Equivalent & Substitute Parts for W01M Bridge Rectifier

Part Overview

The W01M is a single-phase bridge rectifier manufactured by GeneSiC Semiconductor, rated for 100 V peak reverse voltage and 1.5 A average rectified current. This component is classified as obsolete, necessitating identification of equivalent substitute parts for ongoing design support and procurement continuity. The W01M features a 4-circular through-hole package (WOM) and operates across a temperature range of -65°C to 125°C.

Substiute Parts

W01M

GeneSiC SemiconductorIn Stock: 3732W01M Datasheet

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2W01G-E4/51

Vishay General Semiconductor - Diodes DivisionIn Stock: 49212W01G-E4/51 Datasheet

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W01G-E4/51

Vishay General Semiconductor - Diodes DivisionIn Stock: 4744W01G-E4/51 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the W01M bridge rectifier are identified based on the following critical parameters that determine functional equivalence:

Primary Matching Criteria:

• Diode Type: Single Phase
• Technology: Standard
• Voltage - Peak Reverse (Max): 100 V (minimum requirement)
• Mounting Type: Through Hole
• Package Configuration: 4-Circular format

Secondary Compatibility Factors:

• Current - Average Rectified (Io): Equal to or greater than 1.5 A
• Voltage - Forward (Vf): Within acceptable operating margins
• Current - Reverse Leakage: Lower values indicate improved performance
• Operating Temperature Range: Must accommodate application requirements
• Moisture Sensitivity Level: MSL 1 classification ensures compatibility

The W01M has two identified substitute parts from Vishay General Semiconductor - Diodes Division, both utilizing the WOG package variant while maintaining electrical equivalence across the 100 V / 1.5 A specification envelope.

Parameter Comparison

Engineering Selection Recommendations

W01G-E4/51 (Vishay General Semiconductor - Diodes Division)

This substitute provides direct electrical equivalence to the W01M at the 1.5 A current rating. The W01G-E4/51 maintains identical peak reverse voltage (100 V) and forward voltage characteristics (1 V @ 1 A). The component is currently in active production status, ensuring long-term availability. The extended operating temperature range (-55°C ~ 150°C) accommodates broader application requirements compared to the W01M. Reverse leakage current is reduced to 5 µA @ 100 V, indicating improved performance. ROHS3 compliance and REACH unaffected status satisfy modern regulatory requirements. The WOG package variant is mechanically compatible with through-hole mounting applications.

2W01G-E4/51 (Vishay General Semiconductor - Diodes Division)

This substitute provides enhanced current capacity at 2 A average rectified current, exceeding the W01M specification of 1.5 A. The 100 V peak reverse voltage rating remains equivalent. Forward voltage increases to 1.1 V @ 2 A due to the higher current rating. This component is suitable for applications requiring current margin above the original 1.5 A specification. Active production status and ROHS3 compliance ensure regulatory alignment. The extended temperature range (-55°C ~ 150°C) and reduced reverse leakage (5 µA @ 100 V) provide performance advantages. Selection of this part is appropriate when circuit design permits the higher current capacity.

Frequently Asked Questions (FAQ)

Q: Can W01G-E4/51 directly replace W01M in existing designs?

A: Yes. The W01G-E4/51 maintains electrical equivalence across all critical parameters: 100 V peak reverse voltage, 1.5 A average rectified current, and 1 V forward voltage @ 1 A. Through-hole mounting compatibility is confirmed. The WOG package variant is mechanically compatible with WOM footprints.

Q: What is the difference between W01G-E4/51 and 2W01G-E4/51?

A: The primary difference is current rating. W01G-E4/51 is rated for 1.5 A average rectified current, matching the W01M specification. The 2W01G-E4/51 is rated for 2 A, providing additional current capacity. Both maintain the 100 V peak reverse voltage rating. Forward voltage increases to 1.1 V @ 2 A for the higher-current variant.

Q: Are package dimensions identical between WOM and WOG variants?

A: Both utilize 4-circular through-hole package configurations. The WOM and WOG designations indicate manufacturer-specific package variants. Physical compatibility for through-hole mounting applications is maintained.

Q: What compliance certifications apply to substitute parts?

A: Both Vishay substitutes (W01G-E4/51 and 2W01G-E4/51) are ROHS3 compliant and REACH unaffected. These certifications satisfy current regulatory requirements for electronic component procurement.

Q: Why is reverse leakage current lower in Vishay substitutes?

A: The W01G-E4/51 and 2W01G-E4/51 specify 5 µA @ 100 V reverse leakage compared to 10 µA @ 100 V for the W01M. This reflects manufacturing process improvements in the Vishay components and indicates enhanced performance characteristics.

Q: Can 2W01G-E4/51 be used in applications designed for 1.5 A operation?

A: Yes. The 2W01G-E4/51 is rated for 2 A average rectified current, which exceeds the 1.5 A requirement. The component operates within specification at lower current levels. Forward voltage characteristics at 1.5 A operation remain within acceptable margins.

Q: What is the operating temperature advantage of substitute parts?

A: The W01M operates from -65°C to 125°C. Both Vishay substitutes extend the upper temperature limit to 150°C (-55°C ~ 150°C), providing 25°C additional margin for high-temperature applications. The lower temperature limit increases by 10°C, which is acceptable for most industrial applications.