component

TFZGTR12B

Public Made by Adom

by adom

ROHM Semicon Zener Diodes, SOD-323FL. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, 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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TFZGTR12B

ROHM Semicon · Zener Diodes · SOD-323FL

TFZGTR12B from ROHM Semicon, in a SOD-323FL. 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 K passive Cathode: the banded/marked end per the datasheet; pad 1 of the KiCad diode footprint.
2 A passive Anode.

Key specifications

Parameter Value
Manufacturer ROHM Semicon
Package SOD-323FL
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 (TFZ 12B) VZ 11.44 12.03 V Iz = 10 mA; VZ test time is 40ms 2
Dynamic impedance (TFZ 12B) ZZ 12 Ω Iz = 10 mA 2
Reverse current (TFZ 12B) IR 0.2 μA VR = 9.0 V 2
Power dissipation PD 500 mW Ta = 25℃ 1
Junction temperature Tj 150 ℃ 1
Storage temperature Tstg -55 150 ℃ 1

CAD (KiCad official)

  • Symbol: TFZGTR12B
  • Footprint: Diode_SMD:D_SOD-323F
  • 3D model: SOD-323FL (KiCad packages3D, STEP)
  • 3D model files: tfzgtr12b-etched.step / tfzgtr12b-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tfzgtr12b.step / tfzgtr12b.glb are the bare package body.

Provenance

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

  • Datasheet: ROHM Semicon datasheet (9 pp, sha256 5aba6fc346432a1d, retrieved 2026-10-15, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins, primary cathode-band convention (convention), consensus off (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