2KBP04M Single Phase Bridge Rectifier Equivalent & Substitute Parts

Part Overview

The 2KBP04M is a single phase bridge rectifier manufactured by onsemi, rated for 400 V peak reverse voltage and 2 A average rectified current in a 4-SIP KBPM through-hole package. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

Substiute Parts

2KBP04M

onsemiIn Stock: 16342KBP04M Datasheet

Current PartRFQ

KBP04G

Diodes IncorporatedIn Stock: 2319KBP04G Datasheet

SimilarRFQ

KBP204G

SMC Diode SolutionsIn Stock: 1327KBP204G Datasheet

SimilarRFQ

VS-2KBP005

Vishay General Semiconductor - Diodes DivisionIn Stock: 1158VS-2KBP005 Datasheet

SimilarRFQ

VS-2KBP02

Vishay General Semiconductor - Diodes DivisionIn Stock: 961VS-2KBP02 Datasheet

SimilarRFQ

VS-2KBP04

Vishay General Semiconductor - Diodes DivisionIn Stock: 1240VS-2KBP04 Datasheet

SimilarRFQ

VS-2KBP06

Vishay General Semiconductor - Diodes DivisionIn Stock: 2602VS-2KBP06 Datasheet

SimilarRFQ

VS-2KBP08

Vishay General Semiconductor - Diodes DivisionIn Stock: 1919VS-2KBP08 Datasheet

SimilarRFQ

VS-2KBP10

Vishay General Semiconductor - Diodes DivisionIn Stock: 1554VS-2KBP10 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 2KBP04M is determined by the following critical parameters:

• Voltage - Peak Reverse (Max): 400 V minimum requirement
• Current - Average Rectified (Io): 2 A minimum requirement
• Diode Type: Single Phase bridge rectifier
• Mounting Type: Through Hole
• Operating Temperature Range: Must support the application's thermal requirements

Substitute parts are grouped into two categories:

Category 1 - Direct Electrical Equivalents (400 V, 2 A): Parts meeting or exceeding the exact voltage and current specifications with active product status and modern compliance certifications.

Category 2 - Voltage-Variant Alternatives (Same 2 A Current): Parts with the same 2 A current rating but different voltage ratings, suitable for applications where the 400 V specification is not a hard requirement or where higher voltage margin is beneficial.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute - Direct Equivalent:

KBP204G (SMC Diode Solutions) is the primary substitute for 2KBP04M. It matches the critical electrical specifications: 400 V peak reverse voltage and 2 A average rectified current. The part is active with ROHS3 compliance and maintains the same operating temperature range (-55°C to 150°C). The 4-ESIP package is mechanically compatible with through-hole mounting applications. This part provides the most direct functional replacement.

Secondary Substitute - Equivalent Electrical Performance:

VS-2KBP04 (Vishay General Semiconductor - Diodes Division) meets the 400 V and 2 A requirements with active product status and ROHS3 compliance. The D-44 package is a standard through-hole configuration. The operating temperature range is -40°C to 150°C, which covers most industrial applications. Forward voltage characteristics are slightly improved (1 V @ 1 A versus 1.1 V @ 3.14 A).

Alternative Substitutes - Voltage-Variant Options:

For applications where voltage margin is beneficial or where the 400 V specification is not a hard constraint, the following active parts with 2 A current rating are available:

• VS-2KBP02: 200 V rating for lower voltage applications
• VS-2KBP06: 600 V rating for higher voltage margin
• VS-2KBP08: 800 V rating for maximum voltage margin
• VS-2KBP10: 1 kV rating for high-voltage applications

All Vishay VS-2KBP series parts feature ROHS3 compliance and active product status.

Not Recommended:

KBP04G (Diodes Incorporated) has a reduced current rating of 1.5 A, which does not meet the 2 A specification of the original part and is unsuitable for direct substitution.

Frequently Asked Questions (FAQ)

Q: Can KBP04G replace 2KBP04M?

A: No. KBP04G is rated for 1.5 A average rectified current, while 2KBP04M requires 2 A. This 25% current reduction makes KBP04G unsuitable for direct substitution in applications designed for 2 A operation.

Q: What is the difference between KBP204G and VS-2KBP04?

A: Both parts meet the 400 V and 2 A specifications. KBP204G uses a 4-ESIP package, while VS-2KBP04 uses a 4-SIP D-44 package. Both are through-hole mounted. KBP204G has REACH Affected status, while VS-2KBP04 has REACH Unaffected status. Selection depends on package compatibility with your PCB layout and regulatory requirements.

Q: Can I use VS-2KBP06 (600 V) instead of 2KBP04M (400 V)?

A: Yes, if your application permits higher voltage rating. The 600 V rating provides additional voltage margin and is electrically compatible with 400 V circuits. The 2 A current rating matches the original specification. Verify that your PCB layout and mechanical mounting accommodate the D-44 package.

Q: Are all substitute parts RoHS compliant?

A: All active substitute parts listed are ROHS3 compliant. The original 2KBP04M does not specify RoHS status. If RoHS compliance is required for your application, select from the active substitute parts.

Q: What is the difference between KBPM and KBP packages?

A: Both are 4-SIP through-hole packages. KBPM is the onsemi designation, while KBP is the industry standard designation used by other manufacturers. The packages are mechanically and electrically compatible for through-hole PCB mounting.

Q: Can I use a lower voltage part like VS-2KBP02 (200 V)?

A: No. VS-2KBP02 is rated for 200 V peak reverse voltage, which is insufficient for applications requiring 400 V operation. Using an undersized voltage rating will result in component failure.

Q: What is the operating temperature difference between 2KBP04M and VS-2KBP04?

A: 2KBP04M operates from -55°C to 150°C, while VS-2KBP04 operates from -40°C to 150°C. If your application requires operation below -40°C, verify that VS-2KBP04 meets your thermal requirements. For most industrial applications, the -40°C minimum is sufficient.