DF02S-T Bridge Rectifier Single Phase 200V 1A Equivalent & Substitute Parts

Part Overview

The DF02S-T is a single-phase bridge rectifier manufactured by Diodes Incorporated, rated for 200V peak reverse voltage and 1A average rectified current in a 4-SMD surface mount package. This part is currently active and in production with 63,200 units in stock.

Substitute parts are necessary when the original part becomes unavailable, when alternative voltage or current ratings better match application requirements, or when design revisions require different electrical specifications within compatible package families.

Key Parameters

Parameter	DF02S-T
Manufacturer	Diodes Incorporated
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
Current - Reverse Leakage @ Vr	10 µA @ 200 V
Operating Temperature Range	-65°C ~ 150°C (TJ)
Mounting Type	Surface Mount
Package / Case	4-SMD, Gull Wing
Supplier Device Package	DF-S
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Product Status	Active

Substitute Part Grouping Explanation

Substitution eligibility for the DF02S-T is determined by the following criteria:

Mandatory Compatibility Parameters:

Single-phase bridge rectifier topology
Surface mount 4-SMD, Gull Wing package
Peak reverse voltage rating equal to or greater than 200V
Average rectified current rating equal to or greater than 1A
Forward voltage drop within acceptable operating range
Operating temperature range encompassing -65°C to 150°C

Substitution Logic: Parts with voltage ratings below 200V (such as 50V or 100V rated devices) are not suitable for direct substitution in applications requiring 200V operation. Parts with current ratings below 1A do not meet minimum current handling requirements. Parts with higher voltage or current ratings are acceptable substitutes provided they maintain electrical and thermal compatibility within the same package family.

Parameter Comparison

Part Number	Manufacturer	Voltage - Peak Reverse (Max)	Current - Average Rectified (Io)	Voltage - Forward (Vf) (Max) @ If	Current - Reverse Leakage @ Vr	Operating Temperature	Packaging	Product Status
DF02S-T	Diodes Incorporated	200 V	1 A	1.1 V @ 1 A	10 µA @ 200 V	-65°C ~ 150°C	Tape & Reel (TR)	Active
DF1502S-T	Diodes Incorporated	200 V	1.5 A	1.1 V @ 1.5 A	10 µA @ 200 V	-65°C ~ 150°C	Cut Tape (CT) & Digi-Reel®	Active
DF1504S-T	Diodes Incorporated	400 V	1.5 A	1.1 V @ 1.5 A	10 µA @ 400 V	-65°C ~ 150°C	Tape & Reel (TR)	Active
DF1506S-T	Diodes Incorporated	600 V	1.5 A	1.1 V @ 1.5 A	10 µA @ 600 V	-65°C ~ 150°C	Cut Tape (CT) & Digi-Reel®	Active
DF1510S-T	Diodes Incorporated	1 kV	1.5 A	1.1 V @ 1.5 A	10 µA @ 1000 V	-65°C ~ 150°C	Cut Tape (CT) & Digi-Reel®	Active
DF1501S	Diodes Incorporated	100 V	1.5 A	1.1 V @ 1.5 A	10 µA @ 100 V	-65°C ~ 150°C	Tube	Active
DF15005S-T	Diodes Incorporated	50 V	1.5 A	1.1 V @ 1.5 A	10 µA @ 50 V	-65°C ~ 150°C	Tape & Reel (TR)	Active
DF1508S	Diodes Incorporated	800 V	1.5 A	1.1 V @ 1.5 A	10 µA @ 800 V	-65°C ~ 150°C	Tube	Active
DF02S	onsemi	200 V	1.5 A	1.1 V @ 1.5 A	10 µA @ 200 V	-55°C ~ 150°C	Cut Tape (CT) & Digi-Reel®	Not For New Designs
DF01S	onsemi	100 V	1.5 A	1.1 V @ 1.5 A	5 µA @ 100 V	-55°C ~ 150°C	Cut Tape (CT) & Digi-Reel®	Not For New Designs
DF005S	onsemi	50 V	1.5 A	1.1 V @ 1 A	5 µA @ 50 V	-55°C ~ 150°C	Cut Tape (CT) & Digi-Reel®	Not For New Designs

Engineering Selection Recommendations

Direct Equivalent (Same Voltage & Current Rating): DF1502S-T is the primary equivalent for DF02S-T, offering identical 200V and 1.5A ratings with active product status and ROHS3 compliance. This part is recommended for new designs requiring the same electrical specifications.

Higher Voltage Ratings (Backward Compatible): DF1504S-T (400V), DF1506S-T (600V), DF1508S (800V), and DF1510S-T (1kV) are suitable substitutes when higher voltage margins are required. All maintain 1.5A current capacity and active product status. These parts are electrically compatible with 200V applications and provide additional voltage headroom.

Lower Voltage Ratings (Not Recommended): DF15005S-T (50V) and DF1501S (100V) have insufficient voltage ratings for 200V applications and are not suitable substitutes.

onsemi Alternatives (Legacy Status): DF02S (onsemi) matches the 200V/1.5A specification but carries "Not For New Designs" status. DF01S and DF005S have insufficient voltage ratings. These parts should not be selected for new designs.

Compliance & Certification: All Diodes Incorporated active-status parts maintain ROHS3 compliance, MSL Level 1, and REACH unaffected status. onsemi legacy parts also meet these certifications but are not recommended for new designs.

Frequently Asked Questions (FAQ)

Q: Can DF1502S-T replace DF02S-T in existing designs? A: Yes. DF1502S-T maintains the same 200V peak reverse voltage and provides higher current capacity (1.5A vs 1A). It is electrically compatible and recommended for new designs.

Q: Are higher voltage-rated parts (400V, 600V, 1kV) suitable substitutes? A: Yes. Parts with higher voltage ratings are backward compatible with 200V applications. DF1504S-T, DF1506S-T, DF1508S, and DF1510S-T all meet or exceed the electrical requirements of DF02S-T.

Q: Can lower voltage parts (50V, 100V) be used as substitutes? A: No. Parts rated below 200V peak reverse voltage do not meet the minimum voltage specification and will fail in 200V applications.

Q: What is the difference between Tape & Reel and Cut Tape packaging? A: Both are surface mount formats suitable for automated assembly. Tape & Reel (TR) is supplied on continuous reels for high-volume production. Cut Tape (CT) & Digi-Reel® is supplied in smaller quantities on tape segments. Package selection depends on production volume and handling requirements.

Q: Why is DF02S (onsemi) marked "Not For New Designs"? A: Legacy product status indicates the manufacturer is discontinuing this part. New designs should use active Diodes Incorporated equivalents such as DF1502S-T to ensure long-term availability and supply chain stability.

Q: Are there thermal or reliability differences between substitutes? A: All listed parts share identical operating temperature ranges (-65°C to 150°C for Diodes Incorporated; -55°C to 150°C for onsemi) and forward voltage characteristics. Substitution is based on electrical ratings and compliance certifications provided in the specifications.

Q: What packaging options are available for DF02S-T equivalents? A: Diodes Incorporated offers Tape & Reel (TR), Cut Tape (CT) & Digi-Reel®, and Tube packaging options across the DF series. Package selection should align with assembly process requirements and order quantities.

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