MBR20150PT Equivalent & Substitute Parts

Part Overview

The MBR20150PT is a Schottky diode array with 1 pair common cathode configuration, rated for 150 V DC reverse voltage and 20 A average rectified current per diode. Manufactured by Taiwan Semiconductor Corporation, this component is packaged in TO-247-3 through-hole format and is classified as discontinued at DiGi Electronics. The part is RoHS3 compliant with unlimited moisture sensitivity level (MSL 1).

Due to the discontinued status of the MBR20150PT, equivalent and substitute parts from active manufacturers are necessary for ongoing design support, procurement continuity, and new production requirements. Substitute components must maintain compatibility with the original electrical specifications and mechanical form factor while offering active product status from current suppliers.

Key Parameters

Parameter	MBR20150PT Specification
Diode Configuration	1 Pair Common Cathode
Technology	Schottky
Voltage - DC Reverse (Vr) (Max)	150 V
Current - Average Rectified (Io) (per Diode)	20 A
Voltage - Forward (Vf) (Max) @ If	1.02 V @ 20 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	100 µA @ 150 V
Operating Temperature - Junction	-55°C ~ 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

Substitution of the MBR20150PT is determined by strict adherence to the following critical parameters:

Mandatory Matching 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

Current Rating Consideration: The MBR20150PT is rated for 20 A average rectified current per diode. Substitute parts are grouped by their current ratings, which may equal or exceed the original specification. Parts with equal or higher current ratings (15 A, 20 A, 30 A, 40 A) are electrically compatible for applications requiring the MBR20150PT, as they maintain the same voltage class and configuration while providing equal or superior current handling capability.

Secondary Parameters: Forward voltage (Vf), reverse leakage current, and operating temperature range are secondary considerations that vary among substitutes but remain within acceptable ranges for Schottky diode array applications in the 150 V class.

Parameter Comparison

Part Number	Manufacturer	Io (per Diode)	Vf (Max) @ If	Vr (Max)	Ir @ Vr	Tj (Operating)	Product Status
MBR20150PT	Taiwan Semiconductor Corporation	20 A	1.02 V @ 20 A	150 V	100 µA @ 150 V	-55°C ~ 150°C	Discontinued
MBR30150WT	SMC Diode Solutions	Not specified	1 V @ 15 A	150 V	100 µA @ 150 V	-55°C ~ 150°C	Active
STPS30150CW	STMicroelectronics	15 A	920 mV @ 15 A	150 V	6.5 µA @ 150 V	-55°C ~ 175°C	Active
STPS40150CW	STMicroelectronics	20 A	920 mV @ 20 A	150 V	8 µA @ 150 V	-55°C ~ 175°C	Active
STPS61150CW	STMicroelectronics	30 A	840 mV @ 30 A	150 V	20 µA @ 150 V	-55°C ~ 175°C	Active
STPS80150CW	STMicroelectronics	40 A	840 mV @ 40 A	150 V	30 µA @ 150 V	-55°C ~ 175°C	Active
VS-60CPQ150-N3	Vishay General Semiconductor - Diodes Division	30 A	830 mV @ 30 A	150 V	100 µA @ 150 V	-55°C ~ 175°C	Active

Engineering Selection Recommendations

Direct Equivalent (Matched Current Rating): The STPS40150CW from STMicroelectronics provides the closest electrical match to the MBR20150PT, with identical 20 A average rectified current per diode and 150 V reverse voltage rating. This part is active in production, RoHS3 compliant, and available in high inventory (2700 pcs). The STPS40150CW exhibits lower forward voltage (920 mV @ 20 A versus 1.02 V @ 20 A) and extended maximum junction temperature (175°C versus 150°C), representing improved thermal performance characteristics.

Alternative with Higher Current Capability: The STPS61150CW and VS-60CPQ150-N3 both provide 30 A current ratings, exceeding the MBR20150PT specification. These parts are suitable for applications where additional current margin is beneficial. The STPS61150CW offers the lowest forward voltage (840 mV @ 30 A) among all substitutes. The VS-60CPQ150-N3 maintains the same reverse leakage current specification (100 µA @ 150 V) as the original part.

Lower Current Alternative: The STPS30150CW provides 15 A current rating, below the original 20 A specification. This part is suitable only for applications where the actual circuit current requirement does not exceed 15 A.

Compliance and Availability: All substitute parts are RoHS3 compliant with MSL 1 (unlimited moisture sensitivity). All listed substitutes maintain active product status with current manufacturers, ensuring long-term procurement availability and technical support.

Frequently Asked Questions (FAQ)

Q: Can the STPS40150CW directly replace the MBR20150PT in existing designs?

A: Yes. The STPS40150CW maintains identical electrical specifications for voltage rating (150 V), current rating (20 A), diode configuration (1 pair common cathode), and package format (TO-247-3). Both parts are through-hole mounted with fast recovery Schottky technology. The STPS40150CW exhibits superior thermal performance with extended junction temperature range (-55°C to 175°C versus -55°C to 150°C).

Q: What is the difference between the MBR30150WT and STPS40150CW?

A: The MBR30150WT is manufactured by SMC Diode Solutions with forward voltage of 1 V @ 15 A. The STPS40150CW is manufactured by STMicroelectronics with forward voltage of 920 mV @ 20 A and higher maximum junction temperature (175°C). Both are 150 V rated with common cathode configuration in TO-247-3 package. The STPS40150CW provides better current matching to the original MBR20150PT specification.

Q: Are higher current-rated parts (STPS61150CW, STPS80150CW) suitable substitutes?

A: Yes. Parts with current ratings exceeding 20 A (30 A and 40 A respectively) are electrically compatible substitutes. Higher current ratings provide additional design margin and do not compromise circuit functionality. These parts maintain the same 150 V voltage class, common cathode configuration, and TO-247-3 package format. Selection depends on application requirements and thermal management considerations.

Q: What is the significance of forward voltage differences among substitutes?

A: Forward voltage (Vf) varies among Schottky diode manufacturers and current ratings. The MBR20150PT specifies 1.02 V @ 20 A, while STPS40150CW specifies 920 mV @ 20 A. Lower forward voltage reduces power dissipation and heat generation. In high-current applications, this difference becomes significant for thermal design. All listed substitutes remain within acceptable ranges for 150 V Schottky diode arrays.

Q: Is the TO-247-3 package identical across all substitute parts?

A: Yes. All substitute parts listed use TO-247-3 through-hole package format. The MBR20150PT uses TO-247AD (TO-3P) designation, while most substitutes use standard TO-247-3 designation. These designations refer to the same physical package with three leads suitable for through-hole PCB mounting. Pin configuration remains consistent across all parts for the 1 pair common cathode diode array topology.

Q: What is the impact of reverse leakage current differences?

A: Reverse leakage current (Ir) varies among substitutes from 6.5 µA (STPS30150CW) to 100 µA (MBR20150PT, MBR30150WT, VS-60CPQ150-N3). Lower reverse leakage reduces standby power consumption and improves circuit efficiency. The differences are generally insignificant for most rectifier applications but become relevant in precision analog circuits or low-power standby conditions.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed are RoHS3 compliant with MSL 1 (unlimited moisture sensitivity level). This ensures compatibility with modern manufacturing processes and environmental regulations. The original MBR20150PT is also RoHS3 compliant.

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