DFB2520 Bridge Rectifier Equivalent & Substitute Parts

Part Overview

The DFB2520 is a single-phase bridge rectifier manufactured by onsemi, rated for 200 V peak reverse voltage and 25 A average rectified current. This component is classified as "Not For New Designs," making identification of equivalent and substitute parts essential for ongoing maintenance, repair, and legacy system support. The through-hole TS-6P package provides direct board integration for industrial and power conversion applications.

Key Parameters

Parameter	Value
Diode Type	Single Phase
Technology	Standard
Voltage - Peak Reverse (Max)	200 V
Current - Average Rectified (Io)	25 A
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 25 A
Current - Reverse Leakage @ Vr	10 µA @ 200 V
Operating Temperature Range	-55°C ~ 150°C (TJ)
Mounting Type	Through Hole
Package / Case	4-SIP, TS-6P
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the DFB2520 are qualified based on the following critical parameters:

Voltage - Peak Reverse (Max): 200 V
Current - Average Rectified (Io): 25 A
Voltage - Forward (Vf) (Max) @ If: 1.1 V @ 25 A
Current - Reverse Leakage @ Vr: 10 µA @ 200 V
Operating Temperature Range: -55°C ~ 150°C (TJ)
Mounting Type: Through Hole
Diode Type: Single Phase
Technology: Standard

Two categories of substitutes are identified:

Similar Manufacturer Part: GBJ2502 (SMC Diode Solutions) — functionally equivalent with identical electrical ratings but different package designation (4-ESIP vs. TS-6P) and forward voltage specification point (12.5 A vs. 25 A).

Parametric Equivalents: TS25P03G and TS25P03GH (Taiwan Semiconductor Corporation) — identical electrical specifications and TS-6P package matching. TS25P03GH includes automotive-grade qualification (AEC-Q101).

Parameter Comparison

Parameter	DFB2520 (onsemi)	GBJ2502 (SMC)	TS25P03G (TSC)	TS25P03GH (TSC)
Voltage - Peak Reverse (Max)	200 V	200 V	200 V	200 V
Current - Average Rectified (Io)	25 A	25 A	25 A	25 A
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 25 A	1.1 V @ 12.5 A	1.1 V @ 25 A	1.1 V @ 25 A
Current - Reverse Leakage @ Vr	10 µA @ 200 V	10 µA @ 200 V	10 µA @ 200 V	10 µA @ 200 V
Operating Temperature Range	-55°C ~ 150°C	-55°C ~ 150°C	-55°C ~ 150°C	-55°C ~ 150°C
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	4-SIP, TS-6P	4-ESIP, GBJ	4-SIP, TS-6P	4-SIP, TS-6P
Product Status	Not For New Designs	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

For Direct Pin-Compatible Replacement: TS25P03G and TS25P03GH are preferred substitutes. Both maintain identical TS-6P package geometry and electrical specifications, ensuring direct board-level compatibility without layout modifications. Both parts are in active production status, providing supply continuity.

For Automotive or High-Reliability Applications: TS25P03GH is the recommended selection due to AEC-Q101 automotive qualification and unlimited moisture sensitivity level (MSL: 1), providing enhanced reliability assurance for demanding environments.

For General Industrial Applications: TS25P03G provides equivalent performance with active product status and ROHS3 compliance.

For Package-Variant Applications: GBJ2502 is suitable when the 4-ESIP GBJ package is acceptable. This part maintains electrical equivalence but requires verification of PCB footprint compatibility. Forward voltage specification is provided at 12.5 A rather than 25 A; thermal performance at full 25 A load should be evaluated against application requirements.

Frequently Asked Questions (FAQ)

Q: Can GBJ2502 be used as a direct replacement for DFB2520? A: GBJ2502 is electrically equivalent but uses a different package (4-ESIP GBJ vs. TS-6P). Direct PCB substitution is not possible without footprint modification. Electrical performance is equivalent at rated specifications.

Q: What is the difference between TS25P03G and TS25P03GH? A: Both parts are parametrically identical with matching TS-6P packages and electrical ratings. TS25P03GH includes AEC-Q101 automotive qualification and is recommended for automotive or high-reliability applications. TS25P03G is suitable for general industrial use.

Q: Are all substitute parts ROHS3 compliant? A: Yes. DFB2520, GBJ2502, TS25P03G, and TS25P03GH are all ROHS3 compliant.

Q: What is the significance of the forward voltage specification point difference in GBJ2502? A: GBJ2502 specifies forward voltage at 12.5 A (half the rated current), while DFB2520, TS25P03G, and TS25P03GH specify at 25 A (full rated current). This difference reflects manufacturer test methodology but does not affect functional equivalence at rated operating conditions.

Q: Can these parts be used interchangeably in legacy systems? A: TS25P03G and TS25P03GH are direct substitutes for DFB2520 due to identical package and specifications. GBJ2502 requires PCB footprint verification before substitution.

Q: What inventory levels are available for each substitute? A: TS25P03G: 726 pcs; TS25P03GH: 854 pcs; GBJ2502: 894 pcs. DFB2520 original stock: 2200 pcs.

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