DB103SP-HF Bridge Rectifier Equivalent & Substitute Parts

Part Overview

The DB103SP-HF is a single-phase bridge rectifier manufactured by Comchip Technology, rated for 200 V peak reverse voltage and 1 A average rectified current. This component is classified as obsolete, indicating discontinuation from the manufacturer. Identification of equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or repair requirements for applications utilizing this bridge rectifier topology.

Substiute Parts

DB103SP-HF

Comchip TechnologyIn Stock: 980DB103SP-HF Datasheet

Current PartRFQ

DB103S-HF

Comchip TechnologyIn Stock: 933DB103S-HF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DB103SP-HF is determined by electrical and mechanical parameter equivalence across the following criteria:

Primary Substitution Criteria:

• Diode Type: Single Phase bridge rectifier configuration
• Voltage Rating: 200 V peak reverse voltage (Vrrm)
• Current Rating: 1 A average rectified current (Io)
• Forward Voltage: 1.1 V maximum at 1 A forward current
• Reverse Leakage: 10 µA maximum at 200 V reverse voltage
• Temperature Range: -55°C to 150°C operating junction temperature
• Mounting Technology: Surface mount assembly
• Package Type: 4-SMD, Gull Wing configuration (DBS package)

The primary manufacturer-recommended substitute is the DB103S-HF from Comchip Technology, which maintains identical electrical specifications and package configuration while offering active product status. Secondary substitutes (DF02S-E3/77, DF02SA-E3/77, DF02S1) are functionally equivalent alternatives from the same manufacturer family, meeting all specified electrical and mechanical parameters.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: DB103S-HF

The DB103S-HF is the manufacturer-recommended direct substitute for the obsolete DB103SP-HF. This part maintains complete electrical and mechanical equivalence while offering active product status from Comchip Technology. Selection of the DB103S-HF ensures continued availability, manufacturing support, and compliance with current component sourcing standards. Current inventory availability is 892 pieces.

Secondary Alternatives: DF02S-E3/77, DF02SA-E3/77, DF02S1

These alternative part numbers from Comchip Technology provide functional equivalence across all specified electrical parameters and package configuration. These options are suitable for applications where the primary substitute is unavailable or where design flexibility permits alternative part number selection within the same manufacturer family.

Compliance and Certification

All substitute parts maintain identical ECCN (EAR99) and HTSUS (8541.10.0080) classifications as the original DB103SP-HF, ensuring regulatory compliance for export and tariff purposes.

Frequently Asked Questions (FAQ)

Q: Can the DB103S-HF be used as a direct replacement for the DB103SP-HF?

A: Yes. The DB103S-HF is the manufacturer-recommended substitute and provides complete electrical and mechanical equivalence. All key parameters including voltage rating, current rating, forward voltage, reverse leakage, temperature range, and package configuration are identical.

Q: What is the primary difference between the DB103SP-HF and DB103S-HF?

A: The DB103SP-HF is classified as obsolete, while the DB103S-HF maintains active product status. Both parts are electrically and mechanically identical, with the DB103S-HF offering continued manufacturing support and supply chain availability.

Q: Are the DF02S-E3/77, DF02SA-E3/77, and DF02S1 parts interchangeable with the DB103SP-HF?

A: Yes. These parts meet all specified electrical parameters (200 V peak reverse voltage, 1 A average rectified current, 1.1 V forward voltage, 10 µA reverse leakage) and share the same 4-SMD Gull Wing package configuration. They are functionally equivalent alternatives within the Comchip Technology product family.

Q: Does package compatibility affect substitution?

A: All substitute parts utilize the 4-SMD Gull Wing (DBS) package configuration, ensuring mechanical and footprint compatibility with the original DB103SP-HF. No PCB layout modifications are required.

Q: Are there any temperature range limitations when substituting these parts?

A: No. All substitute parts maintain the identical operating temperature range of -55°C to 150°C, ensuring thermal performance equivalence across all specified operating conditions.

Q: What inventory status should be considered when selecting a substitute?

A: The DB103S-HF currently has 892 pieces in stock. The DF02S-E3/77, DF02SA-E3/77, and DF02S1 alternatives should be evaluated based on current availability through your component supplier.

Q: Do the substitute parts carry the same regulatory classifications?

A: Yes. All substitute parts maintain identical ECCN (EAR99) and HTSUS (8541.10.0080) classifications, ensuring consistent regulatory treatment for procurement and export compliance.