DF01S2 Bridge Rectifier Equivalent & Substitute Parts

Part Overview

The DF01S2 is a single-phase bridge rectifier manufactured by onsemi, rated for 100 V peak reverse voltage and 2 A average rectified current. This component is classified as obsolete, making identification of equivalent substitute parts essential for ongoing design support and procurement continuity. Bridge rectifiers in this voltage and current class are widely used in AC-to-DC conversion applications requiring compact surface-mount solutions.

Substiute Parts

DF01S2

onsemiIn Stock: 1219DF01S2 Datasheet

Current PartRFQ

DF201ST-G

Comchip TechnologyIn Stock: 1128DF201ST-G Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DF01S2 is determined by strict equivalence across the following critical parameters:

• Diode Type: Single Phase
• Technology: Standard
• Voltage - Peak Reverse (Max): 100 V
• Current - Average Rectified (Io): 2 A
• Voltage - Forward (Vf) (Max) @ If: 1.1 V @ 2 A
• Operating Temperature Range: -55°C ~ 150°C (TJ)
• Mounting Type: Surface Mount
• Package / Case: 4-SMD, Gull Wing

The DF201ST-G from Comchip Technology meets all these criteria and is classified as a parametric equivalent. Both components share identical electrical specifications for voltage rating, current capacity, and forward voltage characteristics, with surface-mount packaging compatibility.

Parameter Comparison

Engineering Selection Recommendations

The DF201ST-G is a direct parametric equivalent for the obsolete DF01S2. Both components are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements. The reverse leakage current specification for the DF201ST-G (10 µA @ 100 V) is higher than the DF01S2 (3 µA @ 100 V), but remains within acceptable limits for standard bridge rectifier applications. Both components maintain identical voltage and current ratings, forward voltage characteristics, and operating temperature ranges. The 4-SMD, Gull Wing package ensures mechanical and electrical compatibility in existing PCB layouts.

Frequently Asked Questions (FAQ)

Q: Can the DF201ST-G replace the DF01S2 in existing designs?

A: Yes. The DF201ST-G meets all critical electrical parameters: 100 V peak reverse voltage, 2 A average rectified current, 1.1 V forward voltage at 2 A, and -55°C to 150°C operating temperature range. The 4-SMD, Gull Wing package is mechanically compatible with existing PCB footprints.

Q: What is the difference in reverse leakage current between these parts?

A: The DF01S2 specifies 3 µA @ 100 V, while the DF201ST-G specifies 10 µA @ 100 V. Both values are within standard specifications for single-phase bridge rectifiers and do not affect functional compatibility in typical AC-to-DC conversion applications.

Q: Are both parts RoHS compliant?

A: Yes. Both the DF01S2 and DF201ST-G are ROHS3 compliant with MSL rating of 1 (Unlimited), meeting current environmental and regulatory standards.

Q: Does the package change between these parts?

A: No. Both components use the 4-SMD, Gull Wing package configuration, ensuring direct PCB compatibility without layout modifications.

Q: Why is the DF01S2 listed as obsolete?

A: The DF01S2 is classified as obsolete by the manufacturer. The DF201ST-G provides equivalent electrical and mechanical performance for applications requiring this bridge rectifier specification.