DF10S1 Bridge Rectifier Equivalent & Substitute Parts

Part Overview

The DF10S1 is a single-phase bridge rectifier manufactured by onsemi, rated for 1 kV peak reverse voltage and 1 A average rectified current in a 4-SDIP surface mount package. This component is classified as "Not For New Designs," indicating it has reached end-of-life status. Finding equivalent substitute parts is necessary for maintenance, repair, and legacy system support where the original part is no longer readily available or when design flexibility permits component selection from active product lines.

Key Parameters

Parameter	Value
Diode Type	Single Phase
Technology	Standard
Voltage - Peak Reverse (Max)	1 kV
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
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the DF10S1 are qualified based on the following criteria:

Voltage Rating: Peak reverse voltage must be 1 kV
Current Rating: Average rectified current must be 1 A
Forward Voltage: Maximum forward voltage at rated current must not exceed 1.1 V
Temperature Range: Operating temperature range must span -55°C to 150°C
Package Type: Surface mount 4-SMD with gull wing configuration
Compliance: ROHS3 compliance and MSL 1 rating required

All substitute parts listed maintain these electrical and mechanical specifications, ensuring functional equivalence in applications designed for the DF10S1. Variations in reverse leakage current, supplier device package nomenclature, and product status are noted but do not affect substitutability within the specified parameter envelope.

Parameter Comparison

Part Number	Manufacturer	Vr (Max)	Io	Vf (Max) @ If	Ir @ Vr	Temp Range	Package	Product Status
DF10S1	onsemi	1 kV	1 A	1.1 V @ 1 A	3 µA @ 1000 V	-55°C ~ 150°C	4-SDIP	Not For New Designs
MDB10S	onsemi	1 kV	1 A	1.1 V @ 1 A	10 µA @ 1000 V	-55°C ~ 150°C	4-MicroDIP/SMD	Not For New Designs
ABS10-HF	Comchip Technology	1 kV	1 A	1.1 V @ 1 A	5 µA @ 1000 V	-55°C ~ 150°C	ABS	Active
ABS10A-13	Diodes Incorporated	1 kV	1 A	1.1 V @ 1 A	5 µA @ 1000 V	-55°C ~ 150°C	4-SOPA	Active
ABS10U	SMC Diode Solutions	1 kV	1 A	1.1 V @ 1 A	5 µA @ 1000 V	-55°C ~ 150°C	ABS	Active
B1010S_R2_00001	Panjit International Inc.	1 kV	1 A	1.1 V @ 1 A	5 µA @ 1000 V	-55°C ~ 150°C	4-MDI	Active
DB107S	MDD	1 kV	1 A	1.1 V @ 1 A	10 µA @ 1000 V	-55°C ~ 150°C	DBS	Active
DBLS107G	Taiwan Semiconductor Corporation	1 kV	1 A	1.1 V @ 1.5 A	2 µA @ 1000 V	-55°C ~ 150°C	DBLS	Active
DBLS107GH	Taiwan Semiconductor Corporation	1 kV	1 A	1.1 V @ 1 A	2 µA @ 1000 V	-55°C ~ 150°C	DBLS	Active
DF10S-E3/77	Vishay General Semiconductor - Diodes Division	1 kV	1 A	1.1 V @ 1 A	5 µA @ 1000 V	-55°C ~ 150°C	DFS	Active

Engineering Selection Recommendations

Active Product Alternatives: For new applications or long-term availability, select from parts with Active product status: ABS10-HF, ABS10A-13, ABS10U, B1010S_R2_00001, DB107S, DBLS107G, DBLS107GH, or DF10S-E3/77. These parts are currently manufactured and supported by their respective suppliers.

Legacy System Maintenance: When replacing DF10S1 in existing designs, MDB10S and DF10S-E3/77 provide the closest functional match, though both are classified as "Not For New Designs" or have limited availability. DF10S-E3/77 from Vishay offers active production status with equivalent electrical performance.

Compliance Considerations: All listed substitutes maintain ROHS3 compliance and MSL 1 rating. DBLS107GH includes AEC-Q101 automotive qualification, suitable for applications requiring automotive-grade reliability.

Package Compatibility: Physical package differences exist among substitutes (4-SDIP, 4-MicroDIP, ABS, 4-SOPA, 4-MDI, DBS, DBLS, DFS). PCB layout and footprint modifications may be required depending on the selected substitute. Verify mechanical compatibility with existing board designs before implementation.

Frequently Asked Questions (FAQ)

Q: Can any of these substitute parts directly replace the DF10S1 without PCB modification?

A: Electrical substitution is possible for all listed parts based on voltage, current, and temperature specifications. However, physical package differences require PCB footprint verification. Parts with identical package designations (4-SMD, Gull Wing) are more likely to fit existing layouts, but supplier device package nomenclature varies. Consult PCB layout documentation and part datasheets for mechanical compatibility.

Q: What is the significance of the reverse leakage current differences?

A: Reverse leakage current values range from 2 µA to 10 µA across the substitute list. All values remain within acceptable limits for standard bridge rectifier applications. Lower leakage (DBLS107G, DBLS107GH at 2 µA) may provide marginal benefits in high-impedance circuits, but this difference is not critical for typical power supply applications.

Q: Why is the DF10S1 marked "Not For New Designs"?

A: This designation indicates the part has reached end-of-life status and is no longer recommended for new product development. Existing inventory may still be available, but long-term supply cannot be guaranteed. For new designs, select from active product alternatives listed in this document.

Q: Are there any compliance or certification differences between substitutes?

A: All substitutes maintain ROHS3 compliance and MSL 1 rating. DBLS107GH uniquely includes AEC-Q101 automotive qualification, making it suitable for automotive and high-reliability applications. Other parts do not carry automotive certification but remain compliant with standard industrial requirements.

Q: What should I consider when selecting between multiple active alternatives?

A: Primary considerations are package compatibility with existing PCB designs, supplier availability in your region, and lead time. Electrical performance is equivalent across all substitutes within the specified parameter envelope. Reverse leakage current and forward voltage characteristics are comparable and do not significantly impact performance in standard rectification applications.

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