HCPL4503TM

Transistor, Photovoltaic Output Optoisolators Overview

The HCPL4503TM is a single-channel high-speed optocoupler manufactured by onsemi, housed in an 8-pin MDIP package. It features a phototransistor output with a base connection for enhanced speed performance. Key electrical parameters include a data rate of 1 Mb/s and an isolation voltage of 5000 Vrms. The device operates with a forward current of 16 mA and a forward voltage of 1.45 V typical. The collector output current is rated at 8 mA, with a power dissipation of 100 mW. Current transfer ratio is specified at 38%. Operating temperature ranges from 0°C to +70°C.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• High-speed operation enabled by separate photodiode bias and output-transistor collector connections
• Provides electrical insulation between input LED and integrated photodetector via insulating layer
• Single-channel configuration designed for CMOS compatibility

Transistor, Photovoltaic Output Optoisolators Applications

• Industrial communication interfaces requiring galvanic isolation
• Data acquisition systems needing high-speed signal transmission
• Power supply feedback loops for isolated control signals

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix and manufacturing status before procurement, as component availability may vary. Confirm that the 8-pin DIP package matches your PCB footprint requirements. Ensure the 5000 Vrms isolation rating meets your system safety standards. Check for RoHS compliance documentation if required by your manufacturing regulations. Validate that the 16 mA forward current capability aligns with your driver circuit design.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when high-speed digital isolation is required within a single-channel architecture. The separate base connection distinguishes it from standard phototransistor couplers by reducing capacitance for faster switching. Consider the 5000 Vrms isolation barrier for applications demanding robust noise immunity. Ensure the operating temperature range of 0°C to +70°C suits your environmental conditions. Verify that the 1 Mb/s data rate is sufficient for your specific communication protocol.

Transistor, Photovoltaic Output Optoisolators Part Context

This part belongs to the HCPL4503M series of single-channel high-speed optocouplers. It utilizes diode-transistor technology to achieve superior speed compared to conventional designs. The series is available in various packages including DIP and SO-8. The manufacturer offers lead-free options denoted by specific suffixes. This component type is widely used in industrial and commercial electronics for reliable signal isolation.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.