STPS10M80CFP Equivalent & Substitute Parts

Part Overview

The STPS10M80CFP is a Schottky diode array manufactured by STMicroelectronics, configured as 1 pair common cathode with 80 V reverse voltage rating and 5 A average rectified current per diode. The device is packaged in TO-220-3 Full Pack through-hole configuration. This part is classified as obsolete, necessitating identification of active equivalent alternatives for ongoing design requirements and procurement needs.

Substiute Parts

STPS10M80CFP

STMicroelectronicsIn Stock: 807STPS10M80CFP Datasheet

Current PartRFQ

MBRF1080CT

SMC Diode SolutionsIn Stock: 10357MBRF1080CT Datasheet

DirectRFQ

MBRF1080CTP

SMC Diode SolutionsIn Stock: 942MBRF1080CTP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the STPS10M80CFP is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Diode Configuration: 1 Pair Common Cathode
• Technology: Schottky
• Voltage - DC Reverse (Vr) (Max): 80 V
• Mounting Type: Through Hole
• Package / Case: TO-220-3 Full Pack

Allowable Parameter Variations:

• Voltage - Forward (Vf) (Max) @ If: Substitute parts may exhibit different forward voltage characteristics within the same operating conditions
• Current - Reverse Leakage @ Vr: Substitute parts may have different leakage specifications
• Operating Temperature - Junction: Substitute parts may have different maximum junction temperature ratings
• Supplier Device Package designation: Variations in supplier packaging nomenclature (TO-220AB vs. ITO-220AB) are acceptable provided mechanical and electrical compatibility is maintained

The substitute parts MBRF1080CTP and MBRF1080CT, both manufactured by SMC Diode Solutions, satisfy all mandatory matching parameters and are classified as active products with current availability.

Parameter Comparison

Engineering Selection Recommendations

MBRF1080CTP Selection Criteria: The MBRF1080CTP is the preferred substitute when forward voltage performance matching the original STPS10M80CFP specification is required. This part exhibits 690 mV forward voltage at 5 A, which is within 15 mV of the original specification (705 mV). The MBRF1080CTP maintains active product status with SMC Diode Solutions, ensuring long-term availability and supply chain continuity. ROHS3 compliance and MSL 1 rating provide equivalent environmental and handling characteristics to the original part.

MBRF1080CT Selection Criteria: The MBRF1080CT is suitable for applications where forward voltage tolerance is less critical. This part exhibits 850 mV forward voltage at 5 A, representing a 145 mV increase relative to the original specification. The MBRF1080CT maintains active product status and equivalent compliance certifications. Selection of this variant requires confirmation that the higher forward voltage does not adversely affect circuit performance, thermal management, or power dissipation budgets.

Common Considerations: Both substitute parts feature isolated tab packaging (ITO-220AB), which differs from the original TO-220AB configuration. This variation provides enhanced electrical isolation and may require PCB layout modifications. Both substitutes exhibit maximum junction temperature ratings of 150°C, which is 25°C lower than the original STPS10M80CFP specification. Applications operating near the original 175°C maximum rating require thermal analysis to confirm compatibility. Both substitutes are REACH Affected, whereas the original part is REACH Unaffected; procurement and compliance documentation requirements may differ accordingly.

Frequently Asked Questions (FAQ)

Q: Can MBRF1080CTP and MBRF1080CT be used interchangeably in the same circuit?

A: Both parts share identical electrical ratings for reverse voltage, diode configuration, and switching speed. The primary difference is forward voltage: MBRF1080CTP exhibits 690 mV at 5 A, while MBRF1080CT exhibits 850 mV at 5 A. Interchangeability depends on circuit tolerance for forward voltage variation. Applications with tight voltage regulation or low-loss requirements should use MBRF1080CTP. Applications with broader voltage tolerance can use either part.

Q: What is the significance of the isolated tab (ITO-220AB) packaging on the substitute parts?

A: The isolated tab configuration provides electrical isolation between the device tab and the internal cathode connection, differing from the standard TO-220AB package used in the original STPS10M80CFP. This isolation may require PCB layout modifications, particularly for grounding and thermal management. Verify that the isolated tab configuration is compatible with existing PCB design and mounting hardware before implementation.

Q: Are there thermal performance differences between the original and substitute parts?

A: The original STPS10M80CFP specifies a maximum junction temperature of 175°C, while both substitute parts specify 150°C. This 25°C difference may impact thermal margin in applications operating at elevated ambient temperatures or with high power dissipation. Thermal analysis is required for applications approaching the original 175°C specification to confirm that the lower maximum junction temperature of the substitutes does not create thermal violations.

Q: How do reverse leakage current differences affect circuit performance?

A: The original STPS10M80CFP specifies 20 µA reverse leakage at 80 V, while both substitute parts specify 1 mA at 80 V. This 50-fold increase in leakage current may impact circuits sensitive to reverse leakage, such as precision rectifiers or low-current applications. Verify that the higher leakage specification does not degrade circuit performance, particularly in applications requiring low standby current or high impedance reverse bias conditions.

Q: What compliance and regulatory differences exist between the original and substitute parts?

A: The original STPS10M80CFP is REACH Unaffected, while both substitute parts are REACH Affected. This difference may require additional compliance documentation and supply chain verification for applications subject to REACH regulations. Both the original and substitute parts are ROHS3 Compliant and carry MSL 1 (Unlimited) moisture sensitivity ratings, providing equivalent environmental compliance in these categories.

Q: Is the 5 A current rating maintained across all parts?

A: The original STPS10M80CFP explicitly specifies 5 A average rectified current per diode. The substitute parts do not provide explicit current specifications in the available data. However, both substitute parts are mechanically and electrically compatible with the original TO-220-3 package and Schottky technology, and are designated as direct replacements for the STPS10 base product family. Thermal and circuit analysis is required to confirm that 5 A operation is supported within the 150°C maximum junction temperature constraint of the substitute parts.