DF005SP-HF Equivalent & Substitute Parts

Part Overview

The DF005SP-HF is a single-phase bridge rectifier diode manufactured by Comchip Technology, rated for 50 V peak reverse voltage and 1 A average rectified current in a 4-SMD surface mount package. This component is classified as obsolete, necessitating identification of equivalent and substitute parts for ongoing design support and procurement.

Bridge rectifier diodes in this specification class are used in power supply circuits, battery charging applications, and AC-to-DC conversion stages. The obsolete status of the DF005SP-HF requires engineers to select from active alternative parts that maintain electrical and mechanical compatibility.

Key Parameters

Parameter	Value	Unit
Diode Type	Single Phase	—
Technology	Standard	—
Voltage - Peak Reverse (Max)	50	V
Current - Average Rectified (Io)	1	A
Voltage - Forward (Vf) (Max) @ If	1.1	V @ 1 A
Current - Reverse Leakage @ Vr	10	µA @ 50 V
Operating Temperature Range	-55 to 150	°C (TJ)
Mounting Type	Surface Mount	—
Package / Case	4-SMD, Gull Wing	—
Supplier Device Package	DFS	—

Substitute Part Grouping Explanation

Substitution of the DF005SP-HF is determined by strict equivalence across the following electrical and mechanical parameters:

Critical Substitution Parameters:

Voltage - Peak Reverse (Max): 50 V
Current - Average Rectified (Io): 1 A
Diode Type: Single Phase
Technology: Standard
Mounting Type: Surface Mount
Package / Case: 4-SMD, Gull Wing
Operating Temperature Range: -55°C to 150°C (TJ)

Secondary Compatibility Parameters:

Voltage - Forward (Vf) (Max) @ If: 1.1 V @ 1 A (maximum allowable)
Current - Reverse Leakage @ Vr: 10 µA @ 50 V (maximum allowable)

Substitute parts are grouped into two categories:

Category 1: Comchip Technology Parts (Same Manufacturer) Parts DF005S-HF, DB101S-HF, and DF005S-G maintain full electrical and mechanical compatibility with the DF005SP-HF. These parts share identical voltage ratings, current ratings, temperature ranges, and package specifications. The DF005S-HF is the manufacturer-recommended direct replacement with active product status.

Category 2: Cross-Manufacturer Equivalents Parts from Taiwan Semiconductor Corporation (DBLS101G C1G, DBLS101GHC1G) and Vishay General Semiconductor (DF005S-E3/45, DF005SA-E3/45) meet all critical electrical and mechanical parameters. These parts are functionally equivalent and maintain the same 4-SMD gull wing package configuration and operating temperature range.

Parameter Comparison

Part Number	Manufacturer	Product Status	Vr (Max) [V]	Io [A]	Vf (Max) @ If [V @ A]	Ir @ Vr [µA @ V]	Tj Range [°C]	Package	Device Package
DF005SP-HF	Comchip Technology	Obsolete	50	1	1.1 @ 1	10 @ 50	-55 to 150	4-SMD, Gull Wing	DFS
DF005S-HF	Comchip Technology	Active	50	1	1.1 @ 1	10 @ 50	-55 to 150	4-SMD, Gull Wing	DFS
DB101S-HF	Comchip Technology	Active	50	1	1.1 @ 1	10 @ 50	-55 to 150	4-SMD, Gull Wing	DBS
DB101S-G	Comchip Technology	Obsolete	50	1	1.1 @ 1	10 @ 50	-55 to 150	4-SMD, Gull Wing	DBS
DF005S-G	Comchip Technology	Obsolete	50	1	1.1 @ 1	10 @ 50	-55 to 150	4-SMD, Gull Wing	DFS
DBLS101G C1G	Taiwan Semiconductor Corporation	Active	50	1	1.1 @ 1	2 @ 50	-55 to 150	4-SMD, Gull Wing	DBLS
DBLS101GHC1G	Taiwan Semiconductor Corporation	Active	50	1	1.1 @ 1	2 @ 50	-55 to 150	4-SMD, Gull Wing	DBLS
DF005S-E3/45	Vishay General Semiconductor - Diodes Division	Active	50	1	1.1 @ 1	5 @ 50	-55 to 150	4-SMD, Gull Wing	DFS
DF005SA-E3/45	Vishay General Semiconductor - Diodes Division	Active	50	1	1.1 @ 1	5 @ 50	-55 to 150	4-SMD, Gull Wing	DFS

Engineering Selection Recommendations

Primary Recommendation: DF005S-HF

The DF005S-HF is the manufacturer-recommended replacement for the obsolete DF005SP-HF. Both parts are manufactured by Comchip Technology and share identical electrical specifications and package configuration. The DF005S-HF maintains active product status, ensuring long-term availability and supply chain continuity. This part is the preferred choice for direct substitution in existing designs.

