MBR30150PT Equivalent & Substitute Parts

Part Overview

The MBR30150PT is a Schottky diode array manufactured by Taiwan Semiconductor Corporation, configured as a 1 Pair Common Cathode device rated for 150 V DC reverse voltage and 30 A average rectified current per diode. The component is housed in a TO-247-3 through-hole package and is classified as Active product status with ROHS3 compliance and unlimited moisture sensitivity level.

Equivalent and substitute parts are necessary when the primary MBR30150PT is unavailable, when alternative manufacturers are required for supply chain diversification, or when design specifications permit operation within the electrical and mechanical parameters of functionally compatible devices.

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)	30	A
Voltage - Forward (Vf) (Max) @ If	1.02 V @ 30 A	—
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Current - Reverse Leakage @ Vr	500	µA @ 150 V
Operating Temperature - Junction	-55 to 150	°C
Mounting Type	Through Hole	—
Package / Case	TO-247-3	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the MBR30150PT is determined by strict equivalence in the following parameters:

Critical Parameters (Must Match):

Diode Configuration: 1 Pair Common Cathode
Technology: Schottky
Voltage - DC Reverse (Vr) (Max): 150 V
Mounting Type: Through Hole
Package / Case: TO-247-3

Allowable Variation Parameters:

Current - Average Rectified (Io) (per Diode): Equal to or greater than 30 A
Voltage - Forward (Vf) (Max) @ If: Equal to or less than 1.02 V at rated current
Current - Reverse Leakage @ Vr: Equal to or less than 500 µA @ 150 V
Operating Temperature - Junction (Max): Equal to or greater than 150°C

Substitute parts are classified into two categories:

Direct Substitutes: Parts with identical current ratings (30 A) and matching all critical parameters.

Compatible Alternatives: Parts with current ratings equal to or exceeding 30 A, maintaining all critical parameters, with electrical characteristics within allowable variation ranges.

Parameter Comparison

Part Number	Manufacturer	Io (per Diode)	Vf (Max) @ If	Vr (Max)	Reverse Leakage @ Vr	Tj (Max)	Package	Status
MBR30150PT	Taiwan Semiconductor Corporation	30 A	1.02 V @ 30 A	150 V	500 µA @ 150 V	150°C	TO-247-3	Active
30CPQ150	SMC Diode Solutions	—	1 V @ 15 A	150 V	100 µA @ 150 V	150°C	TO-247-3	Active
MBR30150WT	SMC Diode Solutions	—	1 V @ 15 A	150 V	100 µA @ 150 V	150°C	TO-247-3	Active
STPS30150CW	STMicroelectronics	15 A	920 mV @ 15 A	150 V	6.5 µA @ 150 V	175°C	TO-247-3	Active
STPS40150CW	STMicroelectronics	20 A	920 mV @ 20 A	150 V	8 µA @ 150 V	175°C	TO-247-3	Active
STPS61150CW	STMicroelectronics	30 A	840 mV @ 30 A	150 V	20 µA @ 150 V	175°C	TO-247-3	Active
STPS80150CW	STMicroelectronics	40 A	840 mV @ 40 A	150 V	30 µA @ 150 V	175°C	TO-247-3	Active

Engineering Selection Recommendations

Direct Substitutes (Equivalent Current Rating):

STPS61150CW (STMicroelectronics) is a direct functional equivalent with identical 30 A current rating and 150 V reverse voltage rating. This device offers improved forward voltage characteristics (840 mV @ 30 A versus 1.02 V @ 30 A) and significantly lower reverse leakage current (20 µA @ 150 V versus 500 µA @ 150 V). The maximum junction temperature rating of 175°C exceeds the MBR30150PT specification of 150°C. All devices maintain ROHS3 compliance and TO-247-3 package compatibility.

Compatible Alternatives (Higher Current Rating):

STPS80150CW (STMicroelectronics) is rated for 40 A average rectified current, exceeding the 30 A requirement of the MBR30150PT. This device maintains 150 V reverse voltage rating and TO-247-3 package configuration. Forward voltage is 840 mV @ 40 A, and reverse leakage is 30 µA @ 150 V. Maximum junction temperature is 175°C. This part is suitable for applications where current headroom is beneficial.

Limited Substitutes (Current Rating Below Specification):

STPS30150CW and STPS40150CW are rated for 15 A and 20 A respectively, both below the 30 A specification of the MBR30150PT. These devices are not suitable for direct substitution in applications requiring full 30 A capacity.

Manufacturer Alternatives (Unspecified Current Rating):

30CPQ150 and MBR30150WT (SMC Diode Solutions) are listed as equivalent parts but lack specified average rectified current ratings in the provided data. These devices maintain 150 V reverse voltage, TO-247-3 package, and forward voltage of 1 V @ 15 A. Selection of these parts requires verification of current capacity against application requirements.

All substitute candidates maintain ROHS3 compliance, unlimited moisture sensitivity level (MSL 1), and active product status.

Frequently Asked Questions (FAQ)

Q: Can STPS61150CW replace MBR30150PT in all applications?

A: STPS61150CW is electrically and mechanically compatible with MBR30150PT. Both devices are rated for 30 A average rectified current, 150 V reverse voltage, and housed in TO-247-3 packages. STPS61150CW offers superior electrical characteristics with lower forward voltage drop and reverse leakage current. Compatibility is confirmed for applications within these specifications.

Q: What is the difference between direct substitutes and compatible alternatives?

A: Direct substitutes maintain identical current ratings (30 A) and all critical electrical parameters. Compatible alternatives exceed the current rating specification while maintaining voltage ratings and package configuration. STPS80150CW is a compatible alternative rated for 40 A, providing additional current capacity beyond the 30 A requirement.

Q: Why do some substitute parts show unspecified current ratings?

A: 30CPQ150 and MBR30150WT lack specified average rectified current values in the provided technical data. These parts are listed as equivalents based on voltage rating, package type, and configuration matching. Current capacity verification is required before selection for applications demanding full 30 A operation.

Q: Are all substitute parts ROHS3 compliant?

A: All listed substitute parts maintain ROHS3 compliance status, consistent with the MBR30150PT specification. Compliance certification is uniform across all candidates.

Q: What is the significance of forward voltage differences between substitute parts?

A: Forward voltage (Vf) directly affects power dissipation and thermal performance. MBR30150PT specifies 1.02 V @ 30 A, while STPS61150CW and STPS80150CW specify 840 mV at their respective rated currents. Lower forward voltage reduces power loss and heat generation, improving efficiency in rectification applications.

Q: Can STPS30150CW or STPS40150CW be used if current requirements are lower than 30 A?

A: STPS30150CW (15 A) and STPS40150CW (20 A) are rated below the 30 A specification of MBR30150PT. These devices are suitable only for applications with reduced current requirements not exceeding their respective ratings. They are not suitable for direct substitution in 30 A applications.

Q: What is the impact of maximum junction temperature differences?

A: MBR30150PT specifies -55°C to 150°C operating range, while STMicroelectronics alternatives (STPS series) specify 175°C maximum. Higher maximum junction temperature provides additional thermal margin in high-temperature operating environments. Both specifications are suitable for standard industrial temperature ranges.

Q: Are through-hole mounting requirements identical across all substitute parts?

A: All listed substitute parts are through-hole mounted devices in TO-247-3 packages. Mechanical compatibility with existing PCB layouts and mounting hardware is confirmed across all candidates.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message