MB154 Bridge Rectifier Single Phase 400V 15A Equivalent & Substitute Parts

Part Overview

The MB154 is a single-phase bridge rectifier manufactured by Diodes Incorporated, rated for 400V peak reverse voltage and 15A average rectified current. This component is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system maintenance and new design implementations. The MB154 features QC terminal mounting and operates across a temperature range of -55°C to 150°C.

Substiute Parts

MB154

Diodes IncorporatedIn Stock: 700MB154 Datasheet

Current PartRFQ

GBPC1504-E4/51

Vishay General Semiconductor - Diodes DivisionIn Stock: 1104GBPC1504-E4/51 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MB154 is determined by strict equivalence across the following critical parameters:

• Diode Type: Single Phase
• Technology: Standard
• Voltage - Peak Reverse (Max): 400 V
• Current - Average Rectified (Io): 15 A
• Voltage - Forward (Vf) (Max) @ If: 1.1 V @ 7.5 A
• Operating Temperature Range: -55°C ~ 150°C (TJ)
• Mounting Type: QC Terminal
• RoHS Status: ROHS3 Compliant

The GBPC1504-E4/51 meets all specified electrical and mechanical requirements for direct substitution. Both components share identical voltage and current ratings, forward voltage characteristics, and operating temperature specifications. The GBPC1504-E4/51 maintains QC terminal mounting compatibility and ROHS3 compliance. The primary distinction is product status: the MB154 is obsolete while the GBPC1504-E4/51 is active, with improved reverse leakage characteristics (5 µA vs. 10 µA @ 400 V).

Parameter Comparison

Engineering Selection Recommendations

The GBPC1504-E4/51 is the manufacturer-recommended substitute for the obsolete MB154. Both components maintain identical electrical specifications for voltage, current, and temperature operation. The GBPC1504-E4/51 is currently in active production status with confirmed inventory availability, addressing the obsolescence of the MB154. Both parts maintain ROHS3 compliance and REACH compliance status, satisfying regulatory requirements for new designs and system replacements. The improved reverse leakage specification of the GBPC1504-E4/51 (5 µA vs. 10 µA) provides enhanced performance characteristics while maintaining full electrical compatibility.

Frequently Asked Questions (FAQ)

Q: Can the GBPC1504-E4/51 directly replace the MB154 in existing applications?

A: Yes. Both components share identical voltage ratings (400V peak reverse), current ratings (15A average rectified), forward voltage characteristics (1.1V @ 7.5A), and operating temperature ranges (-55°C to 150°C). QC terminal mounting is identical on both parts.

Q: What is the difference between the MB and GBPC package designations?

A: Both designations refer to 4-Square bridge rectifier packages with QC terminal mounting. The MB designation is specific to Diodes Incorporated, while GBPC is the Vishay designation. The physical form factor and terminal configuration are compatible for direct substitution.

Q: Why is the reverse leakage specification different between the two parts?

A: The MB154 specifies maximum reverse leakage of 10 µA @ 400V, while the GBPC1504-E4/51 specifies 5 µA @ 400V. This represents an improved characteristic in the substitute part and does not affect compatibility. Lower reverse leakage is beneficial for circuit performance.

Q: Are both parts RoHS compliant?

A: Yes. Both the MB154 and GBPC1504-E4/51 are ROHS3 compliant and REACH affected, meeting current environmental and regulatory standards.

Q: What is the current availability status of these parts?

A: The MB154 is obsolete with 643 pieces in stock. The GBPC1504-E4/51 is active in production with 1081 pieces in stock, providing reliable long-term availability for new designs and replacements.