MBRF30H150CTG Equivalent & Substitute Parts

Part Overview

The MBRF30H150CTG is a Schottky diode array manufactured by onsemi, configured as 1 pair common cathode with a maximum reverse voltage of 150 V and average rectified current of 15 A per diode. The device is packaged in TO-220-3 Full Pack through-hole mounting and operates across a junction temperature range of -20°C to 150°C. This part is classified as obsolete, making identification of equivalent and substitute components necessary for ongoing design support and procurement continuity.

Substiute Parts

MBRF30H150CTG

onsemiIn Stock: 2624MBRF30H150CTG Datasheet

Current PartRFQ

MBRF30150CT

Taiwan Semiconductor CorporationIn Stock: 1396MBRF30150CT Datasheet

DirectRFQ

STPS30150CFP

STMicroelectronicsIn Stock: 2393STPS30150CFP Datasheet

DirectRFQ

SBR20U150CTFP

Diodes IncorporatedIn Stock: 23759SBR20U150CTFP Datasheet

SimilarRFQ

VF30150C-E3/4W

Vishay General Semiconductor - Diodes DivisionIn Stock: 21023VF30150C-E3/4W Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MBRF30H150CTG is determined by the following critical parameters:

Mandatory Matching Criteria:

• Diode Configuration: 1 Pair Common Cathode
• Technology: Schottky
• Voltage - DC Reverse (Vr) (Max): 150 V
• Mounting Type: Through Hole
• Package / Case: TO-220-3 Full Pack

Allowable Variation Criteria:

• Current - Average Rectified (Io) (per Diode): Equal to or greater than 15 A
• Voltage - Forward (Vf) (Max) @ If: Within acceptable circuit operating margins
• Current - Reverse Leakage @ Vr: Within acceptable circuit operating margins
• Operating Temperature - Junction: Equal to or greater than the specified range
• Product Status: Active preferred for long-term availability

Substitute parts are grouped into two categories: direct equivalents (matching all parameters within tolerance) and functional alternatives (meeting mandatory criteria with allowable variations in electrical performance).

Parameter Comparison

Engineering Selection Recommendations

MBRF30150CT (Taiwan Semiconductor Corporation)

This part is an active product offering higher current capacity (30 A per diode) while maintaining the 150 V reverse voltage specification. The isolated tab package variant (ITO-220AB) provides improved thermal management compared to the standard TO-220-3 Full Pack. ROHS3 compliance and extended operating temperature range (-55°C to 150°C) support modern design requirements. Forward voltage is lower at 1.05 V @ 30 A, indicating improved efficiency characteristics.

STPS30150CFP (STMicroelectronics)

This part provides direct electrical equivalence to the MBRF30H150CTG with matching 15 A current rating and 150 V reverse voltage. The forward voltage is lower at 920 mV @ 15 A, and reverse leakage is significantly lower at 6.5 µA @ 150 V, indicating superior performance characteristics. ROHS3 compliance and active product status ensure long-term availability. Maximum junction temperature of 175°C exceeds the original specification.

VF30150C-E3/4W (Vishay General Semiconductor - Diodes Division)

This TMBS® series part matches the 15 A current rating and 150 V reverse voltage specification. The isolated tab package (ITO-220AB) provides thermal advantages. ROHS3 compliance and active product status support procurement continuity. Extended operating temperature range (-55°C to 150°C) exceeds the original specification. Forward voltage at 1.36 V @ 15 A is higher than the original part, requiring circuit evaluation for thermal impact.

SBR20U150CTFP (Diodes Incorporated)

This part uses Super Barrier technology with a lower current rating of 10 A per diode, making it suitable only for applications where the 15 A requirement can be reduced or paralleled configurations are acceptable. The isolated tab package (ITO-220AB) provides thermal benefits. Forward voltage is significantly lower at 780 mV @ 10 A. Extended operating temperature range (-65°C to 175°C) and ROHS3 compliance support modern applications. Reverse leakage at 500 µA @ 150 V is higher than preferred specifications.

Frequently Asked Questions (FAQ)

Q: Can MBRF30150CT be used as a direct replacement for MBRF30H150CTG?

A: MBRF30150CT meets all mandatory substitution criteria: 1 pair common cathode configuration, Schottky technology, 150 V reverse voltage, and through-hole TO-220-3 mounting. The higher current rating (30 A vs. 15 A) and isolated tab package variant represent improvements over the original specification. Active product status ensures availability. Electrical performance is compatible with the original design.

Q: What is the difference between TO-220-3 Full Pack and ITO-220AB packaging?

A: Both are through-hole TO-220-3 packages suitable for the same PCB footprints. The ITO-220AB variant includes an isolated tab, providing improved thermal isolation and heat dissipation characteristics compared to the standard TO-220-3 Full Pack. This isolation can reduce thermal coupling between the device and the mounting surface, beneficial in high-current applications.

Q: Why does STPS30150CFP have lower forward voltage than the original MBRF30H150CTG?

A: Forward voltage variation between Schottky diode manufacturers results from differences in semiconductor material quality, junction design, and manufacturing processes. STPS30150CFP's lower forward voltage (920 mV @ 15 A vs. 1.11 V @ 15 A) indicates superior efficiency characteristics. This difference reduces power dissipation in the application circuit.

Q: Is SBR20U150CTFP suitable for all applications using MBRF30H150CTG?

A: SBR20U150CTFP has a lower current rating (10 A per diode vs. 15 A per diode). It is suitable only for applications where the current requirement does not exceed 10 A per diode, or where parallel configurations are implemented. The Super Barrier technology provides lower forward voltage (780 mV @ 10 A), but higher reverse leakage (500 µA @ 150 V) must be evaluated against circuit requirements.

Q: What compliance certifications are important for substitute part selection?

A: All active substitute parts listed are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements. The original MBRF30H150CTG compliance status is not specified in available documentation. Selection of ROHS3-compliant alternatives ensures compatibility with modern manufacturing and end-use regulations.

Q: How does operating temperature range affect part selection?

A: The original MBRF30H150CTG operates from -20°C to 150°C. All substitute parts offer equal or extended temperature ranges: MBRF30150CT and VF30150C-E3/4W extend to -55°C, STPS30150CFP to 175°C maximum, and SBR20U150CTFP to -65°C to 175°C. Extended ranges provide design flexibility for applications with wider environmental requirements.

Q: Can reverse leakage current differences impact circuit performance?

A: Reverse leakage current varies significantly among substitutes: STPS30150CFP (6.5 µA) is lower than the original (60 µA), while MBRF30150CT (200 µA) and VF30150C-E3/4W (200 µA) are higher, and SBR20U150CTFP (500 µA) is significantly higher. Applications sensitive to leakage current, such as precision rectification or low-power circuits, require evaluation of these differences against circuit specifications.