DBLS157GHC1G Bridge Rectifier Equivalent & Substitute Parts

Part Overview

The DBLS157GHC1G is a single-phase bridge rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 1 kV peak reverse voltage and 1.5 A average rectified current. This component is classified as Active product status with AEC-Q101 automotive qualification. The device is surface-mounted in a 4-SMD Gull Wing package configuration.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained across the specified parameter range. Alternative sources and packaging formats may be required due to inventory availability, supply chain considerations, or application-specific packaging needs.

Key Parameters

Parameter	Value	Unit
Diode Type	Single Phase	—
Technology	Standard	—
Voltage - Peak Reverse (Max)	1	kV
Current - Average Rectified (Io)	1.5	A
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 1.5 A	—
Current - Reverse Leakage @ Vr	2	µA @ 1000 V
Operating Temperature Range	-55 to 150	°C (TJ)
Mounting Type	Surface Mount	—
Package / Case	4-SMD, Gull Wing	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria:

Voltage - Peak Reverse (Max): 1 kV minimum
Diode Type: Single Phase
Technology: Standard
Mounting Type: Surface Mount
Package / Case: 4-SMD, Gull Wing
Operating Temperature Range: -55°C to 150°C minimum

Current Rating Considerations:

Full equivalents: Current - Average Rectified (Io) = 1.5 A
Reduced-current substitutes: Current - Average Rectified (Io) = 1.0 A (acceptable for applications with lower current demand)

Compliance Requirements:

RoHS3 Compliant status required
Moisture Sensitivity Level (MSL): 1 (Unlimited) preferred

Substitute parts are categorized into two groups: full parametric equivalents matching 1.5 A current rating, and reduced-current alternatives rated at 1.0 A that maintain voltage and temperature specifications.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Voltage - Peak Reverse (Max)	Current - Average Rectified (Io)	Voltage - Forward (Vf) (Max) @ If	Current - Reverse Leakage @ Vr	Operating Temperature	Package / Case	RoHS Status	MSL
DBLS157GHC1G	Taiwan Semiconductor Corporation	1 kV	1.5 A	1.1 V @ 1.5 A	2 µA @ 1000 V	-55 to 150°C	4-SMD, Gull Wing	ROHS3 Compliant	1 (Unlimited)
DF10S	Good-Ark Semiconductor	1 kV	1 A	1.1 V @ 500 mA	5 µA @ 1000 V	-55 to 150°C	4-SMD, Gull Wing	ROHS3 Compliant	1 (Unlimited)
DF10S-E3/45	Vishay General Semiconductor - Diodes Division	1 kV	1 A	1.1 V @ 1 A	5 µA @ 1000 V	-55 to 150°C	4-SMD, Gull Wing	ROHS3 Compliant	1 (Unlimited)
DF10S-E3/77	Vishay General Semiconductor - Diodes Division	1 kV	1 A	1.1 V @ 1 A	5 µA @ 1000 V	-55 to 150°C	4-SMD, Gull Wing	ROHS3 Compliant	1 (Unlimited)
DF10S-T	Diodes Incorporated	1 kV	1 A	1.1 V @ 1 A	10 µA @ 1000 V	-65 to 150°C	4-SMD, Gull Wing	ROHS3 Compliant	1 (Unlimited)
DF10S1	Fairchild Semiconductor	1 kV	1 A	1.1 V @ 1 A	3 µA @ 1 V	-55 to 150°C	4-SMD, Gull Wing	Not Specified	Not Specified
DF1510S-E3/77	Vishay General Semiconductor - Diodes Division	1 kV	1.5 A	1.1 V @ 1.5 A	5 µA @ 1000 V	-55 to 150°C	4-SMD, Gull Wing	ROHS3 Compliant	1 (Unlimited)
DB157S	MDD	1 kV	1.5 A	1 V @ 1.5 A	1 µA @ 1000 V	-55 to 150°C	4-SMD, Gull Wing	ROHS3 Compliant	1 (Unlimited)
DF1510S	HY Electronic (Cayman) Limited	1 kV	1.5 A	1.1 V @ 1.5 A	10 µA @ 1000 V	-55 to 150°C	4-SMD, Gull Wing	ROHS3 Compliant	1 (Unlimited)
DFL1510S-E3/45	Vishay General Semiconductor - Diodes Division	1 kV	1.5 A	1.1 V @ 1.5 A	5 µA @ 1000 V	-55 to 150°C	4-SMD, Gull Wing	ROHS3 Compliant	1 (Unlimited)

Engineering Selection Recommendations

Full Parametric Equivalents (1.5 A Rating):

The following parts maintain complete electrical and mechanical compatibility with the DBLS157GHC1G:

DF1510S-E3/77 (Vishay General Semiconductor - Diodes Division): Matches all primary specifications including 1.5 A current rating, 1 kV voltage rating, and 4-SMD Gull Wing package. ROHS3 compliant with MSL 1. Available in Cut Tape (CT) & Digi-Reel® packaging.
DB157S (MDD): Parametric equivalent with 1.5 A current rating and 1 kV voltage rating. ROHS3 compliant with MSL 1. Forward voltage specification of 1 V @ 1.5 A is lower than the main part, indicating superior performance characteristics.
DF1510S (HY Electronic (Cayman) Limited): Maintains 1.5 A current rating and 1 kV voltage rating in 4-SMD Gull Wing package. ROHS3 compliant with MSL 1. Reverse leakage specification of 10 µA @ 1000 V is higher than the main part.
DFL1510S-E3/45 (Vishay General Semiconductor - Diodes Division): Full parametric equivalent with 1.5 A current rating, 1 kV voltage rating, and matching forward voltage specification of 1.1 V @ 1.5 A. ROHS3 compliant with MSL 1. Available in Tube packaging.

