component

4N33M

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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4N33M

onsemi · Transistor, Photovoltaic Output Optoisolators · DIP-6

4N33M 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 LED anode of the gallium arsenide infrared emitter; the absolute maximum continuous forward current is 80 mA and reverse voltage is 3 V (page 4).
2 CATHODE passive LED cathode of the gallium arsenide infrared emitter; the same limits apply, with continuous forward current of 80 mA and reverse voltage of 3 V (page 4).
3 N/C unconnected No internal connection, as labelled in the schematic; leave unconnected.
4 EMITTER passive Emitter of the silicon planar photodarlington detector; the emitter-collector breakdown voltage BVECO is 5 V minimum (page 4).
5 COLLECTOR passive Collector of the silicon planar photodarlington detector; collector-emitter breakdown BVCEO is 30 V minimum and continuous collector current is 150 mA maximum (page 4).
6 BASE passive Photodarlington base, brought out so an external base-emitter resistor RBE can be used to adjust switching speed and CTR (pages 7 and 8).

Key specifications

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

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Storage Temperature TSTG -40 125 °C 4
Operating Temperature TOPR -40 100 °C 4
Junction Temperature TJ -40 125 °C 4
Lead Solder Temperature TSOL 260 °C for 10 seconds 4
Total Device Power Dissipation PD 270 mW @ TA = 25°C 4
Continuous Forward Current (LED) IF 80 mA 4
Reverse Voltage (LED) VR 3 V 4
Forward Current - Peak (LED) IF(pk) 3 A 300 µs, 2% Duty Cycle 4
LED Power Dissipation PD 120 mW @ TA = 25°C 4
Collector-Emitter Breakdown Voltage BVCEO 30 V 4
Collector-Base Breakdown Voltage BVCBO 30 V 4
Emitter-Collector Breakdown Voltage BVECO 5 V 4
Detector Power Dissipation PD 150 mW @ TA = 25°C 4
Continuous Collector Current IC 150 mA 4
Collector Output Current (CTR) IC(CTR) 50 mA IF = 10 mA, VCE = 10 V, IB = 0 6
Current Transfer Ratio (CTR) IC(CTR) 500 % IF = 10 mA, VCE = 10 V, IB = 0 6
Input Forward Voltage VF 1.2 1.5 V IF = 10 mA 5
Reverse Leakage Current IR 0.001 100 µA VR = 3.0 V 5
Collector-Emitter Breakdown Voltage BVCEO 30 60 V IC = 1.0 mA, IB = 0 5
Collector-Base Breakdown Voltage BVCBO 30 100 V IC = 100 µA, IE = 0 5
Emitter-Collector Breakdown Voltage BVECO 5 10 V IE = 100 µA, IB = 0 5
Collector-Emitter Dark Current ICEO 1 100 nA VCE = 10 V, Base Open 5
Input Capacitance C 150 pF VF = 0V, f = 1.0 MHz 5
Collector-Emitter Saturation Voltage VCE(SAT) 1 V IF = 8 mA, IC = 2.0 mA 6
Turn-on Time ton 5 µs IF = 200 mA, IC = 50 mA, VCC = 10 V, RL = 100 Ω 6
Turn-off Time toff 100 µs IF = 200 mA, IC = 50 mA, VCC = 10 V, RL = 100 Ω 6
Bandwidth BW 30 kHz 6
Input-Output Isolation Voltage VISO 4170 VACRMS t = 1 Minute 6
Isolation Capacitance CISO 0.2 pF VI-O = 0 V, f = 1 MHz 6
Isolation Resistance RISO 1011 Ω VI-O = ±500 VDC, TA = 25°C 6

CAD (KiCad official)

  • Symbol: 4N33M
  • Footprint: Package_DIP:DIP-6_W7.62mm
  • 3D model: DIP-6 (KiCad packages3D, STEP)
  • 3D model files: 4n33m-etched.step / 4n33m-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 4n33m.step / 4n33m.glb are the bare package body.

Provenance

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

  • Datasheet: onsemi datasheet (14 pp, sha256 6e410ca7bcb792c4, retrieved 2026-10-18, 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