MBR40150PT Equivalent & Substitute Parts

Part Overview

The MBR40150PT is a Schottky diode array manufactured by Taiwan Semiconductor Corporation, configured as a 1 Pair Common Cathode with a maximum reverse voltage rating of 150 V and average rectified current of 40 A per diode. The device is packaged in TO-247-3 through-hole format and is classified as Active product status with full RoHS3 compliance. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and design continuity across multiple manufacturers while maintaining electrical and mechanical compatibility within specified parameter ranges.

Key Parameters

Parameter	Value	Unit
Diode Configuration	1 Pair Common Cathode	—
Technology	Schottky	—
Voltage - DC Reverse (Vr) (Max)	150	V
Current - Average Rectified (Io) (per Diode)	40	A
Voltage - Forward (Vf) (Max) @ If	1.01 V @ 40 A	—
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Current - Reverse Leakage @ Vr	100	µA @ 150 V
Operating Temperature - Junction	-55 to 150	°C
Mounting Type	Through Hole	—
Package / Case	TO-247-3	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitute parts for the MBR40150PT are grouped based on strict electrical and mechanical compatibility criteria. All substitute parts must satisfy the following mandatory parameters:

Mandatory Compatibility Parameters:

Diode Configuration: 1 Pair Common Cathode
Technology: Schottky
Voltage - DC Reverse (Vr) (Max): 150 V
Mounting Type: Through Hole
Package / Case: TO-247-3
Speed: Fast Recovery ≤ 500ns, > 200mA (Io)
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)

Current Rating Considerations: Substitute parts are classified into two categories based on average rectified current (Io) per diode:

Direct Equivalents (40 A Rating): Parts with 40 A current rating provide identical electrical performance and are fully interchangeable with the MBR40150PT.
Similar Substitutes (15 A to 30 A Ratings): Parts with lower current ratings (15 A, 20 A, 30 A) are suitable for applications where the full 40 A capability is not required. These parts maintain all other electrical and mechanical parameters within acceptable ranges.

Forward voltage (Vf) and reverse leakage current (Ir) vary across manufacturers and current ratings but remain within acceptable operating ranges for Schottky diode arrays in this voltage class.

Parameter Comparison

Part Number	Manufacturer	Io (per Diode)	Vf (Max) @ If	Ir @ 150V	Tj (Max)	Package	RoHS Status
MBR40150PT	Taiwan Semiconductor Corporation	40 A	1.01 V @ 40 A	100 µA	150°C	TO-247-3	ROHS3 Compliant
MBR40150WT	SMC Diode Solutions	—	950 mV @ 20 A	1 mA	150°C	TO-247-3	ROHS3 Compliant
MBR30150WT	SMC Diode Solutions	—	1 V @ 15 A	100 µA	150°C	TO-247-3	ROHS3 Compliant
STPS40150CW	STMicroelectronics	20 A	920 mV @ 20 A	8 µA	175°C	TO-247-3	ROHS3 Compliant
STPS61150CW	STMicroelectronics	30 A	840 mV @ 30 A	20 µA	175°C	TO-247-3	ROHS3 Compliant
STPS80150CW	STMicroelectronics	40 A	840 mV @ 40 A	30 µA	175°C	TO-247-3	ROHS3 Compliant
STPS30150CW	STMicroelectronics	15 A	920 mV @ 15 A	6.5 µA	175°C	TO-247-3	ROHS3 Compliant

Engineering Selection Recommendations

Direct Equivalents (Fully Interchangeable):

The STPS80150CW (STMicroelectronics) is the primary direct equivalent to the MBR40150PT. Both devices feature identical 40 A average rectified current ratings, 150 V reverse voltage ratings, TO-247-3 packaging, and RoHS3 compliance. The STPS80150CW provides superior thermal performance with a maximum junction temperature of 175°C compared to 150°C for the MBR40150PT, and exhibits lower forward voltage (840 mV @ 40 A) and reverse leakage current (30 µA @ 150 V). This part is suitable for direct substitution in all applications where the MBR40150PT is specified.

Manufacturer-Specific Alternatives:

The MBR40150WT (SMC Diode Solutions) is a direct base product equivalent with identical part number root (MBR40150) and maintains all mandatory compatibility parameters. This part is suitable for applications requiring SMC Diode Solutions sourcing or supply chain diversification.

Current-Reduced Substitutes:

The STPS61150CW (STMicroelectronics) with 30 A rating is suitable for applications where the full 40 A capability is not required. The STPS40150CW (STMicroelectronics) with 20 A rating and STPS30150CW (STMicroelectronics) with 15 A rating are suitable for lower-current applications. The MBR30150WT (SMC Diode Solutions) with 15 A capability provides an alternative from SMC Diode Solutions for reduced-current designs.

All substitute parts maintain Active product status and full RoHS3 compliance. Selection should be based on current requirement, thermal performance needs, and supply chain preferences.

Frequently Asked Questions (FAQ)

Q: Can the STPS80150CW be used as a direct replacement for the MBR40150PT?

A: Yes. The STPS80150CW is a direct equivalent with identical 40 A current rating, 150 V reverse voltage rating, 1 Pair Common Cathode configuration, and TO-247-3 packaging. Both devices are RoHS3 compliant and feature Fast Recovery Schottky technology. The STPS80150CW provides improved thermal performance with a 175°C maximum junction temperature.

Q: What is the difference between the MBR40150PT and the STPS61150CW?

A: The primary difference is the average rectified current rating: the MBR40150PT is rated for 40 A per diode, while the STPS61150CW is rated for 30 A per diode. Both devices share identical 150 V reverse voltage rating, TO-247-3 packaging, and Schottky technology. The STPS61150CW is suitable for applications requiring 30 A or less. Forward voltage characteristics differ slightly (840 mV @ 30 A for STPS61150CW versus 1.01 V @ 40 A for MBR40150PT).

Q: Are all substitute parts available in the same TO-247-3 package?

A: Yes. All substitute parts listed are packaged in TO-247-3 through-hole format, ensuring mechanical and thermal compatibility with the MBR40150PT. No package conversion or PCB redesign is required for substitution.

Q: What is the significance of the 150°C versus 175°C maximum junction temperature difference?

A: The maximum junction temperature rating indicates the thermal performance capability of the device. The STPS series devices (STMicroelectronics) with 175°C maximum junction temperature provide superior thermal headroom compared to the MBR40150PT with 150°C maximum junction temperature. This allows the STPS series to operate at higher ambient temperatures or with higher power dissipation without exceeding thermal limits.

Q: Can I use a 15 A rated part (STPS30150CW or MBR30150WT) in an application designed for the 40 A MBR40150PT?

A: No. The 15 A rated parts are suitable only for applications where the maximum required current does not exceed 15 A. Using a lower-rated part in a 40 A application will result in device failure due to exceeding the current rating. Current rating selection must match or exceed the application requirement.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed are RoHS3 compliant with Moisture Sensitivity Level 1 (Unlimited), matching the compliance profile of the MBR40150PT.

Q: What is the difference between Direct Equivalents and Similar Substitutes?

A: Direct Equivalents (such as STPS80150CW and MBR40150WT) maintain the identical 40 A current rating and are fully interchangeable with the MBR40150PT. Similar Substitutes (STPS61150CW, STPS40150CW, STPS30150CW, MBR30150WT) have lower current ratings and are suitable only for applications where the full 40 A capability is not required. All maintain identical voltage ratings, packaging, and technology specifications.

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