B520CQ-13-F

Overview

The B520CQ-13-F is a single silicon Schottky barrier rectifier manufactured by Diodes Incorporated. It features an SMC (DO-214AB) surface-mount package and holds AEC-Q101 automotive qualification. Key electrical parameters include a maximum repetitive reverse voltage of 20 V, an average forward current rating of 5 A, and a maximum forward voltage of 700 mV at rated current. The device supports a forward surge current of 100 A and exhibits a maximum reverse leakage current of 500 uA. It operates within a temperature range from -55 C to +150 C.

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 improve overall system efficiency.
• Fast switching capability inherent to the Schottky barrier technology, reducing recovery time and associated heat generation.

Applications

• DC-to-DC converter circuits requiring high efficiency and low loss rectification.
• Free-wheeling diode applications in inductive load switching scenarios.
• Power supply input rectification stages in automotive electronic control units.

Procurement Notes

Verify the specific suffix 'CQ' against official manufacturer documentation to confirm it denotes the correct automotive grade and packaging configuration. Ensure the ordering part number matches the required reel or cut tape format. Cross-reference the AEC-Q101 certification status directly with the datasheet to validate suitability for automotive compliance requirements before finalizing procurement.

Selection Notes

Select this component when a 20 V reverse voltage rating and 5 A continuous current capacity are required in an SMC package. The AEC-Q101 qualification makes it suitable for automotive applications where higher thermal stability and reliability standards are mandatory compared to general industrial grades. Consider the 700 mV forward voltage specification for thermal management calculations in high-current designs.

Part Context

This component belongs to the B520C/CQ series of surface mount Schottky rectifiers produced by Diodes Incorporated. The series provides various voltage ratings within the same physical footprint, allowing for design flexibility. The 'CQ' designation specifically identifies the automotive-qualified variant, distinguishing it from standard commercial versions while maintaining identical pinout and mechanical dimensions for easy substitution in compatible layouts.

Replacement Considerations

Compatible substitutes include other AEC-Q101 qualified Schottky rectifiers in the SMC package with equal or higher voltage and current ratings. Verify that replacement parts maintain the same forward voltage characteristics and reverse leakage limits to ensure circuit performance consistency without redesigning the thermal or electrical constraints.