component

BZT52B30

Public Made by Adom

by adom

CBI Zener Diodes, SOD-123. Pinout cross-checked by two models against the datasheet, 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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BZT52B30

CBI · Zener Diodes · SOD-123

BZT52B30 from CBI, 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 as pin 1 in the datasheet pin description; the datasheet rates the device at 350 mW power dissipation on a ceramic PCB.
2 Anode passive Anode terminal of the zener diode, identified as pin 2 in the datasheet pin description; the forward voltage is listed as 0.9 V at IF = 10 mA.

Key specifications

Parameter Value
Manufacturer CBI
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 (nominal 30 V, tolerance window) VZ 29.4 30 30.6 V @ IZT = 2 mA (Note 2: short duration test pulse) 2
Maximum reverse current IR 0.1 µA @ VR = 21.0 V 2
Maximum Zener impedance ZZT 80 Ω @ IZT = 2 mA (Note 3: f = 1kHz) 2
Maximum Zener impedance (knee) ZZK 300 Ω @ IZK = 0.5 mA (Note 3: f = 1kHz) 2
Typical temperature coefficient 24.4 29.4 mV/°C @ IZTC = 2 mA 2
Power dissipation Pd 350 mW Device mounted on ceramic PCB (Note 1) 1
Forward voltage VF 0.9 V @ IF = 10 mA (Note 2) 1
Thermal resistance, junction to ambient RθJA 357 /W 1
Junction temperature Tj 150 ℃ 1
Storage temperature range Tstg -55 150 ℃ 1

CAD (KiCad official)

  • Symbol: BZT52B30
  • Footprint: Diode_SMD:D_SOD-123F
  • 3D model: SOD-123 (KiCad packages3D, STEP)
  • 3D model files: bzt52b30-etched.step / bzt52b30-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bzt52b30.step / bzt52b30.glb are the bare package body.

Provenance

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

  • Datasheet: CBI datasheet (3 pp, sha256 e1ada6342f248676, retrieved 2026-10-18, tier: lcsc)
  • 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