component

AD-MMBZ5245B

Public Made by Adom

by adom

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

componentdiodesad-mmbz5245bfactory-2.0.0extractor-text

Verified AD-MMBZ5245B

by Ray · last 31 Oct 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

31 Oct 2026RayPublished by the parts factory: tier lcsc, 3 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: AD-MMBZ5245B · SOT-23 · 3 pins
  • ✓copper: 3 copper pads, none touching another net
  • ✓datasheet: all 3 pin names found in the 8-page datasheet
  • •distributor (warn): no ['digikey', 'mouser'] number
  • ✓family: SOT-23
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-bx4rjtf5/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 2 records
  • •package_fit (skip): no component.package_dims on the page: the model is unchecked against the datasheet drawing
  • ✓pads: 3 pins = 3 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 3 pins agree
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ ad-mmbz5245b.kicad_sym✓ ad-mmbz5245b.kicad_mod✓ ad-mmbz5245b.step
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Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs Publish 0.1.0 · Ray 3d ago
viewers ad-mmbz5245b: viewers · Ray 3d ago
ad-mmbz5245b-etched.glb Publish 0.1.0 · Ray 3d ago
ad-mmbz5245b-etched.step ad-mmbz5245b: factory component page (tier=lcsc) · Ray 3d ago
ad-mmbz5245b-hero.glb ad-mmbz5245b: hero GLB from the etched model (keeps the MPN mark) · Ray 3d ago
ad-mmbz5245b-hero.overlay.json Publish 0.1.0 · Ray 3d ago
ad-mmbz5245b.glb Publish 0.1.0 · Ray 3d ago
ad-mmbz5245b.kicad_mod Publish 0.1.0 · Ray 3d ago
ad-mmbz5245b.kicad_sym Publish 0.1.0 · Ray 3d ago
ad-mmbz5245b.lbr Publish 0.1.0 · Ray 3d ago
ad-mmbz5245b.step Publish 0.1.0 · Ray 3d ago
package.json Publish 0.1.0 · Ray 3d ago
page.json Set visibility: public · Ray 3d ago
README.md Publish 0.1.0 · Ray 3d ago
verification.json Verified: Published by the parts factory: tier lcsc, 3 pins · Ray 3d ago

AD-MMBZ5245B

Changjing · Zener Diodes · SOT-23

AD-MMBZ5245B from Changjing, 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 A passive Anode of the zener diode, shown on page 1 as the diode symbol's input side; the zener voltage is 15V nominal (14.25V to 15.75V) at IZT = 8.5mA for the 5245B.
2 NC unconnected Not connected; page 1 shows pin 2 as an open dot with no connection to the diode symbol.
3 K passive Cathode of the zener diode, shown on page 1 as the diode symbol's bar side; maximum reverse leakage is 0.1µA at VR = 11V for the 5245B.

Key specifications

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

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, Tj = 25°C 2
Test Current IZT 8.5 mA Tj = 25°C 2
Maximum Zener Impedance ZZT 16 Ω IZT = 8.5 mA, f = 1kHz 2
Maximum Zener Impedance (knee) ZZK 600 Ω IZK = 0.25mA, f = 1kHz 2
Maximum Reverse Leakage Current IR 0.1 µA VR = 11 V 2
Forward Voltage VF 0.9 V IF = 10mA 2
Power dissipation PD 300 mW Tj = 25°C 2
Thermal resistance from junction to ambient RθJA 417 °C/W 2
Operating junction and storage temperature range Tj, Tstg -55 150 °C 2

CAD (KiCad official)

  • Symbol: AD-MMBZ5245B
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: ad-mmbz5245b-etched.step / ad-mmbz5245b-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ad-mmbz5245b.step / ad-mmbz5245b.glb are the bare package body.

Provenance

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

  • Datasheet: Changjing datasheet (8 pp, sha256 497598648f9ccaaa, retrieved 2026-10-31, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-opus-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