component

MMSZ5272BT3G

Public Made by Adom

by adom

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

componentdiodesmmsz5272bt3gfactory-2.0.0extractor-text

Verified MMSZ5272BT3G

by Ray · last 30 Oct 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

30 Oct 2026RayPublished by the parts factory: tier mfr, 2 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: MMSZ5272BT3G · SOD-123 · 2 pins
  • ✓copper: 2 copper pads, none touching another net
  • ✓datasheet: all 2 pin names found in the 8-page datasheet
  • •distributor (warn): no ['digikey', 'mouser'] number
  • ✓family: D_SOD-123F
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-53j5p5uh/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 2 records
  • ✓package_fit: height and body within the datasheet's package drawing (datasheet p.7)
  • ✓pads: 2 pins = 2 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 2 pins agree
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ mmsz5272bt3g.kicad_sym✓ mmsz5272bt3g.kicad_mod✓ mmsz5272bt3g.step
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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 2h ago
viewers mmsz5272bt3g: viewers · Ray 2h ago
mmsz5272bt3g-etched.glb Publish 0.1.0 · Ray 2h ago
mmsz5272bt3g-etched.step mmsz5272bt3g: factory component page (tier=mfr) · Ray 2h ago
mmsz5272bt3g-hero.glb mmsz5272bt3g: hero GLB from the etched model (keeps the MPN mark) · Ray 2h ago
mmsz5272bt3g-hero.overlay.json Publish 0.1.1 · Ray 2h ago
mmsz5272bt3g.glb Publish 0.1.0 · Ray 2h ago
mmsz5272bt3g.kicad_mod Publish 0.1.0 · Ray 2h ago
mmsz5272bt3g.kicad_sym Publish 0.1.0 · Ray 2h ago
mmsz5272bt3g.lbr Publish 0.1.1 · Ray 2h ago
mmsz5272bt3g.step Publish 0.1.0 · Ray 2h ago
package.json Publish 0.1.1 · Ray 2h ago
page.json Set visibility: public · Ray 2h ago
README.md Publish 0.1.0 · Ray 2h ago
verification.json Verified: Published by the parts factory: tier mfr, 2 pins · Ray 2h ago

MMSZ5272BT3G

onsemi · Zener Diodes · SOD-123

MMSZ5272BT3G 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, identified on the package by the polarity band.
2 Anode passive Anode terminal of the Zener diode, the opposite terminal to the cathode.

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 VZ 104.5 110 115.5 V @ IZT = 1.1 mA; TA = 25°C 3
Maximum Zener Impedance ZZT 750 Ω @ IZT = 1.1 mA 3
Maximum Zener Impedance ZZK 3000 Ω @ IZK = 0.25 mA 3
Reverse Leakage Current IR 0.1 µA @ VR = 84 V 3
Zener voltage tolerance (B suffix, ±5%) -5 5 % B suffix standard tolerance on nominal Zener voltage 3
Total Power Dissipation on FR-5 Board PD 500 mW FR-5 board (Note 1) @ TL = 75°C 1
Thermal Resistance, Junction-to-Ambient RJA 340 °C/W Note 2 1
Thermal Resistance, Junction-to-Lead RJL 150 °C/W Note 2 1
Junction and Storage Temperature Range TJ, Tstg -55 150 °C 1
Power Derating PD 6.7 mW/°C Derated above TL = 75°C (FR-5 board) 1

CAD (KiCad official)

  • Symbol: MMSZ5272BT3G
  • Footprint: Diode_SMD:D_SOD-123F
  • 3D model: SOD-123 (KiCad packages3D, STEP)
  • 3D model files: mmsz5272bt3g-etched.step / mmsz5272bt3g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mmsz5272bt3g.step / mmsz5272bt3g.glb are the bare package body.

Provenance

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

  • Datasheet: onsemi datasheet (8 pp, sha256 2711e46b01090f07, retrieved 2026-10-30, 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