Reduced-Current Substitutes (1.0 A Rating):

The following parts are suitable for applications where current demand does not exceed 1.0 A:

DF10S-E3/77 (Vishay General Semiconductor - Diodes Division): Maintains 1 kV voltage rating and 4-SMD Gull Wing package. ROHS3 compliant with MSL 1. Rated for 1 A average rectified current. Available in Cut Tape (CT) & Digi-Reel® packaging.
DF10S-E3/45 (Vishay General Semiconductor - Diodes Division): Maintains 1 kV voltage rating and 4-SMD Gull Wing package. ROHS3 compliant with MSL 1. Rated for 1 A average rectified current. Available in Tube packaging.
DF10S-T (Diodes Incorporated): Maintains 1 kV voltage rating and 4-SMD Gull Wing package. ROHS3 compliant with MSL 1. Rated for 1 A average rectified current. Operating temperature range extends to -65°C. Available in Tape & Reel (TR) packaging.
DF10S (Good-Ark Semiconductor): Maintains 1 kV voltage rating and 4-SMD Gull Wing package. ROHS3 compliant with MSL 1. Rated for 1 A average rectified current. Available in Cut Tape (CT) & Digi-Reel® and Tape & Reel (TR) packaging.

Compliance Considerations:

All recommended substitutes maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating. The DBLS157GHC1G carries AEC-Q101 automotive qualification; substitute parts should be evaluated for automotive-grade certification requirements in specific applications.

Frequently Asked Questions (FAQ)

Q: Can DF10S-E3/77 be used as a direct replacement for DBLS157GHC1G?

A: DF10S-E3/77 is a reduced-current substitute suitable only for applications where average rectified current does not exceed 1 A. The DBLS157GHC1G is rated for 1.5 A. If the application requires the full 1.5 A current capacity, DF10S-E3/77 is not appropriate. For applications with lower current demand, DF10S-E3/77 maintains voltage rating, temperature range, and package compatibility.

Q: What is the difference between DF1510S-E3/77 and DFL1510S-E3/45?

A: Both parts are full parametric equivalents with 1.5 A current rating and 1 kV voltage rating. The primary difference is packaging format: DF1510S-E3/77 is supplied in Cut Tape (CT) & Digi-Reel® format, while DFL1510S-E3/45 is supplied in Tube format. Electrical specifications are identical. Selection depends on assembly process requirements and packaging compatibility with production equipment.

Q: Is DB157S a suitable substitute despite lower forward voltage specification?

A: DB157S is a full parametric equivalent with matching 1.5 A current rating, 1 kV voltage rating, and 4-SMD Gull Wing package. The forward voltage specification of 1 V @ 1.5 A is lower than the DBLS157GHC1G specification of 1.1 V @ 1.5 A. Lower forward voltage indicates reduced power dissipation and improved efficiency characteristics. DB157S is electrically compatible and suitable for direct substitution.

Q: Why do some substitutes have different reverse leakage specifications?

A: Reverse leakage current varies by manufacturer and process technology while maintaining the same voltage and current ratings. The DBLS157GHC1G specifies 2 µA @ 1000 V. Substitutes range from 1 µA to 10 µA @ 1000 V. All values remain within acceptable limits for standard bridge rectifier applications. Lower reverse leakage indicates superior performance; higher values remain within functional specifications.

Q: Can DF10S-T be used in automotive applications?

A: DF10S-T is manufactured by Diodes Incorporated and is ROHS3 compliant with MSL 1. However, the provided specifications do not indicate AEC-Q101 automotive qualification. The DBLS157GHC1G carries AEC-Q101 qualification. For automotive applications requiring AEC-Q101 certification, DF10S-T substitution requires verification of automotive qualification status with the manufacturer.

Q: What packaging options are available for 1.5 A rated substitutes?

A: Full parametric equivalents with 1.5 A rating are available in the following packaging formats: Cut Tape (CT) & Digi-Reel® (DF1510S-E3/77), Tube (DFL1510S-E3/45), and unspecified packaging (DB157S, DF1510S). Selection depends on assembly process compatibility and production volume requirements.

Q: Are all substitutes RoHS3 compliant?

A: All recommended substitutes are ROHS3 compliant. DF10S1 (Fairchild Semiconductor) does not specify RoHS status in the provided data and is not recommended for applications requiring documented RoHS3 compliance verification.

Q: What is the significance of MSL 1 (Unlimited) rating?

A: MSL 1 (Unlimited) indicates that the component has unlimited shelf life and does not require special moisture control during storage or handling. All recommended substitutes maintain MSL 1 rating, ensuring compatibility with standard component storage and assembly processes.

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