MBRF10150CT Equivalent & Substitute Parts

Part Overview

The MBRF10150CT is a Schottky diode array manufactured by Diodes Incorporated, configured as a 1 Pair Common Cathode rectifier with a maximum reverse voltage rating of 150 V and average rectified current of 5 A per diode. The device is packaged in a TO-220-3 Full Pack with isolated tab configuration for through-hole mounting applications.

This part is classified as Obsolete. Identification of equivalent and substitute parts is necessary to maintain design continuity and ensure component availability for new production runs, repairs, and system upgrades where the original part is no longer available from the manufacturer.

Substiute Parts

MBRF10150CT

Diodes IncorporatedIn Stock: 90468MBRF10150CT Datasheet

Current PartRFQ

DSTF30150C

Littelfuse Inc.In Stock: 685DSTF30150C Datasheet

MFR RecommendedRFQ

DSTF40150C

Littelfuse Inc.In Stock: 964DSTF40150C Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MBRF10150CT is determined by strict adherence to the following electrical and mechanical parameters:

Critical Matching Parameters:

• Diode Configuration: 1 Pair Common Cathode
• Technology: Schottky
• Voltage - DC Reverse (Vr) (Max): 150 V (minimum requirement)
• Package / Case: TO-220-3 Full Pack, Isolated Tab
• Mounting Type: Through Hole
• Speed: Fast Recovery ≤ 500ns, > 200mA (Io)

Allowable Variation Parameters:

• Current - Average Rectified (Io) (per Diode): Equal to or greater than 5 A
• Voltage - Forward (Vf) (Max) @ If: May increase with higher current ratings
• Current - Reverse Leakage @ Vr: May increase with higher current ratings
• Operating Temperature - Junction: Must maintain -55°C to 150°C minimum range
• Product Status: Active status preferred for long-term availability

The substitute parts DSTF30150C and DSTF40150C meet all critical matching parameters. Both devices maintain the same reverse voltage rating, diode configuration, package type, and fast recovery speed characteristics. The higher current ratings (15 A and 20 A respectively) represent upward-compatible substitutes suitable for applications where the original 5 A specification can be accommodated within the circuit design constraints.

Parameter Comparison

Engineering Selection Recommendations

DSTF30150C Selection Criteria: The DSTF30150C is an active product manufactured by Littelfuse Inc. with confirmed long-term availability. This substitute maintains full electrical and mechanical compatibility with the MBRF10150CT across all critical parameters: identical reverse voltage rating (150 V), diode configuration (1 Pair Common Cathode), package type (TO-220-3 Full Pack, Isolated Tab), and fast recovery speed characteristics. The DSTF30150C provides a current rating of 15 A per diode, which exceeds the original 5 A specification and is suitable for applications where the circuit design permits higher current capacity. Both devices are ROHS3 compliant and operate across the same temperature range (-55°C to 150°C). The DSTF30150C is recommended for applications requiring standard current capacity with active product support.

DSTF40150C Selection Criteria: The DSTF40150C is an active product manufactured by Littelfuse Inc. with confirmed long-term availability. This substitute maintains full electrical and mechanical compatibility with the MBRF10150CT across all critical parameters: identical reverse voltage rating (150 V), diode configuration (1 Pair Common Cathode), package type (TO-220-3 Full Pack, Isolated Tab), and fast recovery speed characteristics. The DSTF40150C provides a current rating of 20 A per diode, which exceeds the original 5 A specification and is suitable for applications where the circuit design permits higher current capacity. Both devices are ROHS3 compliant and operate across the same temperature range (-55°C to 150°C). The DSTF40150C is recommended for applications requiring higher current capacity with active product support.

Compliance Considerations: Both substitute parts maintain ROHS3 compliance and unlimited moisture sensitivity level (MSL 1), ensuring compatibility with standard manufacturing and storage protocols. The original MBRF10150CT carries automotive grade qualification (AEC-Q101), while the substitute parts do not explicitly list this qualification in the provided data. Applications requiring automotive-grade certification should verify qualification status with the manufacturer before final selection.

Frequently Asked Questions (FAQ)

Q: Can the DSTF30150C or DSTF40150C be used as direct replacements for the MBRF10150CT in existing circuit designs?

A: Both substitute parts are mechanically and electrically compatible with the MBRF10150CT. The TO-220-3 Full Pack, Isolated Tab package is identical, and the pin configuration for the 1 Pair Common Cathode diode array is the same. The reverse voltage rating (150 V) and fast recovery speed characteristics are maintained. However, the higher current ratings (15 A and 20 A respectively) must be verified as acceptable within the circuit design constraints. Thermal management and PCB layout considerations may require evaluation based on the specific application.

Q: What is the significance of the higher current ratings in the substitute parts?

A: The DSTF30150C (15 A) and DSTF40150C (20 A) have higher average rectified current specifications compared to the original MBRF10150CT (5 A). These higher ratings indicate the devices can handle greater current loads. In applications where the circuit operates at or below 5 A, the substitute parts will operate well within their rated capacity, typically resulting in lower forward voltage drop and reduced thermal dissipation. The selection between DSTF30150C and DSTF40150C depends on the specific current requirements and thermal design of the application.

Q: Are there any differences in forward voltage characteristics between the original and substitute parts?

A: Yes. The MBRF10150CT exhibits a forward voltage of 890 mV at 5 A, while the DSTF30150C shows 1.36 V at 15 A and the DSTF40150C shows 1.43 V at 20 A. These differences reflect the higher current ratings of the substitute parts. When operating at the original 5 A specification, the actual forward voltage of the substitute parts will be lower than the specified maximum values, as forward voltage is current-dependent. Circuit designs sensitive to forward voltage drop should account for this characteristic.

Q: What is the difference in reverse leakage current between these parts?

A: The MBRF10150CT specifies a reverse leakage current of 50 µA at 150 V, while the DSTF30150C specifies 200 µA and the DSTF40150C specifies 250 µA at the same voltage. Higher reverse leakage current is typical of devices with higher current ratings. For most applications, this difference is not significant; however, designs requiring minimal leakage current should evaluate this parameter against circuit requirements.

Q: Why is the original MBRF10150CT listed as Obsolete?

A: Obsolete status indicates that the manufacturer (Diodes Incorporated) has discontinued production and will not accept new orders. The substitute parts DSTF30150C and DSTF40150C are both listed as Active products, meaning they are currently in production and available for procurement. This availability difference is the primary reason for identifying substitute parts.

Q: Are the substitute parts RoHS compliant?

A: Yes. Both the DSTF30150C and DSTF40150C are ROHS3 compliant, matching the compliance status of the original MBRF10150CT. Both substitute parts also have unlimited moisture sensitivity level (MSL 1), consistent with the original part.

Q: Does the original MBRF10150CT have any certifications that the substitute parts do not?

A: The MBRF10150CT carries automotive grade qualification (AEC-Q101), which is not explicitly listed in the provided data for the substitute parts. Applications requiring automotive-grade certification should contact the manufacturer to confirm whether the DSTF30150C and DSTF40150C meet AEC-Q101 qualification requirements.

Q: Can I use the DSTF40150C instead of the DSTF30150C?

A: Yes. The DSTF40150C is a higher-rated variant of the same device family. Both parts maintain identical reverse voltage, diode configuration, package type, and fast recovery speed. The DSTF40150C provides 20 A current capacity compared to the DSTF30150C's 15 A. Selection between these two depends on the specific current requirements and thermal design of the application. The DSTF40150C is suitable for applications requiring maximum current capacity.