DF1502S Bridge Rectifier Equivalent & Substitute Parts

Part Overview

The DF1502S is a single-phase bridge rectifier manufactured by Diodes Incorporated, rated for 200 V peak reverse voltage and 1.5 A average rectified current. This component is designed for surface mount applications in standard rectification circuits. The part maintains Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating.

Substitute parts become necessary when the DF1502S reaches end-of-life status, when supply constraints occur, or when design requirements allow for functionally equivalent alternatives that meet the same electrical and mechanical specifications.

Substiute Parts

DF1502S

Diodes IncorporatedIn Stock: 1955DF1502S Datasheet

Current PartRFQ

DF02S

onsemiIn Stock: 52849DF02S Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DF1502S is determined by matching the following critical parameters:

• Voltage - Peak Reverse (Max): 200 V minimum
• Current - Average Rectified (Io): 1.5 A minimum
• Voltage - Forward (Vf) (Max) @ If: 1.1 V @ 1.5 A maximum
• Diode Type: Single Phase
• Mounting Type: Surface Mount
• Package / Case: 4-SMD, Gull Wing configuration

The DF02S from onsemi meets all electrical and mechanical requirements for direct substitution. Both parts share identical voltage and current ratings, forward voltage characteristics, and surface mount packaging. Differences in operating temperature range and reverse leakage measurement voltage do not prevent functional equivalence within standard application parameters.

Parameter Comparison

Engineering Selection Recommendations

The DF02S qualifies as a direct electrical and mechanical substitute for the DF1502S based on matched voltage, current, and forward voltage specifications. Both parts carry ROHS3 compliance and maintain unlimited moisture sensitivity ratings.

The DF02S carries a "Not For New Designs" product status designation. This status indicates the part remains available for existing applications but is not recommended for new circuit designs. Selection of DF02S should be limited to replacement scenarios, legacy system maintenance, or applications where existing inventory and supply chain relationships justify its use.

For new designs, the DF1502S maintains Active product status and represents the preferred selection. The DF1502S offers superior long-term availability and manufacturer support.

Frequently Asked Questions (FAQ)

Q: Can DF02S replace DF1502S in existing circuits?

A: Yes. The DF02S meets all critical electrical parameters: 200 V peak reverse voltage, 1.5 A average rectified current, and 1.1 V forward voltage at 1.5 A. Both parts use identical 4-SMD, Gull Wing surface mount packaging. Pin-to-pin compatibility is confirmed.

Q: What is the significance of the operating temperature range difference?

A: The DF1502S operates from -65°C to 150°C, while the DF02S operates from -55°C to 150°C. The DF02S has a narrower lower temperature limit. Applications requiring operation below -55°C must use the DF1502S.

Q: Why is DF02S marked "Not For New Designs"?

A: This designation indicates the manufacturer has discontinued active development and long-term support for this part. While the part remains available and functional, new circuit designs should specify the DF1502S to ensure sustained availability and manufacturer support throughout the product lifecycle.

Q: Are there package compatibility concerns?

A: No. Both parts use 4-SMD, Gull Wing surface mount packaging. PCB footprints, reflow profiles, and assembly processes are identical.

Q: How do reverse leakage specifications compare?

A: The DF1502S specifies 10 µA reverse leakage at 100 V, while the DF02S specifies 10 µA at 200 V. The DF02S measurement at higher voltage represents more conservative leakage characterization. Both parts meet the same leakage performance at 100 V operation.