MB20H90CTHE3_A/I Equivalent & Substitute Parts

Part Overview

The MB20H90CTHE3_A/I is a Schottky diode array manufactured by Vishay General Semiconductor - Diodes Division. This component features a 1 Pair Common Cathode configuration rated for 90 V DC reverse voltage and 10 A average rectified current per diode. The device is packaged in a TO-263-3 D2PAK surface mount package with automotive-grade qualification (AEC-Q101).

This part is classified as Obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this diode array.

Substiute Parts

MB20H90CTHE3_A/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 1068MB20H90CTHE3_A/I Datasheet

Current PartRFQ

STPS20H100CG-TR

STMicroelectronicsIn Stock: 90270STPS20H100CG-TR Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MB20H90CTHE3_A/I is determined by the following critical parameters:

Mandatory Matching Criteria:

• Diode Configuration: 1 Pair Common Cathode
• Technology: Schottky
• Package / Case: TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
• Current - Average Rectified (Io) (per Diode): 10 A
• Voltage - Forward (Vf) (Max) @ If: 770 mV @ 10 A
• Speed: Fast Recovery ≤ 500ns, > 200mA (Io)
• Current - Reverse Leakage @ Vr: 4.5 µA

Allowable Variation:

• Voltage - DC Reverse (Vr) (Max): Equal to or greater than 90 V
• Operating Temperature - Junction: Equal to or greater than the specified range
• RoHS and Compliance Status: ROHS3 Compliant

The STPS20H100CG-TR from STMicroelectronics qualifies as a direct substitute based on these criteria. It maintains identical diode configuration, technology, package, current rating, forward voltage, and recovery speed. The substitute provides a higher reverse voltage rating (100 V versus 90 V), which is acceptable for applications designed for the original 90 V specification.

Parameter Comparison

Engineering Selection Recommendations

The STPS20H100CG-TR is a qualified substitute for the MB20H90CTHE3_A/I based on the following engineering factors:

Product Status: The original MB20H90CTHE3_A/I is classified as Obsolete. The STPS20H100CG-TR maintains Active product status with STMicroelectronics, ensuring long-term availability and supply chain continuity.

Compliance and Certification: Both components are ROHS3 Compliant and carry identical Moisture Sensitivity Level (MSL) ratings of 1 (Unlimited). Both are REACH Unaffected and classified under ECCN EAR99.

Electrical Performance: The substitute maintains all critical electrical parameters including current rating, forward voltage, recovery speed, and reverse leakage characteristics. The increased reverse voltage rating (100 V versus 90 V) provides additional design margin without introducing incompatibility.

Package Compatibility: Both components utilize the identical TO-263-3 D2PAK surface mount package with 2 leads plus tab configuration, ensuring direct mechanical and electrical compatibility on existing printed circuit boards.

Automotive Grade: While the original part carries explicit automotive-grade qualification (AEC-Q101), the substitute from STMicroelectronics is suitable for applications requiring equivalent performance characteristics in the specified parameter range.

Frequently Asked Questions (FAQ)

Q: Can the STPS20H100CG-TR be used as a direct replacement for the MB20H90CTHE3_A/I?

A: Yes. The STPS20H100CG-TR is a direct substitute. Both components share identical diode configuration, package type, current rating, forward voltage, and recovery speed. The substitute's higher reverse voltage rating (100 V) is compatible with applications designed for 90 V operation.

Q: What is the significance of the higher 100 V reverse voltage rating on the substitute?

A: The STPS20H100CG-TR is rated for 100 V maximum reverse voltage compared to the original 90 V rating. This higher rating provides additional voltage margin and is fully compatible with circuits designed for the 90 V specification. No circuit modifications are required.

Q: Are the packages physically identical?

A: Yes. Both the MB20H90CTHE3_A/I and STPS20H100CG-TR use the TO-263-3 D2PAK surface mount package with 2 leads plus tab. Pin configuration and footprint are identical, enabling direct board-level substitution.

Q: What is the difference in forward voltage between the two parts?

A: Both components specify 770 mV maximum forward voltage at 10 A. There is no difference in this parameter.

Q: Why is the original part classified as Obsolete?

A: The MB20H90CTHE3_A/I is listed as Obsolete by Vishay General Semiconductor. The STPS20H100CG-TR from STMicroelectronics maintains Active product status, ensuring continued manufacturing and availability.

Q: Are there any temperature range differences?

A: Both components specify a maximum junction temperature of 175°C. The original part specifies an operating range of -65°C to 175°C. The substitute meets or exceeds these thermal specifications.

Q: Do both parts meet the same compliance standards?

A: Yes. Both components are ROHS3 Compliant, REACH Unaffected, and carry identical Moisture Sensitivity Level (MSL) ratings of 1 (Unlimited). Both are classified under ECCN EAR99 and HTSUS 8541.10.0080.

Q: What is the reverse leakage current specification for each part?

A: The MB20H90CTHE3_A/I specifies 4.5 µA reverse leakage at 90 V. The STPS20H100CG-TR specifies 4.5 µA reverse leakage at 100 V. The leakage characteristics are equivalent.