HCPL4502V

Transistor, Photovoltaic Output Optoisolators Overview

The HCPL4502V is a single-channel diode-transistor optocoupler manufactured by onsemi. It provides electrical isolation between input and output circuits using an insulating layer. The device features a transistor with base output configuration, offering high-speed performance compared to conventional phototransistor couplers. Key specifications include a minimum isolation voltage of 2500 Vrms, a maximum forward current of 25 mA per channel, and a typical forward voltage of 1.95 V. It operates within a temperature range of -40°C to 100°C and is housed in an 8-DIP package.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Diode-transistor architecture reduces base-collector capacitance for increased switching speed
• Integrated photodetector with separate bias connections for enhanced signal integrity
• High common-mode rejection capability suitable for noisy environments

Transistor, Photovoltaic Output Optoisolators Applications

• Industrial automation control systems
• Power supply feedback loops
• Signal isolation in communication interfaces

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the manufacturer origin carefully as this component has been produced by multiple vendors including Agilent, Fairchild, and onsemi. Confirm the specific suffix indicates lead-free compliance if required. Check for obsolete status notifications from current suppliers. Ensure the package type matches the 8-DIP specification. Validate datasheet revisions against the production batch date.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when high-speed digital isolation is required in a single-channel application. Consider the 2500 Vrms isolation rating for safety-critical circuits. Evaluate the thermal operating range up to 100°C for industrial environments. Compare propagation delay specifications against system timing requirements. Ensure the 8-DIP footprint fits the target PCB layout constraints.

Transistor, Photovoltaic Output Optoisolators Part Context

This device belongs to the HCPL-4502 family of high-speed optocouplers originally developed by Agilent Technologies. The family includes variants like HCPL-4503 and HCNW-4502. Production rights and manufacturing have transitioned through various semiconductor companies including Fairchild Semiconductor and onsemi. The technology utilizes a unique LED and photodetector arrangement distinct from standard phototransistor optocouplers.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

HCNW4502#300 is a documented widebody DIP variant with similar functionality but different packaging dimensions. HCPL-4502 is the base model number for the series. Verify pin compatibility and isolation voltage ratings before substitution. Check RoHS compliance status differences between original and replacement parts.