KBP308-BP Bridge Rectifier Equivalent & Substitute Parts

Part Overview

The KBP308-BP is a single-phase bridge rectifier manufactured by Micro Commercial Co, rated for 800 V peak reverse voltage and 3 A average rectified current. This component is classified as obsolete, making identification of active equivalent parts essential for ongoing design support and procurement continuity. The KBP308-BP operates across a temperature range of -55°C to 125°C and is packaged in a 4-SIP KBPR through-hole configuration. Locating functionally compatible substitutes ensures uninterrupted supply chain access for applications requiring this rectifier specification.

Substiute Parts

KBP308-BP

Micro Commercial CoIn Stock: 822KBP308-BP Datasheet

Current PartRFQ

KBP308G-BP

Micro Commercial CoIn Stock: 4860KBP308G-BP Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the KBP308-BP is determined by matching the following critical electrical and mechanical parameters:

• Voltage - Peak Reverse (Max): 800 V
• Current - Average Rectified (Io): 3 A
• Voltage - Forward (Vf) (Max) @ If: 1.1 V @ 1 A
• Current - Reverse Leakage @ Vr: 10 µA @ 800 V
• Mounting Type: Through Hole
• Package / Case: 4-SIP configuration
• Diode Type: Single Phase
• Technology: Standard

The KBP308G-BP meets all these substitution criteria and shares the same base product number (KBP308), confirming functional equivalence for the specified electrical and thermal operating conditions.

Parameter Comparison

Engineering Selection Recommendations

The KBP308G-BP is the direct active substitute for the obsolete KBP308-BP. Both components are manufactured by Micro Commercial Co and share identical electrical specifications for voltage, current, and leakage parameters. The KBP308G-BP maintains ROHS3 compliance and unlimited moisture sensitivity rating, ensuring regulatory and environmental compatibility.

The primary distinction is product status: the KBP308-BP is obsolete, while the KBP308G-BP is active and available in production quantities (4850 Pcs in stock). The KBP308G-BP also provides an extended operating temperature range (-55°C to 150°C versus -55°C to 125°C), offering additional thermal margin for demanding applications.

Package designation differs (GBP versus KBPR), but both are 4-SIP through-hole configurations with identical pin configurations and mechanical footprints suitable for direct board-level substitution.

Frequently Asked Questions (FAQ)

Q: Can the KBP308G-BP replace the KBP308-BP in existing designs?

A: Yes. The KBP308G-BP meets all electrical specifications of the KBP308-BP, including voltage rating (800 V), current rating (3 A), forward voltage drop (1.1 V @ 1 A), and reverse leakage (10 µA @ 800 V). Both components use identical 4-SIP through-hole packaging with compatible mechanical footprints.

Q: What is the difference between the KBPR and GBP package designations?

A: KBPR and GBP are supplier device package designations for the same 4-SIP through-hole form factor. Both packages are mechanically and electrically compatible for PCB mounting and circuit operation.

Q: Does the extended temperature range of the KBP308G-BP affect compatibility?

A: No. The KBP308G-BP operating range (-55°C to 150°C) encompasses the KBP308-BP range (-55°C to 125°C). The extended upper temperature limit provides additional design margin without affecting performance within the original specification window.

Q: Are both parts RoHS compliant?

A: Yes. Both the KBP308-BP and KBP308G-BP are ROHS3 compliant with unlimited moisture sensitivity (MSL 1), meeting current environmental and regulatory requirements.

Q: Why is the KBP308-BP listed as obsolete?

A: The KBP308-BP has been discontinued by the manufacturer. The KBP308G-BP is the active production equivalent, ensuring continued availability and supply chain support for this rectifier specification.