HCPL-4503#300

Transistor, Photovoltaic Output Optoisolators Overview

The HCPL-4503#300 is a single-channel high-speed optocoupler manufactured by Broadcom Limited. It features a phototransistor output and provides 3750 Vrms isolation voltage between input and output circuits. The device supports a data rate of 1 MB/s with a typical current transfer ratio of 25%. It operates within a temperature range of -55°C to 70°C and accepts a maximum forward current of 25 mA. The component is housed in an 8-pin DIP package with a 0.300-inch width, designed for surface mount installation.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• High-speed operation capability up to 1 MB/s
• Integrated photodetector reduces base-collector capacitance for increased speed
• Provides electrical insulation via insulating layer between LED and photodetector
• CMOS compatible logic output configuration

Transistor, Photovoltaic Output Optoisolators Applications

• Industrial communication interfaces
• Power supply feedback loops
• Signal isolation in noisy environments

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify RoHS compliance status as sources indicate conflicting information regarding lead-free certification. Confirm the specific suffix #300 corresponds to the required 0.300-inch DIP package dimensions. Ensure the manufacturer designation matches Broadcom Limited or Avago Technologies depending on the production era. Check datasheet revisions for any changes in mechanical drawings or electrical limits before finalizing procurement orders.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when high-speed signal transmission is required alongside galvanic isolation. The 1 MB/s data rate suits applications needing faster response than standard phototransistor couplers. Consider the 3750 Vrms isolation rating for safety-critical designs. Verify that the 8-pin DIP footprint fits the target PCB layout constraints. Evaluate the operating temperature range against environmental conditions.

Transistor, Photovoltaic Output Optoisolators Part Context

This part belongs to the HCPL series of single-channel high-speed optocouplers from Broadcom. The series utilizes a diode-transistor architecture to achieve superior speed compared to conventional designs. Variants in the family include different package options such as SO-8 and Widebody packages. The HCPL-4503 specifically targets applications requiring fast digital signal isolation.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

HCNW4503-300E serves as a parameter-equivalent substitute within the same manufacturer portfolio.