DF1502S-G Bridge Rectifier Equivalent & Substitute Parts

Part Overview

The DF1502S-G is a single-phase bridge rectifier manufactured by Comchip Technology, rated for 200 V peak reverse voltage and 1.5 A average rectified current. This component is classified as Active product status and is RoHS3 compliant. Bridge rectifiers in this voltage and current class are essential in power supply circuits for AC-to-DC conversion applications. Substitute parts become necessary when the primary part experiences supply constraints, end-of-life transitions, or when alternative manufacturers' components are preferred for procurement or cost optimization within the same electrical and mechanical specifications.

Substiute Parts

DF1502S-G

Comchip TechnologyIn Stock: 974DF1502S-G Datasheet

Current PartRFQ

DF02S

onsemiIn Stock: 52849DF02S Datasheet

MFR RecommendedRFQ

DF02S

onsemiIn Stock: 52849DF02S Datasheet

MFR RecommendedRFQ

SDB103-TP

Micro Commercial CoIn Stock: 1363SDB103-TP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the DF1502S-G is determined by strict equivalence across the following critical parameters:

• Voltage Rating: Peak reverse voltage must equal 200 V
• Current Rating: Average rectified current must equal 1.5 A
• Diode Configuration: Single-phase bridge rectifier topology
• Forward Voltage Characteristics: Vf (Max) of 1.1 V @ 1.5 A
• Reverse Leakage: 10 µA @ 200 V
• Operating Temperature Range: -55°C ~ 150°C
• Mounting Technology: Surface mount with 4-SMD, Gull Wing package configuration
• Compliance Standards: RoHS3 compliance and MSL Level 1

The DF02S (onsemi) meets all electrical and mechanical parameters and serves as a direct substitute. The SDB103-TP (Micro Commercial Co) provides functional equivalence with identical voltage and temperature ratings; however, its current rating is specified at 1 A, which is lower than the 1.5 A requirement of the DF1502S-G, making it suitable only for applications with reduced current demands within the same voltage class.

Parameter Comparison

Engineering Selection Recommendations

DF02S (onsemi) is the primary substitute for DF1502S-G. Both components share identical electrical specifications (200 V, 1.5 A, 1.1 V forward voltage) and mechanical packaging. The DF02S maintains full compliance with RoHS3 standards and MSL Level 1 requirements. Although onsemi designates this part as "Not For New Designs," it remains functionally equivalent and suitable for replacement applications where the DF1502S-G is unavailable. Inventory availability of DF02S is significantly higher (52,800 pcs) compared to DF1502S-G (916 pcs).

SDB103-TP (Micro Commercial Co) is a partial substitute with the same voltage rating and operating temperature range but reduced current capacity (1 A versus 1.5 A). This component is appropriate only for circuit designs where the actual load current does not exceed 1 A. SDB103-TP also carries RoHS3 compliance and MSL Level 1 certification. Selection of SDB103-TP requires circuit-level verification that current demands remain within its 1 A specification.

Both substitute parts maintain identical package geometry (4-SMD, Gull Wing) and surface-mount compatibility with DF1502S-G PCB layouts.

Frequently Asked Questions (FAQ)

Q: Can DF02S be used as a direct replacement for DF1502S-G?

A: Yes. DF02S meets all electrical parameters of DF1502S-G: 200 V peak reverse voltage, 1.5 A average rectified current, 1.1 V forward voltage at 1.5 A, and identical operating temperature range (-55°C to 150°C). Both components use 4-SMD, Gull Wing surface-mount packaging and are RoHS3 compliant with MSL Level 1 rating.

Q: What is the difference between DF02S and SDB103-TP?

A: The primary difference is current rating. DF02S is rated for 1.5 A average rectified current, while SDB103-TP is rated for 1 A. Both share the same 200 V peak reverse voltage, 1.1 V forward voltage characteristic, and operating temperature range. SDB103-TP is suitable only for applications where circuit current does not exceed 1 A.

Q: Are all three parts pin-compatible?

A: Yes. All three parts (DF1502S-G, DF02S, and SDB103-TP) use identical 4-SMD, Gull Wing package geometry and can be soldered to the same PCB footprint without layout modification.

Q: What compliance certifications apply to substitute parts?

A: Both DF02S and SDB103-TP are RoHS3 compliant and carry MSL Level 1 (Unlimited) moisture sensitivity rating, matching the compliance profile of DF1502S-G. Both are also REACH Unaffected and classified under ECCN EAR99.

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

A: This designation indicates that onsemi has transitioned this part to mature or legacy status within their product portfolio. However, the component remains functionally equivalent and available in high volume (52,800 pcs). The designation does not affect electrical performance or suitability for replacement applications.

Q: Can SDB103-TP be used in all applications where DF1502S-G is specified?

A: No. SDB103-TP is suitable only for applications where the actual average rectified current requirement does not exceed 1 A. Applications requiring the full 1.5 A capacity must use DF02S or DF1502S-G.