DB203-BP Bridge Rectifier Single Phase Standard 200V Through Hole Equivalent & Substitute Parts

Part Overview

The DB203-BP is a single-phase bridge rectifier manufactured by Micro Commercial Co, designed for 200V peak reverse voltage applications with 2A average rectified current capacity. This component features a through-hole 4-EDIP package and operates across a temperature range of -55°C to 150°C. The DB203-BP is classified as obsolete, making identification of equivalent substitute parts essential for ongoing design support, maintenance, and production continuity in applications requiring this specific rectifier topology.

Substiute Parts

DB203-BP

Micro Commercial CoIn Stock: 1141DB203-BP Datasheet

Current PartRFQ

DB207-BP

Micro Commercial CoIn Stock: 7760DB207-BP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DB203-BP is determined by the following critical parameters that must remain compatible:

Mandatory Compatibility Parameters:

• Diode Type: Single Phase bridge rectifier topology
• Mounting Type: Through Hole
• Package / Case: 4-EDIP (0.321", 8.15mm)
• Supplier Device Package: DB-1
• Current - Average Rectified (Io): 2 A
• Voltage - Forward (Vf) (Max) @ If: 1.1 V @ 2 A
• Operating Temperature Range: -55°C ~ 150°C (TJ)

Allowable Variation Parameters:

• Voltage - Peak Reverse (Max): May be equal to or greater than 200V
• Current - Reverse Leakage @ Vr: May be equal to or lower than 10 µA at the respective voltage rating

The DB207-BP qualifies as a direct substitute because it maintains identical mechanical packaging, current rating, forward voltage characteristics, and operating temperature range. The DB207-BP provides enhanced voltage rating (1 kV versus 200V), which is acceptable in applications designed for the DB203-BP, as higher voltage-rated components operate safely in lower-voltage circuits.

Parameter Comparison

Engineering Selection Recommendations

The DB207-BP is the manufacturer-recommended substitute for the obsolete DB203-BP. Selection of the DB207-BP is supported by the following engineering factors:

Product Status Consideration: The DB203-BP is classified as obsolete, whereas the DB207-BP maintains active product status with confirmed inventory availability (7700 pcs in stock). This ensures long-term supply chain reliability and access to technical documentation.

Electrical Compatibility: The DB207-BP maintains identical electrical performance at the 2A operating point, with matching forward voltage characteristics (1.1V @ 2A) and operating temperature range (-55°C to 150°C). The elevated peak reverse voltage rating (1 kV versus 200V) presents no functional limitation in applications originally designed for 200V operation.

Mechanical and Packaging Equivalence: Both components utilize identical 4-EDIP through-hole packaging with 0.321" (8.15mm) spacing, ensuring direct PCB footprint compatibility without layout modifications.

Regulatory and Compliance Alignment: Both parts maintain identical REACH status (REACH Unaffected) and ECCN classification (EAR99), preserving compliance requirements across design transitions.

Frequently Asked Questions (FAQ)

Q: Can the DB207-BP be used as a direct replacement for the DB203-BP without PCB modifications?

A: Yes. The DB207-BP is mechanically and electrically compatible with the DB203-BP. Both components share identical 4-EDIP through-hole packaging dimensions (0.321", 8.15mm) and pinout configuration, enabling direct substitution without PCB layout changes.

Q: Why does the DB207-BP have a higher voltage rating (1 kV) than the DB203-BP (200V)?

A: The DB207-BP is part of the same DB-series bridge rectifier family with enhanced voltage specifications. Higher voltage-rated rectifiers operate safely in lower-voltage applications without performance degradation. The 1 kV rating provides design margin and component availability advantages while maintaining identical current and thermal characteristics.

Q: Are the forward voltage characteristics identical between these parts?

A: Yes. Both the DB203-BP and DB207-BP specify a maximum forward voltage of 1.1V at 2A operating current. This identical specification ensures equivalent power dissipation and thermal behavior in rectification circuits.

Q: What is the significance of the DB203-BP being obsolete?

A: Obsolete status indicates the DB203-BP is no longer manufactured or supported by Micro Commercial Co. The DB207-BP, with active product status and confirmed inventory, provides continuity for applications requiring this rectifier topology and ensures access to current technical documentation and supply chain support.

Q: Are there any temperature range differences between these components?

A: No. Both the DB203-BP and DB207-BP operate across the identical temperature range of -55°C to 150°C (junction temperature), ensuring equivalent thermal performance in all operating environments.

Q: Do these components have the same reverse leakage characteristics?

A: Both components specify 10 µA reverse leakage current. The DB203-BP measures this at 200V, while the DB207-BP measures at 1000V. The DB207-BP's leakage specification at higher voltage demonstrates superior insulation characteristics while maintaining equivalent performance at the DB203-BP's original voltage rating.