Secondary Recommendations: DB101S-HF

The DB101S-HF is an active Comchip Technology part that meets all critical electrical and mechanical parameters. While the device package designation differs (DBS versus DFS), the physical 4-SMD gull wing package configuration remains identical. This part is suitable for applications where Comchip Technology sourcing is required.

Cross-Manufacturer Alternatives: Taiwan Semiconductor Corporation

The DBLS101G C1G and DBLS101GHC1G parts from Taiwan Semiconductor Corporation are active products that satisfy all electrical and mechanical substitution criteria. The DBLS101GHC1G includes automotive-grade qualification (AEC-Q101), making it suitable for automotive applications. Both parts feature lower reverse leakage current (2 µA @ 50 V) compared to the DF005SP-HF specification (10 µA @ 50 V), representing improved performance characteristics.

Cross-Manufacturer Alternatives: Vishay General Semiconductor

The DF005S-E3/45 and DF005SA-E3/45 parts from Vishay General Semiconductor are active products meeting all critical parameters. These parts feature reverse leakage current of 5 µA @ 50 V, which is lower than the DF005SP-HF specification. Both parts carry ROHS3 compliance and REACH unaffected status.

Obsolete Parts to Avoid for New Designs

The DB101S-G and DF005S-G are classified as obsolete and should not be selected for new designs, despite meeting electrical and mechanical specifications. These parts are suitable only for legacy system maintenance where existing inventory is available.

Frequently Asked Questions (FAQ)

Q: Can the DF005S-HF directly replace the DF005SP-HF in existing circuit boards?

A: Yes. The DF005S-HF is the manufacturer-recommended replacement and shares identical electrical specifications, operating temperature range, and 4-SMD gull wing package configuration. No circuit modifications are required.

Q: What is the difference between the DFS and DBS device package designations?

A: The DFS and DBS designations refer to internal device package codes assigned by Comchip Technology. Both result in identical 4-SMD gull wing physical packages suitable for surface mount assembly. The electrical performance and pin configuration are equivalent.

Q: Are the Taiwan Semiconductor Corporation parts (DBLS101G C1G, DBLS101GHC1G) suitable for all applications?

A: Yes, both parts meet all critical electrical and mechanical parameters. The DBLS101GHC1G includes automotive-grade qualification (AEC-Q101) and is specifically recommended for automotive applications. Both parts feature improved reverse leakage characteristics (2 µA @ 50 V) compared to the original specification.

Q: What is the significance of the lower reverse leakage current in the Taiwan Semiconductor and Vishay parts?

A: Lower reverse leakage current (2 µA or 5 µA versus 10 µA) indicates improved device performance and reduced power dissipation in reverse bias conditions. This represents a performance enhancement and does not create compatibility issues with the original design.

Q: Can I use obsolete parts like DF005S-G or DB101S-G for new designs?

A: Obsolete parts should not be selected for new designs due to uncertain long-term availability and supply chain risk. These parts are suitable only for maintenance of existing systems where inventory is available. Use active parts such as DF005S-HF, DB101S-HF, or cross-manufacturer equivalents for new designs.

Q: Are all substitute parts RoHS3 compliant?

A: The Comchip Technology parts DF005S-HF and DB101S-HF do not specify RoHS status in their data. The Taiwan Semiconductor Corporation parts (DBLS101G C1G, DBLS101GHC1G) and Vishay parts (DF005S-E3/45, DF005SA-E3/45) are confirmed ROHS3 compliant. Verify RoHS compliance requirements with your specific application before final part selection.

Q: What is the Moisture Sensitivity Level (MSL) for these parts?

A: The Taiwan Semiconductor Corporation and Vishay parts specify MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. The Comchip Technology parts do not specify MSL in their data. Consult manufacturer datasheets for complete handling and storage requirements.

Q: Can I mix different manufacturers' parts in the same production batch?

A: Yes. All substitute parts meet identical electrical specifications and package configuration. However, establish supplier qualification and quality assurance procedures for cross-manufacturer substitution to ensure consistency in manufacturing processes and long-term reliability.

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