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BZT52-B39S_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-B39S_R1_00001

PANJIT International · Zener Diodes · SOD-323

BZT52-B39S_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); for BZT52-B39S the nominal Zener voltage is 39 V (38.22 to 39.78 V) at 5.0 mA.
2 Anode passive Anode of the Zener diode (pin 2 in the SOD-323 outline); device 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
Nominal Zener Voltage VZ 38.22 39 39.78 V @ IZT = 5.0 mA 2
Max Zener Impedance ZZT 90 Ω @ IZT = 5.0 mA 2
Max Zener Impedance (knee) ZZK 350 Ω @ IZK = 1.00 mA 2
Max Reverse Leakage Current IR 0.1 μA @ VR = 29.0 V 2
Power Dissipation PD 200 mW @TA=25°C, FR-4 PCB, single-sided copper, 100cm2 copper pad area 1
Operating Junction and Storage Temperature Range TJ -55 150 °C 1
Typical Thermal Resistance RθJA 650 °C/W FR-4 PCB, single-sided copper, mini pad 1

CAD (KiCad official)

  • Symbol: BZT52-B39S_R1_00001
  • Footprint: Diode_SMD:D_SOD-323
  • 3D model: SOD-323 (KiCad packages3D, STEP)
  • 3D model files: bzt52-b39s-r1-00001-etched.step / bzt52-b39s-r1-00001-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bzt52-b39s-r1-00001.step / bzt52-b39s-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 54fae9a7a2d33357, 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