2KBP02M-M4/51 Bridge Rectifier Equivalent & Substitute Parts

Part Overview

The 2KBP02M-M4/51 is a single-phase bridge rectifier manufactured by Vishay General Semiconductor - Diodes Division, rated for 200 V peak reverse voltage and 2 A average rectified current. This component is classified as obsolete, making identification of equivalent and substitute parts essential for ongoing system maintenance and new design implementations. The through-hole KBPM package configuration supports standard PCB assembly processes. Substitute parts must maintain electrical compatibility across voltage, current, and thermal operating ranges while meeting modern compliance requirements.

Substiute Parts

2KBP02M-M4/51

Vishay General Semiconductor - Diodes DivisionIn Stock: 9962KBP02M-M4/51 Datasheet

Current PartRFQ

KBP02G

Diodes IncorporatedIn Stock: 2261KBP02G Datasheet

MFR RecommendedRFQ

KBP202G

SMC Diode SolutionsIn Stock: 1451KBP202G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 2KBP02M-M4/51 is determined by the following critical parameters:

• Voltage Rating: Peak reverse voltage must equal or exceed 200 V
• Current Rating: Average rectified current must meet or exceed 2 A
• Diode Type & Technology: Single-phase standard bridge rectifier configuration
• Mounting Type: Through-hole assembly compatibility
• Package Compatibility: 4-SIP or equivalent footprint
• Thermal Range: Operating temperature capability must encompass application requirements
• Compliance: RoHS3 compliance required for modern supply chains

Two substitute parts meet these criteria: KBP02G (Diodes Incorporated) and KBP202G (SMC Diode Solutions). Both maintain the 200 V voltage rating and single-phase bridge rectifier topology. KBP202G matches the 2 A current specification exactly, while KBP02G operates at 1.5 A, suitable for applications with lower current demands.

Parameter Comparison

Engineering Selection Recommendations

KBP202G (SMC Diode Solutions) is the primary substitute for direct replacement applications. This part maintains identical voltage (200 V) and current (2 A) ratings, matching the original 2KBP02M-M4/51 specifications. Both components share ROHS3 compliance and unlimited moisture sensitivity rating. The KBP202G operates within the -55°C to 150°C temperature range, covering the lower portion of the original -55°C to 165°C specification. For applications requiring the full upper temperature range of 165°C, thermal analysis is necessary to confirm KBP202G suitability. The 4-ESIP package differs from the original KBPM package; PCB footprint verification is required before implementation.

KBP02G (Diodes Incorporated) serves as a substitute for current-limited applications operating at 1.5 A or below. This part provides extended lower temperature capability (-65°C minimum) compared to the original specification. The KBP02G maintains 200 V voltage rating and ROHS3 compliance. Selection of KBP02G requires confirmation that circuit current demands do not exceed 1.5 A average rectified current. The 4-SIP KBP package offers closer mechanical compatibility with the original KBPM footprint than KBP202G.

Both substitutes are active products with established supply availability, eliminating obsolescence concerns associated with the original part.

Frequently Asked Questions (FAQ)

Q: Can KBP02G replace 2KBP02M-M4/51 in all applications?

A: KBP02G is suitable only for applications where average rectified current does not exceed 1.5 A. The original 2KBP02M-M4/51 is rated for 2 A. Exceeding the 1.5 A limit on KBP02G will cause thermal stress and potential component failure. Verify circuit current requirements before selection.

Q: What is the difference between KBP202G and KBP02G?

A: The primary difference is current rating: KBP202G is rated for 2 A average rectified current, while KBP02G is rated for 1.5 A. Both maintain 200 V voltage rating and single-phase bridge rectifier topology. KBP02G offers lower temperature minimum (-65°C vs. -55°C). Select based on actual circuit current requirements.

Q: Are the package footprints compatible?

A: The original 2KBP02M-M4/51 uses a 4-SIP KBPM package. KBP02G uses a 4-SIP KBP package, offering similar through-hole pin configuration. KBP202G uses a 4-ESIP package, which differs mechanically. PCB footprint verification is required for KBP202G implementation. KBP02G provides closer mechanical compatibility.

Q: What is the temperature operating range difference?

A: The original 2KBP02M-M4/51 operates from -55°C to 165°C. KBP02G operates from -65°C to 150°C, and KBP202G operates from -55°C to 150°C. Both substitutes have a 15°C lower maximum temperature limit. Applications requiring operation above 150°C require thermal analysis or alternative component selection.

Q: Are both substitutes RoHS3 compliant?

A: Yes, both KBP02G and KBP202G are ROHS3 compliant. The original 2KBP02M-M4/51 is also ROHS3 compliant. KBP202G is REACH Affected, while both the original part and KBP02G are REACH Unaffected. Verify REACH compliance requirements for your supply chain and application region.

Q: Which substitute should I select for new designs?

A: For new designs requiring 2 A current capacity, select KBP202G. For designs with 1.5 A or lower current requirements, KBP02G is acceptable and offers extended lower temperature range. Both are active products with established supply chains, eliminating obsolescence risk.