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Contents

README

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1N5230BTR

onsemi · Zener Diodes · DO-35

1N5230BTR 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, identified by the color band on the DO-35 glass case; the zener (1N5230B VZ 4.7V nominal at the test current) is reverse biased with the cathode positive.
2 A passive Anode, the axial lead opposite the color band on the DO-35 glass case.

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 VZ 4.465 4.7 4.935 V IZ = 20 mA 3
Zener Impedance ZZ 19 Ω IZ = 20 mA 3
Zener Knee Impedance ZZK 1900 Ω IZK = 0.25 mA 3
Reverse Current IR 5 μA VR = 2.0 V 3
Forward Voltage VF 1.2 V IF = 200 mA 3
Zener Voltage Tolerance -5 5 % Tolerance = 5% 2
Temperature Coefficient TC -0.03 0.03 %/°C 3
Power Dissipation PD 500 mW TA = 25°C 2
Power Derating above 50°C 4 mW/°C Derate above 50°C 2
Storage Temperature Range TSTG -65 200 °C 2
Operating Junction Temperature Range TJ -65 200 °C 2
Lead Temperature 230 °C 1/16 inch from case for 10 s 2

CAD (KiCad official)

  • Symbol: 1N5230BTR
  • 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 (7 pp, sha256 1f33582954b71077, retrieved 2026-10-23, tier: manufacturer)
  • 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