component
6N139S-TA1-L
Public Made by Adomby adom
Lite On Logic Output Optoisolators, SOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdown6N139S-TA1-L
Lite On · Logic Output Optoisolators · SOP-8
6N139S-TA1-L from Lite On, in a SOP-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 internal connection. |
| 2 | ANODE | input | LED anode input; datasheet specifies average forward input current IF max 20 mA and reverse input voltage VR max 5 V. |
| 3 | CATHODE | input | LED cathode input; return for the input LED, with reverse input voltage limited to 5 V. |
| 4 | NC | unconnected | No internal connection. |
| 5 | GND | power_in | Ground for the detector and output stage; a 0.1 µF bypass capacitor must be connected between pin 8 and pin 5. |
| 6 | VO | output | Open-collector output of the output transistor, driven low when the LED is on; 6N139 output voltage max 18 V and output collector current max 50 mA. |
| 7 | VB | power_in | Base access terminal of the photodetector that allows gain bandwidth adjustment; leave open when not used. |
| 8 | VCC | power_in | Detector supply voltage, 6N139 absolute maximum 18 V, with a 0.1 µF bypass capacitor to pin 5; may be tied to VO for photo-Darlington operation. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Lite On |
| Package | SOP-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 | 6 | |||
| Reverse Input Voltage | VR | 5 | V | 6 | |||
| Power Dissipation | PI | 35 | mW | 6 | |||
| Output Collector Current | IO | 50 | mA | 6 | |||
| Output Voltage (6N139) | VO | 18 | V | 6 | |||
| Output Collector Power Dissipation | Po | 100 | mW | 6 | |||
| Isolation Voltage | Viso | 5000 | Vrms | 6 | |||
| Supply Voltage (6N139) | VCC | 18 | V | 6 | |||
| Operating Temperature | Topr | -40 | 85 | °C | 6 | ||
| Storage Temperature | Tstg | -55 | 125 | °C | 6 | ||
| Lead Solder Temperature | Tsol | 260 | °C | 10 s (note 2) | 6 | ||
| Input Forward Voltage | VF | 1.1 | 1.7 | V | IF=1.6mA, TA=25℃ | 7 | |
| Input Forward Voltage Temperature Coefficient | ΔVF/ΔTA | -1.9 | mV/℃ | IF=1.6mA | 7 | ||
| Input Reverse Voltage | BVR | 5 | V | IR = 10μA TA=25℃ | 7 | ||
| Input Capacitance | CIN | 60 | pF | VF=0; f=1MHZ | 7 | ||
| Current Transfer Ratio (6N139) | CTR | 400 | 2000 | 5000 | % | IF=0.5mA; Vo=0.4V; Vcc=4.5V | 7 |
| Logic Low Output Voltage (6N139) | VOL | 0.1 | 0.4 | V | IF=0.5mA; Vcc=4.5V; Io=2mA | 7 | |
| Logic High Output Current (6N139) | IOH | 0.1 | 100 | μA | IF=0mA, Vo=Vcc=18V; TA=25℃ | 7 | |
| Logic Low Supply Current | IccL | 0.4 | 1.5 | mA | IF=1.6mA, Vo=open (Vcc=18V) | 7 | |
| Logic High Supply Current | IccH | 0.01 | 10 | mA | IF=0mA, Vo=open ; TA=25℃ (Vcc=18V) | 7 | |
| Propagation Delay Time to Low Output Level (6N139) | tPHL | 5 | 25 | μs | IF=0.5mA; RL=4.7KΩ | 8 | |
| Propagation Delay Time to High Output Level (6N139) | tPLH | 18 | 60 | μs | IF=0.5mA; RL=4.7KΩ | 8 | |
| Logic High Common Mode Transient Immunity | /CMH/ | 1 | 10 | KV/μs | IF=0mA; /VCM/=10Vp-p RL=2.2KΩ | 8 | |
| Logic Low Common Mode Transient Immunity | /CML/ | 1 | 10 | KV/μs | IF=1.6mA; /VCM/=10Vp-p RL=2.2KΩ | 8 | |
| Input-Output Insulation Leakage Current | II-O | 1 | μA | 45% RH, t = 5s, VI-O = 3kV DC, TA =25oC | 9 | ||
| Withstand Insulation Test Voltage | VISO | 5000 | VRMS | RH ≤ 50%, t = 1min, TA = 25oC | 9 | ||
| Input-Output Resistance | RI-O | 1012 | Ω | VI-O = 500V DC | 9 |
CAD (KiCad official)
- Symbol:
6N139S-TA1-L - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files:
6n139s-ta1-l-etched.step/6n139s-ta1-l-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);6n139s-ta1-l.step/6n139s-ta1-l.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Lite On datasheet (16 pp, sha256
d76ac4d6784575d1, retrieved 2026-10-19, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-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).