STPS20M60ST Equivalent & Substitute Parts

Part Overview

The STPS20M60ST is a Schottky rectifier diode rated for 60 V DC reverse voltage and 20 A average rectified current in a Through Hole TO-220-3 package. Manufactured by STMicroelectronics, this component is classified as Obsolete. Due to its obsolete status, equivalent and substitute parts from active manufacturers are necessary for new designs and ongoing production requirements. Suitable alternatives maintain the same voltage and current ratings while offering active product status and improved availability.

Substiute Parts

STPS20M60ST

STMicroelectronicsIn Stock: 1036STPS20M60ST 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

MBR1660-E3/45

Vishay General Semiconductor - Diodes DivisionIn Stock: 2162MBR1660-E3/45 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the STPS20M60ST is determined by the following critical parameters:

Voltage Rating: All substitute parts must maintain a DC reverse voltage rating of 60 V to ensure safe operation within the same circuit topology.

Current Rating: Substitute parts must support a minimum average rectified current of 20 A per diode to meet load requirements. Parts with lower current ratings (such as 16 A) are classified as similar alternatives rather than direct substitutes.

Technology: All substitutes employ Schottky diode technology, maintaining fast recovery characteristics (≤ 500ns, > 200mA).

Mounting and Package: Direct substitutes use Through Hole mounting with TO-220-3 package configuration. Variations in package designation (TO-220AB, ITO-220S) represent mechanical and thermal interface differences but maintain electrical compatibility within the TO-220 family.

Forward Voltage Characteristics: Forward voltage drop varies among substitutes. The STPS20M60ST specifies 565 mV @ 20 A, while alternatives range from 690 mV to 950 mV @ 20 A. This parameter affects power dissipation and thermal management.

Reverse Leakage Current: Leakage specifications range from 100 µA to 1 mA @ 60 V across available substitutes, affecting standby power consumption.

Product Status and Compliance: Active product status and RoHS3 compliance are prioritized for new applications. REACH status variations are noted for regulatory environments.

Parameter Comparison

Engineering Selection Recommendations

Direct Substitutes (20 A Rating, 60 V):

MBR2060CT (Taiwan Semiconductor Corporation) is an active product offering 20 A current capacity at 60 V reverse voltage with a standard TO-220-3 package. This part provides the closest electrical match to the STPS20M60ST with improved availability and active product status. Forward voltage is elevated at 950 mV @ 20 A compared to the original 565 mV, resulting in increased power dissipation that must be evaluated in thermal design.

MBR2060CTP (Diodes Incorporated) maintains 20 A and 60 V ratings with an isolated tab variant (ITO-220S package). This configuration provides electrical isolation between the tab and the semiconductor junction, beneficial in applications requiring isolated heat sinking. Product status is obsolete; however, inventory availability remains substantial. Forward voltage characteristics match MBR2060CT at 950 mV @ 20 A.

MBR2060CTL (SMC Diode Solutions) is an active product in the 60 V class with a standard TO-220-3 package. Current rating is not specified in available documentation. Forward voltage is specified at 690 mV @ 10 A, representing an intermediate value between the original part and higher-voltage alternatives. Operating temperature range is limited to -55°C ~ 125°C, reducing the maximum junction temperature by 25°C compared to the original specification.

Similar Alternative (16 A Rating, 60 V):

MBR1660-E3/45 (Vishay General Semiconductor - Diodes Division) is an active product with a reduced current rating of 16 A at 60 V reverse voltage. This part is suitable for applications where the 20 A requirement can be reduced or where design margins permit lower current capacity. Forward voltage is 750 mV @ 16 A. Operating temperature range extends to -65°C, providing enhanced low-temperature performance.

Selection Criteria:

For applications requiring full 20 A capacity at 60 V with active product status, MBR2060CT is the primary recommendation. Thermal design must accommodate the higher forward voltage drop. For applications with isolated tab requirements, MBR2060CTP provides this mechanical feature despite obsolete status. For reduced current applications or enhanced low-temperature performance, MBR1660-E3/45 offers an active alternative with different electrical characteristics.

Frequently Asked Questions (FAQ)

Q: Can MBR2060CT directly replace STPS20M60ST in all applications?

A: MBR2060CT maintains the same 60 V and 20 A electrical ratings and TO-220-3 package configuration. However, the forward voltage is significantly higher (950 mV vs. 565 mV @ 20 A), resulting in approximately 7.7 W additional power dissipation at full current. Thermal management and circuit performance must be re-evaluated. The diode configuration differs (1 Pair Common Cathode vs. single diode), which affects circuit topology compatibility.

Q: What is the difference between TO-220-3 and ITO-220S packages?

A: Both are Through Hole TO-220 family packages with three leads. The ITO-220S designation indicates an isolated tab variant, where the mounting tab is electrically isolated from the semiconductor junction. Standard TO-220-3 packages have the tab connected to one of the internal leads. Isolated tab packages are used when the heat sink must be at a different potential than the diode leads.

Q: Why does MBR1660-E3/45 have a lower current rating?

A: MBR1660-E3/45 is rated for 16 A average rectified current compared to 20 A for the STPS20M60ST. This represents a different device within the Schottky rectifier family. It is classified as a similar alternative rather than a direct substitute. Selection depends on whether the application circuit can operate at reduced current capacity.

Q: How does reverse leakage current affect circuit performance?

A: Reverse leakage current flows when the diode is reverse-biased (blocking state). The STPS20M60ST specifies 125 µA @ 60 V, while substitutes range from 100 µA to 1 mA. Higher leakage increases standby power consumption and affects precision analog circuits. For most power rectification applications, this difference is negligible. For low-power or precision applications, lower leakage specifications are preferred.

Q: Are all substitute parts RoHS3 compliant?

A: Yes, all listed substitute parts carry RoHS3 compliance certification. REACH status varies: MBR2060CT and MBR1660-E3/45 are REACH Unaffected, while MBR2060CTL and MBR2060CTP are REACH Affected. Regulatory requirements for the target market determine which compliance status is necessary.

Q: What is the significance of the "1 Pair Common Cathode" configuration in MBR2060 variants?

A: This configuration indicates the part contains two diodes with a shared cathode connection, forming a diode array. The STPS20M60ST is a single diode. Applications using single-diode rectification can utilize one diode of the pair, leaving the second diode unused. Applications requiring dual-diode functionality benefit from the integrated configuration. Circuit topology must be verified for compatibility.

Q: Can MBR2060CTL be used if current rating is not specified?

A: MBR2060CTL documentation does not provide an explicit average rectified current rating. Forward voltage is specified at 690 mV @ 10 A, suggesting reliable operation at 10 A minimum. Use in 20 A applications is not supported by available specifications and requires direct manufacturer confirmation before implementation.