DF208ST-G Bridge Rectifier Equivalent & Substitute Parts

Part Overview

The DF208ST-G is a single-phase bridge rectifier manufactured by Comchip Technology, rated for 800 V peak reverse voltage and 2 A average rectified current. This component is classified as obsolete, which necessitates identification of equivalent substitute parts for ongoing design support and procurement continuity. The DF208ST-G operates across a temperature range of -55°C to 150°C and is packaged in a 4-SMD Gull Wing surface mount configuration.

Substiute Parts

DF208ST-G

Comchip TechnologyIn Stock: 1165DF208ST-G Datasheet

Current PartRFQ

DF208S-G

Comchip TechnologyIn Stock: 1097DF208S-G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the DF208ST-G are identified based on electrical and mechanical parameter equivalence. The critical parameters determining substitution eligibility are:

• Diode Type: Single Phase
• Technology: Standard
• Voltage - Peak Reverse (Max): 800 V
• Current - Average Rectified (Io): 2 A
• Voltage - Forward (Vf) (Max) @ If: 1.1 V @ 2 A
• Current - Reverse Leakage @ Vr: 10 µA @ 800 V
• Operating Temperature Range: -55°C to 150°C (TJ)
• Mounting Type: Surface Mount
• Package / Case: 4-SMD, Gull Wing

The DF208S-G meets all electrical and mechanical requirements for direct substitution. Both parts share identical electrical specifications, temperature operating range, and package configuration. The primary distinction is product status and packaging format.

Parameter Comparison

Engineering Selection Recommendations

The DF208S-G is the manufacturer-recommended substitute for the obsolete DF208ST-G. Both components are manufactured by Comchip Technology and maintain identical electrical performance specifications across all rated parameters. The DF208S-G carries active product status, ensuring continued availability and supply chain support. Both parts maintain ROHS3 compliance and identical moisture sensitivity classification, confirming regulatory and environmental equivalence. The DF208S-G is suitable for direct replacement in applications currently utilizing the DF208ST-G without circuit redesign or performance degradation.

Frequently Asked Questions (FAQ)

Q: Can the DF208S-G replace the DF208ST-G in existing designs?

A: Yes. The DF208S-G is electrically and mechanically equivalent to the DF208ST-G. All electrical parameters, temperature operating range, and package configuration are identical. The primary difference is product status; the DF208S-G is active while the DF208ST-G is obsolete.

Q: What is the difference between DF208ST-G and DF208S-G?

A: The DF208ST-G and DF208S-G differ in product status and packaging format. The DF208ST-G is obsolete, while the DF208S-G is active. Electrical specifications, temperature range, and mounting configuration are identical.

Q: Are there any compliance or certification differences between these parts?

A: No. Both the DF208ST-G and DF208S-G maintain ROHS3 compliance, identical moisture sensitivity level (MSL 1), and equivalent REACH and ECCN classifications.

Q: What are the critical electrical parameters for substitution?

A: Substitution eligibility is determined by matching voltage rating (800 V peak reverse), current rating (2 A average rectified), forward voltage (1.1 V @ 2 A), reverse leakage current (10 µA @ 800 V), and operating temperature range (-55°C to 150°C).

Q: Is the 4-SMD Gull Wing package identical between both parts?

A: Yes. Both the DF208ST-G and DF208S-G use the same 4-SMD Gull Wing surface mount package configuration, ensuring PCB layout and assembly compatibility.