FFSD10120A Silicon Carbide Schottky Diode Equivalent & Substitute Parts

Part Overview

The FFSD10120A is an active production silicon carbide Schottky diode rated for 1200 V DC reverse voltage with surface mount packaging in TO-252AA configuration. This component is manufactured by onsemi and designed for high-voltage rectification applications requiring zero reverse recovery time characteristics inherent to SiC Schottky technology. Substitute parts are identified when equivalent electrical performance parameters and mechanical compatibility are maintained across alternative manufacturers while preserving the core functional requirements of 1200 V operation and surface mount DPAK form factor.

Substiute Parts

FFSD10120A

onsemiIn Stock: 8033FFSD10120A Datasheet

Current PartRFQ

S4D10120E

SMC Diode SolutionsIn Stock: 2165S4D10120E Datasheet

SimilarRFQ

STPSC6H12B-TR1

STMicroelectronicsIn Stock: 1312STPSC6H12B-TR1 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the FFSD10120A are qualified based on the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Voltage - DC Reverse (Vr) (Max): 1200 V minimum
• Technology: SiC (Silicon Carbide) Schottky
• Package / Case: TO-252-3, DPAK (2 Leads + Tab), SC-63
• Mounting Type: Surface Mount
• Reverse Recovery Time (trr): 0 ns
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

Secondary Compatibility Parameters:

• Voltage - Forward (Vf) (Max) @ If: Within acceptable operating range
• Current - Reverse Leakage @ Vr: Acceptable for application requirements
• Product Status: Active

Substitutes are identified when all primary criteria are met and secondary parameters remain within functional tolerance for the intended application circuit.

Parameter Comparison

Engineering Selection Recommendations

FFSD10120A (onsemi) - Primary Component

The FFSD10120A is the specified component with active product status and ROHS3 compliance. This part is suitable for applications requiring 1200 V SiC Schottky rectification with surface mount DPAK packaging.

S4D10120E (SMC Diode Solutions) - Direct Substitute

The S4D10120E qualifies as a direct substitute with identical 1200 V reverse voltage rating, zero reverse recovery time, and TO-252-3 DPAK packaging. Forward voltage is 1.8 V at 10 A, representing a 0.05 V increase from the primary part. Reverse leakage current is 30 µA at 1200 V, lower than the primary component. Product status is active with ROHS3 compliance. REACH status is affected, requiring verification for applications subject to REACH regulations.

STPSC6H12B-TR1 (STMicroelectronics) - Conditional Substitute

The STPSC6H12B-TR1 meets the 1200 V reverse voltage requirement and zero reverse recovery time specification with identical TO-252-3 DPAK packaging. Current - Average Rectified (Io) is rated at 6 A, lower than the 10 A rating of the primary component. Forward voltage is 1.9 V at 6 A. Reverse leakage current is 400 µA at 1200 V, higher than the primary part. Product status is active with ROHS3 compliance and REACH unaffected status. This substitute is applicable only in circuits where the 6 A current rating is sufficient for the application requirements.

Frequently Asked Questions (FAQ)

Q: Can the S4D10120E replace the FFSD10120A in all applications?

A: The S4D10120E is electrically compatible with the FFSD10120A for 1200 V SiC Schottky rectification. Both parts share identical reverse voltage rating, zero reverse recovery time, and TO-252-3 DPAK packaging. Forward voltage differs by 0.05 V at 10 A. Reverse leakage current is lower in the S4D10120E. Substitution is valid when REACH compliance requirements do not restrict the use of parts with affected REACH status.

Q: Under what conditions is the STPSC6H12B-TR1 suitable as a substitute?

A: The STPSC6H12B-TR1 is suitable as a substitute when the application circuit operates at 6 A or below. The part maintains 1200 V reverse voltage rating and zero reverse recovery time. Forward voltage is 1.9 V at 6 A. Reverse leakage current is 400 µA at 1200 V. Applications requiring the full 10 A current capability of the primary component cannot use this substitute.

Q: Are all three parts compatible with the same PCB layout and footprint?

A: All three parts use the TO-252-3 DPAK (2 Leads + Tab) SC-63 package configuration. PCB footprints and land patterns are mechanically compatible across all three components. Thermal management considerations may differ due to variations in reverse leakage current and forward voltage characteristics.

Q: What is the significance of the zero reverse recovery time specification?

A: Zero reverse recovery time (trr = 0 ns) is a characteristic of silicon carbide Schottky diodes. This specification indicates the absence of stored charge recovery delay during reverse bias transition. All three parts in this comparison maintain this specification, enabling fast switching performance required in high-frequency rectification applications.

Q: How do reverse leakage current differences affect circuit performance?

A: Reverse leakage current at rated voltage determines standby power dissipation and circuit quiescent current. The FFSD10120A specifies 200 µA at 1200 V, the S4D10120E specifies 30 µA at 1200 V, and the STPSC6H12B-TR1 specifies 400 µA at 1200 V. Lower leakage current reduces standby power consumption. Higher leakage current increases heat generation during reverse bias operation. Selection depends on application power budget requirements.

Q: What packaging considerations apply to these surface mount diodes?

A: All three parts are surface mount components in TO-252-3 DPAK configuration with 2 leads plus tab. The tab provides thermal connection to the PCB ground plane. Moisture Sensitivity Level (MSL) is 1 (Unlimited) for all parts, indicating no moisture sensitivity restrictions during storage or handling. Standard surface mount assembly processes apply without special precautions.