MB2M-E3/45 Bridge Rectifier Equivalent & Substitute Parts

Part Overview

The MB2M-E3/45 is a single-phase bridge rectifier manufactured by Vishay General Semiconductor - Diodes Division, rated for 200 V peak reverse voltage and 500 mA average rectified current. This component is classified as obsolete, making identification of equivalent and substitute parts essential for ongoing design support and procurement continuity. The through-hole MBM package configuration and standard rectification technology establish the baseline for compatible alternatives.

Key Parameters

Parameter	Value
Voltage - Peak Reverse (Max)	200 V
Current - Average Rectified (Io)	500 mA
Voltage - Forward (Vf) (Max) @ If	1 V @ 400 mA
Current - Reverse Leakage @ Vr	5 µA @ 200 V
Operating Temperature Range	-55°C ~ 150°C (TJ)
Mounting Type	Through Hole
Package / Case	4-DIP (0.200", 5.08mm)
Diode Type	Single Phase
Technology	Standard

Substitute Part Grouping Explanation

Substitute parts for the MB2M-E3/45 are identified based on electrical parameter equivalence and functional compatibility. The critical parameters determining substitutability are:

Voltage - Peak Reverse (Max): 200 V
Current - Average Rectified (Io): 500 mA
Voltage - Forward (Vf) (Max): 1 V
Current - Reverse Leakage @ Vr: 5 µA @ 200 V
Operating Temperature Range: -55°C ~ 150°C (TJ)
Diode Type: Single Phase
Technology: Standard

Two substitute parts meet these electrical criteria. The MB2S-E3/80 represents a manufacturer-recommended upgrade path, transitioning from through-hole to surface-mount technology while maintaining identical electrical specifications. The B2M-E3/45 provides a parametric equivalent with identical package and mounting configuration, differing only in forward voltage test current (500 mA vs. 400 mA) and base product designation.

Parameter Comparison

Parameter	MB2M-E3/45 (Main)	MB2S-E3/80 (MFR Recommended)	B2M-E3/45 (Parametric Equivalent)
Voltage - Peak Reverse (Max)	200 V	200 V	200 V
Current - Average Rectified (Io)	500 mA	500 mA	500 mA
Voltage - Forward (Vf) (Max) @ If	1 V @ 400 mA	1 V @ 400 mA	1 V @ 500 mA
Current - Reverse Leakage @ Vr	5 µA @ 200 V	5 µA @ 200 V	5 µA @ 200 V
Operating Temperature Range	-55°C ~ 150°C (TJ)	-55°C ~ 150°C (TJ)	-55°C ~ 150°C (TJ)
Mounting Type	Through Hole	Surface Mount	Through Hole
Package / Case	4-DIP (0.200", 5.08mm)	TO-269AA, 4-BESOP	4-DIP (0.200", 5.08mm)
Product Status	Obsolete	Active	Obsolete
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

The MB2S-E3/80 is the active product offering from Vishay General Semiconductor - Diodes Division with identical electrical specifications. This part is recommended for new designs and long-term procurement strategies due to its active product status and availability (20,487 pcs in stock). The transition from through-hole to surface-mount technology requires PCB layout modification but maintains full electrical compatibility.

The B2M-E3/45 provides an alternative through-hole solution with equivalent electrical performance. Both the main part (MB2M-E3/45) and this substitute are classified as obsolete, limiting their suitability for new production beyond existing inventory utilization.

All substitute parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment with the original component.

Frequently Asked Questions (FAQ)

Q: Can MB2S-E3/80 directly replace MB2M-E3/45 in existing through-hole designs?

A: Electrical substitution is valid; however, the MB2S-E3/80 uses surface-mount technology (TO-269AA package) while the MB2M-E3/45 is through-hole (4-DIP). PCB redesign is required to accommodate the different package footprint and mounting method.

Q: What is the difference between the forward voltage specifications of MB2M-E3/45 and B2M-E3/45?

A: Both parts specify a maximum forward voltage of 1 V. The test current differs: MB2M-E3/45 is tested at 400 mA, while B2M-E3/45 is tested at 500 mA. This represents a parametric variation within the same electrical class.

Q: Are all substitute parts RoHS and REACH compliant?

A: Yes. MB2S-E3/80 and B2M-E3/45 are both ROHS3 compliant and REACH unaffected, matching the compliance status of the original MB2M-E3/45.

Q: Which substitute part should be selected for new production?

A: The MB2S-E3/80 is the only active product among the available options and is the manufacturer-recommended substitute. It provides long-term availability and supply chain stability.

Q: Can B2M-E3/45 be used as a direct replacement in existing assemblies?

A: Yes. The B2M-E3/45 maintains identical through-hole package configuration (4-DIP), mounting type, and electrical specifications, enabling direct PCB substitution without layout modification.

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