UD4KB10-BP Bridge Rectifier Single Phase 100V 4A Equivalent & Substitute Parts

Part Overview

The UD4KB10-BP is a single-phase bridge rectifier manufactured by Micro Commercial Co, rated for 100V peak reverse voltage and 4A average rectified current. This component is classified as not for new designs, indicating it has been superseded in the manufacturer's product line. The part is supplied in bulk packaging with a through-hole D3K package configuration. Identification of equivalent and substitute parts is necessary for applications requiring continued sourcing, design updates, or inventory optimization where the original part number is unavailable or discontinued.

Substiute Parts

UD4KB10-BP

Micro Commercial CoIn Stock: 1084UD4KB10-BP Datasheet

Current PartRFQ

UG6KB10

SMC Diode SolutionsIn Stock: 934UG6KB10 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the UD4KB10-BP is determined by the following critical parameters:

Mandatory Matching Criteria:

• Diode Type: Single Phase
• Technology: Standard
• Voltage - Peak Reverse (Max): 100 V
• Mounting Type: Through Hole
• Supplier Device Package: D3K

Allowable Variation Criteria:

• Current - Average Rectified (Io): Substitute parts must meet or exceed 4 A
• Voltage - Forward (Vf): Substitute parts must not exceed the specified forward voltage at their rated current
• Current - Reverse Leakage: Lower values indicate improved performance
• Operating Temperature Range: Must encompass or match the specified range
• Package / Case: Physical compatibility with D3K footprint

The UG6KB10 manufactured by SMC Diode Solutions satisfies all mandatory matching criteria and provides enhanced current rating (6 A versus 4 A), making it suitable for direct substitution in applications where the original part is unavailable.

Parameter Comparison

Engineering Selection Recommendations

UD4KB10-BP Status: Not For New Designs. This designation indicates the part has been discontinued or superseded by the manufacturer. New designs should not incorporate this part number.

UG6KB10 Status: Active. This part is in active production by SMC Diode Solutions and represents the current equivalent for the UD4KB10-BP.

Compliance Considerations:

• UD4KB10-BP: REACH Unaffected
• UG6KB10: REACH Affected, RoHS3 Compliant, Moisture Sensitivity Level 1 (Unlimited)

The UG6KB10 is the direct substitute for the UD4KB10-BP. It maintains electrical compatibility across all critical parameters while offering improved performance characteristics (higher current rating and lower reverse leakage). The UG6KB10 is suitable for both replacement applications and new designs requiring a 100V single-phase bridge rectifier in D3K package configuration.

Frequently Asked Questions (FAQ)

Q: Can the UG6KB10 directly replace the UD4KB10-BP in existing applications?

A: Yes. The UG6KB10 maintains identical voltage ratings, operating temperature range, and package footprint. The higher current rating (6 A versus 4 A) and lower reverse leakage current (5 µA versus 10 µA) make it functionally compatible and electrically superior for direct substitution.

Q: What is the difference between the 4-SIP and 4-ESIP package designations?

A: Both packages use the D3K supplier device package footprint and are through-hole mounted. The designations reflect minor variations in package construction by different manufacturers, but both are mechanically and electrically compatible in D3K footprint applications.

Q: Why is the UD4KB10-BP marked as "Not For New Designs"?

A: This status indicates the part has been discontinued or superseded by the manufacturer. New product designs should specify the UG6KB10 or equivalent active parts to ensure long-term availability and supply chain continuity.

Q: Are there any compliance differences between the two parts?

A: The UD4KB10-BP is REACH Unaffected, while the UG6KB10 is REACH Affected and RoHS3 Compliant. Applications subject to REACH or RoHS regulations should verify the UG6KB10 meets their specific compliance requirements.

Q: What is the significance of the lower reverse leakage current in the UG6KB10?

A: Lower reverse leakage current (5 µA versus 10 µA) indicates improved diode quality and reduced parasitic current flow in reverse bias conditions. This results in lower power dissipation and improved circuit performance, particularly in precision applications.

Q: Can the UD4KB10-BP be used in new designs if inventory is available?

A: No. The "Not For New Designs" status is a manufacturer directive indicating the part is obsolete. New designs must specify active parts such as the UG6KB10 to ensure manufacturability, support, and compliance with current standards.