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Contents

README

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6N137-L

Lite On · Logic Output Optoisolators · DIP-8

6N137-L from Lite On, 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 NC unconnected No connection; internally not connected on the input side.
2 ANODE passive LED anode input; recommended high-level input current IFH is 5 to 15 mA, with 20 mA maximum average forward current.
3 CATHODE passive LED cathode input; return for the LED current, with reverse input voltage limited to 5 V.
4 NC unconnected No connection; internally not connected on the input side.
5 GND power_in Output-side ground; a 0.1 uF bypass capacitor must be connected between pin 8 and pin 5.
6 VO output Open-collector Schottky-clamped output, needs pull-up resistor RL of 330 ohm to 4 kOhm, 7 V maximum output voltage and 50 mA maximum collector current.
7 VE input Enable input to strobe the detector; low level 0 to 0.8 V disables output to high, high level 2 V to VCC, may be left NC (output follows LED), maximum VCC+0.5 V.
8 VCC power_in Supply voltage, 2.7 to 3.6 V or 4.5 to 5.5 V recommended, 7 V absolute maximum, with 0.1 uF bypass to pin 5.

Key specifications

Parameter Value
Manufacturer Lite On
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
Average Forward Input Current IF 20 mA Note 2 6
Reverse Input Voltage VR 5 V 6
Power Dissipation PI 40 mW 6
Enable Input Current IE 5 mA 6
Output Collector Current IO 50 mA 6
Output Collector Voltage VO 7 V 6
Output Collector Power Dissipation Po 85 mW 6
Isolation Voltage Viso 5000 Vrms 6
Supply Voltage VCC 7 V 6
Operating Temperature Topr -40 85 oC 6
Storage Temperature Tstg -55 125 oC 6
Lead Solder Temperature Tsol 260 oC 260oC for 10 seconds (note 2) 6
Operating Temperature TA -40 85 oC 7
Supply Voltage (3.3V range) VCC 2.7 3.6 V 7
Supply Voltage (5V range) VCC 4.5 5.5 V 7
Low Level Input Current IFL 0 250 μA 7
High Level Input Current IFH 5 15 mA 7
Low Level Enable Voltage VEL 0 0.8 V 7
High Level Enable Voltage VEH 2 V 7
Output Pull-up Resistor (min) RL 330 Ω 7
Output Pull-up Resistor (max) RL 4 kΩ 7
Fan Out N 5 TTL Loads at RL=1kΩ per channel 7
Input Forward Voltage (3.3V table) VF 1.38 1.7 V IF= 10mA 8
Input Reverse Voltage (3.3V table) BVR 5 V IR = 10μA 8
Input Threshold Current (3.3V table) ITH 1.5 5 mA VE = 2V, VCC = 3.3V, VO = 0.6V, IOL (sinking) = 13mA 8
High Level Supply Current (3.3V table) ICCH 3.8 10 uA VE= 0.5V, VCC= 3.3V, IF = 0mA 8
Low Level Supply Current (3.3V table) ICCL 5.8 13 mA VE= 0.5V, VCC= 3.3V, IF =10mA 8
High Level Enable Current (3.3V table) IEH -1.6 mA VCC = 3.3V, VE = 2V 8
Low Level Enable Current (3.3V table) IEL -0.41 -1.6 mA VCC = 3.3V, VE = 0.5V 8
High Level Enable Voltage (3.3V table) VEH 2 V 8
Low Level Enable Voltage (3.3V table) VEL 0.8 V 8
High Level Output Current (3.3V table) IOH 5 100 μA VE = 2V, VCC = 3.3V, VO = 3.3V, IF = 250μA 8
Low Level Output Voltage (3.3V table) VOL 0.3 0.6 V VE = 2V, VCC =3.3V, IF = 5mA, IOL (sinking) = 13mA 8
Input Forward Voltage (5V table) VF 1.38 1.7 V IF= 10mA 9
Input Reverse Voltage (5V table) BVR 5 V IR = 10μA 9
Input Threshold Current (5V table) ITH 1.35 5 mA VCC = 5.5V, VO = 0.6V, IOL > 13mA 9
High Level Supply Current (5V table) ICCH 6.1 10 uA VE = 0.5V, VCC = 5.5V, IF = 0mA 9
Low Level Supply Current (5V table) ICCL 8.3 13 mA VE = 0.5V, VCC= 5.5V, IF =10mA 9
High Level Enable Current (5V table) IEH -0.6 -1.6 mA VCC = 5.5V, VE = 2V 9
Low Level Enable Current (5V table) IEL -0.9 -1.6 mA VCC = 5.5V, VE = 0.5V 9
High Level Enable Voltage (5V table) VEH 2 V 9
Low Level Enable Voltage (5V table) VEL 0.8 V 9
High Level Output Current (5V table) IOH 0.9 100 μA VE = 2V, VCC = 5.5V, VO = 5.5V, IF = 250μA 9
Low Level Output Voltage (5V table) VOL 0.4 0.6 V VCC =5.5V, IF = 5mA, IOL (sinking) = 13mA 9
Propagation Delay Time to High Output Level (3.3V) tPLH 25 48 90 ns RL = 350Ω, CL =15pF 10
Propagation Delay Time to Low Output Level (3.3V) tPHL 25 35 75 ns 10
Propagation Delay Skew (3.3V) tPSK 40 10
Propagation Delay Time to High Output Level (5V, TA=25°C) tPLH 25 40 75 ns TA = 25oC RL=350Ω, CL =15pF 10
Propagation Delay Time to High Output Level (5V, over temperature) tPLH 100 ns Specified over recommended temperature, 4.5V ≤ VCC ≤ 5.5V (table footer) 10
Propagation Delay Time to Low Output Level (5V, TA=25°C) tPHL 25 32 75 ns TA = 25oC RL=350Ω, CL =15pF 10
Propagation Delay Time to Low Output Level (5V, over temperature) tPHL 100 ns Specified over recommended temperature, 4.5V ≤ VCC ≤ 5.5V (table footer) 10
Propagation Delay Skew (5V) tPSK 40 10
Logic High Common Mode Transient Immunity (3.3V) /CMH/ 10 15 kV/μs VCC = 3.3V, VCM = 1000V, RL = 350Ω, IF = 0mA, TA = 25oC 11
Logic High Common Mode Transient Immunity (5V) /CMH/ 10 15 kV/μs VCC = 5V, VCM = 1000V, RL = 350Ω, IF = 0mA, TA = 25oC 11
Logic Low Common Mode Transient Immunity (3.3V) /CML/ 10 15 kV/μs VCC = 3.3V, VCM = 1000V, RL = 350Ω, IF = 10.0mA, TA = 25oC 11
Logic Low Common Mode Transient Immunity (5V) /CML/ 10 15 kV/μs VCC = 5V, VCM = 1000V, RL = 350Ω, IF = 10.0mA, TA = 25oC 11
Input-Output Insulation Leakage Current II-O 1 μA 45% RH, t = 5s, VI-O = 3kV DC, TA =25oC 12
Withstand Insulation Test Voltage VISO 5000 VRMS RH ≤ 50%, t = 1min, TA = 25oC 12

CAD (KiCad official)

  • Symbol: 6N137-L
  • Footprint: Package_DIP:DIP-8_W7.62mm
  • 3D model: DIP-8 (KiCad packages3D, STEP)
  • 3D model files: 6n137-l-etched.step / 6n137-l-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 6n137-l.step / 6n137-l.glb are the bare package body.

Provenance

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

  • Datasheet: Lite On datasheet (19 pp, sha256 84ad24fc0e963259, retrieved 2026-10-15, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+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