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BZT52-B18S_R1_00001

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PANJIT International Zener Diodes, SOD-323. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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BZT52-B18S_R1_00001

PANJIT International · Zener Diodes · SOD-323

BZT52-B18S_R1_00001 from PANJIT International, in a SOD-323. 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 of the Zener diode (marked pin 1 in the SOD-323 outline); BZT52-B18S has 18 V nominal Zener voltage (17.64 to 18.36 V) at 5.0 mA.
2 A passive Anode of the Zener diode (pin 2 in the SOD-323 outline); power dissipation is 200 mW at TA=25°C.

Key specifications

Parameter Value
Manufacturer PANJIT International
Package SOD-323
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) VZ 17.64 18 18.36 V IZT = 5.0 mA 2
Max Zener Impedance ZZT 50 Ω IZT = 5.0 mA 2
Max Zener Impedance (knee) ZZK 225 Ω IZK = 1.00 mA 2
Max Reverse Leakage Current IR 0.1 μA VR = 14.0 V 2
Power Dissipation PD 200 mW TA=25°C, FR-4 PCB, 100cm2 copper pad 1
Typical Thermal Resistance RθJA 650 °C/W FR-4 PCB, single-sided copper, mini pad 1
Operating Junction and Storage Temperature Range TJ -55 150 °C 1

CAD (KiCad official)

  • Symbol: BZT52-B18S_R1_00001
  • Footprint: Diode_SMD:D_SOD-323
  • 3D model: SOD-323 (KiCad packages3D, STEP)
  • 3D model files: bzt52-b18s-r1-00001-etched.step / bzt52-b18s-r1-00001-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bzt52-b18s-r1-00001.step / bzt52-b18s-r1-00001.glb are the bare package body.

Provenance

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

  • Datasheet: PANJIT International datasheet (6 pp, sha256 953b9bc7b6a069ae, retrieved 2026-10-22, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-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