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Contents

README

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1N4148-T50R

onsemi · Switching Diodes · DO-35

1N4148-T50R 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 CATHODE passive Cathode terminal, identified by the black band at one end of the DO-35 glass body; the device has a maximum repetitive reverse voltage of 100 V and a DC forward current of 300 mA.
2 ANODE passive Anode terminal, at the end of the body opposite the cathode band; forward voltage is 1.0 V max at IF = 10 mA for the 914/916/4148 types.

Key specifications

Parameter Value
Manufacturer onsemi
Package DO-35
Category Diodes
Pins 2

CAD (KiCad official)

  • Symbol: 1N4148-T50R
  • 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 4579d7191b3ae801, retrieved 2026-10-16, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (vision), consensus claude-opus-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