HCPL-4503#520

Transistor, Photovoltaic Output Optoisolators Overview

The HCPL-4503#520 is a high-speed optocoupler manufactured by Broadcom Limited, featuring a single channel with a phototransistor output. It supports a data rate of 1 Mb/s and operates within a temperature range of 0°C to +70°C. The device provides an insulation voltage of 3750 Vrms and offers a common-mode transient rejection capability of 15 kV/µs at VCM = 1,500 V. Key electrical parameters include a forward current of 16 mA, a forward voltage of 1.5 V, and a maximum collector current of 8 mA. The component is housed in an 8-pin PDIP Gull Wing package.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• High-speed signal transmission capability supporting up to 1 Mb/s data rates for efficient digital communication.
• Robust electrical isolation utilizing a diode-transistor photo-coupling structure to minimize base-collector capacitance.
• Superior noise immunity characterized by a minimum common-mode transient rejection of 15 kV/µs.
• Compatible with standard TTL logic levels, facilitating direct interface with microcontrollers and logic circuits.

Transistor, Photovoltaic Output Optoisolators Applications

• Isolation of power transistor gates in motor drive circuits
• Feedback loop isolation in switching power supplies
• Video signal isolation for display systems
• High-voltage insulation interfaces in industrial control equipment

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix #520 against official datasheets to confirm packaging and insulation ratings. Confirm RoHS compliance status as supplier listings may vary. Check for end-of-life or obsolescence notices from Broadcom. Ensure the procurement source provides valid traceability documentation for quality assurance purposes.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when high-speed isolation is required alongside robust noise immunity. The 1 Mb/s speed suits applications where traditional optocouplers are too slow. Consider the 8-pin DIP package for through-hole mounting requirements. Evaluate the 3750 Vrms insulation rating against system safety standards.

Transistor, Photovoltaic Output Optoisolators Part Context

This part belongs to the HCPL-4503 series of high-speed optocouplers produced by Broadcom Limited. The series utilizes a unique diode-transistor architecture to achieve speeds significantly faster than conventional phototransistor couplers. Variants in the series differ primarily in packaging styles and specific insulation voltage certifications.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

HCPL-4503#060: Offers similar performance in a standard DIP-8 package with 3750 Vrms insulation. HCPL-4503#300: Provides surface-mount SOP-8 packaging with comparable electrical characteristics. HCPL-4503#500: Features a lower insulation voltage of 2500 Vrms in a DIP-8 package.