KBL10/1 Bridge Rectifier Equivalent & Substitute Parts

Part Overview

The KBL10/1 is a single-phase bridge rectifier manufactured by Vishay General Semiconductor - Diodes Division, rated for 1 kV peak reverse voltage and 4 A average rectified current. This component is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. The KBL10/1 features a through-hole 4-SIP package configuration suitable for standard PCB assembly applications.

Substiute Parts

KBL10/1

Vishay General Semiconductor - Diodes DivisionIn Stock: 995KBL10/1 Datasheet

Current PartRFQ

GBU2510-G

Comchip TechnologyIn Stock: 13533GBU2510-G Datasheet

MFR RecommendedRFQ

GBU410-G

Comchip TechnologyIn Stock: 1005GBU410-G Datasheet

MFR RecommendedRFQ

GBU610-G

Comchip TechnologyIn Stock: 1146GBU610-G Datasheet

MFR RecommendedRFQ

GBU810-G

Comchip TechnologyIn Stock: 773GBU810-G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the KBL10/1 are selected based on the following critical parameters that determine functional equivalence:

• Voltage Rating: All substitutes maintain the 1 kV peak reverse voltage specification
• Diode Type & Technology: All substitutes are single-phase standard bridge rectifiers
• Mounting Configuration: All substitutes use through-hole mounting with 4-SIP package geometry
• Current Rating Compatibility: Substitutes are grouped by current capacity, with the GBU410-G providing direct 4 A equivalence, while higher-rated options (GBU610-G, GBU810-G, GBU2510-G) offer increased current handling for applications requiring additional margin

The substitutes listed—GBU810-G, GBU2510-G, GBU410-G, and GBU610-G—all share the same voltage class, package footprint, and mounting type, enabling direct mechanical and electrical substitution within the specified parameter envelope.

Parameter Comparison

Engineering Selection Recommendations

GBU410-G provides the closest electrical equivalence to the KBL10/1, matching the 4 A current rating while maintaining identical 1 kV voltage specifications and through-hole 4-SIP package configuration. This part is active in production and ROHS3 compliant, making it the primary substitute for direct replacement applications.

GBU610-G and GBU810-G offer increased current capacity (6 A and 8 A respectively) while maintaining voltage and package compatibility. These parts are suitable for applications requiring additional thermal or current margin beyond the original 4 A specification.

GBU2510-G provides the highest current rating (25 A) within the substitute group and is recommended only when significant current headroom is required, as it represents a substantial over-specification relative to the KBL10/1 baseline.

All substitute parts are active products with ROHS3 compliance and specified operating temperature ranges (-55°C to 150°C), addressing the obsolescence of the original KBL10/1 component.

Frequently Asked Questions (FAQ)

Q: Can GBU410-G directly replace KBL10/1 in existing designs? A: Yes. GBU410-G matches the 4 A current rating, 1 kV voltage specification, and through-hole 4-SIP package footprint of the KBL10/1, enabling direct substitution without circuit modification.

Q: What is the difference between KBL and GBU package designations? A: Both KBL and GBU are 4-SIP through-hole package configurations for single-phase bridge rectifiers. The designations reflect different manufacturer conventions; the physical footprint and pin configuration are compatible for PCB mounting.

Q: Why do substitute parts show higher reverse leakage current (10 µA vs. 5 µA)? A: The substitute parts from Comchip Technology specify 10 µA reverse leakage at rated voltage, compared to the KBL10/1 specification of 5 µA. This difference remains within acceptable limits for standard bridge rectifier applications and does not affect functional compatibility.

Q: Should I select GBU610-G or GBU810-G if my application only requires 4 A? A: GBU410-G is the appropriate selection for 4 A applications, as it matches the original specification. Higher-rated parts (GBU610-G, GBU810-G) introduce unnecessary cost and thermal considerations without functional benefit at lower current levels.

Q: Are all substitute parts RoHS compliant? A: Yes. All listed substitutes (GBU410-G, GBU610-G, GBU810-G, GBU2510-G) are ROHS3 compliant, addressing environmental and regulatory requirements that the obsolete KBL10/1 does not meet.