component

SZMMSZ4688T1G

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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docs Publish 0.1.0 · Ray 9d ago
viewers szmmsz4688t1g: viewers · Ray 9d ago
package.json Publish 0.1.0 · Ray 9d ago
page.json Set visibility: public · Ray 9d ago
README.md Publish 0.1.0 · Ray 9d ago
szmmsz4688t1g-etched.glb Publish 0.1.0 · Ray 9d ago
szmmsz4688t1g-etched.step szmmsz4688t1g: factory component page (tier=lcsc) · Ray 9d ago
szmmsz4688t1g-hero.glb szmmsz4688t1g: hero GLB from the etched model (keeps the MPN mark) · Ray 9d ago
szmmsz4688t1g-hero.overlay.json Publish 0.1.0 · Ray 9d ago
szmmsz4688t1g.glb Publish 0.1.0 · Ray 9d ago
szmmsz4688t1g.kicad_mod Publish 0.1.0 · Ray 9d ago
szmmsz4688t1g.kicad_sym Publish 0.1.0 · Ray 9d ago
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szmmsz4688t1g.step Publish 0.1.0 · Ray 9d ago

SZMMSZ4688T1G

onsemi · Zener Diodes · SOD-123

SZMMSZ4688T1G 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 terminal of the Zener diode, marked by the polarity band on the package; the datasheet gives no pin-specific electrical limits.
2 Anode passive Anode terminal of the Zener diode, opposite the cathode polarity band; the datasheet gives no pin-specific electrical limits.

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 (nominal 4.7 V) VZ 4.47 4.7 4.94 V @ IZT; nominal measured at TL = 30°C ±1°C (Note 3) 3
Reverse Leakage Current IR 10 µA @ VR = 3 V 3
Forward Voltage VF 0.9 V @ IF = 10 mA 2
Total Power Dissipation on FR-5 Board PD 500 mW FR-5 board (Note 1) @ TL = 75°C 1
Derating above 75°C PD 6.7 mW/°C Derated above TL = 75°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
Junction and Storage Temperature Range TJ, Tstg -55 150 °C 1

CAD (KiCad official)

  • Symbol: SZMMSZ4688T1G
  • Footprint: Diode_SMD:D_SOD-123F
  • 3D model: SOD-123 (KiCad packages3D, STEP)
  • 3D model files: szmmsz4688t1g-etched.step / szmmsz4688t1g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); szmmsz4688t1g.step / szmmsz4688t1g.glb are the bare package body.

Provenance

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

  • Datasheet: onsemi datasheet (7 pp, sha256 7a469441673d2c21, 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