STPS16L40CT Equivalent & Substitute Parts

Part Overview

The STPS16L40CT is a Schottky diode array manufactured by STMicroelectronics, configured as a 1 Pair Common Cathode device rated for 40 V DC reverse voltage and 8 A average rectified current per diode. The component is packaged in a Through Hole TO-220-3 configuration and is classified as Obsolete product status. Due to its obsolete classification, identification of equivalent substitute parts with compatible electrical and mechanical specifications is necessary for design continuity and procurement planning.

Key Parameters

Parameter	Value
Diode Configuration	1 Pair Common Cathode
Technology	Schottky
Voltage - DC Reverse (Vr) (Max)	40 V
Current - Average Rectified (Io) (per Diode)	8 A
Voltage - Forward (Vf) (Max) @ If	500 mV @ 8 A
Speed	Fast Recovery ≤ 500 ns, > 200 mA (Io)
Current - Reverse Leakage @ Vr	700 µA @ 40 V
Operating Temperature - Junction (Max)	150°C
Mounting Type	Through Hole
Package / Case	TO-220-3
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the STPS16L40CT is based on electrical and mechanical parameter compatibility within the Schottky diode array category. The substitute part MBR3040FCTE3/TU shares the following critical parameters with the main part:

Matching Parameters:

Diode Configuration: 1 Pair Common Cathode
Technology: Schottky
Voltage - DC Reverse (Vr) (Max): 40 V
Speed: Fast Recovery ≤ 500 ns, > 200 mA (Io)
Mounting Type: Through Hole
Package / Case: TO-220-3
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)

The MBR3040FCTE3/TU is classified as Active product status, providing ongoing availability and supply chain continuity. The substitute part exceeds the current rating of the main part (15 A versus 8 A per diode), which is compatible with applications designed for the STPS16L40CT.

Parameter Comparison

Parameter	STPS16L40CT (Main Part)	MBR3040FCTE3/TU (Substitute)
Manufacturer	STMicroelectronics	Microchip Technology
Product Status	Obsolete	Active
Diode Configuration	1 Pair Common Cathode	1 Pair Common Cathode
Technology	Schottky	Schottky
Voltage - DC Reverse (Vr) (Max)	40 V	40 V
Current - Average Rectified (Io) (per Diode)	8 A	15 A
Voltage - Forward (Vf) (Max) @ If	500 mV @ 8 A	700 mV @ 15 A
Speed	Fast Recovery ≤ 500 ns, > 200 mA (Io)	Fast Recovery ≤ 500 ns, > 200 mA (Io)
Current - Reverse Leakage @ Vr	700 µA @ 40 V	50 µA @ 40 V
Operating Temperature - Junction	150°C (Max)	-65°C ~ 150°C
Mounting Type	Through Hole	Through Hole
Package / Case	TO-220-3	TO-220-3
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

The MBR3040FCTE3/TU is a direct substitute for the STPS16L40CT based on matching electrical and mechanical specifications. Both components are ROHS3 Compliant and REACH Unaffected, meeting regulatory requirements for industrial and commercial applications.

The substitute part is classified as Active product status, ensuring long-term availability and supply chain stability compared to the Obsolete status of the main part. The MBR3040FCTE3/TU provides higher current capacity (15 A versus 8 A per diode) and lower reverse leakage current (50 µA versus 700 µA at 40 V), which are beneficial characteristics for applications originally designed for the STPS16L40CT.

Both components share identical voltage ratings, diode configuration, package type, and fast recovery speed characteristics, confirming functional and mechanical compatibility for direct substitution in existing designs.

Frequently Asked Questions (FAQ)

Q: Can the MBR3040FCTE3/TU replace the STPS16L40CT in existing circuit designs?

A: Yes. Both components share identical diode configuration (1 Pair Common Cathode), voltage rating (40 V DC reverse), package type (TO-220-3), and fast recovery speed characteristics. The substitute part is mechanically and electrically compatible for direct substitution.

Q: What are the differences between the main part and the substitute?

A: The MBR3040FCTE3/TU has a higher current rating (15 A versus 8 A per diode), lower reverse leakage current (50 µA versus 700 µA at 40 V), and an extended operating temperature range (-65°C to 150°C versus 150°C maximum). The substitute part is Active status, providing ongoing availability.

Q: Are both parts compliant with regulatory requirements?

A: Yes. Both the STPS16L40CT and MBR3040FCTE3/TU are ROHS3 Compliant and REACH Unaffected, meeting regulatory standards for industrial and commercial applications.

Q: Does the higher current rating of the substitute part affect compatibility?

A: No. Higher current capacity is compatible with applications designed for the lower-rated main part. The substitute part operates within the same voltage and thermal specifications, making it suitable for direct replacement.

Q: Are the forward voltage characteristics compatible?

A: The forward voltage specifications differ due to the different current ratings at which they are specified (500 mV @ 8 A for the main part versus 700 mV @ 15 A for the substitute). Both components operate within the Schottky diode technology class and are compatible for the intended application.

Q: What is the significance of the TO-220-3 package for both parts?

A: The TO-220-3 package is a Through Hole configuration with three leads, providing identical mechanical fit and PCB mounting compatibility between the main part and substitute part. No layout or mechanical modifications are required for substitution.

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