UD3KB20-BP Equivalent & Substitute Parts Reference

Part Overview

The UD3KB20-BP, manufactured by Micro Commercial Co, is a single-phase standard bridge rectifier rated for 200 V peak reverse voltage and 3 A average rectified current. It features through-hole mounting in a D3K (4-SIP) package. The part status is designated as "Not For New Designs," necessitating the identification of equivalent or substitute bridge rectifiers for future product development and ongoing maintenance of existing systems.

Substiute Parts

UD3KB20-BP

Micro Commercial CoIn Stock: 930UD3KB20-BP Datasheet

Current PartRFQ

KBP302G

SMC Diode SolutionsIn Stock: 1116KBP302G Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the UD3KB20-BP bridge rectifier is determined by matching the following key parameters:

• Diode type: Single Phase
• Technology: Standard
• Voltage - Peak Reverse (Max): 200 V
• Current - Average Rectified (Io): 3 A
• Voltage - Forward (Vf) (Max) @ If
• Current - Reverse Leakage @ Vr
• Operating temperature range
• Mounting type: Through Hole
• Package / Case and Supplier Device Package considerations

These parameters directly impact electrical performance, mechanical compatibility, and suitability as a substitute in existing designs.

Parameter Comparison

Engineering Selection Recommendations

The UD3KB20-BP is classified as "Not For New Designs," indicating it should not be specified for ongoing or future design work. KBP302G from SMC Diode Solutions is designated as "Active" and holds ROHS3 compliance with an unlimited moisture sensitivity level (MSL 1). Only compliance and product status (active versus not recommended for new designs) criteria are considered in this assessment.

Frequently Asked Questions (FAQ)

Q1: What are the primary criteria for selecting a substitute for the UD3KB20-BP?
A1: Substitute selection requires exact or closely matched values for single-phase diode type, standard technology, 200 V maximum peak reverse voltage, 3 A average rectified current, forward voltage characteristics, reverse leakage current, identical or compatible mounting type, and package.

Q2: Is the package of KBP302G directly compatible with UD3KB20-BP?
A2: UD3KB20-BP uses a 4-SIP (D3K) package, whereas KBP302G uses a 4-ESIP (KBP) package. Both are through-hole types, but the physical dimensions and pin configuration should be compared based solely on the given package information.

Q3: Are there differences in compliance between the two parts?
A3: KBP302G is specified as ROHS3 Compliant and has an unlimited moisture sensitivity level, while the compliance information for UD3KB20-BP includes REACH unaffected status.

Q4: Can both parts operate across the same temperature range?
A4: Both UD3KB20-BP and KBP302G support an operating junction temperature range of -55°C to 150°C, based on the provided specifications.

Q5: Is there a difference in reverse leakage current?
A5: The KBP302G has a specified reverse leakage current of 5 µA @ 200 V, whereas UD3KB20-BP specifies 10 µA @ 200 V. Both values fall within similar operational expectations for the category.