DF1501SP-G Bridge Rectifier Equivalent & Substitute Parts

Part Overview

The DF1501SP-G is a single-phase bridge rectifier manufactured by Comchip Technology, rated for 100 V peak reverse voltage and 1.5 A average rectified current. This component is classified as obsolete, necessitating identification of active equivalent and substitute parts for ongoing design requirements and procurement needs. The part is housed in a 4-SMD Gull Wing surface mount package (DFS) and operates across a temperature range of -55°C to 150°C.

Key Parameters

Parameter	Value
Diode Type	Single Phase
Technology	Standard
Voltage - Peak Reverse (Max)	100 V
Current - Average Rectified (Io)	1.5 A
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 1.5 A
Operating Temperature Range	-55°C ~ 150°C (TJ)
Mounting Type	Surface Mount
Package / Case	4-SMD, Gull Wing
Supplier Device Package	DFS

Substitute Part Grouping Explanation

Substitution of the DF1501SP-G is determined by strict equivalence across the following electrical and mechanical parameters:

Voltage Rating: Peak reverse voltage of 100 V (maximum)
Current Rating: Average rectified current of 1.5 A
Forward Voltage: Maximum 1.1 V at 1.5 A forward current
Package Configuration: 4-SMD Gull Wing surface mount form factor
Temperature Range: Operating range of -55°C to 150°C

All substitute parts listed maintain these core electrical specifications and physical package requirements. Variations in reverse leakage current, product status, and compliance certifications are noted but do not disqualify functional equivalence for standard applications.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Product Status	Voltage - Peak Reverse (Max)	Current - Average Rectified (Io)	Voltage - Forward (Vf) (Max) @ If	Current - Reverse Leakage @ Vr	Operating Temperature	Package / Case	RoHS Status
DF1501SP-G	Comchip Technology	Obsolete	100 V	1.5 A	1.1 V @ 1.5 A	5 µA @ 100 V	-55°C ~ 150°C	4-SMD, Gull Wing	Not specified
DF1501S-G	Comchip Technology	Active	100 V	1.5 A	1.1 V @ 1.5 A	10 µA @ 100 V	-55°C ~ 150°C	4-SMD, Gull Wing	ROHS3 Compliant
DF1501S-E3/45	Vishay General Semiconductor - Diodes Division	Active	100 V	1.5 A	1.1 V @ 1.5 A	5 µA @ 100 V	-55°C ~ 150°C	4-SMD, Gull Wing	ROHS3 Compliant
DFL1501S-E3/45	Vishay General Semiconductor - Diodes Division	Active	100 V	1.5 A	1.1 V @ 1.5 A	5 µA @ 100 V	-55°C ~ 150°C	4-SMD, Gull Wing	ROHS3 Compliant
DBLS152G C1G	Taiwan Semiconductor Corporation	Active	100 V	1.5 A	1.1 V @ 1.5 A	2 µA @ 100 V	-55°C ~ 150°C	4-SMD, Gull Wing	ROHS3 Compliant
DBLS152GHC1G	Taiwan Semiconductor Corporation	Active	100 V	1.5 A	1.1 V @ 1.5 A	2 µA @ 100 V	-55°C ~ 150°C	4-SMD, Gull Wing	ROHS3 Compliant

Engineering Selection Recommendations

Primary Recommendation: DF1501S-G

The DF1501S-G is the direct active equivalent from the original manufacturer, Comchip Technology. This part maintains identical electrical specifications and package configuration while offering active product status and ROHS3 compliance. The higher reverse leakage current (10 µA versus 5 µA) remains within acceptable operational parameters for standard bridge rectifier applications.

Secondary Recommendations: DF1501S-E3/45 and DFL1501S-E3/45

Both Vishay General Semiconductor parts provide active status with ROHS3 compliance and identical electrical performance to the original DF1501SP-G. These parts are available in higher inventory quantities (5888 and 4982 units respectively) and maintain the same reverse leakage specification (5 µA @ 100 V).

Alternative Recommendations: DBLS152G C1G and DBLS152GHC1G

Taiwan Semiconductor Corporation parts offer parametric equivalence with superior reverse leakage characteristics (2 µA @ 100 V). The DBLS152GHC1G variant includes automotive-grade qualification (AEC-Q101) for applications requiring enhanced reliability standards. Both variants maintain ROHS3 compliance and active product status.

Frequently Asked Questions (FAQ)

Q: Can DF1501S-G directly replace DF1501SP-G in existing designs?

A: Yes. The DF1501S-G maintains identical electrical ratings (100 V, 1.5 A, 1.1 V forward voltage) and package configuration (4-SMD Gull Wing). The primary difference is product status (active versus obsolete) and ROHS3 compliance certification.

Q: What is the significance of reverse leakage current differences among substitute parts?

A: Reverse leakage current variations (2 µA to 10 µA @ 100 V) represent minor differences in diode quality and manufacturing process. All values remain within acceptable ranges for standard bridge rectifier operation. Applications with stringent leakage requirements should select DBLS152G variants (2 µA specification).

Q: Are all substitute parts available in the same packaging format?

A: Yes. All substitute parts use 4-SMD Gull Wing surface mount packaging, ensuring mechanical compatibility with existing PCB layouts and assembly processes.

Q: Which substitute part offers the best compliance profile?

A: DF1501S-G, DF1501S-E3/45, DFL1501S-E3/45, DBLS152G C1G, and DBLS152GHC1G all carry ROHS3 compliance. The DBLS152GHC1G additionally qualifies for automotive applications under AEC-Q101 standard.

Q: Is there a difference between DF1501S-E3/45 and DFL1501S-E3/45?

A: Both parts are manufactured by Vishay General Semiconductor with identical electrical specifications and compliance certifications. The base product number differs (DF1501 versus DFL1501), but functional performance and substitution capability remain equivalent.

Q: What inventory considerations should guide part selection?

A: DF1501S-E3/45 offers the highest inventory availability (5888 units), followed by DBLS152GHC1G (894 units) and DFL1501S-E3/45 (4982 units). DF1501S-G provides 1116 units from the original manufacturer.

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