DF06ST-G Bridge Rectifier Single Phase 600V 1A Equivalent & Substitute Parts

Part Overview

The DF06ST-G is a single-phase bridge rectifier manufactured by Comchip Technology, rated for 600V peak reverse voltage and 1A average rectified current. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing production and maintenance applications. The part operates across a temperature range of -55°C to 150°C and is housed in a 4-SMD Gull Wing surface mount package (DFS).

Key Parameters

Parameter	Value
Diode Type	Single Phase
Technology	Standard
Voltage - Peak Reverse (Max)	600 V
Current - Average Rectified (Io)	1 A
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 1 A
Operating Temperature	-55°C ~ 150°C (TJ)
Mounting Type	Surface Mount
Package / Case	4-SMD, Gull Wing
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution for the DF06ST-G is determined by strict equivalence across the following parameters:

Voltage - Peak Reverse (Max): 600 V
Current - Average Rectified (Io): 1 A
Voltage - Forward (Vf) (Max) @ If: 1.1 V @ 1 A
Operating Temperature: -55°C ~ 150°C (TJ)
Mounting Type: Surface Mount
Package / Case: 4-SMD, Gull Wing
Diode Type: Single Phase
Technology: Standard

All substitute parts listed maintain these core electrical and mechanical specifications. Variations in Current - Reverse Leakage, packaging format (Tape & Reel vs. Cut Tape), and product status are noted but do not prevent functional substitution when electrical parameters align.

Parameter Comparison

Part Number	Manufacturer	Voltage - Peak Reverse (Max)	Current - Average Rectified (Io)	Voltage - Forward (Vf) (Max) @ If	Current - Reverse Leakage @ Vr	Operating Temperature	Package / Case	Product Status	RoHS Status
DF06ST-G	Comchip Technology	600 V	1 A	1.1 V @ 1 A	10 µA @ 600 V	-55°C ~ 150°C (TJ)	4-SMD, Gull Wing	Obsolete	ROHS3 Compliant
DF06S-HF	Comchip Technology	600 V	1 A	1.1 V @ 1 A	10 µA @ 600 V	-55°C ~ 150°C (TJ)	4-SMD, Gull Wing	Active	ROHS3 Compliant
ABS6-HF	Comchip Technology	600 V	1 A	1.1 V @ 1 A	5 µA @ 1000 V	-55°C ~ 150°C (TJ)	4-SMD, Gull Wing	Active	ROHS3 Compliant
ABS6U	SMC Diode Solutions	600 V	1 A	1.1 V @ 1 A	5 µA @ 600 V	-55°C ~ 150°C (TJ)	4-SMD, Gull Wing	Active	ROHS3 Compliant
B106S_R2_00001	Panjit International Inc.	600 V	1 A	1.1 V @ 1 A	5 µA @ 600 V	-55°C ~ 150°C (TJ)	4-SMD, Gull Wing	Active	ROHS3 Compliant
DB105S	SMC Diode Solutions	600 V	1 A	1.1 V @ 1 A	5 µA @ 600 V	-55°C ~ 150°C (TJ)	4-SMD, Gull Wing	Active	ROHS3 Compliant
DBLS105G	Taiwan Semiconductor Corporation	600 V	1 A	1.1 V @ 1 A	2 µA @ 600 V	-55°C ~ 150°C (TJ)	4-SMD, Gull Wing	Active	ROHS3 Compliant
DBLS105GH	Taiwan Semiconductor Corporation	600 V	1 A	1.1 V @ 1 A	2 µA @ 600 V	-55°C ~ 150°C (TJ)	4-SMD, Gull Wing	Active	ROHS3 Compliant
DF06S-E3/77	Vishay General Semiconductor - Diodes Division	600 V	1 A	1.1 V @ 1 A	5 µA @ 600 V	-55°C ~ 150°C (TJ)	4-SMD, Gull Wing	Active	ROHS3 Compliant
DF06S1	onsemi	600 V	1 A	1.1 V @ 1 A	5 µA @ 600 V	-55°C ~ 150°C (TJ)	4-SMD, Gull Wing	Not For New Designs	ROHS3 Compliant
DF06SA-E3/77	Vishay General Semiconductor - Diodes Division	600 V	1 A	1.1 V @ 1 A	5 µA @ 600 V	-55°C ~ 150°C (TJ)	4-SMD, Gull Wing	Active	ROHS3 Compliant

Engineering Selection Recommendations

For replacement of the obsolete DF06ST-G, the following selection criteria apply:

Primary Recommendation: DF06S-HF (Comchip Technology) is the manufacturer-recommended substitute. It maintains identical electrical specifications and is in active production status with full ROHS3 compliance.

Active Production Alternatives: DF06S-E3/77, DF06SA-E3/77 (Vishay), ABS6-HF, ABS6U (SMC Diode Solutions), B106S_R2_00001 (Panjit), DB105S (SMC Diode Solutions), DBLS105G, and DBLS105GH (Taiwan Semiconductor Corporation) all meet the core electrical and mechanical requirements with active product status.

Automotive-Grade Option: DBLS105GH includes AEC-Q101 automotive qualification and is suitable for applications requiring automotive-grade components.

Legacy Status: DF06S1 (onsemi) is marked as "Not For New Designs" and should be avoided for new production applications despite electrical equivalence.

All substitute parts are ROHS3 compliant and operate within the specified temperature range of -55°C to 150°C.

Frequently Asked Questions (FAQ)

Q: Can I substitute DF06ST-G with any of the listed parts?

A: Yes, all listed parts meet the core electrical specifications (600V peak reverse voltage, 1A average rectified current, 1.1V forward voltage at 1A, and -55°C to 150°C operating temperature) and are housed in the same 4-SMD Gull Wing surface mount package. Functional substitution is valid across all listed alternatives.

Q: What is the difference between DF06S-HF and DF06S-E3/77?

A: Both parts are electrically equivalent with identical voltage and current ratings. DF06S-HF is manufactured by Comchip Technology, while DF06S-E3/77 is manufactured by Vishay. Both are in active production and ROHS3 compliant. Selection may depend on supplier availability and procurement preferences.

Q: Why do some parts show lower reverse leakage current?

A: DBLS105G and DBLS105GH exhibit 2 µA reverse leakage at 600V compared to 5-10 µA in other alternatives. This represents improved leakage characteristics but does not affect functional substitution, as all values remain within acceptable operating parameters for this application class.

Q: Is DBLS105GH suitable for automotive applications?

A: Yes, DBLS105GH carries AEC-Q101 automotive qualification and is suitable for automotive-grade applications requiring this certification.

Q: Should I use DF06S1 for new designs?

A: No. DF06S1 is marked as "Not For New Designs" and should be reserved for legacy system maintenance only. Use DF06S-HF or other active-status alternatives for new production.

Q: Are there packaging format differences I should consider?

A: Yes. Some parts are supplied in Tape & Reel (TR) format, while others use Cut Tape (CT) & Digi-Reel® format. Verify packaging compatibility with your assembly equipment and procurement requirements. All parts maintain the same 4-SMD Gull Wing physical package.

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