HCPL-817-50AE

Transistor, Photovoltaic Output Optoisolators Overview

The HCPL-817-50AE is a single-channel transistor output optocoupler manufactured by Broadcom Limited. It features an NPN phototransistor output and operates with a maximum forward current of 30 mA to 50 mA depending on specific testing conditions, with a typical forward voltage of 1.4 V. The device provides high isolation capability rated at 5000 Vrms. Electrical characteristics include a collector-emitter voltage of up to 70 V and a maximum collector current of 50 mA. The current transfer ratio ranges from 80% to 160%. Dynamic performance specifications indicate typical rise times of 4 µs and fall times of 3 µs.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Provides galvanic isolation between input and output circuits using infrared LED and NPN phototransistor technology.
• Offers high dielectric strength with a 5000 Vrms insulation voltage rating for safety-critical applications.
• Features fast switching speeds with typical rise and fall times in the microsecond range.
• Designed for through-hole or surface-mount integration within a compact four-pin DIP package.

Transistor, Photovoltaic Output Optoisolators Applications

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

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the exact suffix against the manufacturer's latest datasheet to confirm pinout configuration and electrical tolerances. Ensure the procurement source provides valid RoHS compliance documentation. Cross-reference the part number with official Broadcom catalogs to distinguish between legacy and current production versions. Confirm packaging details match project requirements before finalizing orders.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when high isolation voltage and moderate speed are required. Compare the current transfer ratio limits against circuit gain requirements. Evaluate the thermal dissipation capabilities relative to the operating environment. Consider the package style compatibility with existing PCB layouts during the design phase.

Transistor, Photovoltaic Output Optoisolators Part Context

This device belongs to the HCPL-817 series of transistor output optocouplers. The series is designed for general-purpose isolation tasks. Variants within the family differ primarily in current transfer ratio bins and packaging options. The HCPL-817-50AE represents a specific binning configuration for the standard DIP/SMD form factor.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Direct substitutes may include other HCPL-817 variants with matching CTR bins. Verify pin compatibility and isolation ratings before substitution. Consult the manufacturer's obsolescence notices for alternative recommendations if this specific suffix is discontinued.