BROADCOM 6N139-000E 1-Channel Optocoupler, 3.75kV Isolation, 8-Pin DIP

The BROADCOM 6N139-000E is a high-performance, low-input-current optocoupler engineered for reliable signal isolation. It utilises a high-efficiency LED coupled with an integrated high-gain photo-detector to deliver an exceptional current transfer ratio (CTR) of 400% minimum, ensuring robust signal integrity between input and output circuits.

A key design feature is the provision of separate pins for the photodiode and the output stage. This architecture enables TTL-compatible saturation voltages and facilitates high-speed operation, making it an ideal interface component for digital systems. The inclusion of a base access terminal offers valuable flexibility, allowing for precise gain-bandwidth adjustment to optimise performance for specific application requirements.

Key Features & Performance

• High Gain & Efficiency: With a minimum CTR of 400%, the device can reliably drive a single TTL load using only a 2.2kΩ pull-up resistor, minimising component count and power consumption.
• TTL Compatibility: Delivers a typical low-level output voltage (VOL) of 0.1V, ensuring direct compatibility with TTL logic families without requiring additional buffer stages.
• Robust Output: Capable of a high output current of 60mA, providing strong drive capability for downstream components.
• High Isolation Voltage: Offers a formidable 3.75kV isolation barrier, providing excellent protection against voltage transients and ensuring safety in mains-connected or high-voltage side applications.
• Extended Temperature Range: Performance is guaranteed across a broad operating temperature range of 0°C to 70°C, ensuring reliability in diverse environmental conditions.

This optocoupler is a fundamental component for designers requiring precise, isolated signal transfer in a compact, through-hole DIP package.