FFSD0865A Silicon Carbide Schottky Diode 650V 15A DPAK Equivalent & Substitute Parts

Part Overview

The FFSD0865A is a silicon carbide Schottky diode manufactured by onsemi, rated for 650V DC reverse voltage and 15A average rectified current in a surface mount TO-252 (DPAK) package. This component is classified as Last Time Buy, indicating discontinued production status. Identification of equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support long-term product availability for applications requiring 650V SiC Schottky rectification.

Substiute Parts

FFSD0865A

onsemiIn Stock: 5395FFSD0865A Datasheet

Current PartRFQ

S3D08065E

SMC Diode SolutionsIn Stock: 1202S3D08065E Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the FFSD0865A is determined by the following critical parameters:

Mandatory Matching Criteria:

• Voltage - DC Reverse (Vr) (Max): 650V
• Technology: SiC (Silicon Carbide) Schottky
• Package / Case: TO-252-3, DPAK (2 Leads + Tab), SC-63
• Mounting Type: Surface Mount
• Operating Temperature Range: -55°C ~ 175°C minimum

Allowable Variation Criteria:

• Current - Average Rectified (Io): Equal to or greater than 15A
• Voltage - Forward (Vf) (Max) @ If: Equal to or less than 1.75V @ 8A
• Current - Reverse Leakage @ Vr: Equal to or less than 200µA @ 650V

The substitute part S3D08065E meets all mandatory matching criteria and operates within allowable variation parameters. The higher current rating (23A versus 15A) and lower reverse leakage (51µA versus 200µA) represent performance improvements compatible with the FFSD0865A application envelope.

Parameter Comparison

Engineering Selection Recommendations

FFSD0865A (onsemi): This component is designated Last Time Buy, indicating end-of-life status. Existing inventory of 5,300 pieces is available for immediate applications. The part maintains ROHS3 compliance and REACH unaffected status. Selection is appropriate for applications with existing design validation and short-term production requirements.

S3D08065E (SMC Diode Solutions): This substitute part carries Active product status, ensuring long-term availability and supply chain continuity. The component is manufactured by SMC Diode Solutions and maintains identical ROHS3 compliance and REACH unaffected status. Current inventory of 1,151 pieces supports production requirements. The higher current rating (23A) and superior reverse leakage characteristics (51µA) provide performance margin for thermal and electrical stress conditions. Selection is appropriate for new designs, long-term production programs, and applications requiring extended component lifecycle support.

Both parts are certified to identical regulatory standards (ROHS3, REACH unaffected, EAR99 ECCN classification, HTSUS 8541.10.0080).

Frequently Asked Questions (FAQ)

Q: Can S3D08065E directly replace FFSD0865A in existing PCB layouts?

A: Yes. Both components use identical TO-252-3 DPAK package geometry with 2 leads plus tab configuration. Pin-to-pin compatibility is confirmed. No PCB layout modifications are required.

Q: What is the significance of the higher current rating in S3D08065E (23A versus 15A)?

A: The S3D08065E is rated for 23A average rectified current compared to 15A for the FFSD0865A. This higher rating provides thermal margin and allows operation at higher current levels without exceeding junction temperature limits. For applications operating at or below 15A, the substitute part operates with additional design margin.

Q: Are there differences in forward voltage characteristics between these parts?

A: Forward voltage specifications are nearly identical. FFSD0865A specifies 1.75V maximum at 8A, while S3D08065E specifies 1.8V maximum at 8A. This 0.05V difference is within typical manufacturing tolerance and does not affect circuit performance in standard rectification applications.

Q: How do reverse leakage characteristics compare?

A: S3D08065E exhibits significantly lower reverse leakage (51µA @ 650V) compared to FFSD0865A (200µA @ 650V). Lower leakage reduces standby power dissipation and improves efficiency in applications with extended off-state operation.

Q: What is the impact of Last Time Buy status on FFSD0865A?

A: Last Time Buy designation indicates onsemi has discontinued production of this component. Existing inventory is available for purchase, but no future production is planned. For applications requiring long-term component availability, transition to S3D08065E is recommended.

Q: Are both parts suitable for high-temperature applications?

A: Yes. Both components specify identical operating junction temperature range of -55°C to 175°C. Thermal design considerations remain unchanged between parts.

Q: Do regulatory compliance certifications differ between these parts?

A: No. Both components maintain ROHS3 compliance, REACH unaffected status, and identical ECCN (EAR99) and HTSUS (8541.10.0080) classifications. Regulatory documentation requirements are equivalent.

Q: What is the moisture sensitivity level for both parts?

A: Both components are rated MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. Standard handling and storage procedures apply without special desiccant or humidity control requirements.