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BZX55B20_AY_10001

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PANJIT International Zener Diodes, DO-35. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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BZX55B20_AY_10001

PANJIT International · Zener Diodes · DO-35

BZX55B20_AY_10001 from PANJIT International, in a DO-35. 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 of the BZX55B20 zener diode, which conducts in reverse breakdown at Vz 19.60 to 20.40 V (Iz = 5 mA) within the 500 mW power dissipation rating.
2 A passive Anode of the BZX55B20 zener diode, with forward voltage of 1 V max at IF = 100 mA.

Key specifications

Parameter Value
Manufacturer PANJIT International
Package DO-35
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 Vz 19.6 20.4 V Iz = 5.0 mA 2
Forward Voltage (table test current) Vf 0.2 1 V If = 100 mA 2
Reverse Current Ir 0.1 μA Vr = 15.0 V 2
Dynamic Impedance Zzt 55 Ohms Izt = 5.0 mA 2
Knee Impedance Zzk 220 Ohms Izk = 1.0 mA 2
Forward Voltage VF 1 V IF = 100mA 1
Thermal Resistance Junction to Ambient Air RthA 0.3 K/mW Leads at 10 mm from case kept at ambient temperature 1
Power Dissipation PTOT 500 mW Tamb = 25 °C, leads at 8mm from case kept at ambient temperature 1
Junction Temperature TJ 175 °C 1
Storage Temperature Range TS -65 175 °C 1

CAD (KiCad official)

  • Symbol: BZX55B20_AY_10001
  • Footprint: Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal
  • 3D model: DO-35 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: PANJIT International datasheet (3 pp, sha256 035820bc76cb93d5, retrieved 2026-10-31, 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