SF65GHB0G Equivalent & Substitute Parts

Part Overview

The SF65GHB0G is a general-purpose rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 300V DC reverse voltage and 6A average rectified current in a DO-201AD axial through-hole package. This component is classified as Active product status with AEC-Q101 automotive qualification and ROHS3 compliance. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to component availability, supply chain considerations, or design flexibility within specified parameter tolerances.

Substiute Parts

SF65GHB0G

Taiwan Semiconductor CorporationIn Stock: 698SF65GHB0G Datasheet

Current PartRFQ

1N5403-E3/54

Vishay General Semiconductor - Diodes DivisionIn Stock: 16051N5403-E3/54 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SF65GHB0G is determined by strict equivalence in the following critical parameters:

Mandatory Equivalence Parameters:

• Voltage - DC Reverse (Vr) (Max): 300V minimum
• Package / Case: DO-201AD, Axial through-hole configuration
• Operating Temperature Range: -55°C to 150°C minimum
• RoHS Compliance: ROHS3 Compliant
• Mounting Type: Through Hole

Allowable Variation Parameters:

• Current - Average Rectified (Io): Substitute must equal or exceed 6A rating
• Voltage - Forward (Vf): Substitute forward voltage must not exceed specified maximum at rated current
• Reverse Recovery Time (trr): Substitute recovery speed classification must be compatible with circuit requirements
• Current - Reverse Leakage: Substitute leakage current must not exceed specified maximum

The identified substitute 1N5403-E3/54 shares identical voltage rating, package configuration, and temperature range. However, the substitute part is rated for 3A average rectified current, which is below the 6A requirement of the main part. This substitute is therefore suitable only for applications where the circuit current demand does not exceed 3A.

Parameter Comparison

Engineering Selection Recommendations

SF65GHB0G Selection Criteria: The SF65GHB0G is the primary component choice for applications requiring 6A average rectified current at 300V reverse voltage with fast recovery characteristics (35ns trr). This part carries AEC-Q101 automotive qualification, suitable for automotive and industrial applications with stringent reliability requirements. Active product status with 653 units in stock ensures availability for immediate deployment.

1N5403-E3/54 Selection Criteria: The 1N5403-E3/54 substitute is suitable only for circuits where average rectified current does not exceed 3A at 300V reverse voltage. This part is ROHS3 compliant and maintains equivalent reverse leakage characteristics. The standard recovery speed classification (>500ns) differs from the fast recovery specification of the main part. This substitute is appropriate for lower-current applications where recovery speed is not a critical design parameter. Product status is Active with 1500 units in stock.

Compliance Equivalence: Both parts maintain ROHS3 compliance, REACH unaffected status, and identical moisture sensitivity classification (MSL 1). Both operate across the -55°C to 150°C junction temperature range. Packaging is mechanically identical (DO-201AD axial through-hole).

Frequently Asked Questions (FAQ)

Q: Can the 1N5403-E3/54 be used as a direct replacement for the SF65GHB0G in all applications?

A: No. The 1N5403-E3/54 is rated for 3A average rectified current, while the SF65GHB0G is rated for 6A. Direct substitution is only valid for circuits where the actual current demand does not exceed 3A. Exceeding the 3A rating of the substitute part will result in component failure.

Q: What is the significance of the recovery speed difference between these parts?

A: The SF65GHB0G is classified as fast recovery (≤500ns, 35ns trr), while the 1N5403-E3/54 is standard recovery (>500ns). Fast recovery diodes are used in high-frequency switching applications where rapid reverse recovery is required. Standard recovery diodes are suitable for lower-frequency rectification. Circuit design must account for this difference.

Q: Are both parts suitable for automotive applications?

A: The SF65GHB0G carries AEC-Q101 automotive qualification. The 1N5403-E3/54 specifications provided do not include automotive qualification status. Automotive applications requiring AEC-Q101 qualification must use the SF65GHB0G.

Q: Is the DO-201AD package identical between both parts?

A: Yes. Both parts use the DO-201AD axial through-hole package configuration. Physical mounting and PCB layout are mechanically compatible.

Q: What is the difference in forward voltage between these diodes?

A: The SF65GHB0G has a maximum forward voltage of 1.3V at 6A, while the 1N5403-E3/54 has a maximum forward voltage of 1.2V at 3A. Forward voltage specifications are current-dependent and cannot be directly compared across different current ratings.

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

A: Both parts are ROHS3 compliant, REACH unaffected, and classified as MSL 1 (unlimited moisture sensitivity). Environmental and regulatory compliance are equivalent.

Q: What inventory considerations should be evaluated?

A: The SF65GHB0G has 653 units in stock, while the 1N5403-E3/54 has 1500 units in stock. Substitute selection based on availability should only occur when current rating requirements are satisfied.