KBP10M-E4/45 Equivalent & Substitute Parts

Part Overview

The KBP10M-E4/45 is a single-phase bridge rectifier manufactured by Vishay General Semiconductor - Diodes Division, rated for 1 kV peak reverse voltage and 1.5 A average rectified current. This component is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement continuity. Bridge rectifiers in this voltage and current class are widely used in power supply circuits, battery charging systems, and AC-to-DC conversion applications where single-phase rectification is required.

Key Parameters

Parameter	Value
Diode Type	Single Phase
Technology	Standard
Voltage - Peak Reverse (Max)	1 kV
Current - Average Rectified (Io)	1.5 A
Voltage - Forward (Vf) (Max)	1.1 V
Current - Reverse Leakage @ Vr	5 µA @ 1000 V
Operating Temperature Range	-55°C ~ 150°C (TJ)
Mounting Type	Through Hole
Package / Case	4-SIP, KBPM
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the KBP10M-E4/45 is determined by strict equivalence across the following critical parameters:

Peak reverse voltage rating of 1 kV (minimum requirement)
Single-phase bridge rectifier topology
Through-hole mounting configuration
4-SIP package family compatibility
Current rating sufficient for 1.5 A average rectified current
Forward voltage characteristics at rated current
Reverse leakage current specification at rated voltage

The identified substitute parts meet these core electrical and mechanical requirements. Variations in current rating, temperature range, and manufacturer compliance certifications are noted but do not preclude functional substitution when application requirements permit.

Parameter Comparison

Parameter	KBP10M-E4/45 (Vishay)	KBP10G (Diodes Inc.)	KBP210G (Diotec)
Diode Type	Single Phase	Single Phase	Single Phase
Technology	Standard	Standard	Standard
Voltage - Peak Reverse (Max)	1 kV	1 kV	1 kV
Current - Average Rectified (Io)	1.5 A	1.5 A	1.2 A
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 3.14 A	1.1 V @ 1.5 A	1.1 V @ 2 A
Current - Reverse Leakage @ Vr	5 µA @ 1000 V	5 µA @ 1000 V	5 µA @ 1000 V
Operating Temperature Range	-55°C ~ 150°C (TJ)	-65°C ~ 150°C (TJ)	-50°C ~ 150°C (TJ)
Mounting Type	Through Hole	Through Hole	Through Hole
Package / Case	4-SIP, KBPM	4-SIP, KBP	4-SIP, KBP
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Not applicable
Product Status	Obsolete	Active	Active

Engineering Selection Recommendations

KBP10G (Diodes Incorporated) is the primary substitute for KBP10M-E4/45. This part maintains identical electrical specifications across all critical parameters: 1 kV peak reverse voltage, 1.5 A average rectified current, 1.1 V forward voltage, and 5 µA reverse leakage current. The KBP10G is ROHS3 compliant and carries active product status with established supply availability. The extended operating temperature range (-65°C to 150°C) provides additional thermal margin compared to the original part.

KBP210G (Diotec Semiconductor) is a secondary substitute option. While it maintains the 1 kV voltage rating and 4-SIP package configuration, the average rectified current is rated at 1.2 A, which is below the 1.5 A specification of the original part. This part is suitable only for applications where the actual current demand does not exceed 1.2 A. The KBP210G is active in production and widely available. RoHS compliance status is vendor-undefined for this part.

Both substitute parts are mechanically compatible with the through-hole 4-SIP footprint and electrically equivalent within the specified parameter ranges.

Frequently Asked Questions (FAQ)

Q: Can KBP10G directly replace KBP10M-E4/45 without circuit modification?

A: Yes. The KBP10G maintains identical peak reverse voltage (1 kV), average rectified current (1.5 A), forward voltage (1.1 V), and reverse leakage current (5 µA) specifications. The 4-SIP through-hole package is mechanically compatible. No circuit changes are required.

Q: What is the difference between KBP10G and KBP210G?

A: The primary difference is the average rectified current rating. KBP10G is rated for 1.5 A, matching the original KBP10M-E4/45. KBP210G is rated for 1.2 A. Both maintain the 1 kV voltage rating and 4-SIP package. KBP210G is suitable only if application current requirements do not exceed 1.2 A.

Q: Are there package compatibility concerns when substituting?

A: Both substitute parts use the 4-SIP through-hole package family. While the package designations differ slightly (KBPM for the original, KBP for substitutes), the physical footprint and pin configuration are compatible with standard 4-SIP PCB layouts.

Q: What is the compliance status of these substitute parts?

A: KBP10G is ROHS3 compliant with active product status. KBP210G is active in production but has undefined RoHS compliance status. For applications requiring RoHS certification, KBP10G is the recommended choice.

Q: Why is KBP10M-E4/45 listed as obsolete?

A: Obsolete status indicates the part is no longer manufactured by Vishay. Substitute parts from active manufacturers (Diodes Incorporated and Diotec Semiconductor) provide equivalent functionality and are recommended for new designs and ongoing procurement.

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