STPS30SM60ST Equivalent & Substitute Parts

Part Overview

The STPS30SM60ST is a Schottky rectifier diode manufactured by STMicroelectronics, rated for 60 V DC reverse voltage and 30 A average rectified current in a Through Hole TO-220-3 package. This part is classified as Obsolete, necessitating identification of equivalent substitute components for ongoing design requirements and procurement needs. Substitute parts must maintain electrical compatibility across voltage, current, and thermal specifications while accommodating available package configurations.

Substiute Parts

STPS30SM60ST

STMicroelectronicsIn Stock: 1099STPS30SM60ST Datasheet

Current PartRFQ

30CTQ060

SMC Diode SolutionsIn Stock: 427230CTQ060 Datasheet

DirectRFQ

MBR3060CT

Taiwan Semiconductor CorporationIn Stock: 7779MBR3060CT Datasheet

DirectRFQ

MBR3060CTP

Diodes IncorporatedIn Stock: 2350MBR3060CTP Datasheet

DirectRFQ

SBR3060CT

Diodes IncorporatedIn Stock: 5166SBR3060CT Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the STPS30SM60ST is determined by the following critical parameters:

Primary Electrical Criteria:

• Voltage - DC Reverse (Vr) (Max): Must equal or exceed 60 V
• Current - Average Rectified (Io): Must equal or exceed 30 A per diode element
• Technology: Schottky or equivalent fast-recovery rectifier technology
• Speed: Fast Recovery ≤ 500ns, > 200mA (Io)

Secondary Compatibility Criteria:

• Mounting Type: Through Hole
• Package / Case: TO-220-3 or compatible TO-220 variants
• Operating Temperature - Junction: Must support minimum 150°C maximum junction temperature
• Compliance: ROHS3 Compliant

Configuration Consideration: Substitute parts may incorporate diode array configurations (1 Pair Common Cathode) provided the per-diode current rating meets or exceeds 30 A and voltage rating equals 60 V.

Parameter Comparison

Engineering Selection Recommendations

Full Current Rating Substitutes (30 A per Diode):

The MBR3060CT manufactured by Taiwan Semiconductor Corporation is the primary direct substitute for the STPS30SM60ST. This part maintains the 60 V / 30 A electrical specification in a TO-220-3 package configuration and holds Active product status. The MBR3060CT is ROHS3 Compliant and REACH Unaffected, supporting long-term procurement continuity.

Reduced Current Rating Substitutes (15 A per Diode):

The 30CTQ060 (SMC Diode Solutions), MBR3060CTP (Diodes Incorporated), and SBR3060CT (Diodes Incorporated) are available as alternatives where circuit topology permits parallel diode configurations or where application current requirements do not exceed 15 A per diode element. These parts maintain 60 V reverse voltage rating and Fast Recovery switching characteristics.

The 30CTQ060 and SBR3060CT are classified as Active products, supporting ongoing availability. The MBR3060CTP is Obsolete, limiting its suitability for new designs requiring long-term supply assurance.

Compliance and Thermal Considerations:

All substitute candidates are ROHS3 Compliant with Moisture Sensitivity Level 1 (Unlimited). The 30CTQ060 and MBR3060CTP support extended junction temperature ranges to 175°C, exceeding the STPS30SM60ST maximum of 150°C. The MBR3060CT and SBR3060CT maintain the 150°C maximum junction temperature specification.

Frequently Asked Questions (FAQ)

Q: Can the 30CTQ060, MBR3060CTP, or SBR3060CT be used as direct pin-for-pin replacements for the STPS30SM60ST?

A: These parts are not direct pin-for-pin replacements due to reduced current ratings (15 A per diode versus 30 A). However, they are electrically compatible in applications where circuit topology accommodates parallel diode configurations or where application current does not exceed 15 A per diode element. The MBR3060CT is the only direct electrical equivalent at 30 A per diode.

Q: What is the difference between the MBR3060CT and MBR3060CTP?

A: Both parts are manufactured by different suppliers (Taiwan Semiconductor Corporation versus Diodes Incorporated) and share the same 60 V / 30 A electrical specification. The MBR3060CTP uses an Isolated Tab package variant (ITO-220S) versus the standard TO-220-3 of the MBR3060CT. The MBR3060CTP is Obsolete, while the MBR3060CT is Active.

Q: Why do some substitute parts show higher reverse leakage current than the STPS30SM60ST?

A: Reverse leakage current variation is a characteristic of different manufacturing processes and diode technologies. The SBR3060CT exhibits higher leakage (500 µA) due to its Super Barrier technology, while the MBR3060CTP (100 µA) and MBR3060CT (200 µA) remain within acceptable ranges for most applications. The 30CTQ060 shows 1 mA leakage, which may require thermal management evaluation in high-temperature environments.

Q: Are all substitute parts suitable for new product designs?

A: The MBR3060CT, 30CTQ060, and SBR3060CT are classified as Active products and are suitable for new designs. The MBR3060CTP is Obsolete and should not be selected for new designs requiring long-term supply assurance.

Q: What package considerations apply when selecting a substitute?

A: The STPS30SM60ST uses a standard TO-220-3 package. The MBR3060CT, 30CTQ060, and SBR3060CT maintain this standard package. The MBR3060CTP uses an Isolated Tab variant (ITO-220S), which may require PCB layout modifications if thermal isolation is not required in the original design.

Q: How do forward voltage characteristics affect substitute selection?

A: Forward voltage varies across substitutes at different test currents. The STPS30SM60ST specifies 615 mV @ 30 A. Substitutes tested at 15 A show lower forward voltages (620–700 mV range), which is expected due to reduced current. The MBR3060CT tested at 15 A shows 770 mV, indicating higher forward voltage drop. Circuit designs sensitive to power dissipation should account for these variations.