DF02S1 Bridge Rectifier Equivalent & Substitute Parts

Part Overview

The DF02S1 is a single-phase bridge rectifier manufactured by onsemi, rated for 200 V peak reverse voltage and 1 A average rectified current in a 4-SMD surface mount package. This component is classified as "Not For New Designs," indicating it has reached end-of-life status. Identifying equivalent and substitute parts is necessary for ongoing production support, maintenance applications, and design transitions to active alternatives that maintain electrical and mechanical compatibility.

Key Parameters

Parameter	Value
Diode Type	Single Phase
Voltage - Peak Reverse (Max)	200 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
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the DF02S1 are qualified based on the following criteria:

Voltage Rating: Peak reverse voltage must be 200 V (maximum)
Current Rating: Average rectified current must be 1 A (minimum)
Forward Voltage: Maximum forward voltage at 1 A must not exceed 1.1 V
Package Type: 4-SMD, Gull Wing surface mount configuration
Temperature Range: Operating temperature range of -55°C to 150°C (TJ)
Compliance: ROHS3 compliance and MSL 1 rating

All substitute parts listed maintain these electrical and mechanical specifications, ensuring direct functional equivalence in applications designed for the DF02S1.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Voltage - Peak Reverse (Max)	Current - Io (A)	Vf (Max) @ If	Reverse Leakage @ Vr	Operating Temperature	Product Status	RoHS Status
DF02S1	onsemi	200 V	1 A	1.1 V @ 1 A	3 µA @ 200 V	-55°C ~ 150°C	Not For New Designs	ROHS3 Compliant
ABS2-HF	Comchip Technology	200 V	1 A	1.1 V @ 1 A	5 µA @ 200 V	-55°C ~ 150°C	Active	ROHS3 Compliant
ABS2U	SMC Diode Solutions	200 V	1 A	1.1 V @ 1 A	5 µA @ 200 V	-55°C ~ 150°C	Active	ROHS3 Compliant
DB103S	Rectron USA	200 V	1 A	1 V @ 1 A	1 µA @ 200 V	-55°C ~ 150°C	Active	ROHS3 Compliant
DB103S-HF	Comchip Technology	200 V	1 A	1.1 V @ 1 A	10 µA @ 200 V	-55°C ~ 150°C	Active	Not Specified
DBLS103G	Taiwan Semiconductor Corporation	200 V	1 A	1.1 V @ 1 A	2 µA @ 200 V	-55°C ~ 150°C	Active	ROHS3 Compliant
DBLS103GHRDG	Taiwan Semiconductor Corporation	200 V	1 A	1.1 V @ 1 A	2 µA @ 200 V	-55°C ~ 150°C	Active	ROHS3 Compliant
DF02S-E3/77	Vishay General Semiconductor - Diodes Division	200 V	1 A	1.1 V @ 1 A	5 µA @ 200 V	-55°C ~ 150°C	Active	ROHS3 Compliant
DF02SA-E3/77	Vishay General Semiconductor - Diodes Division	200 V	1 A	1.1 V @ 1 A	5 µA @ 200 V	-55°C ~ 150°C	Active	ROHS3 Compliant

Engineering Selection Recommendations

All listed substitute parts meet the core electrical and mechanical requirements for direct replacement of the DF02S1. Selection should be based on the following factors:

Product Status: All substitute parts carry Active product status, ensuring ongoing availability and manufacturer support. The DF02S1's "Not For New Designs" classification makes transition to an active alternative necessary for long-term supply chain stability.

Compliance & Certifications: All substitute parts maintain ROHS3 compliance and MSL 1 rating, matching the DF02S1's environmental and handling requirements. The DBLS103GHRDG variant includes AEC-Q101 automotive qualification, suitable for applications requiring automotive-grade reliability.

Reverse Leakage Characteristics: Substitute parts exhibit reverse leakage ranging from 1 µA to 10 µA at 200 V, compared to the DF02S1's 3 µA specification. The DB103S offers superior leakage performance at 1 µA, while DBLS103G and DBLS103GHRDG provide 2 µA performance. Higher leakage values (5–10 µA) remain within acceptable limits for standard rectification applications.

Forward Voltage Performance: DB103S provides a lower forward voltage of 1 V at 1 A, offering improved efficiency compared to the DF02S1's 1.1 V specification. All other substitutes maintain the 1.1 V maximum rating.

Inventory Availability: DF02S-E3/77 offers the highest inventory level (30,300 pcs), followed by DF02S1 (10,200 pcs) and ABS2U (1,147 pcs), supporting immediate procurement needs.

Frequently Asked Questions (FAQ)

Q: Can I use any of these substitute parts as a direct replacement for DF02S1?

A: Yes. All listed parts maintain identical voltage ratings (200 V peak reverse), current ratings (1 A average rectified), operating temperature range (-55°C to 150°C), and 4-SMD Gull Wing package configuration. Electrical performance differences are within acceptable tolerances for bridge rectifier applications.

Q: What is the significance of the DF02S1 being "Not For New Designs"?

A: This status indicates the part has reached end-of-life and is no longer recommended for new product development. Existing inventory remains available for support and maintenance, but new designs should transition to active alternatives such as DF02S-E3/77, ABS2U, or DB103S.

Q: How do reverse leakage differences affect circuit performance?

A: Reverse leakage variations (1–10 µA at 200 V) have minimal impact on standard rectification circuits. Applications with stringent leakage requirements should prioritize DB103S (1 µA) or DBLS103G/DBLS103GHRDG (2 µA). Higher leakage values remain acceptable for general-purpose power supply and industrial applications.

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

A: Both parts are manufactured by Vishay and share identical electrical specifications. The primary difference is packaging: DF02S-E3/77 is supplied in Cut Tape (CT) & Digi-Reel format, while DF02SA-E3/77 is supplied in Tape & Reel (TR) format. Selection depends on assembly line requirements and tape reel compatibility.

Q: Is DBLS103GHRDG suitable for automotive applications?

A: Yes. DBLS103GHRDG carries AEC-Q101 automotive qualification and is graded for automotive use. This variant is appropriate for automotive power management, engine control modules, and other automotive-grade rectification requirements.

Q: Are all substitute parts ROHS3 compliant?

A: All listed substitutes except DB103S-HF are explicitly ROHS3 compliant. DB103S-HF does not specify RoHS status in the provided data. Verify RoHS compliance with the manufacturer if this certification is required for your application.

Q: Can I mix different substitute parts in the same production batch?

A: Yes, provided your circuit design accommodates the specified electrical parameter ranges. All substitutes maintain the same voltage and current ratings. Document the specific part number used in each assembly for traceability and future maintenance.

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