DBLS102G Bridge Rectifier Equivalent & Substitute Parts

Part Overview

The DBLS102G is a single-phase bridge rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 100 V peak reverse voltage and 1 A average rectified current. This component is classified as an active product in surface mount configuration with 4-SMD Gull Wing packaging. Bridge rectifiers of this specification are essential in power supply circuits for AC-to-DC conversion applications. Substitute parts become necessary due to inventory constraints, manufacturing discontinuation, or supply chain requirements while maintaining electrical and mechanical compatibility.

Substiute Parts

DBLS102G

Taiwan Semiconductor CorporationIn Stock: 6494DBLS102G Datasheet

Current PartRFQ

DF01S-E3/77

Vishay General Semiconductor - Diodes DivisionIn Stock: 10251DF01S-E3/77 Datasheet

Parametric EquivalentRFQ

DF01S1

Fairchild SemiconductorIn Stock: 3009DF01S1 Datasheet

Parametric EquivalentRFQ

DF01SA-E3/77

Vishay General Semiconductor - Diodes DivisionIn Stock: 3189DF01SA-E3/77 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DBLS102G is determined by strict equivalence across the following critical parameters:

Electrical Parameters (Must Match):

• Voltage - Peak Reverse (Max): 100 V
• Current - Average Rectified (Io): 1 A
• Diode Type: Single Phase
• Technology: Standard
• Operating Temperature Range: -55°C to 150°C

Mechanical Parameters (Must Match):

• Mounting Type: Surface Mount
• Package / Case: 4-SMD, Gull Wing

Compliance Parameters (Must Match):

• RoHS Status: ROHS3 Compliant
• REACH Status: REACH Unaffected

The substitute parts DF01SA-E3/77, DF01S1, and DF01S-E3/77 satisfy all mandatory electrical and mechanical requirements. Variations in forward voltage measurement conditions (Vf @ If) and reverse leakage current do not disqualify substitution when the maximum ratings remain within specification. Packaging format differences (Tape & Reel versus Cut Tape versus Bulk) do not affect electrical compatibility but may impact procurement and assembly workflows.

Parameter Comparison

Engineering Selection Recommendations

All three substitute parts—DF01SA-E3/77, DF01S-E3/77, and DF01S1—are electrically and mechanically equivalent to the DBLS102G for single-phase bridge rectifier applications at 100 V and 1 A ratings.

DF01SA-E3/77 (Vishay): This part maintains identical packaging format (Tape & Reel) to the main part, ensuring compatibility with automated assembly processes. RoHS3 compliance and REACH Unaffected status are confirmed. Reverse leakage current is 5 µA, within acceptable limits for standard bridge rectifier applications.

DF01S-E3/77 (Vishay): This part is supplied in Cut Tape and Digi-Reel format, which may require process adjustment for automated pick-and-place equipment. RoHS3 compliance and REACH Unaffected status are confirmed. Inventory availability is highest among substitutes at 10,200 pieces.

DF01S1 (Fairchild Semiconductor): This part is supplied in Bulk packaging, requiring manual handling or reel conversion for surface mount assembly. RoHS and REACH compliance status is not specified in available documentation. Reverse leakage current is 3 µA, the lowest among all options.

Selection should prioritize packaging format alignment with existing assembly infrastructure and confirmed compliance documentation requirements.

Frequently Asked Questions (FAQ)

Q: Can DF01SA-E3/77, DF01S-E3/77, and DF01S1 be used interchangeably with DBLS102G in the same circuit?

A: Yes. All three parts meet the electrical specifications of 100 V peak reverse voltage, 1 A average rectified current, and -55°C to 150°C operating temperature range. They share identical 4-SMD Gull Wing surface mount packaging and single-phase bridge rectifier topology.

Q: What is the significance of the different forward voltage measurement conditions (Vf @ 15 A versus Vf @ 1 A)?

A: The forward voltage specification reflects the measurement current used during characterization. The DBLS102G specifies Vf at 15 A, while substitutes specify Vf at 1 A. Both measurements confirm the maximum forward voltage does not exceed 1.1 V, which is the critical parameter for circuit design. The measurement current difference does not affect substitution eligibility.

Q: Does the difference in reverse leakage current (2 µA for DBLS102G versus 3–5 µA for substitutes) impact circuit performance?

A: Reverse leakage current variations within this range are typical for standard bridge rectifier technology and do not affect circuit functionality in standard power supply applications. All values remain well within acceptable limits for 100 V, 1 A rectifier circuits.

Q: Are there packaging format considerations when selecting a substitute?

A: Yes. The DBLS102G and DF01SA-E3/77 are supplied in Tape & Reel format, compatible with standard automated assembly equipment. The DF01S-E3/77 uses Cut Tape and Digi-Reel format, which may require process adjustment. The DF01S1 is supplied in Bulk, requiring manual handling or reel conversion. Packaging selection should align with existing assembly capabilities.

Q: Is RoHS3 compliance confirmed for all substitute parts?

A: RoHS3 compliance is confirmed for DF01SA-E3/77 and DF01S-E3/77. Compliance status for DF01S1 is not specified in available documentation and should be verified with the supplier if RoHS certification is a requirement.

Q: Can these parts be used in applications requiring REACH compliance?

A: DF01SA-E3/77 and DF01S-E3/77 are confirmed REACH Unaffected. REACH status for DF01S1 is not specified and should be confirmed with the supplier if REACH compliance is mandatory.