DBLS103G Bridge Rectifier Equivalent & Substitute Parts

Part Overview

The DBLS103G is a single-phase bridge rectifier manufactured by Taiwan Semiconductor Corporation, rated for 200 V peak reverse voltage and 1 A average rectified current. This component is classified as an active product with full RoHS3 compliance and unlimited moisture sensitivity level (MSL 1). Bridge rectifiers of this specification are used in AC-to-DC conversion applications requiring compact surface-mount packaging. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to component availability, supply chain considerations, or design standardization across manufacturing batches.

Substiute Parts

DBLS103G

Taiwan Semiconductor CorporationIn Stock: 1021DBLS103G Datasheet

Current PartRFQ

DF02S-E3/77

Vishay General Semiconductor - Diodes DivisionIn Stock: 30318DF02S-E3/77 Datasheet

Parametric EquivalentRFQ

DF02S1

Fairchild SemiconductorIn Stock: 10255DF02S1 Datasheet

Parametric EquivalentRFQ

DF02SA-E3/77

Vishay General Semiconductor - Diodes DivisionIn Stock: 2131DF02SA-E3/77 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DBLS103G is determined by strict equivalence across the following electrical and mechanical parameters:

Critical Matching Parameters:

• Voltage - Peak Reverse (Max): 200 V
• Current - Average Rectified (Io): 1 A
• Voltage - Forward (Vf) (Max) @ If: 1.1 V @ 1 A
• Diode Type: Single Phase
• Technology: Standard
• Operating Temperature Range: -55°C to 150°C (TJ)
• Mounting Type: Surface Mount
• Package / Case: 4-SMD, Gull Wing

All identified substitute parts meet these electrical specifications and mechanical requirements. Variations in reverse leakage current (within the range of 2–5 µA @ 200 V) and packaging format (Cut Tape, Tape & Reel, or Bulk) do not affect functional equivalence for standard bridge rectifier applications. All substitute parts maintain RoHS3 compliance and MSL 1 rating.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed are active products with confirmed inventory availability. Selection between DBLS103G and its equivalents is based on the following factors:

Compliance & Certification:

• DBLS103G, DF02S-E3/77, and DF02SA-E3/77 carry explicit RoHS3 compliance and MSL 1 ratings, suitable for applications with regulatory compliance requirements.
• DF02S1 (Fairchild) meets electrical specifications but does not specify RoHS or MSL status in the provided data.

Packaging & Supply Format:

• DF02S-E3/77 is supplied in Cut Tape (CT) & Digi-Reel format with 30,300 units in stock, providing maximum availability.
• DF02SA-E3/77 is supplied in Tape & Reel (TR) format with 2,100 units in stock, suitable for automated assembly processes.
• DF02S1 is supplied in Bulk format with 10,200 units in stock.
• DBLS103G is available in 940 units with unspecified packaging format.

Reverse Leakage Characteristics:

• DBLS103G exhibits 2 µA reverse leakage at 200 V, the lowest among all options.
• DF02S1 exhibits 3 µA reverse leakage at 200 V.
• DF02S-E3/77 and DF02SA-E3/77 exhibit 5 µA reverse leakage at 200 V.

All parts are electrically interchangeable for standard single-phase bridge rectifier applications within the specified voltage and current ratings.

Frequently Asked Questions (FAQ)

Q: Can DF02S-E3/77 directly replace DBLS103G in a circuit?

A: Yes. Both parts are rated for 200 V peak reverse voltage, 1 A average rectified current, and 1.1 V forward voltage drop at 1 A. Both use 4-SMD Gull Wing surface-mount packaging and operate across -55°C to 150°C. The difference in reverse leakage current (5 µA versus 2 µA) does not affect functional equivalence in standard rectification applications.

Q: What is the difference between DF02S-E3/77 and DF02SA-E3/77?

A: Both parts are manufactured by Vishay and are electrically identical. The primary difference is packaging format: DF02S-E3/77 is supplied in Cut Tape & Digi-Reel format, while DF02SA-E3/77 is supplied in Tape & Reel format. Selection depends on assembly process requirements and inventory management preferences.

Q: Is DF02S1 suitable for applications requiring RoHS3 compliance?

A: DF02S1 meets all electrical specifications of DBLS103G and operates across the same temperature range. However, RoHS3 compliance status is not specified in the provided data. Applications with explicit RoHS3 requirements should use DBLS103G, DF02S-E3/77, or DF02SA-E3/77.

Q: Does reverse leakage current variation affect circuit performance?

A: Reverse leakage current variation (2–5 µA @ 200 V) is negligible for standard bridge rectifier applications. All listed parts fall within acceptable leakage ranges for single-phase rectification. Selection based on leakage characteristics is not required for typical AC-to-DC conversion circuits.

Q: Are all substitute parts available in the same package format?

A: All parts use 4-SMD Gull Wing surface-mount packaging, ensuring mechanical compatibility on PCBs. However, supply formats differ: DBLS103G packaging format is unspecified, DF02S-E3/77 uses Cut Tape & Digi-Reel, DF02SA-E3/77 uses Tape & Reel, and DF02S1 uses Bulk. Packaging format selection depends on assembly equipment and production volume.

Q: What is the moisture sensitivity level (MSL) significance?

A: DBLS103G, DF02S-E3/77, and DF02SA-E3/77 are rated MSL 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling. This simplifies logistics and reduces storage requirements compared to higher MSL ratings.