MBRF40040 Equivalent & Substitute Parts Reference

Part Overview

The MBRF40040 (GeneSiC Semiconductor) is a Schottky diode module in the Diodes, Rectifiers category, featuring a diode array with a 1 Pair Common Cathode configuration, rated for 40 V DC reverse voltage and 200A average rectified current per diode. It uses chassis mount and comes in a TO-244AB package. The product is currently obsolete, necessitating identification of substitute parts for new designs or in the event of inventory shortages. Only equivalents matching the key electrical and mechanical parameters should be considered.

Substiute Parts

MBRF40040

GeneSiC SemiconductorIn Stock: 880MBRF40040 Datasheet

Current PartRFQ

400CNQ040

SMC Diode SolutionsIn Stock: 879400CNQ040 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts are grouped by strict adherence to the following key parameters: diode configuration (1 Pair Common Cathode), Schottky technology, maximum DC reverse voltage (40 V), average rectified current per diode (200A), similar forward voltage at rated current, fast recovery speed (≤500ns at >200mA), reverse leakage current, identical operating temperature range, chassis mount type, and comparable package/case specifications. Substitution is considered only within these explicit parameters.

Parameter Comparison

Engineering Selection Recommendations

Selection of substitute parts is guided by product status, compliance, and certifications. The MBRF40040 is classified as obsolete. The substitute part 400CNQ040 is listed as active and complies with ROHS3 and REACH standards and holds an identical ECCN classification. Both parts maintain the same MSL (1, unlimited). Reference only the parameters and certifications provided when determining substitution suitability.

Frequently Asked Questions (FAQ)

Q1: How are substitute Schottky diode modules selected when the main part becomes obsolete?
A1: Substitution is based strictly on matching diode configuration, Schottky technology, voltage and current ratings, recovery speed, reverse leakage, operating temperature, mounting type, and package/case specifications within the allowed parameters.

Q2: Can the 400CNQ040 be used as a direct substitute for the MBRF40040?
A2: The 400CNQ040 matches all specified key electrical and mechanical parameters. However, note the difference in package type (TO-244AB vs PRM4) as this may affect physical compatibility.

Q3: What should be considered regarding package and mounting during part substitution?
A3: Ensure the mounting type (chassis mount) is identical. Compare the detailed package/case specifications (TO-244AB for the MBRF40040, PRM4 for the 400CNQ040) to confirm suitability for mechanical integration.

Q4: Are compliance certifications for the substitute diode module provided?
A4: The 400CNQ040 is noted as ROHS3 compliant and REACH affected, with MSL 1 (unlimited). Certifications should match the requirements specified for the application environment based on the data provided.

Q5: Does reverse leakage current affect the ability to substitute?
A5: Reverse leakage current is a key parameter; the 400CNQ040 lists 20 mA @ 40 V versus the MBRF40040's 1 mA @ 40 V. Evaluate if this value meets the system requirement based only on provided specifications.