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BZX84B12-7-F

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

componentdiodesbzx84b12-7-ffactory-2.0.0extractor-text

Verified BZX84B12-7-F

by Ray · last 13 Nov 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

13 Nov 2026RayPublished by the parts factory: tier mfr, 3 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • •array (skip): not an array of element pairs
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: BZX84B12-7-F · SOT-23 · 3 pins
  • ✓copper: 3 copper pads, none touching another net
  • ✓datasheet: all 3 pin names found in the 5-page datasheet
  • ✓distributor: lcsc C460803, digikey 31-BZX84B12-7-FTR-ND, mouser 621-BZX84B12-7-F
  • ✓family: SOT-23
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-4271n30c/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.4)
  • ✓pads: 3 pins = 3 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 3 pins agree
  • ✓symbol_text: no pin names collide
  • ✓viewers: viewers/footprint.html 17 kB, viewers/symbol.html 7 kB
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ bzx84b12-7-f.kicad_sym✓ bzx84b12-7-f.kicad_mod✓ bzx84b12-7-f.step
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BZX84B12-7-F

Diodes Incorporated · Zener Diodes · SOT-23

BZX84B12-7-F from Diodes Incorporated, in a SOT-23. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model). Symbol and footprint from KiCad-official CAD; the 3D model is generated from the datasheet's package dimensions.

Pinout

Pin Name Type Function
1 A passive Anode of the Zener diode, which connects to the diode symbol in the device schematic (BZX84B12: VZ 11.8V to 12.2V at IZT = 5.0mA).
2 NC unconnected No internal connection, shown as an unconnected terminal in the device schematic.
3 K passive Cathode of the Zener diode, which connects to the diode symbol in the device schematic (BZX84B12: VZ 11.8V to 12.2V at IZT = 5.0mA).

Key specifications

Parameter Value
Manufacturer Diodes Incorporated
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 (nominal) VZ 12 V @ IZT = 5.0mA 2
Zener Voltage Range VZ 11.8 12.2 V @ IZT = 5.0mA, short duration pulse 2
Maximum Zener Impedance ZZT 25 Ω @ IZT = 5.0mA, f = 1kHz 2
Maximum Zener Impedance (knee) ZZK 150 Ω @ IZK = 1.0mA, f = 1kHz 2
Maximum Reverse Current IR 0.1 µA VR = 8.0V, short duration pulse 2
Temperature Coefficient 6 10 mV/°C @ IZT = 5.0mA 2
Zener Voltage Tolerance VZ -2 2 % B grade 1
Forward Voltage VF 0.9 V IF = 10mA, TA = +25°C 2
Power Dissipation (Note 5) PD 300 mW Device mounted on FR-4 PCB with recommended pad layout 2
Power Dissipation (Note 6) PD 350 mW Valid provided terminals are kept at ambient temperature 2
Thermal Resistance, Junction to Ambient (Note 5) RϴJA 417 °C/W FR-4 PCB with recommended pad layout 2
Thermal Resistance, Junction to Ambient (Note 6) RϴJA 357 °C/W Terminals kept at ambient temperature 2
Operating and Storage Temperature Range TJ, TSTG -65 150 °C 2

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part Material Colour / plating Datasheet says Page
contacts tin • Terminals: Solderable per MIL-STD-202, Method 208 Lead-Free Plating (Matte Tin Finish Annealed over Alloy 42 Leadframe). 1

CAD (land: KiCad; 3D: generated from the datasheet)

  • Symbol: BZX84B12-7-F
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23, generated on the KiCad land (body 1.3 x 2.9 mm, terminals on the pads, 1.025 mm tall, datasheet A, nominal). KiCad's stock model for this land is taller than the datasheet allows, so the model is generated from the datasheet drawing; the dimensions come from the datasheet drawing where it was read and are defaults otherwise (see provenance.model_3d_generated), not the manufacturer's CAD (STEP)
  • 3D model files: bzx84b12-7-f-etched.step / bzx84b12-7-f-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bzx84b12-7-f.step / bzx84b12-7-f.glb are the bare package body.

Provenance

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

  • Datasheet: Diodes Incorporated datasheet (5 pp, sha256 d7505f68264bd157, retrieved 2026-11-13, tier: manufacturer)
  • 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: land: KiCad official libraries (CC-BY-SA 4.0); 3D: generated from the datasheet's package dimensions (provenance.model_3d_generated).

Datasheet PDF