STPSC8065D Silicon Carbide Schottky Diode Equivalent & Substitute Parts

Part Overview

The STPSC8065D is a 650V, 8A silicon carbide Schottky diode manufactured by STMicroelectronics in the TO-220AC package. This component is classified as Active product status and is part of the ECOPACK®2 series. The device is designed for through-hole mounting applications requiring high-voltage rectification with minimal reverse recovery time.

Substitute parts become necessary when the primary part reaches end-of-life status, inventory constraints occur, or design flexibility is required across multiple qualified suppliers. The STPSC8065DY represents a parametrically equivalent alternative from the same manufacturer with Obsolete product status. The UJ3D06508TS from Qorvo provides a cross-manufacturer equivalent with Active product status and extended temperature range capability.

Substiute Parts

STPSC8065D

STMicroelectronicsIn Stock: 3427STPSC8065D Datasheet

Current PartRFQ

STPSC8065DY

STMicroelectronicsIn Stock: 3684STPSC8065DY Datasheet

Parametric EquivalentRFQ

UJ3D06508TS

QorvoIn Stock: 29148UJ3D06508TS Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the STPSC8065D is determined by the following critical parameters:

Mandatory Matching Parameters:

• Voltage - DC Reverse (Vr) Maximum: 650V
• Current - Average Rectified (Io): 8A
• Technology: SiC (Silicon Carbide) Schottky
• Package / Case: TO-220-2
• Mounting Type: Through Hole
• Reverse Recovery Time (trr): 0 ns

Allowable Variation Parameters:

• Voltage - Forward (Vf) at rated current: Tolerance within component specification
• Current - Reverse Leakage: Lower values acceptable
• Capacitance @ Vr: Variation acceptable within application requirements
• Operating Temperature Range: Extended ranges acceptable
• Product Status: Active or Obsolete acceptable for equivalent function

The STPSC8065DY qualifies as a parametric equivalent, maintaining identical electrical specifications and package configuration while differing in product status and automotive qualification. The UJ3D06508TS qualifies as a similar manufacturer part, meeting all mandatory parameters with acceptable variations in forward voltage and reverse leakage characteristics.

Parameter Comparison

Engineering Selection Recommendations

STPSC8065D (Primary Selection)

The STPSC8065D maintains Active product status with full availability (3400 pcs in stock). This part is the preferred selection for new designs and production applications. It carries ROHS3 compliance and REACH Unaffected status, meeting regulatory requirements for industrial and commercial applications.

STPSC8065DY (Secondary Selection)

The STPSC8065DY provides parametric equivalence with identical electrical specifications and package configuration. However, this part carries Obsolete product status, indicating discontinued manufacturing. Selection of this substitute is appropriate only when existing inventory must be utilized or when design compatibility with legacy systems is required. The automotive-grade qualification (AEC-Q101) and Automotive designation provide additional qualification for automotive applications compared to the primary part.

UJ3D06508TS (Cross-Manufacturer Alternative)

The UJ3D06508TS from Qorvo qualifies as an Active product with extended operating temperature range (-55 to 175°C versus -40 to 175°C). This part exhibits lower reverse leakage current (50 µA versus 105 µA) and reduced capacitance (250 pF versus 540 pF), which may provide performance advantages in specific circuit topologies. The forward voltage specification is higher at 1.7V compared to 1.45V, requiring thermal and efficiency analysis for power-sensitive applications. Selection of this substitute is appropriate when multi-source qualification is required or when the extended temperature range and improved leakage characteristics provide system-level benefits.

Frequently Asked Questions (FAQ)

Q: Can STPSC8065DY be used as a direct replacement for STPSC8065D?

A: Yes, the STPSC8065DY provides direct parametric equivalence with identical voltage rating (650V), current rating (8A), forward voltage (1.45V @ 8A), reverse recovery time (0 ns), and package configuration (TO-220-2). The primary difference is product status (Obsolete versus Active). Substitution is electrically valid but inventory availability may be limited.

Q: What are the key differences between STPSC8065D and UJ3D06508TS?

A: Both parts share identical voltage and current ratings (650V, 8A) and package type (TO-220-2). The UJ3D06508TS exhibits higher forward voltage (1.7V versus 1.45V), lower reverse leakage (50 µA versus 105 µA), lower capacitance (250 pF versus 540 pF), and extended minimum operating temperature (-55°C versus -40°C). These differences require circuit-level evaluation for thermal performance and efficiency impact.

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

A: Yes, all three parts use the TO-220-2 package configuration with identical through-hole mounting requirements. PCB layout and thermal management considerations remain consistent across all three substitutes.

Q: Which substitute part should be selected for new production designs?

A: The STPSC8065D is the recommended selection for new production designs due to Active product status and established supply chain. The UJ3D06508TS provides a qualified cross-manufacturer alternative when multi-source strategy is required.

Q: Does the higher forward voltage of UJ3D06508TS affect circuit performance?

A: The 0.25V difference in forward voltage (1.7V versus 1.45V) results in increased power dissipation and heat generation. Circuit-level thermal analysis is required to determine if this difference impacts system performance, particularly in high-frequency switching applications or thermally constrained environments.

Q: Are all substitute parts RoHS and REACH compliant?

A: Yes, all three parts carry ROHS3 compliance and REACH Unaffected status, meeting regulatory requirements for industrial and commercial applications.

Q: What is the significance of the AEC-Q101 qualification on STPSC8065DY?

A: AEC-Q101 qualification indicates automotive-grade reliability testing and qualification. This certification is relevant only for automotive applications. For non-automotive industrial applications, this qualification provides no additional benefit.