MBR30H150CTG Equivalent & Substitute Parts

Part Overview

The MBR30H150CTG is a Schottky diode array in a 1 Pair Common Cathode configuration rated for 150 V DC reverse voltage and 15 A average rectified current per diode. Manufactured by onsemi, this component is part of the SWITCHMODE™ series and features fast recovery characteristics suitable for high-frequency switching applications. The part is currently listed as obsolete, necessitating identification of equivalent and substitute components for ongoing design requirements and procurement needs.

Substiute Parts

MBR30H150CTG

onsemiIn Stock: 1943MBR30H150CTG Datasheet

Current PartRFQ

MBR30150CT

Taiwan Semiconductor CorporationIn Stock: 23546MBR30150CT Datasheet

DirectRFQ

MBR30150CTL

SMC Diode SolutionsIn Stock: 949MBR30150CTL Datasheet

DirectRFQ

SBR30150CT

Diodes IncorporatedIn Stock: 2322SBR30150CT Datasheet

DirectRFQ

STPS30150CT

STMicroelectronicsIn Stock: 25319STPS30150CT Datasheet

SimilarRFQ

V30150C-E3/4W

Vishay General Semiconductor - Diodes DivisionIn Stock: 32030V30150C-E3/4W Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MBR30H150CTG is determined by the following critical parameters:

Mandatory Matching Parameters:

• Voltage - DC Reverse (Vr) (Max): 150 V
• Diode Configuration: 1 Pair Common Cathode
• Package / Case: TO-220-3
• Mounting Type: Through Hole
• Technology: Schottky or equivalent fast-recovery diode technology

Current Rating Consideration: The MBR30H150CTG is rated for 15 A average rectified current per diode. Substitute parts with equal or higher current ratings (15 A or greater) are acceptable for direct replacement, as they provide equivalent or superior current handling capability within the same voltage and package constraints.

Performance Parameters: Forward voltage drop, reverse leakage current, and operating temperature range are secondary selection criteria. Substitutes with comparable or superior electrical characteristics maintain functional equivalence in the application circuit.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (Active Product Status):

The following parts are recommended as primary substitutes due to active product status and full compliance with mandatory electrical and mechanical parameters:

MBR30150CT (Taiwan Semiconductor Corporation): Provides 30 A current rating, exceeding the 15 A requirement of the original part. Rated for -55°C to 150°C operating temperature range. ROHS3 compliant. Forward voltage of 1.02 V @ 30 A demonstrates superior efficiency characteristics. Suitable for direct replacement with enhanced current margin.

STPS30150CT (STMicroelectronics): Maintains 15 A current rating matching the original specification. Rated for maximum junction temperature of 175°C, providing extended thermal headroom. ROHS3 compliant. Reverse leakage current of 6.5 µA @ 150 V is the lowest among all substitutes, indicating superior leakage performance. Forward voltage of 920 mV @ 15 A provides improved efficiency.

V30150C-E3/4W (Vishay General Semiconductor - Diodes Division): Maintains 15 A current rating and TO-220-3 package configuration. Part of the TMBS® series with Schottky technology. Rated for -55°C to 150°C operating temperature. ROHS3 compliant. Forward voltage of 1.36 V @ 15 A is higher than the original specification but remains within acceptable operating parameters for most applications.

MBR30150CTL (SMC Diode Solutions): Provides TO-220-3 package compatibility with 1 Pair Common Cathode configuration. Rated for -55°C to 150°C operating temperature. ROHS3 compliant. Forward voltage of 900 mV @ 15 A offers improved efficiency. Note: Current rating is not specified in available documentation.

Secondary Substitutes (Obsolete Product Status):

SBR30150CT (Diodes Incorporated): Obsolete product status limits long-term procurement viability. Maintains 15 A current rating and TO-220-3 package. Super Barrier technology provides alternative fast-recovery diode approach. Extended operating temperature range of -65°C to 175°C. ROHS3 compliant. Forward voltage of 920 mV @ 15 A. Suitable for applications where existing inventory is available but not recommended for new designs requiring long-term supply assurance.

Frequently Asked Questions (FAQ)

Q: Can MBR30150CT be used as a direct replacement for MBR30H150CTG?

A: Yes. MBR30150CT meets all mandatory substitution criteria: 150 V reverse voltage rating, 1 Pair Common Cathode configuration, TO-220-3 package, and through-hole mounting. The 30 A current rating exceeds the 15 A requirement, providing additional current margin. Active product status ensures ongoing availability.

Q: What is the difference between Schottky and Super Barrier diode technology in these substitutes?

A: Both technologies provide fast recovery characteristics (≤ 500ns) suitable for switching applications. Schottky diodes (MBR30150CT, STPS30150CT, V30150C-E3/4W, MBR30150CTL) and Super Barrier diodes (SBR30150CT) are functionally equivalent for the MBR30H150CTG application. Technology selection does not affect substitution eligibility when all electrical and mechanical parameters match.

Q: Are all substitute parts ROHS3 compliant?

A: All active substitute parts listed (MBR30150CT, MBR30150CTL, STPS30150CT, V30150C-E3/4W) are ROHS3 compliant. The obsolete SBR30150CT is also ROHS3 compliant. The original MBR30H150CTG does not specify RoHS status in available documentation.

Q: Which substitute offers the lowest forward voltage drop?

A: MBR30150CTL provides the lowest forward voltage at 900 mV @ 15 A, followed by SBR30150CT and STPS30150CT at 920 mV @ 15 A. Lower forward voltage reduces power dissipation and heat generation in the application circuit.

Q: Can I use MBR30150CT in applications requiring exactly 15 A current?

A: Yes. MBR30150CT is rated for 30 A average rectified current per diode, which exceeds the 15 A requirement. The higher current rating provides design margin and does not create compatibility issues. The part operates safely at 15 A or lower current levels.

Q: What is the significance of the TO-220-3 package specification?

A: TO-220-3 is the physical package format with three leads, ensuring mechanical and thermal compatibility with the original MBR30H150CTG. All listed substitutes use identical TO-220-3 packaging, enabling direct board-level replacement without PCB modifications or thermal management redesign.

Q: How do operating temperature ranges affect substitution decisions?

A: The original MBR30H150CTG operates from -20°C to 150°C. Most active substitutes extend this range to -55°C to 150°C or higher, providing broader environmental compatibility. Extended temperature ranges do not create substitution conflicts; they represent enhanced capability. Application-specific temperature requirements determine whether extended ranges are necessary.

Q: Is the reverse leakage current difference between substitutes significant?

A: Reverse leakage varies from 6.5 µA (STPS30150CT) to 1 mA (MBR30150CTL) at 150 V. For most switching applications, these differences are negligible. Applications with stringent leakage requirements should select STPS30150CT (6.5 µA) or MBR30150CT (100 µA). MBR30150CTL (1 mA) is acceptable for general-purpose rectification where leakage is not a critical design parameter.

Q: Why is the original MBR30H150CTG listed as obsolete?

A: Obsolescence indicates the manufacturer (onsemi) has discontinued production. Active substitutes from other manufacturers provide equivalent functionality with ongoing supply assurance. Procurement should transition to active alternatives to avoid future supply chain disruptions.