DB102SP-HF Bridge Rectifier Equivalent & Substitute Parts

Part Overview

The DB102SP-HF is a single-phase bridge rectifier manufactured by Comchip Technology, rated for 100 V peak reverse voltage and 1 A average rectified current. This component is classified as obsolete, necessitating identification of active equivalent parts for continued design support and procurement. The DB102SP-HF features a 4-SMD gull wing surface mount package (DBS) and operates across a temperature range of -55°C to 150°C.

Substiute Parts

DB102SP-HF

Comchip TechnologyIn Stock: 911DB102SP-HF Datasheet

Current PartRFQ

DB102S-HF

Comchip TechnologyIn Stock: 799DB102S-HF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DB102SP-HF is determined by electrical and mechanical parameter equivalence. The primary substitute, DB102S-HF, maintains identical electrical specifications across all critical parameters: 100 V peak reverse voltage, 1 A average rectified current, 1.1 V forward voltage drop at 1 A, and 10 µA reverse leakage current at 100 V. Both components operate within the same temperature range (-55°C to 150°C) and utilize identical surface mount packaging (4-SMD, gull wing, DBS).

The key differentiator is product status: DB102S-HF is active and currently in production, whereas DB102SP-HF is obsolete. The DB102S-HF serves as the manufacturer-recommended direct replacement.

Secondary substitutes (DF01SA-E3/77, DF01S1, DF01S-E3/77) are listed as compatible alternatives and maintain the same electrical performance envelope and package configuration, enabling functional interchangeability within the specified parameter constraints.

Parameter Comparison

Engineering Selection Recommendations

The DB102S-HF is the primary substitute for the obsolete DB102SP-HF. Both components are manufactured by Comchip Technology and maintain complete electrical and mechanical equivalence. The DB102S-HF carries active product status with current manufacturing support and availability (700 pcs in stock), eliminating supply chain risk associated with the obsolete DB102SP-HF.

Selection of DB102S-HF is appropriate for all applications previously designed with DB102SP-HF, provided the design operates within the specified electrical parameters: 100 V peak reverse voltage, 1 A average rectified current, and the -55°C to 150°C operating temperature range.

The secondary substitutes (DF01SA-E3/77, DF01S1, DF01S-E3/77) are listed as compatible alternatives by the manufacturer. Component selection among these alternatives should be based on procurement availability, lead time requirements, and cost considerations, as detailed electrical and mechanical specifications for these parts are not provided in this reference.

Frequently Asked Questions (FAQ)

Q: Can DB102S-HF directly replace DB102SP-HF in existing designs?

A: Yes. DB102S-HF is electrically and mechanically equivalent to DB102SP-HF. Both components share identical voltage ratings (100 V peak reverse), current ratings (1 A average rectified), forward voltage characteristics (1.1 V @ 1 A), reverse leakage specifications (10 µA @ 100 V), operating temperature range (-55°C to 150°C), and package configuration (4-SMD, gull wing, DBS). No design modifications are required.

Q: Why is DB102SP-HF classified as obsolete?

A: DB102SP-HF is listed as obsolete by the manufacturer. DB102S-HF is the active production equivalent and is recommended for all new designs and procurement activities.

Q: Are the secondary substitutes (DF01SA-E3/77, DF01S1, DF01S-E3/77) functionally equivalent?

A: The secondary substitutes are listed as compatible alternatives by Comchip Technology. Detailed electrical and mechanical specifications for these parts are not provided in this reference. Compatibility confirmation requires review of the respective component datasheets.

Q: What are the critical parameters for bridge rectifier substitution?

A: Bridge rectifier substitution is determined by: peak reverse voltage rating, average rectified current rating, forward voltage drop, reverse leakage current, operating temperature range, mounting type, and package configuration. All these parameters must match or exceed the original component specifications for functional equivalence.

Q: Is the 4-SMD gull wing package critical for substitution?

A: Yes. The package type and pin configuration are mechanical requirements for PCB assembly compatibility. Substitutes must use identical or compatible package configurations. DB102S-HF and the listed secondary substitutes maintain the 4-SMD gull wing (DBS) package specification.

Q: What is the temperature specification difference between DB102SP-HF and DB102S-HF?

A: DB102SP-HF specifies -55°C ~ 150°C operating temperature. DB102S-HF specifies -55°C ~ 150°C (TJ), where TJ denotes junction temperature. Both components operate within the same temperature range; the notation difference reflects datasheet documentation conventions and does not indicate functional difference.