component

SZMMBZ27VALT1G

Public Made by Adom

by adom

onsemi Zener Diodes, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentdiodesszmmbz27valt1gfactory-2.0.0extractor-text
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szmmbz27valt1g-etched.glb szmmbz27valt1g: factory component page (tier=lcsc) · Ray 15d ago
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SZMMBZ27VALT1G

onsemi · Zener Diodes · SOT-23

SZMMBZ27VALT1G 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 CATHODE passive Cathode of the first Zener junction; in the unidirectional configuration it is tied to pin 3 (anode), where the 27 V device has VRWM 22 V and breakdown VBR of 25.65 V min to 28.35 V max at IT 1.0 mA.
2 CATHODE passive Cathode of the second Zener junction; in the unidirectional configuration it is tied to pin 3 (anode), and the datasheet notes that circuit tied to pins 2 and 3 is an allowed unidirectional configuration.
3 ANODE passive Common anode shared by both internal junctions, so the device protects two separate lines in one package or acts as a single bidirectional Zener when pins 1 and 2 are both used.

Key specifications

Parameter Value
Manufacturer onsemi
Package SOT-23
Category Diodes
Pins 3

CAD (KiCad official)

  • Symbol: SZMMBZ27VALT1G
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: szmmbz27valt1g-etched.step / szmmbz27valt1g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); szmmbz27valt1g.step / szmmbz27valt1g.glb are the bare package body.

Provenance

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

  • Datasheet: onsemi datasheet (8 pp, sha256 483abf790b077772, retrieved 2026-10-09, 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