Equivalent & Substitute Parts for DF06S-G Bridge Rectifier

Part Overview

The DF06S-G is a single-phase bridge rectifier diode manufactured by Comchip Technology, rated for 600 V peak reverse voltage and 1 A average rectified current in a 4-SMD, Gull Wing surface mount package. The part is currently listed as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

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
Current - Reverse Leakage @ Vr	10 µA @ 600 V
Operating Temperature Range	-55°C ~ 150°C (TJ)
Mounting Type	Surface Mount
Package / Case	4-SMD, Gull Wing
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the DF06S-G are grouped based on strict electrical and mechanical parameter matching:

Electrical Parameters for Substitution:

Voltage - Peak Reverse (Max): 600 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) or wider

Mechanical Parameters for Substitution:

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, ensuring functional compatibility in applications designed for the DF06S-G.

Parameter Comparison

Part Number	Manufacturer	Product Status	Vr (Max)	Io	Vf (Max) @ If	Ir @ Vr	Temp Range	Package
DF06S-G	Comchip Technology	Obsolete	600 V	1 A	1.1 V @ 1 A	10 µA @ 600 V	-55°C ~ 150°C	4-SMD, Gull Wing
DF06S-HF	Comchip Technology	Active	600 V	1 A	1.1 V @ 1 A	10 µA @ 600 V	-55°C ~ 150°C	4-SMD, Gull Wing
DB105S-G	Comchip Technology	Obsolete	600 V	1 A	1.1 V @ 1 A	10 µA @ 600 V	-55°C ~ 150°C	4-SMD, Gull Wing
DB105S-HF	Comchip Technology	Active	600 V	1 A	1.1 V @ 1 A	10 µA @ 600 V	-55°C ~ 150°C	4-SMD, Gull Wing
DF06S	Fairchild Semiconductor	Active	600 V	1 A	1.1 V @ 1 A	10 µA @ 600 V	-65°C ~ 150°C	4-SMD, Gull Wing
DBLS105G C1G	Taiwan Semiconductor Corporation	Active	600 V	1 A	1.1 V @ 1 A	2 µA @ 600 V	-55°C ~ 150°C	4-SMD, Gull Wing
DBLS105GHC1G	Taiwan Semiconductor Corporation	Active	600 V	1 A	1.1 V @ 1 A	2 µA @ 600 V	-55°C ~ 150°C	4-SMD, Gull Wing
DF06S-E3/45	Vishay General Semiconductor - Diodes Division	Active	600 V	1 A	1.1 V @ 1 A	5 µA @ 600 V	-55°C ~ 150°C	4-SMD, Gull Wing
DF06SA-E3/45	Vishay General Semiconductor - Diodes Division	Active	600 V	1 A	1.1 V @ 1 A	5 µA @ 600 V	-55°C ~ 150°C	4-SMD, Gull Wing

Engineering Selection Recommendations

Primary Recommendation - Active Status: DF06S-HF (Comchip Technology) is the direct active replacement for the obsolete DF06S-G, maintaining identical electrical specifications and package configuration with current product availability.

Alternative Active Options: DB105S-HF (Comchip Technology) provides equivalent electrical and mechanical specifications with active product status. DF06S (Fairchild Semiconductor) offers extended lower operating temperature limit (-65°C vs -55°C) while maintaining all other parameters. DBLS105G C1G and DBLS105GHC1G (Taiwan Semiconductor Corporation) provide improved reverse leakage characteristics (2 µA vs 10 µA) with active status. DF06S-E3/45 and DF06SA-E3/45 (Vishay General Semiconductor - Diodes Division) are active alternatives with moderate reverse leakage (5 µA).

Compliance Considerations: All listed substitutes maintain ROHS3 compliance and MSL 1 (Unlimited) rating. DBLS105GHC1G includes AEC-Q101 automotive qualification.

Frequently Asked Questions (FAQ)

Q: Can DF06S-HF directly replace DF06S-G in existing designs? A: Yes. DF06S-HF maintains identical electrical parameters (600 V, 1 A, 1.1 V forward voltage) and 4-SMD Gull Wing package configuration. Both are ROHS3 compliant with MSL 1 rating.

Q: What is the difference between DF06S-G and DB105S-G? A: Both parts share identical electrical specifications and package type. The primary difference is the supplier device package designation (DFS vs DBS). Electrical performance and mechanical compatibility are equivalent.

Q: Why do some substitutes show lower reverse leakage current? A: DBLS105G C1G and DBLS105GHC1G (Taiwan Semiconductor Corporation) specify 2 µA reverse leakage versus 10 µA for the DF06S-G. This represents improved leakage performance while maintaining all other electrical parameters. DF06S-E3/45 and DF06SA-E3/45 specify 5 µA leakage. Lower leakage does not prevent substitution; it represents enhanced device characteristics.

Q: Are there temperature range differences among substitutes? A: DF06S (Fairchild Semiconductor) extends the lower operating temperature to -65°C compared to -55°C for other parts. All maintain the 150°C upper limit. This wider range does not prevent substitution in applications requiring -55°C to 150°C operation.

Q: What packaging formats are available? A: All substitutes use 4-SMD, Gull Wing surface mount package. Tube packaging is specified for DF06S-G, DB105S-G, DF06S-E3/45, and DF06SA-E3/45. Other substitutes do not specify packaging format in available data.

Q: Is automotive qualification available? A: DBLS105GHC1G includes AEC-Q101 automotive qualification and Grade designation. Other substitutes do not specify automotive qualification in provided data.

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