VISHAY SFH6345 High-Speed Optocoupler, DIP, 1 Channel

The VISHAY SFH6345 is a high-performance analogue optocoupler designed for reliable signal isolation in demanding industrial and consumer applications. This component integrates a GaAlAs infrared emitting diode with a high-speed photo detector, comprising a photo diode and a high-speed transistor. The incorporation of an additional Faraday shield enhances input-output dV/dt immunity, allowing for stable operation in environments with high electrical noise.

With a data rate of 1Mbaud and the ability to transmit signals up to frequencies of 2MHz, this optocoupler is well-suited for industrial communication bus isolation, isolated drive circuits, and IPM (intelligent power module) drivers. The open-collector output and TTL compatibility ensure seamless integration with digital logic circuits, while the absence of a base connection simplifies design. The device offers good CTR linearity relative to forward current and low coupling capacitance, contributing to consistent performance across varying conditions.

Key Features:

• High noise immunity: 15kV/μs
• 1Mbaud data rate, supports up to 2MHz signals
• GaAlAs infrared emitting diode with integrated photo detector
• Faraday shield for enhanced dV/dt immunity
• Open-collector output, TTL compatible
• No base connection required
• Good CTR linearity relative to forward current
• Field effect stable
• Low coupling capacitance
• 1 channel, DIP package with 8 pins

Specifications:

• Channels: 1
• Case Style: DIP
• Pins: 8
• Forward Current (If Max): 25mA
• Isolation Voltage: 5.3kV
• CTR Min: 19%
• Collector Emitter Voltage (V(br)ceo): 25V

This optocoupler is an ideal solution for isolating signals between electrically separated circuits, ensuring safe and reliable data transmission in various electronic systems.