component

SZMMSZ5245BT1G

Public Made by Adom

by adom

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

componentdiodesszmmsz5245bt1gfactory-2.0.0extractor-text
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity
main
Download ZIP Propose a change
Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
Name Last commit message Last updated
docs Publish 0.1.0 · Ray 1d ago
viewers szmmsz5245bt1g: viewers · Ray 1d ago
package.json Publish 0.1.0 · Ray 1d ago
page.json Set visibility: public · Ray 1d ago
README.md Publish 0.1.0 · Ray 1d ago
szmmsz5245bt1g-etched.glb Publish 0.1.0 · Ray 1d ago
szmmsz5245bt1g-etched.step szmmsz5245bt1g: factory component page (tier=mfr) · Ray 1d ago
szmmsz5245bt1g-hero.glb szmmsz5245bt1g: hero GLB from the etched model (keeps the MPN mark) · Ray 1d ago
szmmsz5245bt1g-hero.overlay.json Publish 0.1.0 · Ray 1d ago
szmmsz5245bt1g.glb Publish 0.1.0 · Ray 1d ago
szmmsz5245bt1g.kicad_mod Publish 0.1.0 · Ray 1d ago
szmmsz5245bt1g.kicad_sym Publish 0.1.0 · Ray 1d ago
szmmsz5245bt1g.lbr Publish 0.1.0 · Ray 1d ago
szmmsz5245bt1g.step Publish 0.1.0 · Ray 1d ago

SZMMSZ5245BT1G

onsemi · Zener Diodes · SOD-123

SZMMSZ5245BT1G 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, indicated by the polarity band; for the 15 V nominal part (VZ 14.25-15.75 V at IZT = 8.5 mA) it takes the positive voltage in reverse breakdown.
2 Anode passive Anode of the Zener diode (SOD-123 Style 1 pin 2), connected to the more negative side or ground in reverse-breakdown regulation.

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
Zener Voltage VZ 14.25 15 15.75 V @ IZT = 8.5 mA 3
Zener Test Current IZT 8.5 mA Test current for VZ and ZZT 3
Maximum Zener Impedance ZZT 16 Ω @ IZT = 8.5 mA 3
Maximum Zener Impedance ZZK 600 Ω @ IZK = 0.25 mA 3
Reverse Leakage Current IR 0.1 µA @ VR = 11 V 3
Forward Voltage VF 0.9 V IF = 10 mA 3
Zener Tolerance (B suffix) -5 5 % on nominal Zener voltage 3
Total Power Dissipation on FR-5 Board PD 500 mW @ TL = 75°C 1
Power Derating above 75°C PD 6.7 mW/°C Derated above 75°C 1
Thermal Resistance, Junction-to-Ambient RθJA 340 °C/W Note 2 1
Thermal Resistance, Junction-to-Lead RθJL 150 °C/W Note 2 1
Junction and Storage Temperature Range TJ, Tstg -55 150 °C 1

CAD (KiCad official)

  • Symbol: SZMMSZ5245BT1G
  • Footprint: Diode_SMD:D_SOD-123F
  • 3D model: SOD-123 (KiCad packages3D, STEP)
  • 3D model files: szmmsz5245bt1g-etched.step / szmmsz5245bt1g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); szmmsz5245bt1g.step / szmmsz5245bt1g.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 2026-10-23, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-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