HCPL2503SV

Transistor, Photovoltaic Output Optoisolators Overview

The HCPL2503SV is a single-channel high-speed transistor output optocoupler manufactured by onsemi. It features an AlGaAs LED coupled to a phototransistor with a base terminal for enhanced switching performance. The device offers a data rate of 1 Mb/s and provides electrical isolation with an insulation voltage of 2500 Vrms. Key electrical parameters include a forward current of 25 mA, a collector-emitter saturation voltage typical of standard logic outputs, and a propagation delay characteristic of high-speed applications. It operates within a temperature range of -40°C to +85°C and is housed in an 8-SMD surface-mount package.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Integrates an AlGaAs infrared LED with a phototransistor featuring a base terminal for improved noise immunity and faster switching speeds.
• Provides robust galvanic isolation between input and output circuits to protect sensitive control electronics from high-voltage transients.
• Designed for high-speed digital signal transmission with a data rate capability of 1 Mb/s.

Transistor, Photovoltaic Output Optoisolators Applications

• High-speed data communication interfaces requiring isolated signal transmission
• Industrial automation systems for noise-immune signal coupling
• Power supply feedback loops in switching mode power supplies

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix SV indicates the surface-mount variant and confirm the manufacturer status, as this component may be obsolete or subject to change. Ensure compatibility with existing PCB footprints and reflow soldering profiles. Cross-reference with official onsemi documentation for any recent product discontinuation notices or recommended replacement parts before finalizing procurement plans.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when a single-channel isolated interface with 1 Mb/s speed is required in a compact surface-mount form factor. Consider the 2500 Vrms isolation rating for safety compliance in low-to-medium voltage applications. Evaluate the base terminal feature if superior noise rejection or controlled turn-off times are necessary compared to standard phototransistor outputs.

Transistor, Photovoltaic Output Optoisolators Part Context

This part belongs to the family of high-speed transistor optocouplers, often serving as a successor or alternative to legacy devices like the 6N135 or HCPL-2503. It is designed for applications demanding faster response times than standard optocouplers while maintaining electrical isolation. The SMD packaging facilitates automated assembly and space-constrained designs.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Consult official distributor databases or manufacturer obsolescence notices for current alternatives.