KBP005M Bridge Rectifier Single Phase 50V 1.5A Equivalent & Substitute Parts

Part Overview

The KBP005M is a single-phase bridge rectifier manufactured by onsemi, rated for 50 V peak reverse voltage and 1.5 A average rectified current in a 4-SIP KBPM through-hole package. This part is classified as obsolete. Due to its obsolete status, equivalent and substitute parts from active manufacturers are necessary for ongoing design support, production continuity, and component sourcing.

Key Parameters

Parameter	KBP005M Value
Voltage - Peak Reverse (Max)	50 V
Current - Average Rectified (Io)	1.5 A
Voltage - Forward (Vf) (Max) @ If	1 V @ 1 A
Current - Reverse Leakage @ Vr	5 µA @ 50 V
Operating Temperature Range	-55°C ~ 165°C (TJ)
Mounting Type	Through Hole
Package / Case	4-SIP, KBPM
Diode Type	Single Phase
Technology	Standard

Substitute Part Grouping Explanation

Substitution for the KBP005M is determined by the following electrical and mechanical parameters:

Primary Substitution Criteria (Direct Equivalents):

Voltage - Peak Reverse (Max): 50 V
Current - Average Rectified (Io): 1.5 A minimum
Diode Type: Single Phase
Technology: Standard
Mounting Type: Through Hole
Package / Case: 4-SIP or compatible through-hole configuration

Secondary Substitution Criteria (Functional Alternatives):

Operating Temperature Range: Must support the application's thermal requirements
Voltage - Forward (Vf): Electrical performance within acceptable limits
Current - Reverse Leakage: Leakage characteristics at rated voltage

Parts are grouped into two categories:

Group 1 - Direct Electrical Equivalents (50 V, 1.5 A - 2 A): KBP005G, KBP2005G, and VS-2KBP005 maintain the 50 V rating with current ratings of 1.5 A to 2 A, making them suitable direct replacements for the KBP005M.

Group 2 - Higher Voltage Alternatives (200 V - 1 kV, 2 A): VS-2KBP02, VS-2KBP04, VS-2KBP06, VS-2KBP08, and VS-2KBP10 provide higher voltage ratings (200 V to 1 kV) at 2 A current. These are functional alternatives when higher voltage capability is required or when 50 V parts are unavailable, though they introduce additional voltage margin beyond the KBP005M specification.

Parameter Comparison

Part Number	Manufacturer	Voltage - Peak Reverse (Max)	Current - Average Rectified (Io)	Voltage - Forward (Vf) (Max) @ If	Current - Reverse Leakage @ Vr	Operating Temperature	Package / Case	Product Status
KBP005M	onsemi	50 V	1.5 A	1 V @ 1 A	5 µA @ 50 V	-55°C ~ 165°C	4-SIP, KBPM	Obsolete
KBP005G	Diodes Incorporated	50 V	1.5 A	1.1 V @ 1.5 A	5 µA @ 50 V	-65°C ~ 150°C	4-SIP, KBP	Active
KBP2005G	SMC Diode Solutions	50 V	2 A	1.1 V @ 2 A	5 µA @ 50 V	-55°C ~ 150°C	4-ESIP	Active
VS-2KBP005	Vishay General Semiconductor - Diodes Division	50 V	2 A	1 V @ 1 A	10 µA @ 50 V	-40°C ~ 150°C	4-SIP, D-44	Active
VS-2KBP02	Vishay General Semiconductor - Diodes Division	200 V	2 A	1 V @ 1 A	10 µA @ 200 V	-40°C ~ 150°C	4-SIP, D-44	Active
VS-2KBP04	Vishay General Semiconductor - Diodes Division	400 V	2 A	1 V @ 1 A	10 µA @ 400 V	-40°C ~ 150°C	4-SIP, D-44	Active
VS-2KBP06	Vishay General Semiconductor - Diodes Division	600 V	2 A	1 V @ 1 A	10 µA @ 600 V	-40°C ~ 150°C	4-SIP, D-44	Active
VS-2KBP08	Vishay General Semiconductor - Diodes Division	800 V	2 A	1 V @ 1 A	10 µA @ 800 V	-40°C ~ 150°C	4-SIP, D-44	Active
VS-2KBP10	Vishay General Semiconductor - Diodes Division	1 kV	2 A	1 V @ 1 A	10 µA @ 1000 V	-40°C ~ 150°C	4-SIP, D-44	Active

Engineering Selection Recommendations

For Direct Replacement (50 V, 1.5 A - 2 A applications):

KBP005G (Diodes Incorporated) is the primary substitute. It maintains 50 V and 1.5 A ratings with active product status and RoHS3 compliance. Operating temperature range is -65°C to 150°C, which covers the lower end of the KBP005M range (-55°C to 165°C). Package compatibility is 4-SIP KBP.

