STPS20M80CT Equivalent & Substitute Parts

Part Overview

The STPS20M80CT is a Schottky diode array manufactured by STMicroelectronics, configured as a 1 Pair Common Cathode arrangement with an 80 V reverse voltage rating and 10 A average rectified current per diode. The component is housed in a TO-220-3 through-hole package and is classified as obsolete. Due to its obsolete status, equivalent and substitute parts from active manufacturers are necessary to maintain design continuity and ensure ongoing component availability for production and repair applications.

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)	10 A
Voltage - Forward (Vf) (Max) @ If	740 mV @ 10 A
Speed	Fast Recovery ≤ 500 ns, > 200 mA (Io)
Mounting Type	Through Hole
Package / Case	TO-220-3
Operating Temperature - Junction (Max)	175°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the STPS20M80CT is determined by strict adherence to the following electrical and mechanical parameters:

Critical 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

Allowable Variation Parameters:

Current - Average Rectified (Io) (per Diode): Equal to or greater than 10 A
Voltage - Forward (Vf) (Max) @ If: Within acceptable forward voltage tolerance
Current - Reverse Leakage @ Vr: Within acceptable leakage tolerance
Operating Temperature - Junction: Equal to or greater than the maximum junction temperature requirement

The substitute parts MBR2080CTL, DST2080C, and DST3080C satisfy the critical matching parameters. DST3080C provides increased current capacity (15 A) and operates within the same voltage and package specifications, making it suitable for applications requiring higher current margins.

Parameter Comparison

Parameter	STPS20M80CT (Main)	MBR2080CTL	DST2080C	DST3080C
Manufacturer	STMicroelectronics	SMC Diode Solutions	Littelfuse Inc.	Littelfuse Inc.
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)	10 A	Not Specified	10 A	15 A
Voltage - Forward (Vf) (Max) @ If	740 mV @ 10 A	750 mV @ 10 A	810 mV @ 10 A	820 mV @ 15 A
Speed	Fast Recovery ≤ 500 ns, > 200 mA (Io)	Fast Recovery ≤ 500 ns, > 200 mA (Io)	Fast Recovery ≤ 500 ns, > 200 mA (Io)	Fast Recovery ≤ 500 ns, > 200 mA (Io)
Current - Reverse Leakage @ Vr	30 µA @ 80 V	1 mA @ 80 V	600 µA @ 80 V	700 µA @ 80 V
Operating Temperature - Junction	175°C (Max)	-55°C ~ 150°C	-55°C ~ 150°C	-55°C ~ 150°C
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	TO-220-3	TO-220-3	TO-220-3	TO-220-3
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

MBR2080CTL (SMC Diode Solutions): This part is an active product with ROHS3 compliance. It matches the critical electrical specifications of the STPS20M80CT with identical 80 V reverse voltage and TO-220-3 packaging. The forward voltage specification of 750 mV @ 10 A is within acceptable tolerance of the original 740 mV. This part is suitable for direct replacement in applications where the original STPS20M80CT is specified.

DST2080C (Littelfuse Inc.): This part is an active product with ROHS3 compliance and REACH Unaffected status. It provides identical electrical ratings to the STPS20M80CT: 80 V reverse voltage, 10 A average rectified current, and TO-220-3 packaging. The forward voltage of 810 mV @ 10 A represents a higher specification than the original part. This part is suitable for replacement in applications where the higher forward voltage is acceptable within circuit design margins.

DST3080C (Littelfuse Inc.): This part is an active product with ROHS3 compliance and REACH Unaffected status. It provides the same 80 V reverse voltage and TO-220-3 packaging as the STPS20M80CT but with increased current capacity of 15 A per diode. This part is suitable for replacement in applications where higher current capacity provides design margin or where the original 10 A specification is insufficient. The higher forward voltage of 820 mV @ 15 A must be evaluated within circuit design parameters.

All three substitute parts maintain compliance with ROHS3 standards and are available from active manufacturers, ensuring long-term supply continuity.

Frequently Asked Questions (FAQ)

Q: Can MBR2080CTL be used as a direct replacement for STPS20M80CT?

A: Yes. MBR2080CTL matches all critical parameters: 1 Pair Common Cathode configuration, Schottky technology, 80 V reverse voltage rating, and TO-220-3 through-hole package. The forward voltage specification of 750 mV @ 10 A is within acceptable tolerance of the original 740 mV specification.

Q: What is the difference between DST2080C and DST3080C?

A: Both parts share identical voltage ratings (80 V reverse) and packaging (TO-220-3). The primary difference is current capacity: DST2080C is rated for 10 A average rectified current per diode, matching the STPS20M80CT specification, while DST3080C is rated for 15 A. The forward voltage specifications also differ: DST2080C at 810 mV @ 10 A and DST3080C at 820 mV @ 15 A.

Q: Are all substitute parts RoHS compliant?

A: Yes. All three substitute parts (MBR2080CTL, DST2080C, and DST3080C) are ROHS3 compliant, matching the compliance status of the STPS20M80CT.

Q: Can DST3080C be used in place of STPS20M80CT in a 10 A application?

A: Yes. DST3080C is rated for 15 A average rectified current per diode, which exceeds the 10 A requirement of the STPS20M80CT. The higher current rating provides design margin. The forward voltage of 820 mV @ 15 A must be evaluated within circuit design parameters to ensure compatibility.

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

A: The STPS20M80CT specifies 30 µA @ 80 V reverse leakage. MBR2080CTL specifies 1 mA, DST2080C specifies 600 µA, and DST3080C specifies 700 µA. Higher reverse leakage may affect circuit performance in applications sensitive to leakage current. Circuit design analysis is required to determine acceptability in specific applications.

Q: Are all substitute parts available in the same TO-220-3 package?

A: Yes. All substitute parts (MBR2080CTL, DST2080C, and DST3080C) are packaged in TO-220-3, providing mechanical and thermal compatibility with the STPS20M80CT.

Q: What is the operating temperature range difference between the main part and substitutes?

A: The STPS20M80CT specifies a maximum junction temperature of 175°C. The substitute parts specify an operating temperature range of -55°C to 150°C, with a maximum of 150°C. Applications requiring operation above 150°C junction temperature require circuit design review.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message