STPS40SM60CT Equivalent & Substitute Parts

Part Overview

The STPS40SM60CT is a Schottky diode array manufactured by STMicroelectronics, configured as 1 pair common cathode with a maximum reverse voltage rating of 60 V and average rectified current of 20 A per diode. The device is packaged in TO-220-3 through-hole configuration and is classified as Active product status with ROHS3 compliance. Equivalent and substitute parts are identified based on matching electrical characteristics, mechanical compatibility, and functional performance within the specified parameter ranges.

Substiute Parts

STPS40SM60CT

STMicroelectronicsIn Stock: 1253STPS40SM60CT Datasheet

Current PartRFQ

MBR4060CT

SMC Diode SolutionsIn Stock: 1984MBR4060CT Datasheet

DirectRFQ

48CTQ060

SMC Diode SolutionsIn Stock: 263348CTQ060 Datasheet

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SBR4060CT

Diodes IncorporatedIn Stock: 3006SBR4060CT Datasheet

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SBR40U60CT

Diodes IncorporatedIn Stock: 1339SBR40U60CT Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the STPS40SM60CT are qualified based on the following criteria:

Primary Substitution Criteria:

• Diode configuration: 1 Pair Common Cathode
• Reverse voltage rating: 60 V maximum
• Package type: TO-220-3 through-hole
• Mounting type: Through Hole
• Technology: Schottky or Super Barrier (functionally equivalent fast-recovery diode technologies)
• RoHS3 compliance
• MSL rating: 1 (Unlimited)

Current Rating Consideration: Parts are grouped as direct substitutes when average rectified current per diode is 20 A. Parts with higher current ratings (40 A) are classified as similar substitutes suitable for applications where increased current capacity is acceptable.

Forward Voltage Tolerance: Forward voltage specifications range from 600 mV to 750 mV at 20 A, representing acceptable variation within Schottky and Super Barrier diode technology performance bands.

Reverse Leakage Variation: Reverse leakage current specifications range from 90 µA to 2 mA at 60 V, reflecting manufacturing process differences between suppliers while maintaining functional equivalence.

Parameter Comparison

Engineering Selection Recommendations

Direct Substitutes (Equivalent Current Rating):

SBR40U60CT and SBR4060CT from Diodes Incorporated are direct functional equivalents to the STPS40SM60CT. Both devices maintain 20 A average rectified current per diode, 60 V reverse voltage rating, TO-220-3 package configuration, and ROHS3 compliance. The SBR40U60CT exhibits the lowest forward voltage specification at 600 mV @ 20 A. Both parts are classified as Active product status with REACH Unaffected designation.

MBR4060CT from SMC Diode Solutions is functionally equivalent in configuration and voltage rating. Current rating specification is not provided in the data; however, the device maintains 60 V reverse voltage, TO-220-3 package, and ROHS3 compliance. This part carries REACH Affected status.

Higher Current Capacity Substitute:

48CTQ060 from SMC Diode Solutions provides 40 A average rectified current per diode, representing a higher current capacity variant within the same 60 V voltage class and TO-220-3 package. Forward voltage is specified at 610 mV @ 20 A. This part is suitable for applications requiring increased current handling capability. REACH Affected status applies.

Compliance and Regulatory Status:

All substitute parts maintain ROHS3 compliance and MSL rating of 1 (Unlimited). The STPS40SM60CT and both Diodes Incorporated parts (SBR4060CT, SBR40U60CT) carry REACH Unaffected designation. SMC Diode Solutions parts (MBR4060CT, 48CTQ060) carry REACH Affected status, requiring evaluation within specific application regulatory frameworks.

Frequently Asked Questions (FAQ)

Q: Can SBR4060CT replace STPS40SM60CT in all applications?

A: SBR4060CT is a direct functional equivalent. Both devices share identical 60 V reverse voltage rating, 20 A average rectified current per diode, TO-220-3 package, and fast recovery speed characteristics. The primary difference is technology classification: STPS40SM60CT uses Schottky technology while SBR4060CT uses Super Barrier technology. Both are fast-recovery diode technologies with comparable performance. Forward voltage differs by 75 mV (700 mV vs. 625 mV at 20 A), which may affect thermal performance in high-current applications.

Q: What is the difference between SBR40U60CT and SBR4060CT?

A: Both devices are manufactured by Diodes Incorporated and share identical electrical specifications: 60 V reverse voltage, 20 A average rectified current per diode, TO-220-3 package, and Super Barrier technology. SBR40U60CT specifies lower forward voltage at 600 mV @ 20 A compared to SBR4060CT at 700 mV @ 20 A. This 100 mV difference results in reduced power dissipation and lower junction temperature in the SBR40U60CT variant.

Q: Is 48CTQ060 suitable as a substitute if my application only requires 20 A?

A: 48CTQ060 provides 40 A average rectified current per diode, which exceeds the 20 A requirement of STPS40SM60CT. The device maintains identical 60 V reverse voltage rating and TO-220-3 package configuration. Higher current rating does not create incompatibility; the device operates within specification at 20 A load. Forward voltage specification is 610 mV @ 20 A, which is lower than the main part at 625 mV @ 20 A.

Q: What does "1 Pair Common Cathode" configuration mean?

A: This configuration indicates the diode array contains two diodes with a shared cathode terminal. The TO-220-3 package provides three leads: two anodes (one per diode) and one common cathode. This configuration is standard for bridge rectifier applications and dual-diode switching circuits.

Q: Are there differences in reverse leakage current between substitutes?

A: Reverse leakage current varies across substitutes: STPS40SM60CT specifies 90 µA @ 60 V, while MBR4060CT specifies 1 mA @ 60 V, 48CTQ060 specifies 2 mA @ 60 V, and both Diodes Incorporated parts specify 500 µA @ 60 V. These variations reflect different manufacturing processes and semiconductor material quality. Higher leakage current increases standby power consumption and junction temperature. Applications sensitive to leakage current should prioritize STPS40SM60CT or SBR40U60CT.

Q: What is the significance of REACH Affected versus REACH Unaffected status?

A: REACH Unaffected designation indicates the part does not contain substances of very high concern (SVHC) listed under REACH regulations. REACH Affected status requires compliance verification within specific application and regional regulatory frameworks. Selection between REACH Unaffected and REACH Affected parts depends on end-product regulatory requirements and geographic distribution.

Q: Can I use MBR4060CT if current rating is not specified?

A: MBR4060CT maintains 60 V reverse voltage rating, TO-220-3 package, and Schottky technology identical to STPS40SM60CT. The absence of current rating specification in the provided data does not indicate incompatibility. The device is suitable for applications within the 20 A per diode operating range. Forward voltage specification at 750 mV @ 20 A is higher than the main part, resulting in increased power dissipation.

Q: What is the operating temperature range for each substitute?

A: STPS40SM60CT specifies maximum junction temperature of 150°C without minimum specification. MBR4060CT and 48CTQ060 specify operating range of -55°C to 150°C. SBR4060CT and SBR40U60CT specify operating range of -65°C to 150°C. The Diodes Incorporated parts provide extended low-temperature operation capability suitable for industrial and automotive applications requiring wider temperature ranges.