component

1N5242BTR

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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1N5242BTR

onsemi · Zener Diodes · DO-35

1N5242BTR 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 tolerance (B suffix) -5 5 % B suffix 1
Zener voltage VZ at IZT1 (nominal) VZ 12 V IZT1 = 20 mA 2
Test current IZT2 (max) IZT2 0.25 mA 2
Reverse leakage current IR (max) IR 1 μA VR = 9.1 V 2
Dynamic resistance ZZ at IZT1 (max) ZZ 30 Ω f = 1 kHz; IZT1 = 20 mA 2
Dynamic resistance ZZK at IZT2 (max) ZZK 600 Ω f = 1 kHz; IZT2 = 0.25 mA 2
Temperature coefficient of VZ (typ) 0.077 %/K 2
Power dissipation (max) Ptot 500 mW TL 25 °C 1
Forward voltage (max) VF 1.1 V IF = 200 mA 1
Junction temperature (max) Tj 175 °C 1
Storage temperature range Tstg -65 175 °C 1
Thermal resistance junction to ambient air RthJA 300 K/W I = 4 mm, TL = constant 1

CAD (KiCad official)

  • Symbol: 1N5242BTR
  • 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 69898c0555b08902, retrieved 2026-10-22, 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