KBP2005G (SMC Diode Solutions) provides 50 V at 2 A current capacity with active status and RoHS3 compliance. Operating temperature matches the KBP005M lower bound at -55°C to 150°C. Package is 4-ESIP, which is mechanically compatible with 4-SIP footprints. REACH status is affected, requiring verification for regulated applications.

VS-2KBP005 (Vishay General Semiconductor - Diodes Division) offers 50 V at 2 A with active status and RoHS3 compliance. Operating temperature range is -40°C to 150°C, which does not extend to the KBP005M's lower limit of -55°C. Package is 4-SIP D-44, mechanically compatible with KBPM. This part is suitable for applications not requiring operation below -40°C.

For Higher Voltage Applications (when 50 V is insufficient):

VS-2KBP02, VS-2KBP04, VS-2KBP06, VS-2KBP08, and VS-2KBP10 are all active Vishay parts with RoHS3 compliance and 2 A current rating. These provide voltage ratings of 200 V, 400 V, 600 V, 800 V, and 1 kV respectively. All operate from -40°C to 150°C and use 4-SIP D-44 packaging. Selection depends on the required voltage margin for the application circuit.

Frequently Asked Questions (FAQ)

Q: Can KBP005G directly replace KBP005M?

A: Yes. KBP005G maintains the same 50 V peak reverse voltage and 1.5 A average rectified current. Both are single-phase standard bridge rectifiers in 4-SIP through-hole packages. KBP005G is active and RoHS3 compliant. Operating temperature range differs slightly (-65°C to 150°C vs. -55°C to 165°C), so verify application requirements at temperature extremes.

Q: What is the difference between KBP2005G and VS-2KBP005?

A: Both provide 50 V at 2 A current capacity. KBP2005G is manufactured by SMC Diode Solutions in 4-ESIP package with -55°C to 150°C operating range. VS-2KBP005 is manufactured by Vishay in 4-SIP D-44 package with -40°C to 150°C operating range. Both are mechanically compatible with the KBP005M footprint. KBP2005G has REACH affected status; VS-2KBP005 has REACH unaffected status.

Q: Can I use VS-2KBP02 (200 V) instead of KBP005M (50 V)?

A: Functionally, yes. VS-2KBP02 will operate in a 50 V circuit with additional voltage margin. However, this introduces unnecessary cost and may affect circuit performance characteristics. Use higher voltage parts only when the application circuit requires voltage ratings above 50 V or when 50 V equivalents are unavailable.

Q: Are all substitute parts through-hole mounted?

A: Yes. All listed substitutes are through-hole mounted in 4-SIP or compatible packages (KBPM, KBP, D-44, 4-ESIP). They are mechanically compatible with the KBP005M footprint.

Q: What is the impact of different forward voltage (Vf) specifications?

A: KBP005M specifies 1 V @ 1 A. KBP005G and KBP2005G specify 1.1 V @ 1.5 A and 1.1 V @ 2 A respectively. This 0.1 V difference is typical across manufacturers and generally does not affect circuit operation. Verify power dissipation and thermal performance if the application is thermally constrained.

Q: Do all substitutes have the same reverse leakage current?

A: No. KBP005M and KBP005G specify 5 µA @ rated voltage. VS-2KBP series parts specify 10 µA @ rated voltage. This difference is within acceptable limits for most applications but should be verified for high-impedance or precision circuits.

Q: Which substitute has the widest operating temperature range?

A: KBP005G operates from -65°C to 150°C, providing the lowest minimum temperature. However, it does not reach the KBP005M's upper limit of 165°C. For applications requiring -55°C to 165°C operation, KBP005M or KBP2005G are more suitable, though KBP2005G only reaches 150°C maximum.

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