STPS30M80CFP Equivalent & Substitute Parts

Part Overview

The STPS30M80CFP is a Schottky diode array manufactured by STMicroelectronics, configured as a 1 Pair Common Cathode device rated for 80 V DC reverse voltage and 15 A average rectified current per diode. The component is packaged in a Through Hole TO-220-3 Full Pack configuration. This part is currently listed as Obsolete, making identification of equivalent and substitute components necessary for ongoing design support and procurement continuity.

Key Parameters

Parameter	Value
Diode Configuration	1 Pair Common Cathode
Technology	Schottky
Voltage - DC Reverse (Vr) (Max)	80 V
Current - Average Rectified (Io) (per Diode)	15 A
Voltage - Forward (Vf) (Max) @ If	745 mV @ 15 A
Speed	Fast Recovery ≤ 500 ns, > 200 mA (Io)
Mounting Type	Through Hole
Package / Case	TO-220-3 Full Pack
Operating Temperature - Junction (Max)	175°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the STPS30M80CFP is determined by strict equivalence across the following critical parameters:

Primary Substitution Criteria:

Diode Configuration: 1 Pair Common Cathode
Technology: Schottky
Voltage - DC Reverse (Vr) (Max): 80 V
Current - Average Rectified (Io) (per Diode): 15 A minimum
Mounting Type: Through Hole
Package / Case: TO-220-3 Full Pack or compatible variant

Secondary Compatibility Factors:

Fast Recovery speed characteristic (≤ 500 ns, > 200 mA)
RoHS3 Compliance
Moisture Sensitivity Level (MSL): 1 (Unlimited)

The substitute parts listed below meet or exceed the electrical specifications of the main part while maintaining functional and mechanical compatibility. Parts with higher current ratings (30 A) are included as they satisfy the minimum 15 A requirement and operate within the same voltage class.

Parameter Comparison

Parameter	STPS30M80CFP	MBR3080CTE3/TU	DSTF3080C	MBRF3080CT
Manufacturer	STMicroelectronics	Microchip Technology	Littelfuse Inc.	Taiwan Semiconductor Corporation
Product Status	Obsolete	Active	Active	Active
Diode Configuration	1 Pair Common Cathode	1 Pair Common Cathode	1 Pair Common Cathode	1 Pair Common Cathode
Technology	Schottky	Schottky	Schottky	Schottky
Voltage - DC Reverse (Vr) (Max)	80 V	80 V	80 V	80 V
Current - Average Rectified (Io) (per Diode)	15 A	15 A	15 A	30 A
Voltage - Forward (Vf) (Max) @ If	745 mV @ 15 A	800 mV @ 15 A	820 mV @ 15 A	940 mV @ 30 A
Speed	Fast Recovery ≤ 500 ns, > 200 mA	Fast Recovery ≤ 500 ns, > 200 mA	Fast Recovery ≤ 500 ns, > 200 mA	Fast Recovery ≤ 500 ns, > 200 mA
Current - Reverse Leakage @ Vr	40 µA @ 80 V	50 µA @ 80 V	700 µA @ 80 V	200 µA @ 80 V
Operating Temperature - Junction	175°C (Max)	-65°C ~ 175°C	-55°C ~ 150°C	-55°C ~ 150°C
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	TO-220-3 Full Pack	TO-220-3	TO-220-3 Full Pack, Isolated Tab	TO-220-3 Full Pack, Isolated Tab
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

MBR3080CTE3/TU (Microchip Technology)

This part provides direct electrical equivalence to the STPS30M80CFP with identical 15 A current rating and 80 V voltage specification. The MBR3080CTE3/TU maintains Active product status and carries full RoHS3 compliance. Forward voltage characteristics are within acceptable tolerance (800 mV vs. 745 mV at 15 A). Reverse leakage current is comparable (50 µA vs. 40 µA). Operating temperature range extends to -65°C, providing broader thermal coverage than the original part. This component is suitable for direct replacement in applications requiring exact electrical performance matching.

