HCPL-553K

Transistor, Photovoltaic Output Optoisolators Overview

The HCPL-553K is a high-speed optocoupler manufactured by Broadcom Limited, featuring two independent channels within a single package. It utilizes phototransistor outputs and supports a data rate of 400 kb/s with a bandwidth of 9 MHz. The device offers an isolation voltage of 1500 Vdc and operates across a wide temperature range from -55°C to +125°C. Key electrical parameters include a maximum forward current of 20 mA, a typical forward voltage of 1.55 V, and a collector output current of 8 mA. Power dissipation is rated at 200 mW, and the current transfer ratio is specified at 20%.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Hermetically sealed construction designed for reliability in demanding environments
• High-speed signal transmission capability suitable for digital communication interfaces
• Dual-channel configuration providing independent isolation paths
• Wide operating temperature range supporting extreme thermal conditions

Transistor, Photovoltaic Output Optoisolators Applications

• Industrial control systems requiring galvanic isolation
• Medical equipment needing high-reliability signal coupling
• Aerospace and defense electronic subsystems
• Power supply feedback loops for noise immunity

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix (e.g., #300) against official datasheets to confirm package type and compliance status. Ensure the procurement source provides valid traceability documentation. Confirm RoHS status as some variants may contain lead. Validate that the supplier is an authorized distributor to guarantee component authenticity and storage integrity.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when dual-channel isolation with high-speed performance is required. Consider the CDIP-8 package constraints for through-hole mounting. Evaluate the 400 kb/s data rate against system timing requirements. Ensure the 1500 Vdc isolation rating meets safety standards for the application voltage. Check thermal management needs given the 200 mW power dissipation limit.

Transistor, Photovoltaic Output Optoisolators Part Context

This part belongs to the HCPL series of high-speed optocouplers from Broadcom Limited. The series is known for robust performance in isolated digital communication applications. The HCPL-553K specifically targets markets requiring hermetic sealing and extended temperature ranges, distinguishing it from standard commercial-grade optocouplers.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Check for direct pin-compatible substitutes within the same family, such as HCPL-5531, ensuring identical channel count and isolation ratings. Verify that any replacement maintains the same hermetic seal requirement and temperature specifications.