STPS20SM60ST Equivalent & Substitute Parts

Part Overview

The STPS20SM60ST is a Schottky rectifier diode manufactured by STMicroelectronics, rated for 60 V DC reverse voltage and 20 A average rectified current in a Through Hole TO-220-3 package. This component is classified as Obsolete, necessitating identification of equivalent substitute parts for ongoing design requirements and procurement needs. Substitute parts must maintain electrical compatibility across voltage, current, and thermal specifications while accommodating available packaging variants.

Substiute Parts

STPS20SM60ST

STMicroelectronicsIn Stock: 1925STPS20SM60ST Datasheet

Current PartRFQ

MBR2060CT

Taiwan Semiconductor CorporationIn Stock: 17204MBR2060CT Datasheet

DirectRFQ

MBR2060CTL

SMC Diode SolutionsIn Stock: 2810MBR2060CTL Datasheet

DirectRFQ

MBR2060CTP

Diodes IncorporatedIn Stock: 3708MBR2060CTP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the STPS20SM60ST is determined by the following critical parameters:

Mandatory Matching Criteria:

• Voltage - DC Reverse (Vr) (Max): 60 V
• Current - Average Rectified (Io): 20 A per diode
• Technology: Schottky
• Mounting Type: Through Hole
• Package / Case: TO-220-3 or compatible variant

Acceptable Variation Parameters:

• Voltage - Forward (Vf) (Max) @ If: Substitute parts may exhibit forward voltage values within the range of 630 mV to 950 mV at 20 A, reflecting manufacturing and design differences across suppliers
• Current - Reverse Leakage @ Vr: Substitute parts may range from 85 µA to 100 µA at 60 V
• Operating Temperature - Junction: Substitute parts rated to minimum -55°C and maximum 125°C to 150°C are acceptable

Package Variants:

• TO-220-3 standard package
• TO-220AB supplier designation
• ITO-220S (Isolated Tab variant)

The three identified substitute parts (MBR2060CT, MBR2060CTL, MBR2060CTP) satisfy these criteria with documented electrical equivalence and mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

MBR2060CT (Taiwan Semiconductor Corporation)

This part is the primary recommended substitute. It maintains Active product status, ensuring long-term availability and supply chain stability. The MBR2060CT is ROHS3 compliant and REACH Unaffected, providing regulatory alignment with the original STPS20SM60ST. Operating temperature range extends to 150°C maximum, matching the original specification. Forward voltage at 20 A is 950 mV, representing a 320 mV increase over the original part; this difference must be evaluated within the thermal and efficiency constraints of the target application. Reverse leakage current is 100 µA at 60 V, within acceptable tolerance of the original 85 µA specification.

MBR2060CTL (SMC Diode Solutions)

This part is suitable for applications where forward voltage characteristics are critical. The MBR2060CTL exhibits 690 mV forward voltage at 10 A, the lowest among substitute options. However, this part carries REACH Affected status, requiring compliance verification in regulated markets. Maximum operating temperature is limited to 125°C, 25°C below the original specification. Reverse leakage current is elevated at 1 mA at 60 V, representing a tenfold increase over the original part. This elevated leakage may impact applications with stringent standby power requirements. Active product status ensures availability.

MBR2060CTP (Diodes Incorporated)

This part is classified as Obsolete, matching the status of the original STPS20SM60ST. Selection of this substitute does not resolve the obsolescence concern and is not recommended for new designs requiring long-term component availability. The part features an Isolated Tab variant (ITO-220S package), which may be required for specific thermal or isolation requirements. Forward voltage and reverse leakage specifications match MBR2060CT. REACH Affected status applies.

Primary Selection Guidance:

For applications prioritizing supply chain continuity and regulatory compliance, MBR2060CT is the recommended substitute. For applications where forward voltage efficiency is the dominant selection criterion and thermal management is not constrained, MBR2060CTL may be considered with REACH compliance verification. MBR2060CTP is not recommended due to Obsolete status.

Frequently Asked Questions (FAQ)

Q: Can MBR2060CT be used as a direct replacement for STPS20SM60ST in all applications?

A: MBR2060CT satisfies the mandatory electrical parameters (60 V, 20 A, Schottky technology, TO-220-3 package). However, the forward voltage increase from 630 mV to 950 mV at 20 A results in higher power dissipation. Thermal design verification is required to confirm that heat dissipation capacity remains adequate in the target application.

Q: What is the significance of the diode configuration difference (single diode vs. 1 Pair Common Cathode)?

A: The STPS20SM60ST is a single diode device. The substitute parts (MBR2060CT, MBR2060CTL, MBR2060CTP) are diode arrays with 1 Pair Common Cathode configuration. In applications requiring only a single diode function, only one diode element of the array is utilized, and the second diode and common cathode connection remain unused. PCB layout and circuit design must accommodate this configuration difference.

Q: Why does MBR2060CTL have significantly higher reverse leakage current (1 mA vs. 85 µA)?

A: Reverse leakage current is a manufacturing and design characteristic that varies across suppliers and product lines. The 1 mA specification for MBR2060CTL is within acceptable limits for most rectifier applications but may impact applications with stringent standby power or low-current bias requirements. Comparative analysis of application-specific leakage current tolerance is necessary.

Q: Is the operating temperature range difference between MBR2060CTL (-55°C to 125°C) and the original part (-55°C to 150°C) significant?

A: The 25°C reduction in maximum junction temperature for MBR2060CTL may be significant in applications operating at elevated ambient temperatures or with high power dissipation. Thermal modeling of the target application is required to confirm that junction temperature remains below 125°C under worst-case operating conditions.

Q: What does REACH Affected status mean for MBR2060CTL and MBR2060CTP?

A: REACH Affected status indicates that the component or its manufacturing process is subject to European Union REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) regulations. Applications destined for EU markets or subject to EU regulatory requirements must verify compliance with REACH substance restrictions. The original STPS20SM60ST carries REACH Unaffected status, indicating no REACH-regulated substances are present.

Q: Can the ITO-220S (Isolated Tab) package variant of MBR2060CTP be used interchangeably with standard TO-220-3?

A: The ITO-220S package features an isolated tab, electrically separating the tab from the device leads. Standard TO-220-3 packages have a tab electrically connected to one of the internal leads. PCB layout, thermal interface design, and electrical connections must be verified for compatibility. Direct mechanical and electrical interchangeability is not guaranteed without design review.

Q: Which substitute part offers the best long-term availability?

A: MBR2060CT and MBR2060CTL both carry Active product status, ensuring continued manufacturing and supply. MBR2060CTP is Obsolete and does not provide long-term availability assurance. For new designs or applications requiring extended component lifecycle, MBR2060CT is the preferred selection.