Equivalent & Substitute Parts for 2KBP005M/1 Bridge Rectifier

Part Overview

The 2KBP005M/1 is a single-phase bridge rectifier manufactured by Vishay General Semiconductor - Diodes Division, rated for 50 V peak reverse voltage and 2 A average rectified current. This component is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. The part is housed in a 4-SIP KBPM package for through-hole mounting applications.

Key Parameters

Parameter	Value
Voltage - Peak Reverse (Max)	50 V
Current - Average Rectified (Io)	2 A
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 3.14 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 eligibility for the 2KBP005M/1 is determined by the following critical parameters:

Voltage - Peak Reverse (Max): Must equal 50 V
Current - Average Rectified (Io): Must equal or exceed 2 A
Diode Type: Must be Single Phase
Technology: Must be Standard
Mounting Type: Must be Through Hole
Package compatibility: Physical form factor must accommodate 4-SIP configuration

The three qualified substitute parts meet these electrical and mechanical requirements while offering improved product status and compliance characteristics compared to the obsolete 2KBP005M/1.

Parameter Comparison

Parameter	2KBP005M/1 (Main)	VS-2KBP005	KBP005G	KBP2005G
Manufacturer	Vishay General Semiconductor - Diodes Division	Vishay General Semiconductor - Diodes Division	Diodes Incorporated	SMC Diode Solutions
Voltage - Peak Reverse (Max)	50 V	50 V	50 V	50 V
Current - Average Rectified (Io)	2 A	2 A	1.5 A	2 A
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 3.14 A	1 V @ 1 A	1.1 V @ 1.5 A	1.1 V @ 2 A
Current - Reverse Leakage @ Vr	5 µA @ 50 V	10 µA @ 50 V	5 µA @ 50 V	5 µA @ 50 V
Operating Temperature Range	-55°C ~ 165°C (TJ)	-40°C ~ 150°C (TJ)	-65°C ~ 150°C (TJ)	-55°C ~ 150°C (TJ)
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	4-SIP, KBPM	4-SIP, D-44	4-SIP, KBP	4-ESIP, KBP
Product Status	Obsolete	Active	Active	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

VS-2KBP005 is the primary substitute option, manufactured by the same supplier (Vishay General Semiconductor - Diodes Division) as the original 2KBP005M/1. This part maintains identical electrical ratings of 50 V and 2 A, is actively produced, and achieves ROHS3 compliance. The D-44 package provides mechanical compatibility with 4-SIP through-hole mounting. This option minimizes design and qualification risk due to manufacturer continuity.

KBP2005G from SMC Diode Solutions provides an alternative with matching 50 V and 2 A specifications, active product status, and ROHS3 compliance. The 4-ESIP package maintains through-hole mounting compatibility. This option is suitable when supplier diversification is required.

KBP005G from Diodes Incorporated is qualified as a substitute despite a reduced current rating of 1.5 A, which is below the original 2 A specification. This part is only appropriate for applications where the actual load current does not exceed 1.5 A. The part offers the widest operating temperature range (-65°C ~ 150°C) and ROHS3 compliance. Selection of this part requires confirmation that circuit requirements do not demand the full 2 A rating.

All three substitute parts are actively produced and RoHS compliant, addressing the obsolescence and compliance limitations of the original 2KBP005M/1.

Frequently Asked Questions (FAQ)

Q: Can KBP005G be used as a direct replacement for 2KBP005M/1?

A: KBP005G is electrically qualified as a substitute only if the application circuit does not require the full 2 A current rating. The KBP005G is rated for 1.5 A average rectified current, which is 25% lower than the original 2 A specification. Verify actual circuit current requirements before selection.

Q: What is the difference between the D-44 and KBP package formats?

A: Both D-44 and KBP are 4-SIP through-hole package variants. The D-44 is used by Vishay (VS-2KBP005), while the KBP format is used by Diodes Incorporated (KBP005G) and SMC Diode Solutions (KBP2005G). All three maintain mechanical compatibility with standard 4-SIP through-hole PCB footprints.

Q: Why is the 2KBP005M/1 marked as obsolete?

A: The 2KBP005M/1 is classified as obsolete by Vishay General Semiconductor - Diodes Division. Active substitute parts with identical or superior electrical specifications are available from multiple manufacturers, making the original part unnecessary for new designs.

Q: Are all substitute parts RoHS compliant?

A: Yes. VS-2KBP005, KBP005G, and KBP2005G all achieve ROHS3 compliance, whereas the original 2KBP005M/1 is RoHS non-compliant. This compliance improvement is a key advantage of transitioning to substitute parts.

Q: What is the impact of the forward voltage difference between parts?

A: Forward voltage specifications are provided at different test currents across the parts. VS-2KBP005 specifies 1 V @ 1 A, while 2KBP005M/1, KBP005G, and KBP2005G all specify 1.1 V at their respective rated currents. These differences are within normal manufacturing tolerance for bridge rectifier technology and do not affect substitution eligibility.

Q: Can I use these parts interchangeably in existing designs?

A: VS-2KBP005 and KBP2005G are direct electrical equivalents and can be used interchangeably with the 2KBP005M/1 in existing designs. KBP005G requires current verification due to its 1.5 A rating. All three parts use through-hole mounting and are compatible with standard 4-SIP PCB footprints.

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