DF005ST-HF Bridge Rectifier Equivalent & Substitute Parts

Part Overview

The DF005ST-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. 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 supplier device package) 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)	50 V
Current - Average Rectified (Io)	1 A
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 1 A
Operating Temperature Range	-55°C ~ 150°C (TJ)
Mounting Type	Surface Mount
Package / Case	4-SMD, Gull Wing

Substitute Part Grouping Explanation

Substitution eligibility for the DF005ST-HF is determined by strict equivalence across the following critical parameters:

Voltage Rating: Peak reverse voltage must equal 50 V
Current Rating: Average rectified current must equal 1 A
Diode Configuration: Single-phase bridge rectifier topology
Forward Voltage: Maximum forward voltage of 1.1 V @ 1 A
Temperature Range: Operating range of -55°C to 150°C
Mounting Technology: Surface mount configuration
Package Form Factor: 4-SMD, Gull Wing physical footprint

All substitute parts listed below meet these core electrical and mechanical parameters. Variations in reverse leakage current, RoHS compliance status, and supplier device package designations do not preclude functional substitution when electrical specifications align.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Voltage - Peak Reverse (Max)	Current - Average Rectified (Io)	Voltage - Forward (Vf) (Max) @ If	Current - Reverse Leakage @ Vr	Operating Temperature	Mounting Type	Package / Case	Product Status
DF005ST-HF	Comchip Technology	50 V	1 A	1.1 V @ 1 A	10 µA @ 50 V	-55°C ~ 150°C	Surface Mount	4-SMD, Gull Wing	Obsolete
DF005S-HF	Comchip Technology	50 V	1 A	1.1 V @ 1 A	10 µA @ 50 V	-55°C ~ 150°C	Surface Mount	4-SMD, Gull Wing	Active
ABS05-HF	Comchip Technology	50 V	1 A	1.1 V @ 1 A	5 µA @ 50 V	-55°C ~ 150°C	Surface Mount	4-SMD, Gull Wing	Active
DB101S	SMC Diode Solutions	50 V	1 A	1.1 V @ 1 A	5 µA @ 50 V	-55°C ~ 150°C	Surface Mount	4-SMD, Gull Wing	Active
DBLS101G RDG	Taiwan Semiconductor Corporation	50 V	1 A	1.1 V @ 1 A	2 µA @ 50 V	-55°C ~ 150°C	Surface Mount	4-SMD, Gull Wing	Active
DBLS101GHRDG	Taiwan Semiconductor Corporation	50 V	1 A	1.1 V @ 1 A	2 µA @ 50 V	-55°C ~ 150°C	Surface Mount	4-SMD, Gull Wing	Active
DF005S-E3/77	Vishay General Semiconductor - Diodes Division	50 V	1 A	1.1 V @ 1 A	5 µA @ 50 V	-55°C ~ 150°C	Surface Mount	4-SMD, Gull Wing	Active
DF005S1	Fairchild Semiconductor	50 V	1 A	1.1 V @ 1 A	3 µA @ 50 V	-55°C ~ 150°C	Surface Mount	4-SMD, Gull Wing	Active
DF005SA-E3/77	Vishay General Semiconductor - Diodes Division	50 V	1 A	1.1 V @ 1 A	5 µA @ 50 V	-55°C ~ 150°C	Surface Mount	4-SMD, Gull Wing	Active

Engineering Selection Recommendations

Primary Recommendation: DF005S-HF

The DF005S-HF is the manufacturer-recommended successor to the obsolete DF005ST-HF. Both parts are manufactured by Comchip Technology and share identical electrical specifications and package form factors. The DF005S-HF is in active production status with 1043 units in stock, ensuring supply chain continuity.

Secondary Recommendations for Active Alternatives:

DF005S-E3/77 and DF005SA-E3/77 (Vishay General Semiconductor - Diodes Division) are parametric equivalents with RoHS3 compliance and REACH unaffected status. These parts feature tape and reel packaging and maintain identical electrical performance. DF005SA-E3/77 offers the highest inventory availability at 33,800 units.

DB101S (SMC Diode Solutions) is a parametric equivalent with RoHS3 compliance and REACH affected status. This part is supplied in tape and reel packaging and maintains full electrical equivalence.

DBLS101G RDG and DBLS101GHRDG (Taiwan Semiconductor Corporation) are parametric equivalents with superior reverse leakage characteristics (2 µA @ 50 V versus 10 µA @ 50 V on the original part). DBLS101GHRDG carries automotive-grade qualification (AEC-Q101) and is suitable for applications requiring automotive-level reliability. Both variants feature RoHS3 compliance and REACH unaffected status.

DF005S1 (Fairchild Semiconductor) is a parametric equivalent supplied in bulk packaging with reverse leakage of 3 µA @ 50 V.

ABS05-HF (Comchip Technology) is a parametric equivalent with RoHS3 compliance and MSL 1 rating, offering reduced reverse leakage (5 µA @ 50 V).

All listed substitutes maintain the 4-SMD, Gull Wing surface mount package form factor and operate across the identical -55°C to 150°C temperature range.

Frequently Asked Questions (FAQ)

Q: Can DF005S-HF directly replace DF005ST-HF in existing designs?

A: Yes. The DF005S-HF is the active equivalent manufactured by Comchip Technology with identical electrical specifications, forward voltage characteristics, and 4-SMD, Gull Wing package form factor. No circuit modifications are required.

Q: What is the difference between the various substitute parts?

A: All substitute parts meet the core electrical requirements: 50 V peak reverse voltage, 1 A average rectified current, and 1.1 V maximum forward voltage at 1 A. Differences exist in reverse leakage current (ranging from 2 µA to 10 µA @ 50 V), compliance certifications (RoHS3 status, REACH classification), and packaging formats (tape and reel versus bulk). These variations do not affect functional substitution in standard applications.

Q: Are there package compatibility considerations?

A: All listed substitute parts use the 4-SMD, Gull Wing surface mount package form factor, ensuring PCB footprint compatibility with the original DF005ST-HF. Supplier device package designations (DFS, ABS, DB-S, DBLS) refer to internal manufacturer classifications and do not affect physical mounting or electrical performance.

Q: Which substitute offers the best reverse leakage performance?

A: DBLS101G RDG and DBLS101GHRDG both feature reverse leakage of 2 µA @ 50 V, representing the lowest leakage current among available substitutes. The DBLS101GHRDG variant includes automotive-grade qualification (AEC-Q101).

Q: What compliance certifications should I consider?

A: DF005S-E3/77, DF005SA-E3/77, DB101S, DBLS101G RDG, DBLS101GHRDG, and ABS05-HF all carry RoHS3 compliance. DF005S-E3/77, DF005SA-E3/77, DBLS101G RDG, and DBLS101GHRDG are REACH unaffected. DB101S is REACH affected. DBLS101GHRDG includes automotive-grade qualification (AEC-Q101) for applications requiring automotive reliability standards.

Q: Which substitute offers the highest inventory availability?

A: DF005SA-E3/77 offers the highest inventory availability at 33,800 units in stock, followed by DF005S-E3/77 at 10,400 units.

Q: Can I use DBLS101GHRDG in non-automotive applications?

A: Yes. DBLS101GHRDG meets all electrical and mechanical requirements for standard applications. The automotive-grade qualification and AEC-Q101 certification indicate enhanced reliability and quality assurance but do not restrict use in non-automotive designs.

Q: What is the operating temperature range for all substitutes?

A: All substitute parts operate across the identical temperature range of -55°C to 150°C (TJ), matching the original DF005ST-HF specification.

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