MT5004A-BP Bridge Rectifier Three Phase Equivalent & Substitute Parts

Part Overview

The MT5004A-BP is a three-phase bridge rectifier manufactured by Micro Commercial Co, designed for chassis mount applications with a peak reverse voltage rating of 400 V and average rectified current of 50 A. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing system maintenance and new design implementations. The obsolete status necessitates evaluation of active alternative components that maintain functional compatibility within the specified electrical and mechanical parameters.

Substiute Parts

MT5004A-BP

Micro Commercial CoIn Stock: 987MT5004A-BP Datasheet

Current PartRFQ

MT5016A-BP

Micro Commercial CoIn Stock: 1582MT5016A-BP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MT5004A-BP is determined by the following critical parameters:

Mandatory Compatibility Criteria:

• Diode Type: Three Phase (required for three-phase rectification circuits)
• Technology: Standard (defines rectification characteristics)
• Current - Average Rectified (Io): 50 A (must match or exceed application requirements)
• Package / Case: MT-35A form factor (ensures mechanical fit in chassis mount applications)
• Mounting Type: Chassis Mount or QC Terminal (both acceptable for MT-35A package)

Voltage Rating Consideration: The MT5004A-BP operates at 400 V peak reverse voltage. Substitute parts may operate at higher voltage ratings, as higher voltage-rated components function within lower voltage applications. The substitute MT5016A-BP operates at 1.6 kV, which is compatible with 400 V circuit requirements.

Temperature Range: The MT5004A-BP operates from -55°C to 150°C. Substitute parts with equal or wider operating temperature ranges maintain thermal compatibility.

Parameter Comparison

Engineering Selection Recommendations

MT5016A-BP as Primary Substitute:

The MT5016A-BP is the manufacturer-recommended substitute for the obsolete MT5004A-BP. Selection of this substitute is based on the following engineering factors:

1. Product Status: MT5016A-BP is in active production, ensuring long-term availability and supply chain continuity compared to the obsolete MT5004A-BP.

2. Electrical Compatibility: Both components maintain identical three-phase diode type, standard technology, and 50 A average rectified current rating. The MT5016A-BP's 1.6 kV peak reverse voltage rating exceeds the MT5004A-BP's 400 V requirement, providing voltage margin in applications operating at or below 400 V.

3. Regulatory Compliance: MT5016A-BP is ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements. The MT5004A-BP's compliance status is not specified.

4. Thermal Performance: Both components operate to 150°C maximum junction temperature. The MT5016A-BP's minimum operating temperature of -40°C is 15°C higher than the MT5004A-BP's -55°C minimum. Applications requiring operation below -40°C require verification of system thermal requirements.

5. Mechanical Considerations: Both components use the MT-35A package form factor. The MT5004A-BP uses 5-square pin configuration with chassis mount terminals, while MT5016A-BP uses 4-square pin configuration with QC (quick connect) terminals. Physical mounting interface verification is required during substitution.

6. Inventory Status: MT5016A-BP has 1497 pieces in stock compared to 946 pieces for the obsolete MT5004A-BP, supporting immediate procurement.

Frequently Asked Questions (FAQ)

Q: Can MT5016A-BP directly replace MT5004A-BP in existing designs?

A: Electrical substitution is valid based on identical diode type, technology, and current rating. However, mechanical substitution requires verification of mounting interface compatibility. The MT5004A-BP uses chassis mount terminals (5-square configuration) while MT5016A-BP uses QC terminals (4-square configuration). Physical mounting interface must be evaluated for each application.

Q: What is the significance of the higher 1.6 kV voltage rating on MT5016A-BP?

A: The MT5016A-BP's 1.6 kV peak reverse voltage rating is higher than the MT5004A-BP's 400 V rating. In applications operating at 400 V or below, the higher-rated component functions within its specified operating range and provides additional voltage margin. No derating or performance degradation occurs when a higher-voltage-rated component operates at lower voltages within its current and temperature specifications.

Q: Are there temperature range differences between these components?

A: Yes. The MT5004A-BP operates from -55°C to 150°C junction temperature, while MT5016A-BP operates from -40°C to 150°C. Applications requiring operation below -40°C must retain the MT5004A-BP or identify alternative components with extended low-temperature ratings. Both components operate identically at the upper 150°C limit.

Q: What does the MT-35A package designation indicate?

A: MT-35A is the supplier device package designation common to both components, indicating a standardized form factor for three-phase bridge rectifiers. This designation ensures mechanical compatibility in terms of overall dimensions and mounting footprint. However, internal pin configuration differs between the 5-square (MT5004A-BP) and 4-square (MT5016A-BP) variants, requiring terminal connection verification.

Q: Why is forward voltage measured at different current levels?

A: The MT5004A-BP specifies forward voltage at 25 A (1.2 V @ 25 A) while MT5016A-BP specifies it at 12 A (1.2 V @ 12 A). Both components maintain identical 1.2 V maximum forward voltage at their respective measurement points. Forward voltage characteristics vary with current; measurement at different currents reflects component design differences but does not affect substitution validity at the 50 A average rectified current rating.

Q: What is the difference between chassis mount and QC terminal mounting?

A: Chassis mount terminals are fixed mechanical connections suitable for permanent installation in chassis-based systems. QC (quick connect) terminals provide removable connections for applications requiring component replacement or maintenance without permanent soldering. Both mounting types are compatible with the MT-35A package form factor but require different connection hardware and installation procedures.

Q: Is the MT5016A-BP the only available substitute?

A: Based on the provided input parameters, MT5016A-BP is the manufacturer-recommended substitute listed for MT5004A-BP. This document addresses only the substitute parts explicitly provided in the input data.