HCPL4502V

Transistor, Photovoltaic Output Optoisolators Overview

The HCPL4502V is a single-channel optoisolator manufactured by Fairchild Semiconductor, now part of onsemi. It features a transistor with base output configuration housed in an 8-pin DIP package. The device provides electrical insulation between input and output circuits with a maximum isolation voltage of 2500 Vrms. Key electrical parameters include a maximum DC forward current (If) of 50 mA and a collector-emitter saturation voltage (Vce(sat)) of approximately 1.3 V at specified currents. The component is designed for logic interface applications requiring galvanic isolation.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Provides high-voltage electrical isolation between input LED and output transistor circuits
• Integrates a phototransistor with a dedicated base terminal for enhanced switching speed control
• Utilizes a standard 8-pin dual in-line package for through-hole mounting

Transistor, Photovoltaic Output Optoisolators Applications

• Logic interface circuits requiring signal isolation
• Power supply feedback loops
• Industrial control systems

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the manufacturer status as Fairchild Semiconductor was acquired by onsemi. Confirm the specific suffix 'V' corresponds to the lead-free or specific tape-and-reel variant if applicable, though datasheets often list HCPL-4502 as the primary reference. Check for obsolete status notifications from the current manufacturer. Ensure the package type matches the required PCB footprint for 8-DIP configurations.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when a transistor output with a base pin is required for faster switching than standard phototransistors. Compare the 2500 Vrms isolation rating against system safety requirements. Evaluate the current transfer ratio and propagation delay specifications against the target data rate. Consider the PDIP-8 package constraints for thermal management and board space.

Transistor, Photovoltaic Output Optoisolators Part Context

This device belongs to the family of high-speed optocouplers designed for digital signal transmission across isolated barriers. Similar devices include the HCPL-4502 and HCNW-4502, which may offer different packaging options such as surface-mount widebody DIPs. These components are commonly used in environments where noise immunity and safety isolation are critical.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Public confirmed substitute part numbers include HCPL-4562 from Broadcom Limited. Verify pinout compatibility and electrical parameter equivalence before substitution. Check for availability as the original Fairchild version may be discontinued.