The 6N139 is a high-speed optocoupler with a photodiode and high-gain transistor output, designed for isolating logic-level signals in digital circuits. Featuring a CTR (current transfer ratio) as high as 600% and a typical switching speed of 1 MHz, the 6N139 is well-suited for interfacing microcontrollers, industrial logic circuits, and communication systems with electrical isolation up to 5000 Vrms. Its DIP-8 through-hole package allows easy integration into breadboards and PCBs.

Features of 6N139 Optocoupler:

1. High-speed photodiode-transistor optocoupler
2. High CTR (Current Transfer Ratio) of up to 600%
3. Input-output isolation voltage of up to 5000 Vrms
4. TTL-compatible logic output
5. Typical switching frequency: 1 MHz
6. Low input current drive (1.6 mA typical)
7. DIP-8 through-hole package for easy prototyping
8. Ideal for digital interfacing, PLCs, and signal isolation

Specifications of 6N139 Optocoupler:

• Model: 6N139
• Type: Optocoupler / Phototransistor
• Package: DIP-8
• Isolation Voltage: 5000 Vrms
• CTR Range: 200% to 600%
• Input LED Forward Current: 10 mA (typ.)
• Switching Speed: Up to 1 MHz
• Supply Voltage Range: 3V to 15V (logic side)
• Operating Temperature Range: -55°C to +100°C

Package Includes:

1 × 6N139 Optocoupler – DIP-8 Package