DB102S-HF Bridge Rectifier Equivalent & Substitute Parts

Part Overview

The DB102S-HF is a single-phase bridge rectifier diode manufactured by Comchip Technology, rated for 100 V peak reverse voltage and 1 A average rectified current. This component is classified as Active product status and is designed for surface mount applications in 4-SMD, Gull Wing package configuration. Bridge rectifier diodes are essential components in AC-to-DC power conversion circuits, and equivalent substitutes are identified based on matching electrical specifications and mechanical compatibility to ensure seamless integration into existing designs.

Key Parameters

Parameter	Value
Diode Type	Single Phase
Technology	Standard
Voltage - Peak Reverse (Max)	100 V
Current - Average Rectified (Io)	1 A
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 1 A
Operating Temperature Range	-55°C ~ 150°C (TJ)
Mounting Type	Surface Mount
Package / Case	4-SMD, Gull Wing

Substitute Part Grouping Explanation

Substitute parts for the DB102S-HF are qualified based on the following criteria:

Electrical Parameter Matching:

Voltage - Peak Reverse (Max): 100 V
Current - Average Rectified (Io): 1 A
Voltage - Forward (Vf) (Max) @ If: 1.1 V @ 1 A
Operating Temperature Range: -55°C ~ 150°C (TJ)

Mechanical Compatibility:

Mounting Type: Surface Mount
Package / Case: 4-SMD, Gull Wing
Diode Type: Single Phase
Technology: Standard

All identified substitute parts meet or exceed these core parameters, ensuring functional and mechanical interchangeability within the specified electrical operating envelope.

Parameter Comparison

Parameter	DB102S-HF (Comchip)	DF01S-E3/77 (Vishay)	DF01S1 (Fairchild)	DF01SA-E3/77 (Vishay)
Diode Type	Single Phase	Single Phase	Single Phase	Single Phase
Technology	Standard	Standard	Standard	Standard
Voltage - Peak Reverse (Max)	100 V	100 V	100 V	100 V
Current - Average Rectified (Io)	1 A	1 A	1 A	1 A
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 1 A	1.1 V @ 1 A	1.1 V @ 1 A	1.1 V @ 1 A
Current - Reverse Leakage @ Vr	10 µA @ 100 V	5 µA @ 100 V	3 µA @ 100 V	5 µA @ 100 V
Operating Temperature Range	-55°C ~ 150°C (TJ)	-55°C ~ 150°C (TJ)	-55°C ~ 150°C (TJ)	-55°C ~ 150°C (TJ)
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	4-SMD, Gull Wing	4-SMD, Gull Wing	4-SMD, Gull Wing	4-SMD, Gull Wing
Supplier Device Package	DBS	DFS	4-SDIP	DFS

Engineering Selection Recommendations

DF01S-E3/77 (Vishay General Semiconductor - Diodes Division)

This substitute is qualified as a parametric equivalent with ROHS3 compliance and REACH Unaffected status. The part features identical electrical specifications with lower reverse leakage current (5 µA @ 100 V versus 10 µA @ 100 V), indicating superior leakage performance. Moisture Sensitivity Level (MSL) rating of 1 (Unlimited) provides extended shelf life and handling flexibility. Available in Cut Tape (CT) & Digi-Reel® packaging with 10,200 pieces in stock.

DF01S1 (Fairchild Semiconductor)

This substitute meets all core electrical and mechanical parameters with the lowest reverse leakage current specification (3 µA @ 100 V). The part is supplied in Bulk packaging and maintains Active product status. Inventory availability is 2,921 pieces.

DF01SA-E3/77 (Vishay General Semiconductor - Diodes Division)

This substitute is qualified as a parametric equivalent with ROHS3 compliance and REACH Unaffected status. Electrical specifications are identical to DF01S-E3/77 with 5 µA reverse leakage current. Moisture Sensitivity Level (MSL) rating of 1 (Unlimited) ensures reliable handling. Available in Tape & Reel (TR) packaging with 3,102 pieces in stock.

All three substitute parts maintain Active product status and are suitable for direct replacement in applications requiring 100 V, 1 A single-phase bridge rectifier functionality.

Frequently Asked Questions (FAQ)

Q: What are the primary criteria for substituting the DB102S-HF?

A: Substitutes must match the following specifications: 100 V peak reverse voltage, 1 A average rectified current, 1.1 V maximum forward voltage at 1 A, operating temperature range of -55°C to 150°C, surface mount mounting type, and 4-SMD Gull Wing package configuration.

Q: Are the substitute parts mechanically compatible with the DB102S-HF?

A: Yes. All substitute parts feature identical mounting type (Surface Mount) and package configuration (4-SMD, Gull Wing), ensuring mechanical compatibility with existing PCB layouts and assembly processes.

Q: What is the difference between the packaging options for the substitute parts?

A: DF01S-E3/77 is supplied in Cut Tape (CT) & Digi-Reel® format, DF01S1 is supplied in Bulk, and DF01SA-E3/77 is supplied in Tape & Reel (TR). These packaging differences affect handling, storage, and automated assembly compatibility but do not impact electrical or mechanical performance.

Q: How do the reverse leakage current specifications compare?

A: The DB102S-HF specifies 10 µA @ 100 V reverse leakage. DF01S-E3/77 and DF01SA-E3/77 specify 5 µA @ 100 V, while DF01S1 specifies 3 µA @ 100 V. Lower reverse leakage current indicates superior performance characteristics.

Q: Are all substitute parts compliant with environmental regulations?

A: DF01S-E3/77 and DF01SA-E3/77 are ROHS3 Compliant and REACH Unaffected. DF01S1 compliance information is not provided in the available specifications.

Q: What is the Moisture Sensitivity Level (MSL) for the substitute parts?

A: DF01S-E3/77 and DF01SA-E3/77 both carry MSL rating of 1 (Unlimited), indicating no moisture sensitivity restrictions. MSL information for DF01S1 is not provided in the available specifications.

Q: Can these parts be used interchangeably in production?

A: Yes, all substitute parts meet the electrical and mechanical requirements for direct replacement. Selection should consider packaging format requirements, compliance certifications, and inventory availability for your specific application.

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