component

1N5231BTR

Public Made by Adom

by adom

onsemi Zener Diodes, DO-35. 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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1N5231BTR

onsemi · Zener Diodes · DO-35

1N5231BTR from onsemi, 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: the banded/marked end per the datasheet; pad 1 of the KiCad diode footprint.
2 A passive Anode.

Key specifications

Parameter Value
Manufacturer onsemi
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 (nominal 5.1 V, min/max for 1N5231B) VZ 4.845 5.1 5.355 V TA = 25°C; @ IZ (Note 2): TL 30°C ±1°C, 3/8 in lead length 2
Temperature coefficient (printed ±0.030) TC -0.03 0.03 %/°C 2
Forward voltage VF 1.2 V IF = 200 mA 2
Power dissipation PD 500 mW 1
Derating above 50°C 4 mW/°C 1
Storage temperature range TSTG -65 200 °C 1
Operating junction temperature range TJ -65 200 °C 1
Lead temperature 230 °C 1/16 inch from case for 10 s 1
Dynamic impedance (printed single value, no min/max) ZZ 17 Ω @ IZ = 20 mA 2
Dynamic impedance at knee (printed single value, no min/max) ZZK 1600 Ω @ IZK = 0.25 mA 2
Reverse leakage current (printed single value, no min/max) IR 5 µA @ VR = 2.0 V 2

CAD (KiCad official)

  • Symbol: 1N5231BTR
  • 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: onsemi datasheet (6 pp, sha256 b3f8d18177d8624a, retrieved 2026-10-16, 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