CPC7695ZCTR

Telecom Overview

The CPC7695ZCTR is a single-channel solid-state relay manufactured by Littelfuse, designed for surface-mount applications. It integrates an infrared LED input with a gallium arsenide photodiode array and a MOSFET output stage within a compact SOT-323 package. The device provides electrical isolation between the control circuit and the load, rated at 400V peak off-state voltage. Key electrical parameters include a maximum on-state resistance of 1.8 ohms and a continuous load current capacity of 150mA. The component operates over a temperature range of -40°C to +85°C and features a low input forward voltage typical of 1.2V, ensuring compatibility with standard logic-level drive signals.

Telecom Feature Summary

• Integrates infrared LED driver with high-efficiency GaAs photodiode array for reliable optical coupling
• Utilizes advanced MOSFET output technology to achieve low on-state resistance and minimal power loss
• Provides robust galvanic isolation between input control circuits and output load connections

Telecom Applications

• Portable battery-powered equipment requiring space-efficient switching solutions
• Medical instrumentation needing high isolation and low leakage currents
• Industrial control systems utilizing surface-mount assembly processes

Telecom Procurement Notes

Verify the specific suffix ZCTR corresponds to the required tape-and-reel packaging configuration before ordering. Confirm that the 150mA continuous current rating aligns with the intended load requirements. Ensure the 400V peak off-state voltage exceeds the maximum transient voltages present in the application circuit to prevent breakdown.

Telecom Selection Notes

Select this component when a single-channel SPST-NO configuration is required in a small footprint. Consider the 1.8 ohm on-state resistance for voltage drop calculations under full load. Evaluate the thermal performance within the -40°C to +85°C operating range to ensure reliability in the target environment.

Telecom Part Context

This part belongs to the CPC7695 series of single-channel solid-state relays from Littelfuse. The series is characterized by its use of CMOS-compatible input drivers and MOSFET outputs, offering superior performance compared to traditional mechanical relays in terms of switching speed and lifespan.

Telecom Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify pinout compatibility and electrical ratings if considering alternative manufacturers' single-channel SSRs.