DSTF3080C (Littelfuse Inc.)

This Littelfuse component matches the STPS30M80CFP across voltage and current ratings with Active product status. The isolated tab variant (ITO-220AB) provides enhanced electrical isolation compared to standard TO-220-3 packaging. Forward voltage is slightly elevated (820 mV vs. 745 mV), and reverse leakage is higher (700 µA vs. 40 µA). Operating temperature maximum is limited to 150°C. This part is applicable where isolation characteristics provide design advantage, with acceptance of slightly higher leakage current specifications.

MBRF3080CT (Taiwan Semiconductor Corporation)

This component provides 30 A current rating, exceeding the 15 A requirement of the STPS30M80CFP while maintaining 80 V voltage specification. The higher current capacity allows use in applications with potential current margin requirements. Forward voltage at 30 A operation is 940 mV. Reverse leakage is 200 µA at 80 V. The isolated tab configuration (ITO-220AB) provides electrical isolation. Operating temperature range is -55°C to 150°C. This part is suitable for applications where higher current headroom is beneficial and forward voltage elevation is acceptable.

All three substitute parts maintain RoHS3 compliance, MSL Level 1 rating, and Fast Recovery speed characteristics. Selection should be based on specific application requirements regarding current margin, leakage current tolerance, and thermal operating range.

Frequently Asked Questions (FAQ)

Q: Can the MBR3080CTE3/TU directly replace the STPS30M80CFP in existing designs?

A: Yes. The MBR3080CTE3/TU provides electrical equivalence with identical 15 A current rating and 80 V voltage specification. Both components use the same TO-220-3 package configuration and Fast Recovery Schottky technology. Forward voltage tolerance (800 mV vs. 745 mV at 15 A) is within typical design margins for Schottky diode applications.

Q: What is the difference between the standard TO-220-3 and the isolated tab (ITO-220AB) variants?

A: The isolated tab variant provides electrical isolation between the tab and the semiconductor junction, reducing thermal coupling to the mounting surface. Standard TO-220-3 packages have the tab electrically connected to one of the internal leads. Both variants are mechanically compatible with standard TO-220 mounting hardware. Selection depends on thermal management and isolation requirements of the specific application.

Q: Why does the MBRF3080CT have a 30 A rating when the original part is 15 A?

A: The MBRF3080CT is a higher-current variant of the same diode family, maintaining the same 80 V voltage specification and Schottky technology. The 30 A rating provides additional current capacity for applications requiring higher current margins or future design scaling. It is electrically compatible with 15 A applications, operating at lower stress levels.

Q: Are there differences in reverse leakage current between the substitute parts?

A: Yes. The STPS30M80CFP specifies 40 µA reverse leakage at 80 V. The MBR3080CTE3/TU is comparable at 50 µA. The DSTF3080C specifies 700 µA, and the MBRF3080CT specifies 200 µA. Applications sensitive to leakage current should prioritize the MBR3080CTE3/TU for closest matching to the original specification.

Q: Do all substitute parts meet the same compliance standards as the original?

A: Yes. All listed substitute parts are RoHS3 compliant, carry MSL Level 1 (Unlimited) moisture sensitivity rating, and are REACH unaffected. All components are classified under the same HTSUS code (8541.10.0080) and ECCN (EAR99).

Q: What is the significance of the Fast Recovery speed specification?

A: Fast Recovery (≤ 500 ns, > 200 mA) indicates the diode switching speed characteristic, critical for high-frequency rectification and switching applications. All listed substitute parts maintain this specification, ensuring compatibility in applications where switching performance is a design requirement.

Q: Can the DSTF3080C be used in applications where thermal isolation is not required?

A: Yes. The isolated tab feature of the DSTF3080C is an additional capability that does not prevent use in standard applications. The component functions identically to non-isolated variants in electrical performance. The isolated tab simply provides an option for enhanced thermal management when needed.

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