MBRB20200CT Equivalent & Substitute Parts

Part Overview

The MBRB20200CT is a Schottky diode array in a 1 Pair Common Cathode configuration rated for 200 V DC reverse voltage and 10 A average rectified current per diode. Manufactured by onsemi, this component is classified as Obsolete, which necessitates identification of equivalent and substitute parts for ongoing design support and procurement continuity. The part is housed in a TO-263-3 D2PAK surface mount package with fast recovery characteristics suitable for switching applications.

Substiute Parts

MBRB20200CT

onsemiIn Stock: 21250MBRB20200CT Datasheet

Current PartRFQ

MBRB20200CTG

onsemiIn Stock: 23207MBRB20200CTG Datasheet

DirectRFQ

MBRB20200CT

Diodes IncorporatedIn Stock: 21250MBRB20200CT Datasheet

DirectRFQ

STPS20150CT

STMicroelectronicsIn Stock: 102787STPS20150CT Datasheet

SimilarRFQ

VB20200C-E3/4W

Vishay General Semiconductor - Diodes DivisionIn Stock: 8114VB20200C-E3/4W Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MBRB20200CT is determined by strict equivalence across the following critical parameters:

Primary Substitution Criteria:

• Diode Configuration: 1 Pair Common Cathode
• Technology: Schottky
• Voltage - DC Reverse (Vr) (Max): 200 V minimum
• Current - Average Rectified (Io) (per Diode): 10 A minimum
• Package / Case: TO-263-3, D2PAK surface mount or equivalent footprint
• Speed: Fast Recovery ≤ 500 ns, > 200 mA (Io)

Direct Equivalents maintain all primary parameters and identical package specifications, enabling pin-for-pin replacement without circuit modification.

Similar Parts meet the core electrical requirements but may differ in secondary parameters such as forward voltage characteristics, reverse leakage current, operating temperature range, or mounting technology. These parts require circuit-level evaluation to confirm functional compatibility.

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalent - MBRB20200CTG (onsemi)

The MBRB20200CTG is a direct equivalent to the MBRB20200CT. Both parts share identical electrical specifications, diode configuration, voltage and current ratings, and package form factor. The MBRB20200CTG differs only in packaging format (Tube) and achieves ROHS3 compliance, whereas the original part is RoHS non-compliant. This part is classified as Obsolete but maintains full electrical and mechanical compatibility for direct substitution.

Direct Equivalent - MBRB20200CT (Diodes Incorporated)

The MBRB20200CT manufactured by Diodes Incorporated provides direct pin-for-pin compatibility with the onsemi MBRB20200CT. This part is Active in product status and carries AEC-Q101 automotive qualification. Forward voltage is marginally lower at 890 mV versus 900 mV, and reverse leakage current is significantly lower at 100 µA versus 1 mA. Operating temperature range extends to 175°C maximum junction temperature compared to 150°C for the onsemi part. ROHS3 compliance is achieved. This part is suitable for applications requiring active product support and automotive-grade reliability.

Similar Part - VB20200C-E3/4W (Vishay General Semiconductor)

The VB20200C-E3/4W maintains 200 V reverse voltage rating, 10 A current rating, and TO-263-3 D2PAK surface mount package. Forward voltage is elevated at 1.6 V @ 10 A compared to 900 mV for the original part, resulting in increased power dissipation. Reverse leakage current is 150 µA @ 200 V. Operating temperature range is -40°C to 150°C. This part is Active in product status and ROHS3 compliant. