HCPL-6751

The HCPL-6751 is a hermetically sealed optocoupler manufactured on a MIL-PRF-38534 certified line, suitable for military and aerospace applications. Each channel integrates a GaAsP light-emitting diode coupled to an integrated high-gain photon detector with an open-collector output stage. This configuration provides lower saturation voltage and faster signaling speeds compared to conventional photo-Darlington devices. The device operates reliably across the full military temperature range of -55°C to +125°C and features high radiation immunity due to shallow junction IC processing.

Designed for low-power logic interfaces, it requires only 0.5 mA input current while maintaining a minimum 300% current transfer ratio and a typical 1500% ratio. The unit withstands 1500 Vdc isolation testing and functions with supply voltages as low as 2.0 V. Compatible with high-voltage CMOS systems, it is packaged in an 8-pin DIP configuration for through-hole mounting. Recommended design practice includes adding a 0.1 µF bypass capacitor between VCC and GND.

Ideal for isolated line receivers, voltage level shifting, microprocessor interfaces, and harsh industrial environments, the HCPL-6751 ensures robust signal transmission in critical systems where reliability and radiation tolerance are paramount.