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6N139M

onsemi · Logic Output Optoisolators · DIP-8

6N139M from onsemi, in a DIP-8. 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 N/C unconnected No internal connection; the datasheet schematic labels two pins as N/C for the 6N138M/6N139M, and pin 1 is one of them, so leave it unconnected.
2 ANODE passive LED anode input; the AlGaAs input LED is rated at 20 mA average forward current per channel, 40 mA peak (50% duty, 1 ms), and 5 V maximum reverse voltage.
3 CATHODE passive LED cathode input; the input LED is rated at 20 mA average forward current, 40 mA peak, 1.0 A transient (≤1 µs), and 5 V maximum reverse voltage.
4 N/C unconnected No internal connection; the datasheet schematic labels two pins as N/C for the 6N138M/6N139M, and pin 4 is one of them, so leave it unconnected.
5 GND power_in Detector ground reference; the output stage and supply are referenced to this pin, and the input side is isolated from it by 5000 VRMS withstand voltage.
6 VO output Open-collector logic output of the split darlington detector, rated for 60 mA average output current and an output voltage of -0.5 V to 7 V (6N138M) or -0.5 V to 18 V (6N139M).
7 VB power_in Base connection of the output darlington, which must be left open on the 6N138M and 6N139M (datasheet note 3 specifies pin 7 open for these devices).
8 VCC power_in Detector supply voltage, with absolute maximum of 7 V for the 6N138M and 18 V for the 6N139M (-0.5 V minimum for both), and the CTR and switching specifications are given at VCC = 5 V.

Key specifications

Parameter Value
Manufacturer onsemi
Package DIP-8
Category Optoisolators
Pins 8

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 2
Operating Temperature TOPR -40 100 °C 2
Lead Solder Temperature TSOL 260 °C Wave solder only, 10 sec 2
DC/Average Forward Input Current IF (avg) 20 mA Each channel 2
Peak Forward Input Current IF (pk) 40 mA 50% duty cycle, 1 ms P.W., each channel 2
Peak Transient Input Current IF (trans) 1 A ≤1µs P.W., 300 pps 2
Reverse Input Voltage VR 5 V Each channel 2
Input Power Dissipation PD 35 mW Each channel 2
Average Output Current IO (avg) 60 mA Each channel 2
Emitter-Base Reverse Voltage VER 0.5 V 6N138M and 6N139M 2
Supply Voltage, Output Voltage VCC, VO -0.5 18 V 6N139M and HCPL2731M 2
Output Power Dissipation PO 100 mW Each channel 2
Input Forward Voltage VF 1.3 1.7 V TA = 25°C 3
Input Forward Voltage VF 1.75 V Each channel (IF = 1.6mA) 3
Input Reverse Breakdown Voltage BVR 5 19 V TA = 25°C, IR = 10µA 3
Logic HIGH Output Current IOH 0.0036 100 µA IF = 0mA, VO = VCC = 18V 3
Logic LOW Supply Current ICCL 0.4 1.5 mA IF = 1.6mA, VO = Open, VCC = 18V 3
Logic HIGH Supply Current ICCH 0.0003 10 µA IF = 0mA, VO = Open, VCC = 18V 3
Current Transfer Ratio CTR 400 2000 % IF = 0.5mA, VO = 0.4 V, VCC = 4.5V 3
Current Transfer Ratio CTR 500 1600 % IF = 1.6mA, VO = 0.4 V, VCC = 4.5V 3
Logic LOW Output Voltage VOL 0.05 0.4 V IF = 0.5mA, IO = 2mA, VCC = 4.5V 3
Logic LOW Output Voltage VOL 0.093 0.4 V IF = 1.6mA, IO = 8mA, VCC = 4.5V 3
Logic LOW Output Voltage VOL 0.13 0.4 V IF = 5mA, IO = 15mA, VCC = 4.5V 3
Logic LOW Output Voltage VOL 0.18 0.4 V IF = 12mA, IO = 24mA, VCC = 4.5V 3
Propagation Delay Time to Logic LOW tPHL 30 µs VCC = 5V, RL = 4.7kΩ, IF = 0.5mA 4
Propagation Delay Time to Logic LOW tPHL 2.5 25 µs VCC = 5V, RL = 4.7kΩ, IF = 0.5mA, TA = 25°C 4
Propagation Delay Time to Logic LOW tPHL 2 µs VCC = 5V, RL = 270Ω, IF = 12mA 4
Propagation Delay Time to Logic LOW tPHL 0.24 1 µs VCC = 5V, RL = 270Ω, IF = 12mA, TA = 25°C 4
Propagation Delay Time to Logic HIGH tPLH 90 µs VCC = 5V, RL = 4.7kΩ, IF = 0.5mA 4
Propagation Delay Time to Logic HIGH tPLH 13.6 60 µs VCC = 5V, RL = 4.7kΩ, IF = 0.5mA, TA = 25°C 4
Propagation Delay Time to Logic HIGH tPLH 10 µs VCC = 5V, RL = 270Ω, IF = 12mA 4
Propagation Delay Time to Logic HIGH tPLH 1.3 7 µs VCC = 5V, RL = 270Ω, IF = 12mA, TA = 25°C 4
Common Mode Transient Immunity at Logic HIGH /CMH/ 1000 10000 V/µs IF = 0mA, /VCM/ = 10VP-P, TA = 25°C, RL = 2.2kΩ 4
Common Mode Transient Immunity at Logic LOW /CML/ 1000 10000 V/µs IF = 1.6mA, /VCM/ = 10VP-P, TA = 25°C, RL = 2.2kΩ 4
Withstand Insulation Test Voltage VISO 5000 VRMS RH ≤ 50%, TA = 25°C, II-O ≤ 10µA, 50Hz, t = 1 min. 5

CAD (KiCad official)

  • Symbol: 6N139M
  • Footprint: Package_DIP:DIP-8_W7.62mm
  • 3D model: DIP-8 (KiCad packages3D, STEP)
  • 3D model files: 6n139m-etched.step / 6n139m-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 6n139m.step / 6n139m.glb are the bare package body.

Provenance

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

  • Datasheet: onsemi datasheet (14 pp, sha256 d4fb99b50a824826, retrieved 2026-10-14, 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