Equivalent & Substitute Parts for Microchip Technology S3610

Part Overview

The Microchip Technology S3610 is an active general-purpose rectifier diode rated for 100V DC reverse voltage and 70A average rectified current in a DO-203AB stud mount package. This component is designed for standard recovery applications requiring robust thermal management through chassis or stud mounting configurations. Substitute parts are identified to provide alternative sourcing options when the primary part number becomes unavailable or when inventory constraints necessitate component alternatives that maintain electrical and mechanical compatibility within specified parameter tolerances.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	100	V
Current - Average Rectified (Io)	70	A
Voltage - Forward (Vf) (Max) @ If	1.25 V @ 200 A	V @ A
Current - Reverse Leakage @ Vr	25	µA @ 100 V
Speed	Standard Recovery >500ns, > 200mA (Io)	-
Mounting Type	Stud Mount	-
Package / Case	DO-203AB, DO-5, Stud	-
Operating Temperature - Junction	-65 to 200	°C

Substitute Part Grouping Explanation

Substitution eligibility for the S3610 is determined by the following critical parameters:

Mandatory Matching Parameters:

Voltage - DC Reverse (Vr) (Max): 100V
Package / Case: DO-203AB (DO-5) Stud Mount
Speed Classification: Standard Recovery >500ns, > 200mA (Io)
Operating Temperature Range: Compatible with -65°C to 200°C junction temperature

Current Rating Consideration: The S3610 is rated for 70A average rectified current. Substitute parts with lower current ratings (such as 40A) operate within the same voltage and package specifications but with reduced current capacity. Such substitutes are applicable only in circuits where the actual operating current does not exceed the substitute part's rated current.

Forward Voltage Characteristics: Forward voltage specifications vary between the main part and substitute options. Both parts maintain standard recovery characteristics and operate within the same voltage class and package envelope.

Parameter Comparison

Parameter	S3610 (Microchip)	VS-40HF10 (Vishay)	Unit
Manufacturer	Microchip Technology	Vishay General Semiconductor - Diodes Division	-
Voltage - DC Reverse (Vr) (Max)	100	100	V
Current - Average Rectified (Io)	70	40	A
Voltage - Forward (Vf) (Max) @ If	1.25 V @ 200 A	1.3 V @ 125 A	V @ A
Current - Reverse Leakage @ Vr	25	9	µA @ 100 V
Speed	Standard Recovery >500ns, > 200mA (Io)	Standard Recovery >500ns, > 200mA (Io)	-
Mounting Type	Stud Mount	Chassis, Stud Mount	-
Package / Case	DO-203AB, DO-5, Stud	DO-203AB, DO-5, Stud	-
Operating Temperature - Junction	-65 to 200	-65 to 190	°C
Product Status	Active	Active	-
REACH Status	REACH Unaffected	REACH Unaffected	-
ECCN	EAR99	EAR99	-

Engineering Selection Recommendations

Primary Part (S3610): The S3610 maintains active product status with full availability and REACH compliance. This part is the preferred selection for applications requiring the full 70A current rating within the 100V voltage class and DO-203AB package specification.

Substitute Part (VS-40HF10): The VS-40HF10 is an active product from Vishay General Semiconductor - Diodes Division, rated for 40A average rectified current at 100V reverse voltage in the identical DO-203AB stud mount package. This substitute is suitable for applications where the circuit operating current does not exceed 40A. The VS-40HF10 carries RoHS3 compliance and REACH Unaffected status, matching the regulatory profile of the primary part. The maximum junction temperature of 190°C is 10°C lower than the S3610, which must be considered in thermal design calculations.

Both parts share identical voltage ratings, package specifications, recovery speed classifications, and export control designations (EAR99, HTSUS 8541.10.0080).

Frequently Asked Questions (FAQ)

Q: Can the VS-40HF10 be used as a direct replacement for the S3610?

A: The VS-40HF10 is electrically and mechanically compatible with the S3610 in applications where the average rectified current does not exceed 40A. Both parts operate at 100V reverse voltage in the DO-203AB stud mount package with identical recovery speed characteristics. The substitution is valid only when circuit current requirements fall within the 40A rating of the VS-40HF10.

Q: What are the key differences between these parts?

A: The primary differences are current rating (S3610: 70A vs. VS-40HF10: 40A), maximum junction temperature (S3610: 200°C vs. VS-40HF10: 190°C), forward voltage characteristics (S3610: 1.25V @ 200A vs. VS-40HF10: 1.3V @ 125A), and reverse leakage current (S3610: 25µA vs. VS-40HF10: 9µA at 100V). Voltage rating, package type, and recovery speed remain identical.

Q: Are both parts available in the same package configuration?

A: Yes. Both the S3610 and VS-40HF10 are supplied in the DO-203AB (DO-5) stud mount package. The VS-40HF10 additionally supports chassis mounting, providing additional installation flexibility.

Q: What compliance certifications apply to these parts?

A: Both parts carry REACH Unaffected status and EAR99 export control classification. The VS-40HF10 is RoHS3 compliant with Moisture Sensitivity Level 1 (Unlimited).

Q: How does the reverse leakage current difference affect circuit performance?

A: The S3610 exhibits 25µA reverse leakage at 100V, while the VS-40HF10 exhibits 9µA at the same voltage. Lower reverse leakage in the VS-40HF10 may provide improved performance in high-impedance circuits or applications sensitive to leakage current. This parameter must be evaluated against specific circuit requirements.

Q: Can the S3610 be substituted with the VS-40HF10 in high-current applications?

A: No. The VS-40HF10 is rated for 40A average rectified current, which is 30A below the S3610 rating. Substitution in applications requiring current above 40A will result in component overstress and potential failure. The S3610 must be retained for applications requiring the full 70A capacity.

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