Microchip Technology S3860 Equivalent & Substitute Parts

Part Overview

The Microchip Technology S3860 is a general-purpose rectifier diode rated for 600 V DC reverse voltage and 100 A average rectified current in a DO-203AB (DO-5) stud mount package. This component is classified as Active product status and utilizes standard recovery technology with a forward voltage of 1.15 V at 200 A. The diode operates across a junction temperature range of -65°C to 200°C and is suitable for high-current rectification applications requiring robust thermal management through stud mounting.

Equivalent and substitute parts are identified to provide design flexibility when the primary part number becomes unavailable, when inventory constraints exist, or when alternative supplier options are required for procurement optimization.

Substiute Parts

S3860

Microchip TechnologyIn Stock: 754S3860 Datasheet

Current PartRFQ

VS-85HFL60S05

Vishay General Semiconductor - Diodes DivisionIn Stock: 1006VS-85HFL60S05 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Microchip Technology S3860 is determined by the following critical parameters:

Mandatory Matching Parameters:

• Voltage - DC Reverse (Vr) (Max): 600 V
• Package / Case: DO-203AB (DO-5) Stud Mount
• Mounting Type: Stud Mount

Allowable Variation Parameters:

• Current - Average Rectified (Io): Substitute must equal or exceed 100 A
• Voltage - Forward (Vf): Substitute forward voltage must not exceed application requirements
• Current - Reverse Leakage: Substitute leakage current must not exceed application limits
• Operating Temperature - Junction: Substitute operating range must encompass application requirements
• Speed Classification: Substitute recovery speed classification may differ based on application tolerance

The Vishay General Semiconductor VS-85HFL60S05 is identified as a substitute part. This part maintains the same 600 V reverse voltage rating and DO-203AB stud mount package configuration. However, the average rectified current rating is 85 A, which is lower than the primary part's 100 A specification. This substitution is valid only for applications where the 85 A current rating is sufficient.

Parameter Comparison

Engineering Selection Recommendations

Primary Part: Microchip Technology S3860

The S3860 is the specified component and remains the first choice when availability and procurement timelines permit. This part is Active product status with REACH Unaffected compliance and EAR99 export classification. The component offers a 100 A average rectified current rating with standard recovery characteristics and operates across an extended junction temperature range of -65°C to 200°C.

Substitute Part: Vishay General Semiconductor VS-85HFL60S05

The VS-85HFL60S05 is an Active product substitute with identical REACH Unaffected and EAR99 compliance status. This part maintains the 600 V reverse voltage rating and DO-203AB stud mount package compatibility. The substitute part is suitable for applications where the 85 A average rectified current rating satisfies circuit requirements. The VS-85HFL60S05 features fast recovery characteristics (≤500ns) compared to the standard recovery (>500ns) of the primary part, which may provide performance benefits in switching applications. However, the operating temperature range is restricted to -40°C to 125°C, which is narrower than the primary part's -65°C to 200°C range. The forward voltage is higher at 1.75 V at 266.9 A, and reverse leakage current is elevated at 100 µA at 600 V compared to 25 µA for the primary part.

Both parts are Active product status and carry identical regulatory compliance classifications, ensuring equivalent supply chain and regulatory standing.

Frequently Asked Questions (FAQ)

Q: Can the VS-85HFL60S05 directly replace the S3860 in all applications?

A: The VS-85HFL60S05 is a substitute only for applications where the 85 A average rectified current rating is sufficient. The primary part S3860 is rated for 100 A. If the circuit design requires the full 100 A capability, the VS-85HFL60S05 is not suitable. Both parts share the same 600 V reverse voltage rating and DO-203AB stud mount package, ensuring mechanical and electrical interface compatibility at the voltage level.

Q: What are the key differences between these two parts?

A: The primary differences are: (1) Current rating: S3860 is 100 A versus VS-85HFL60S05 at 85 A; (2) Recovery speed: S3860 uses standard recovery (>500ns) while VS-85HFL60S05 uses fast recovery (≤500ns); (3) Forward voltage: S3860 is 1.15 V at 200 A versus VS-85HFL60S05 at 1.75 V at 266.9 A; (4) Reverse leakage: S3860 is 25 µA at 600 V versus VS-85HFL60S05 at 100 µA at 600 V; (5) Operating temperature range: S3860 spans -65°C to 200°C while VS-85HFL60S05 spans -40°C to 125°C.

Q: Are both parts available in the same package?

A: Yes. Both the S3860 and VS-85HFL60S05 are supplied in the DO-203AB (DO-5) stud mount package. The mechanical mounting interface is identical, allowing for direct physical substitution at the board level.

Q: What is the significance of the recovery speed difference?

A: The S3860 features standard recovery (>500ns) while the VS-85HFL60S05 features fast recovery (≤500ns). Fast recovery diodes exhibit shorter reverse recovery time, which reduces switching losses and improves efficiency in high-frequency switching applications. Standard recovery diodes are suitable for lower-frequency rectification circuits. The choice between these characteristics depends on the specific application frequency and efficiency requirements.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both the S3860 and VS-85HFL60S05 carry REACH Unaffected status and EAR99 export classification. Both parts are Active product status. Regulatory compliance is equivalent between the two parts.

Q: What should be considered when selecting between these parts?

A: Selection should be based on: (1) Required average rectified current capacity; (2) Operating temperature range requirements; (3) Forward voltage drop and power dissipation tolerance; (4) Reverse leakage current specifications; (5) Recovery speed requirements for the application frequency; (6) Availability and procurement lead time. The S3860 is the primary specification. The VS-85HFL60S05 is suitable only when the 85 A current rating and narrower temperature range (-40°C to 125°C) are acceptable for the application.