VISHAY 6N139 High Speed Optocoupler, 100kBd, DIP-8, 5.3kV

The VISHAY 6N139 is a high-speed, single-channel optocoupler designed for efficient and reliable signal isolation in digital circuits. It achieves a data rate of 100 kBaud with a remarkably low input current requirement, making it exceptionally suitable for low-power logic systems. Its innovative design couples an LED with an integrated, high-gain photodiode Darlington detector, delivering outstanding performance metrics including a high common-mode transient immunity and a very high current transfer ratio (CTR).

A key feature is the provision of separate pins for the photodiode and the output transistor stage. This architecture enables the attainment of TTL-compatible saturation voltages without sacrificing high-speed operation. Furthermore, direct access to the base terminal of the output transistor allows engineers to fine-tune the gain-bandwidth product, offering valuable flexibility in circuit design to optimise for speed or sensitivity.

The component provides robust electrical isolation, rated at 5300 Vrms, ensuring safe and reliable operation in environments with significant potential differences. It is housed in a standard 8-pin DIP (Dual In-line Package), facilitating easy prototyping and integration onto printed circuit boards (PCBs). With a maximum forward current of 25 mA and a collector-emitter voltage of 18V, it is built to handle typical interface requirements.

Ideal Applications

• Communications & Networking: Isolate signal lines in modems, interfaces, and network equipment.
• Sensing & Instrumentation: Provide noise-free signal isolation in measurement devices, data acquisition systems, and sensor interfaces.
• Consumer Electronics: Implement safe and reliable isolation in power supplies, control circuits, and logic interfaces within various electronic goods.
• General Logic Interfacing: Perfect for creating isolated links between CMOS, low-power TTL, and µC (