DF02S-G Bridge Rectifier Single Phase 200V 1A Equivalent & Substitute Parts

Part Overview

The DF02S-G is a single-phase bridge rectifier manufactured by Comchip Technology, rated for 200V peak reverse voltage and 1A average rectified current in a 4-SMD surface mount package. The part is currently obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. Substitute parts maintain identical electrical specifications and mechanical compatibility while offering active product status and improved availability.

Key Parameters

Parameter	Value
Diode Type	Single Phase
Technology	Standard
Voltage - Peak Reverse (Max)	200 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
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the DF02S-G are classified based on strict electrical and mechanical parameter matching:

Allowed Substitution Parameters:

Voltage - Peak Reverse (Max): 200 V (exact match required)
Current - Average Rectified (Io): 1 A (exact match required)
Voltage - Forward (Vf) (Max) @ If: 1.1 V @ 1 A (exact match required)
Operating Temperature: -55°C ~ 150°C (TJ) (exact match required)
Mounting Type: Surface Mount (exact match required)
Package / Case: 4-SMD, Gull Wing (exact match required)
Diode Type: Single Phase (exact match required)
Technology: Standard (exact match required)

Manufacturer Recommended Substitute: DF02S-HF from Comchip Technology maintains identical specifications with active product status.

Parametric Equivalents: DBLS103G C1G, DBLS103GHC1G (Taiwan Semiconductor Corporation), DF02S-E3/45, and DF02SA-E3/45 (Vishay General Semiconductor - Diodes Division) meet all electrical and mechanical requirements. Variations in reverse leakage current (2 µA to 10 µA @ 200 V) remain within acceptable operational parameters for this product category.

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	Inventory
DF02S-G	Comchip Technology	Obsolete	200 V	1 A	1.1 V @ 1 A	10 µA @ 200 V	-55°C ~ 150°C (TJ)	4-SMD, Gull Wing	819 Pcs
DF02S-HF	Comchip Technology	Active	200 V	1 A	1.1 V @ 1 A	10 µA @ 200 V	-55°C ~ 150°C (TJ)	4-SMD, Gull Wing	803 Pcs
DBLS103G C1G	Taiwan Semiconductor Corporation	Active	200 V	1 A	1.1 V @ 1 A	2 µA @ 200 V	-55°C ~ 150°C (TJ)	4-SMD, Gull Wing	993 Pcs
DBLS103GHC1G	Taiwan Semiconductor Corporation	Active	200 V	1 A	1.1 V @ 1 A	2 µA @ 200 V	-55°C ~ 150°C (TJ)	4-SMD, Gull Wing	841 Pcs
DF02S-E3/45	Vishay General Semiconductor - Diodes Division	Active	200 V	1 A	1.1 V @ 1 A	5 µA @ 200 V	-55°C ~ 150°C (TJ)	4-SMD, Gull Wing	3480 Pcs
DF02SA-E3/45	Vishay General Semiconductor - Diodes Division	Active	200 V	1 A	1.1 V @ 1 A	5 µA @ 200 V	-55°C ~ 150°C (TJ)	4-SMD, Gull Wing	652 Pcs

Engineering Selection Recommendations

Primary Selection: DF02S-HF (Comchip Technology) is the manufacturer-recommended substitute, maintaining identical electrical and mechanical specifications with active product status and ROHS3 compliance.

Secondary Selection: DF02S-E3/45 (Vishay General Semiconductor - Diodes Division) offers the highest inventory availability (3480 Pcs) with active product status, ROHS3 compliance, and identical core electrical parameters. This part is supplied in Tube packaging.

Alternative Selection: DBLS103G C1G or DBLS103GHC1G (Taiwan Semiconductor Corporation) provide active product status with improved reverse leakage characteristics (2 µA @ 200 V). DBLS103GHC1G includes AEC-Q101 automotive qualification for applications requiring automotive-grade components.

All substitute parts are ROHS3 compliant, MSL 1 (Unlimited), and REACH unaffected, matching the compliance profile of the original DF02S-G.

Frequently Asked Questions (FAQ)

Q: Can DF02S-HF directly replace DF02S-G in existing designs? A: Yes. DF02S-HF maintains identical electrical specifications (200V, 1A, 1.1V forward voltage) and mechanical compatibility (4-SMD Gull Wing package) with active product status.

Q: What is the difference between DBLS103G C1G and DBLS103GHC1G? A: Both parts share identical electrical specifications and package configuration. DBLS103GHC1G includes AEC-Q101 automotive qualification, suitable for automotive applications requiring grade certification.

Q: Why do reverse leakage currents vary among substitutes? A: Reverse leakage current variations (2 µA to 10 µA @ 200 V) reflect different manufacturing processes across suppliers. All values remain within acceptable operational parameters for single-phase bridge rectifier applications at 200V rating.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All listed substitute parts are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, matching the compliance requirements of the original DF02S-G.

Q: Which substitute offers the best availability? A: DF02S-E3/45 (Vishay) provides the highest inventory level at 3480 Pcs with active product status and identical electrical specifications.

Q: Can I use DBLS103G C1G in automotive applications? A: DBLS103G C1G is not automotive-qualified. For automotive applications, use DBLS103GHC1G, which carries AEC-Q101 qualification.

Q: What packaging formats are available for substitutes? A: DF02S-HF, DBLS103G C1G, and DBLS103GHC1G are supplied in standard packaging. DF02S-E3/45 and DF02SA-E3/45 are supplied in Tube packaging.

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