component

SZESD9B3.3ST5G

Public Made by Adom

by adom

onsemi ESD Protection Devices, SOD-923. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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SZESD9B3.3ST5G

onsemi · ESD Protection Devices · SOD-923

SZESD9B3.3ST5G from onsemi, in a SOD-923. 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 Cathode with polarity band in Style 1 of the SOD-923 outline, or a non-polarized terminal in Style 2 (no polarity).
2 2 passive Anode in Style 1 of the SOD-923 outline, or a non-polarized terminal in Style 2 (no polarity).

Key specifications

Parameter Value
Manufacturer onsemi
Package SOD-923
Category TVS/Fuse/Board Level Protection
Pins 2

Electrical characteristics

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

Parameter Symbol Min Typ Max Unit Conditions Page
Maximum Reverse Leakage Current IR 100 nA @ VRWM 2
Breakdown Voltage VBR 5 7 V @ IT = 1.0 mA (Note 2) 2
Clamping Voltage @ IPP = 1 A VC 10.5 V IPP = 1 A, Per 8 x 20 s (Note 4) 2
Clamping Voltage @ IPP = 2 A VC 11.5 V IPP = 2 A, Per 8 x 20 s (Note 4) 2
IEC 61000-4-2 (ESD) Contact -18 18 kV IEC 61000-4-2 Contact 1
IEC 61000-4-2 (ESD) Air -18 18 kV IEC 61000-4-2 Air 1
IEC 61000-4-4 (EFT) 40 A IEC 61000-4-4 (EFT) 1
Total Power Dissipation on FR-5 Board PD 300 mW Total Power Dissipation on FR-5 Board (Note 1) @ TA = 25°C 1
Junction and Storage Temperature Range TJ, Tstg -55 150 °C 1
Lead Solder Temperature - Maximum TL 260 °C 10 Second Duration 1
Thermal Resistance, Junction-to-Ambient RJA 400 °C/W 1
Capacitance C 15 pF @ VR = 0 V and f = 1.0 MHz 2
Working Peak Reverse Voltage VRWM 3.3 V 2

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part Material Colour / plating Datasheet says Page
contacts tin LEAD FINISH: 100% Matte Sn (Tin) MOUNTING POSITION: Any 1

CAD (KiCad official)

  • Symbol: SZESD9B3.3ST5G
  • Footprint: Diode_SMD:D_SOD-923
  • 3D model: SOD-923 (KiCad packages3D, STEP)
  • 3D model files: szesd9b3-3st5g-etched.step / szesd9b3-3st5g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); szesd9b3-3st5g.step / szesd9b3-3st5g.glb are the bare package body.

Provenance

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

  • Datasheet: onsemi datasheet (5 pp, sha256 c9aa0bfd713ad1d6, retrieved 2026-10-28, tier: manufacturer)
  • 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