DF02S-HF Bridge Rectifier Equivalent & Substitute Parts

Part Overview

The DF02S-HF is a single-phase bridge rectifier manufactured by Comchip Technology, rated for 200 V peak reverse voltage and 1 A average rectified current. This component is designed for surface mount applications in standard rectification circuits requiring reliable performance across industrial temperature ranges. The part maintains Active product status with 803 units currently in stock.

Substitute parts become necessary when primary component availability is limited, when alternative suppliers offer improved lead times, or when design requirements permit selection from qualified equivalent devices that meet identical electrical and mechanical specifications.

Substiute Parts

DF02S-HF

Comchip TechnologyIn Stock: 905DF02S-HF Datasheet

Current PartRFQ

DF02S-E3/45

Vishay General Semiconductor - Diodes DivisionIn Stock: 3587DF02S-E3/45 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DF02S-HF is permitted with the DF02S-E3/45 based on matching electrical and mechanical parameters. The substitution logic is determined by the following criteria:

Electrical Parameters (Must Match):

• Voltage - Peak Reverse (Max): 200 V
• Current - Average Rectified (Io): 1 A
• Voltage - Forward (Vf) (Max) @ If: 1.1 V @ 1 A
• Operating Temperature Range: -55°C to 150°C (TJ)

Mechanical Parameters (Must Match):

• Diode Type: Single Phase
• Technology: Standard
• Mounting Type: Surface Mount
• Package / Case: 4-SMD, Gull Wing
• Supplier Device Package: DFS

The DF02S-E3/45 satisfies all required electrical and mechanical parameters, confirming functional equivalence for direct substitution in applications designed for the DF02S-HF.

Parameter Comparison

Engineering Selection Recommendations

DF02S-HF (Comchip Technology):

• Primary selection when Comchip supply chain is preferred
• Active product status with established manufacturing continuity
• Current inventory: 803 units
• ECCN classification: EAR99

DF02S-E3/45 (Vishay General Semiconductor - Diodes Division):

• Qualified substitute with identical electrical and mechanical specifications
• Active product status with extended inventory availability: 3480 units
• RoHS3 Compliant certification
• Moisture Sensitivity Level (MSL): 1 (Unlimited)
• REACH Unaffected status
• ECCN classification: EAR99
• Lower reverse leakage current (5 µA vs. 10 µA) provides enhanced performance margin

Both parts are classified under HTSUS code 8541.10.0080 and maintain equivalent regulatory compliance. Selection between these parts is determined by supplier availability, inventory requirements, and procurement lead time considerations.

Frequently Asked Questions (FAQ)

Q: Can the DF02S-E3/45 directly replace the DF02S-HF in existing designs?

A: Yes. The DF02S-E3/45 meets all electrical and mechanical specifications of the DF02S-HF, including voltage rating (200 V), current rating (1 A), forward voltage drop (1.1 V @ 1 A), operating temperature range (-55°C to 150°C), and package configuration (4-SMD, Gull Wing DFS). Direct substitution is supported without circuit modification.

Q: What is the significance of the different reverse leakage current values?

A: The DF02S-E3/45 exhibits 5 µA reverse leakage at 200 V, compared to 10 µA for the DF02S-HF. Both values are within acceptable operating parameters for standard bridge rectifier applications. The lower leakage in the Vishay part represents improved device characteristics and provides additional performance margin in leakage-sensitive applications.

Q: Are there packaging differences between these parts?

A: Both parts use identical packaging: 4-SMD, Gull Wing configuration with DFS supplier device package designation. The DF02S-HF is supplied in standard packaging, while the DF02S-E3/45 is supplied in Tube packaging. This difference affects only handling and storage procedures, not electrical or mechanical compatibility.

Q: What compliance certifications apply to these parts?

A: Both parts are classified as ECCN EAR99 and HTSUS 8541.10.0080. The DF02S-E3/45 carries additional certifications: RoHS3 Compliant, REACH Unaffected, and Moisture Sensitivity Level 1 (Unlimited). These certifications confirm suitability for regulated applications and extended storage conditions.

Q: Can these parts be used interchangeably in high-temperature applications?

A: Yes. Both parts maintain identical operating temperature specifications of -55°C to 150°C (TJ), confirming equivalent thermal performance across the full operating range. Selection between parts is not constrained by temperature requirements.

Q: What factors should determine part selection between DF02S-HF and DF02S-E3/45?

A: Selection is based on supplier availability, inventory levels, procurement lead times, and compliance requirements. The DF02S-E3/45 offers higher inventory availability (3480 units vs. 803 units) and additional compliance certifications. The DF02S-HF remains the primary choice when Comchip supply chain preference is specified.