C 2
Lead Solder Temperature TL 260 °C 10 s 2
ESD Human Body Model ESD 16 kV HBM 2
ESD Machine Model ESD 400 V MM 2
ESD IEC 61000-4-2 Specification ESD 30 kV Contact 2

CAD (KiCad official)

  • Symbol: SZNUP2105LT3G
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: sznup2105lt3g-etched.step / sznup2105lt3g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sznup2105lt3g.step / sznup2105lt3g.glb are the bare package body.

Provenance

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

  • Datasheet: ONSEMI datasheet (8 pp, sha256 b15c6c9d45444cf8, retrieved 2026-10-17, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-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