STPSC10H12B-TR1 Equivalent & Substitute Parts

Part Overview

The STPSC10H12B-TR1 is a silicon carbide Schottky diode rated for 1200 V DC reverse voltage and 10 A average rectified current in a surface mount DPAK package. This component is classified as obsolete, necessitating identification of active equivalent and substitute parts for new designs and ongoing production requirements. The part belongs to the ECOPACK® series and utilizes SiC technology for high-efficiency rectification applications.

Substiute Parts

STPSC10H12B-TR1

STMicroelectronicsIn Stock: 768STPSC10H12B-TR1 Datasheet

Current PartRFQ

STPSC10H12B2-TR

STMicroelectronicsIn Stock: 1509STPSC10H12B2-TR Datasheet

DirectRFQ

IDM08G120C5XTMA1

Infineon TechnologiesIn Stock: 3416IDM08G120C5XTMA1 Datasheet

SimilarRFQ

S4D10120E

SMC Diode SolutionsIn Stock: 2165S4D10120E Datasheet

SimilarRFQ

SICRD101200

SMC Diode SolutionsIn Stock: 952SICRD101200 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the STPSC10H12B-TR1 is determined by the following critical parameters:

Primary Substitution Criteria:

• Voltage - DC Reverse (Vr) (Max): 1200 V minimum
• Current - Average Rectified (Io): 10 A minimum
• Package / Case: TO-252-3, DPAK (2 Leads + Tab), SC-63
• Technology: SiC (Silicon Carbide) Schottky
• Mounting Type: Surface Mount

Secondary Compatibility Factors:

• Reverse Recovery Time (trr): 0 ns (characteristic of SiC technology)
• Operating Temperature Range: -40°C to 175°C minimum
• Forward Voltage (Vf): Operational compatibility within specified current ratings

Parts are grouped into two categories:

Direct Equivalent: STPSC10H12B2-TR maintains identical electrical specifications and package configuration while offering active product status and improved compliance certifications.

Similar Substitutes: IDM08G120C5XTMA1, S4D10120E, and SICRD101200 provide functional equivalence with variations in forward voltage, reverse leakage current, and capacitance characteristics. These parts maintain the 1200 V / 10 A (or 8 A for IDM08G120C5XTMA1) rating and identical package footprint.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: STPSC10H12B2-TR

The STPSC10H12B2-TR is the direct equivalent replacement for the obsolete STPSC10H12B-TR1. This part maintains identical electrical specifications including 1200 V reverse voltage, 10 A current rating, 1.5 V forward voltage at 10 A, and 725 pF capacitance. Both parts share the same DPAK package footprint and SiC Schottky technology. The STPSC10H12B2-TR holds active product status and ROHS3 compliance certification. The primary difference is the increased moisture sensitivity level (MSL 3 versus MSL 1), which requires controlled storage conditions during 168-hour periods. This part is suitable for direct substitution in existing designs without circuit modifications.

Secondary Recommendations: S4D10120E and SICRD101200

Both S4D10120E and SICRD101200 from SMC Diode Solutions provide functional equivalence with 1200 V reverse voltage and 10 A current ratings in identical DPAK packages. These parts feature lower reverse leakage currents (30 µA and 100 µA respectively, compared to 60 µA in the original part) and slightly elevated forward voltages (1.8 V at 10 A versus 1.5 V). Both hold active product status and ROHS3 compliance. However, both parts carry REACH Affected status, which may impose regulatory restrictions depending on application jurisdiction. These parts are suitable for applications where reverse leakage minimization is beneficial and REACH compliance is not a constraint.

Alternative Consideration: IDM08G120C5XTMA1

The IDM08G120C5XTMA1 from Infineon Technologies provides a functional alternative with 1200 V reverse voltage in the same DPAK package. This part is rated for 8 A average rectified current, representing a 20% reduction from the 10 A specification of the original part. The forward voltage is 1.95 V at 8 A, and reverse leakage is 40 µA at 1200 V. This part holds active product status, ROHS3 compliance, and REACH Unaffected status. The IDM08G120C5XTMA1 is suitable only for applications where the 8 A current rating meets design requirements and where the extended operating temperature range (-55°C to 175°C) provides additional margin.

Frequently Asked Questions (FAQ)

Q: Can STPSC10H12B2-TR be used as a direct replacement for STPSC10H12B-TR1?

A: Yes. The STPSC10H12B2-TR is a direct equivalent with identical electrical specifications and package configuration. The primary difference is moisture sensitivity level (MSL 3 versus MSL 1), requiring controlled storage during 168-hour periods. No circuit modifications are required.

Q: What is the significance of the 10 A versus 8 A current rating difference between STPSC10H12B-TR1 and IDM08G120C5XTMA1?

A: The IDM08G120C5XTMA1 is rated for 8 A average rectified current, while the original part is rated for 10 A. This represents a 20% reduction in current capacity. The IDM08G120C5XTMA1 is suitable only for applications where the circuit design operates at or below 8 A. Exceeding this rating may result in component failure or reduced reliability.

Q: Are all substitute parts compatible with the same PCB footprint?

A: Yes. All substitute parts listed use the TO-252-3 DPAK (2 Leads + Tab) package configuration, designated as SC-63. The physical footprint and pin configuration are identical, allowing direct PCB layout compatibility without redesign.

Q: What does REACH Affected status mean for S4D10120E and SICRD101200?

A: REACH Affected status indicates that these parts may contain substances of concern under European Union REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) regulations. Applications subject to REACH compliance requirements should select REACH Unaffected alternatives such as STPSC10H12B2-TR or IDM08G120C5XTMA1.

Q: How do forward voltage differences affect circuit performance?

A: Forward voltage differences between substitute parts range from 1.5 V (STPSC10H12B-TR1 and STPSC10H12B2-TR) to 1.95 V (IDM08G120C5XTMA1) at their respective rated currents. Higher forward voltages result in increased power dissipation and heat generation. Circuit designs with tight thermal budgets or efficiency requirements should account for these variations. The 0.3 V to 0.45 V differences are typically manageable in most rectification applications but should be evaluated in high-power or thermally constrained designs.

Q: What is the impact of reverse leakage current variations?

A: Reverse leakage current ranges from 30 µA (S4D10120E) to 100 µA (SICRD101200) at 1200 V. Higher reverse leakage increases standby power consumption and heat generation. Applications with stringent leakage requirements or extended standby operation should prioritize parts with lower reverse leakage specifications. The original part specification of 60 µA represents a mid-range value among available substitutes.

Q: Can the extended operating temperature range of IDM08G120C5XTMA1 (-55°C to 175°C) be considered an advantage?

A: The extended lower temperature limit of -55°C (compared to -40°C for the original part) provides additional margin for applications operating in cold environments. However, this advantage is only relevant if the application requires operation below -40°C. For standard industrial temperature ranges, this difference is not a functional advantage.

Q: What does MSL 3 (168 Hours) mean for STPSC10H12B2-TR?

A: Moisture Sensitivity Level 3 (168 Hours) indicates that the component can be exposed to ambient conditions (typically 30°C, 60% relative humidity) for a maximum of 168 hours after packaging before requiring baking to remove absorbed moisture. Components exceeding this exposure period must be baked at specified temperatures before soldering to prevent delamination or internal damage. MSL 1 (Unlimited) components have no such time restriction.