RB157-BP Bridge Rectifier Equivalent & Substitute Parts

Part Overview

The RB157-BP is a single-phase bridge rectifier manufactured by Micro Commercial Co, rated for 1 kV peak reverse voltage and 1.5 A average rectified current. This component is classified as obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications. The RB157-BP features a through-hole mounting configuration in a 4-Circular RB-15 package and operates across a temperature range of -55°C to 125°C.

Substiute Parts

RB157-BP

Micro Commercial CoIn Stock: 932RB157-BP Datasheet

Current PartRFQ

W10G-E4/51

Vishay General Semiconductor - Diodes DivisionIn Stock: 3465W10G-E4/51 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RB157-BP is determined by the following critical parameters:

• Diode Type: Single Phase
• Voltage - Peak Reverse (Max): 1 kV minimum
• Current - Average Rectified (Io): 1.5 A minimum
• Mounting Type: Through Hole
• Package / Case: 4-Circular configuration
• RoHS Status: ROHS3 Compliant

The W10G-E4/51 qualifies as an equivalent substitute because it matches all critical electrical specifications and maintains the same through-hole mounting configuration with compatible 4-Circular package geometry.

Parameter Comparison

Engineering Selection Recommendations

The W10G-E4/51 is an active product from Vishay General Semiconductor - Diodes Division and serves as the direct equivalent for the obsolete RB157-BP. Both components maintain identical electrical ratings for peak reverse voltage (1 kV) and average rectified current (1.5 A), with matching through-hole mounting and 4-Circular package configurations.

The W10G-E4/51 demonstrates superior performance characteristics in reverse leakage current (5 µA versus 10 µA) and an extended operating temperature range (-55°C to 150°C versus -55°C to 125°C). Both parts maintain ROHS3 compliance and REACH Unaffected status, ensuring regulatory alignment for current manufacturing standards.

Frequently Asked Questions (FAQ)

Q: Can the W10G-E4/51 directly replace the RB157-BP in existing designs?

A: Yes. Both components share identical peak reverse voltage (1 kV), average rectified current (1.5 A), and through-hole mounting configuration with 4-Circular package geometry. The W10G-E4/51 is pin-compatible and electrically equivalent for standard rectification applications.

Q: What are the differences between the RB157-BP and W10G-E4/51?

A: The primary differences are product status (RB157-BP is obsolete; W10G-E4/51 is active), reverse leakage current (10 µA versus 5 µA at 1000 V), and maximum operating temperature (125°C versus 150°C). The W10G-E4/51 offers improved performance in both parameters.

Q: Are there package compatibility concerns when substituting?

A: Both components use 4-Circular through-hole packages (RB-15 and WOG respectively). Physical dimensions and pin spacing are compatible for standard PCB layouts designed for single-phase bridge rectifiers in this form factor.

Q: Do both parts meet current regulatory requirements?

A: Yes. Both the RB157-BP and W10G-E4/51 are ROHS3 compliant and REACH Unaffected, meeting current environmental and regulatory standards for electronic component manufacturing and distribution.

Q: Which part should be selected for new designs?

A: The W10G-E4/51 is the appropriate choice for new designs due to its active product status, improved reverse leakage characteristics, and extended operating temperature range. The RB157-BP should only be used for legacy system maintenance where existing inventory is available.