STPS20SM80CFP Equivalent & Substitute Parts

Part Overview

The STPS20SM80CFP is a Schottky diode array manufactured by STMicroelectronics, configured as 1 pair common cathode with 80 V reverse voltage rating and 10 A average rectified current per diode. The device is packaged in TO-220-3 Full Pack through-hole format. This part is classified as obsolete, necessitating identification of active equivalent and substitute components for ongoing design requirements and procurement needs.

Substiute Parts

STPS20SM80CFP

STMicroelectronicsIn Stock: 32968STPS20SM80CFP Datasheet

Current PartRFQ

MBRF2060CTP

SMC Diode SolutionsIn Stock: 1450MBRF2060CTP Datasheet

DirectRFQ

MBRF2080CT

Taiwan Semiconductor CorporationIn Stock: 7246MBRF2080CT Datasheet

DirectRFQ

MBRF2080CTL

SMC Diode SolutionsIn Stock: 19267MBRF2080CTL Datasheet

DirectRFQ

MBRF2080CTP

SMC Diode SolutionsIn Stock: 3428MBRF2080CTP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the STPS20SM80CFP is determined by the following critical parameters:

Primary Substitution Criteria:

• Diode configuration: 1 pair common cathode
• Technology: Schottky
• Voltage - DC Reverse (Vr) (Max): 80 V minimum
• Mounting type: Through hole
• Package / Case: TO-220-3 Full Pack format

Secondary Compatibility Factors:

• Current - Average Rectified (Io): Equal to or greater than 10 A per diode
• Speed: Fast recovery ≤ 500ns, > 200mA (Io)
• RoHS compliance: ROHS3 compliant

Substitute parts are grouped based on voltage rating alignment and current capacity. Parts meeting or exceeding the 80 V reverse voltage specification and maintaining Schottky technology with common cathode configuration are classified as direct substitutes. Parts with lower voltage ratings (60 V) are classified as limited substitutes applicable only to designs with reduced voltage requirements.

Parameter Comparison

Engineering Selection Recommendations

Direct Substitutes (80 V Rating):

MBRF2080CT, MBRF2080CTP, and MBRF2080CTL are direct substitutes for the STPS20SM80CFP. All three parts maintain the 80 V reverse voltage specification, Schottky technology, 1 pair common cathode configuration, and TO-220-3 Full Pack through-hole mounting. All substitute parts are active products with ROHS3 compliance. The MBRF2080CT variant offers 20 A current capacity, exceeding the original 10 A specification. MBRF2080CTP and MBRF2080CTL provide equivalent electrical performance with current specifications not explicitly stated but compatible with the original application requirements.

Limited Substitute (60 V Rating):

MBRF2060CTP is a limited substitute applicable only to designs where the reverse voltage requirement is 60 V or lower. This part maintains Schottky technology and common cathode configuration but does not meet the full 80 V specification of the original component. Use of this part requires design review to confirm voltage margin adequacy.

Compliance and Availability:

All substitute parts are ROHS3 compliant and active products with current inventory availability. MBRF2080CTL and MBRF2080CTP are manufactured by SMC Diode Solutions with REACH Affected status. MBRF2080CT is manufactured by Taiwan Semiconductor Corporation with REACH Unaffected status. Selection between these options depends on supply chain requirements and regulatory compliance obligations specific to the end application.

Frequently Asked Questions (FAQ)

Q: Can MBRF2060CTP be used as a direct replacement for STPS20SM80CFP?

A: MBRF2060CTP is not a direct replacement. While it maintains the same Schottky technology and common cathode configuration, the 60 V reverse voltage rating is lower than the original 80 V specification. Use of this part is limited to applications where the design voltage requirement is 60 V or lower.

Q: What are the key differences between MBRF2080CT, MBRF2080CTP, and MBRF2080CTL?

A: All three parts meet the 80 V reverse voltage requirement and maintain Schottky technology with common cathode configuration. MBRF2080CT is manufactured by Taiwan Semiconductor Corporation and specifies 20 A current capacity. MBRF2080CTP and MBRF2080CTL are manufactured by SMC Diode Solutions. MBRF2080CTP and MBRF2080CTL differ in REACH compliance status: MBRF2080CTP is REACH Affected, while MBRF2080CTL is REACH Affected. Forward voltage characteristics are comparable across all three parts.

Q: Are the isolated tab variants (ITO-220AB) compatible with the original TO-220-3 Full Pack footprint?

A: The isolated tab variants use the ITO-220AB supplier device package, which maintains mechanical and electrical compatibility with TO-220-3 Full Pack through-hole mounting. The isolated tab feature provides additional electrical isolation but does not affect pin compatibility or board-level integration.

Q: What is the significance of the reverse leakage current differences between substitute parts?

A: Reverse leakage current is specified at the rated voltage for each part. The STPS20SM80CFP specifies 25 µA @ 80 V, while MBRF2080CT specifies 100 µA @ 80 V and MBRF2080CTP/MBRF2080CTL specify 1 mA @ 80 V. These differences reflect manufacturing variations between suppliers but do not affect functional compatibility in standard rectification applications.

Q: Does the operating temperature range difference affect substitution suitability?

A: The STPS20SM80CFP specifies a maximum junction temperature of 175°C, while all substitute parts specify an operating range of -55°C to 150°C. The substitute parts have a lower maximum junction temperature. Design thermal analysis is required to confirm that the substitute part's 150°C maximum operating temperature is adequate for the intended application environment.

Q: Are all substitute parts RoHS3 compliant?

A: Yes, all substitute parts listed (MBRF2060CTP, MBRF2080CT, MBRF2080CTP, and MBRF2080CTL) are ROHS3 compliant, matching the compliance status of the original STPS20SM80CFP.