component

SZMMSZ5232BT1G

Public Made by Adom

by adom

onsemi Zener Diodes, SOD-123. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
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README.md Publish 0.1.0 · Ray 9d ago
szmmsz5232bt1g-etched.glb Publish 0.1.0 · Ray 9d ago
szmmsz5232bt1g-etched.step szmmsz5232bt1g: factory component page (tier=lcsc) · Ray 9d ago
szmmsz5232bt1g-hero.glb szmmsz5232bt1g: hero GLB from the etched model (keeps the MPN mark) · Ray 9d ago
szmmsz5232bt1g-hero.overlay.json Publish 0.1.0 · Ray 9d ago
szmmsz5232bt1g.glb Publish 0.1.0 · Ray 9d ago
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SZMMSZ5232BT1G

onsemi · Zener Diodes · SOD-123

SZMMSZ5232BT1G from onsemi, in a SOD-123. 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 of the Zener diode, marked by the polarity band on the package; the datasheet's SOD-123 pin assignment lists it as pin 1.
2 Anode passive Anode of the Zener diode; the datasheet's SOD-123 pin assignment lists it as pin 2.

Key specifications

Parameter Value
Manufacturer onsemi
Package SOD-123
Category Diodes
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
Reverse Zener Voltage @ IZT (nominal 5.6 V, 5% B-suffix) VZ 5.32 5.6 5.88 V @ IZT = 20 mA; TA = 25°C; junction in thermal equilibrium at TL = 30°C ±1°C (Note 4) 3
Zener voltage tolerance (B suffix, standard) VZ -5 5 % Standard tolerance on nominal Zener voltage, B-suffix type (Note 3) 3
Maximum Zener Impedance @ IZT ZZT 11 Ω @ IZT = 20 mA; IZ(AC) = 0.1 IZ(dc), f = 1 kHz (Note 5) 3
Maximum Zener Impedance @ IZK ZZK 1600 Ω @ IZK = 0.25 mA; IZ(AC) = 0.1 IZ(dc), f = 1 kHz (Note 5) 3
Reverse Leakage Current IR 5 µA @ VR = 3 V 3
Forward Voltage VF 0.9 V @ IF = 10 mA (5% table header; page 2 general header prints 0.95 V) 3
Total Power Dissipation on FR-5 Board PD 500 mW FR-5 board (3.5 x 1.5 in, minimum footprint), TL = 75°C (Note 1); derated 6.7 mW/°C above 75°C 1
Junction and Storage Temperature Range TJ, Tstg -55 150 °C 1
Thermal Resistance, Junction-to-Ambient RJA 340 °C/W Note 2 (infrared scan method) 1
Thermal Resistance, Junction-to-Lead RJL 150 °C/W Note 2 (infrared scan method) 1

CAD (KiCad official)

  • Symbol: SZMMSZ5232BT1G
  • Footprint: Diode_SMD:D_SOD-123F
  • 3D model: SOD-123 (KiCad packages3D, STEP)
  • 3D model files: szmmsz5232bt1g-etched.step / szmmsz5232bt1g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); szmmsz5232bt1g.step / szmmsz5232bt1g.glb are the bare package body.

Provenance

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

  • Datasheet: onsemi datasheet (7 pp, sha256 72c34c6ab3cd791c, retrieved 2026-10-18, 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