component

4N25M

Public Made by Adom

by adom

onsemi Transistor, Photovoltaic Output Optoisolators, DIP-6. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Generated by kicad-footprint-generator · KiCad file format 20260206
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docs Publish 0.1.0 · Ray 19d ago
viewers 4n25m: viewers · Ray 19d ago
4n25m-etched.glb 4n25m: factory component page (tier=lcsc) · Ray 19d ago
4n25m-etched.step 4n25m: factory component page (tier=lcsc) · Ray 19d ago
4n25m-hero.glb 4n25m: hero GLB from the etched model (keeps the MPN mark) · Ray 19d ago
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4n25m.lbr Publish 0.1.0 · Ray 19d ago
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4N25M

onsemi · Transistor, Photovoltaic Output Optoisolators · DIP-6

4N25M from onsemi, in a DIP-6. 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 ANODE passive Anode of the gallium arsenide infrared emitting diode (LED input side), which is driven to control the phototransistor output.
2 CATHODE passive Cathode of the gallium arsenide infrared emitting diode (LED input side), completing the LED drive path between pins 1 and 2.
3 NC unconnected No connection; this pin is not internally connected and is left unused in the package.
4 EMITTER passive Emitter of the silicon phototransistor output, which conducts in response to light from the internal LED.
5 COLLECTOR passive Collector of the silicon phototransistor output, pulled toward the supply through the external load to produce the output signal.
6 BASE passive Base of the phototransistor, which may be left open for light-only operation or biased through an external resistor to set sensitivity and speed.

Key specifications

Parameter Value
Manufacturer onsemi
Package DIP-6
Category Optoisolators
Pins 6

CAD (KiCad official)

  • Symbol: 4N25M
  • Footprint: Package_DIP:DIP-6_W7.62mm
  • 3D model: DIP-6 (KiCad packages3D, STEP)
  • 3D model files: 4n25m-etched.step / 4n25m-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 4n25m.step / 4n25m.glb are the bare package body.

Provenance

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

  • Datasheet: onsemi datasheet (13 pp, sha256 dc8d7bad2bb14e07, retrieved 2026-10-09, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-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