KBU807G Bridge Rectifier Equivalent & Substitute Parts

Part Overview

The KBU807G is a single-phase bridge rectifier manufactured by Taiwan Semiconductor Corporation, designed for standard rectification applications requiring 1 kV peak reverse voltage and 8 A average rectified current. This component is classified as an active product with full RoHS3 compliance and unlimited moisture sensitivity rating. Bridge rectifiers of this specification are essential in power supply circuits, industrial equipment, and AC-to-DC conversion applications where reliable full-wave rectification is required. Identifying equivalent and substitute parts ensures design flexibility, supply chain continuity, and procurement optimization while maintaining electrical and mechanical compatibility.

Substiute Parts

KBU807G

Taiwan Semiconductor CorporationIn Stock: 1312KBU807G Datasheet

Current PartRFQ

KBU807G

Taiwan Semiconductor CorporationIn Stock: 1312KBU807G Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of bridge rectifier diodes is determined by strict equivalence across electrical and mechanical parameters. The KBU807G operates within defined specifications that establish the substitution criteria:

Critical Electrical Parameters:

• Voltage - Peak Reverse (Max): 1 kV
• Current - Average Rectified (Io): 8 A
• Voltage - Forward (Vf) (Max) @ If: 1.1 V @ 8 A
• Current - Reverse Leakage @ Vr: 5 µA @ 1000 V

Critical Mechanical Parameters:

• Mounting Type: Through Hole
• Package / Case: 4-SIP, KBU

Compliance Requirements:

• RoHS3 Compliant
• REACH Unaffected
• Moisture Sensitivity Level: 1 (Unlimited)

A substitute part must match all electrical specifications within the stated tolerances, maintain identical mounting type and package configuration, and satisfy all regulatory compliance requirements. Parts that deviate from any of these parameters are not suitable substitutes and will result in functional or mechanical incompatibility.

Parameter Comparison

Engineering Selection Recommendations

The KBU807G bridge rectifier is an active product with full regulatory compliance across RoHS3 and REACH standards. When selecting equivalent or substitute parts, the following engineering criteria apply:

Product Status Consideration: Both the main part and substitute must maintain active product status to ensure ongoing manufacturer support, availability, and compliance with current environmental regulations.

Compliance Verification: All substitute parts must carry identical RoHS3 compliance certification and REACH unaffected status. This ensures that the component meets current and future regulatory requirements for electronic equipment manufacturing and distribution.

Moisture Sensitivity Alignment: The MSL rating of 1 (Unlimited) indicates no moisture sensitivity constraints. Substitute parts must maintain this classification to eliminate moisture-related handling and storage requirements.

Electrical and Mechanical Equivalence: Direct substitution is only valid when all electrical parameters (voltage, current, forward voltage drop, and reverse leakage) and mechanical parameters (mounting type and package configuration) are identical. Any deviation in these specifications results in functional incompatibility or circuit performance degradation.

Supply Chain Continuity: When the primary part becomes unavailable, substitute parts with identical specifications from the same manufacturer ensure seamless integration without design modification or circuit re-qualification.

Frequently Asked Questions (FAQ)

Q: What defines a valid substitute for the KBU807G bridge rectifier?

A: A valid substitute must match all electrical specifications (1 kV peak reverse voltage, 8 A average rectified current, 1.1 V forward voltage drop at 8 A, and 5 µA reverse leakage at 1000 V), maintain identical through-hole mounting type and 4-SIP KBU package configuration, and carry RoHS3 compliance and REACH unaffected status.

Q: Can a bridge rectifier with higher voltage or current rating be used as a substitute?

A: No. While higher-rated components may function in the circuit, they are not equivalent substitutes. Substitution requires exact electrical specification matching. Using over-rated components introduces unnecessary cost and may alter circuit performance characteristics.

Q: Are there any packaging considerations when substituting the KBU807G?

A: Yes. The KBU807G uses a 4-SIP through-hole package. Any substitute must use the identical package configuration to ensure mechanical compatibility with the printed circuit board layout and component placement equipment.

Q: What is the significance of the RoHS3 compliance requirement?

A: RoHS3 compliance ensures the component meets current European Union and equivalent regulatory standards for hazardous substance restrictions. All substitutes must carry identical RoHS3 certification to maintain compliance with equipment manufacturing and distribution regulations.

Q: Does the MSL rating of 1 affect substitute selection?

A: No. An MSL rating of 1 (Unlimited) indicates the component has no moisture sensitivity constraints. Substitute parts must maintain this same MSL classification, which simplifies handling and storage requirements.

Q: Can substitute parts from different manufacturers be used?

A: Substitute parts must match all electrical and mechanical specifications regardless of manufacturer. However, the provided data indicates the KBU807G substitute is from the same manufacturer (Taiwan Semiconductor Corporation), ensuring design consistency and performance predictability.

Q: What should be verified before implementing a substitute part in production?

A: Verify that the substitute part matches all electrical parameters, maintains identical package and mounting specifications, carries required compliance certifications (RoHS3 and REACH status), and is listed as an active product by the manufacturer.