DFB2020 Bridge Rectifier Equivalent & Substitute Parts

Part Overview

The DFB2020 is a single-phase bridge rectifier manufactured by onsemi, rated for 200 V peak reverse voltage and 20 A average rectified current. This component is classified as "Not For New Designs," indicating it has reached end-of-life status. Finding equivalent and substitute parts is necessary for ongoing maintenance, repair, and legacy system support where the DFB2020 specifications remain functionally required.

Key Parameters

Parameter	Value
Diode Type	Single Phase
Technology	Standard
Voltage - Peak Reverse (Max)	200 V
Current - Average Rectified (Io)	20 A
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 20 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 DFB2020 are qualified based on the following criteria:

Electrical Parameters (Critical for Substitution):

Voltage - Peak Reverse (Max): 200 V
Current - Average Rectified (Io): 20 A
Voltage - Forward (Vf) (Max) @ If: 1.1 V @ 20 A
Operating Temperature Range: -55°C ~ 150°C (TJ)

Mechanical Parameters (Required for Physical Compatibility):

Mounting Type: Through Hole
Package / Case: 4-SIP or TS-6P compatible footprints

Compliance Parameters:

RoHS3 Compliant status

Parts meeting all electrical and mechanical parameters are classified as direct substitutes. Variations in reverse leakage current (within the specified range) and package designation (GBJ vs. TS-6P) do not disqualify substitution when all primary parameters align.

Parameter Comparison

Parameter	DFB2020 (onsemi)	GBJ2002 (SMC Diode Solutions)	TS20P03G (Taiwan Semiconductor)	TS20P03GH (Taiwan Semiconductor)
Diode Type	Single Phase	Single Phase	Single Phase	Single Phase
Technology	Standard	Standard	Standard	Standard
Voltage - Peak Reverse (Max)	200 V	200 V	200 V	200 V
Current - Average Rectified (Io)	20 A	20 A	20 A	20 A
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 20 A	1.1 V @ 20 A	1.1 V @ 20 A	1.1 V @ 20 A
Current - Reverse Leakage @ Vr	10 µA @ 200 V	5 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
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Not For New Designs	Active	Active	Active

Engineering Selection Recommendations

GBJ2002 (SMC Diode Solutions): This part meets all electrical specifications and is currently in active production status. The GBJ package footprint differs from the TS-6P, requiring PCB layout verification before implementation. Reverse leakage current is lower (5 µA vs. 10 µA), which represents improved performance. REACH Affected status indicates regulatory compliance documentation is required for certain markets.

TS20P03G (Taiwan Semiconductor Corporation): This part provides identical electrical and mechanical specifications to the DFB2020, including the same TS-6P package footprint and reverse leakage characteristics. Active product status ensures long-term availability. REACH Unaffected status simplifies regulatory compliance for global applications.

TS20P03GH (Taiwan Semiconductor Corporation): This variant is electrically and mechanically equivalent to TS20P03G with the addition of automotive-grade qualification (AEC-Q101). This part is suitable for applications requiring automotive-level reliability and traceability. Active product status and REACH Unaffected status apply.

Frequently Asked Questions (FAQ)

Q: Can GBJ2002 be used as a direct replacement for DFB2020 on existing PCBs?

A: GBJ2002 meets all electrical specifications but uses a different package footprint (GBJ vs. TS-6P). Physical compatibility requires PCB layout verification. If the PCB is designed for TS-6P footprint, GBJ2002 cannot be used without board modification.

Q: What is the difference between TS20P03G and TS20P03GH?

A: Both parts are electrically and mechanically identical. TS20P03GH includes automotive-grade qualification (AEC-Q101) and is intended for automotive applications requiring enhanced reliability documentation and traceability.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. DFB2020, GBJ2002, TS20P03G, and TS20P03GH are all ROHS3 Compliant.

Q: Which substitute part has the best availability?

A: Current inventory levels are: GBJ2002 (1,062 pcs), TS20P03G (792 pcs), and TS20P03GH (1,011 pcs). GBJ2002 has the highest stock level.

Q: Does reverse leakage current variation affect substitution?

A: GBJ2002 has lower reverse leakage (5 µA vs. 10 µA), which is acceptable and represents improved performance. This does not prevent substitution when other parameters match.

Q: What is the REACH status difference between substitutes?

A: TS20P03G and TS20P03GH are REACH Unaffected, simplifying compliance for global markets. GBJ2002 is REACH Affected, requiring additional regulatory documentation for certain jurisdictions.

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