STPS20SM60SR Equivalent & Substitute Parts

Part Overview

The STPS20SM60SR is a Schottky rectifier diode manufactured by STMicroelectronics, rated for 60 V DC reverse voltage and 20 A average rectified current. The device is packaged in a TO-262-3 Long Leads (I2PAK) configuration for through-hole mounting applications. This part is classified as obsolete, necessitating identification of active equivalent alternatives for continued system support and new design implementations.

Substiute Parts

STPS20SM60SR

STMicroelectronicsIn Stock: 1851STPS20SM60SR Datasheet

Current PartRFQ

MBR2060CT-1

SMC Diode SolutionsIn Stock: 1012MBR2060CT-1 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the STPS20SM60SR is determined by the following critical electrical and mechanical parameters:

Voltage Rating: The substitute part must maintain a DC reverse voltage rating of 60 V to ensure equivalent blocking capability in the application circuit.

Package Configuration: The substitute must use the TO-262-3 Long Leads (I2PAK, TO-262AA) package to ensure mechanical and thermal compatibility with existing PCB layouts and mounting infrastructure.

Technology Type: Schottky diode technology is required to maintain fast recovery characteristics and forward voltage performance consistent with the original design.

Mounting Method: Through-hole mounting compatibility is mandatory for direct replacement in legacy and current production designs.

Compliance Standards: RoHS3 compliance is required for regulatory alignment with current manufacturing and distribution requirements.

The MBR2060CT-1 qualifies as a substitute based on matching voltage rating, package type, Schottky technology, through-hole mounting, and RoHS3 compliance. However, the MBR2060CT-1 is configured as a diode array (1 Pair Common Cathode) rather than a single diode, requiring circuit-level evaluation for application compatibility.

Parameter Comparison

Engineering Selection Recommendations

The MBR2060CT-1 is an active substitute for the obsolete STPS20SM60SR based on matching voltage rating, package type, Schottky technology, and RoHS3 compliance. Both devices are rated for 60 V DC reverse voltage and feature fast recovery characteristics in identical TO-262-3 Long Leads packages.

The primary distinction is the diode configuration: the STPS20SM60SR is a single diode, while the MBR2060CT-1 is a diode array with 1 Pair Common Cathode configuration. This structural difference requires verification of circuit topology compatibility before implementation. The MBR2060CT-1 exhibits higher forward voltage (800 mV @ 10 A versus 630 mV @ 20 A) and elevated reverse leakage current (1 mA @ 60 V versus 85 µA @ 60 V), which may impact thermal performance and power dissipation in high-current applications.

The MBR2060CT-1 provides extended operating temperature range (−55°C to 150°C) compared to the STPS20SM60SR maximum junction temperature specification of 150°C, offering improved thermal margin in cold-environment applications.

Frequently Asked Questions (FAQ)

Q: Can the MBR2060CT-1 directly replace the STPS20SM60SR in all applications?

A: Direct replacement requires circuit-level compatibility assessment. The MBR2060CT-1 is a diode array with common cathode configuration, whereas the STPS20SM60SR is a single diode. Applications using only one diode element of the array may proceed with substitution; applications requiring dual independent diodes must evaluate the common cathode topology against original circuit requirements.

Q: What are the key electrical differences between these parts?

A: The MBR2060CT-1 exhibits higher forward voltage drop (800 mV @ 10 A) and higher reverse leakage current (1 mA @ 60 V) compared to the STPS20SM60SR (630 mV @ 20 A and 85 µA @ 60 V, respectively). These differences affect power dissipation and thermal design calculations. Both devices maintain identical 60 V reverse voltage rating and fast recovery speed characteristics.

Q: Are the packages mechanically identical?

A: Both devices use the TO-262-3 Long Leads (I2PAK, TO-262AA) package for through-hole mounting. Mechanical compatibility with existing PCB layouts and mounting infrastructure is confirmed.

Q: What compliance certifications apply to both parts?

A: Both the STPS20SM60SR and MBR2060CT-1 are ROHS3 compliant. The MBR2060CT-1 is REACH Affected, while the STPS20SM60SR is REACH Unaffected. Both carry EAR99 export classification and HTSUS code 8541.10.0080.

Q: Does the MBR2060CT-1 offer improved temperature performance?

A: The MBR2060CT-1 specifies an operating temperature range of −55°C to 150°C, providing extended low-temperature capability compared to the STPS20SM60SR maximum junction temperature of 150°C. This extended range supports applications requiring cold-environment operation.

Q: What is the current rating difference between these devices?

A: The STPS20SM60SR is rated for 20 A average rectified current. The MBR2060CT-1 does not specify average rectified current per diode in the provided data. Circuit design must account for the diode array configuration and current distribution across the common cathode pair.