B550CQ-13-F

Overview

The B550CQ-13-F is a single silicon Schottky rectifier manufactured by Diodes Incorporated. It features a maximum repetitive reverse voltage of 50 V and an average forward current rating of 5 A. The device exhibits a typical forward voltage of 550 mV at rated current and a maximum reverse leakage current of 500 uA. It supports a forward surge current of 100 A and operates within a junction temperature range of -55 °C to +150 °C. The component is housed in an SMC (DO-214AB) surface-mount package and holds AEC-Q101 automotive qualification.

Feature Summary

• Automotive-grade reliability certified under the AEC-Q101 standard for robust performance in demanding environments.
• Low forward voltage drop characteristic designed to minimize conduction losses and enhance overall system efficiency.
• High thermal stability enabling reliable operation across an extended junction temperature range up to 150 °C.

Applications

• DC-DC converters in automotive electronic systems
• Auxiliary power supplies for vehicle electronics
• General-purpose rectification in automotive-grade circuits

Procurement Notes

Verify that the specific part number suffix matches the required automotive qualification status, as non-Q variants may lack AEC-Q101 certification. Confirm the package type corresponds to SMC (DO-214AB) requirements for your PCB layout. Ensure the manufacturer is explicitly identified as Diodes Incorporated to avoid counterfeit components. Cross-reference the datasheet revision date to ensure compatibility with current design specifications.

Selection Notes

Select this component when a 50 V reverse voltage rating and 5 A continuous current capacity are required for automotive applications. The AEC-Q101 qualification makes it suitable for vehicles requiring high reliability standards. Consider the SMC package size for space-constrained designs. Evaluate the 550 mV forward voltage against system efficiency targets compared to other Schottky options in the same voltage class.

Part Context

This device belongs to the B520C/CQ through B560C/CQ series of Schottky rectifiers from Diodes Incorporated. The 'Q' suffix typically denotes automotive-grade qualification, distinguishing it from industrial versions like the B550C-13-F. This series provides standardized solutions for low-voltage, high-current rectification needs in modern power management architectures.

Replacement Considerations

The B550C-13-F is a related industrial-grade variant with identical electrical ratings but lacks automotive qualification. Verify if the application strictly requires AEC-Q101 certification before substituting. Other series members such as B560CQ-13-F offer higher voltage ratings but must be evaluated for current handling capabilities.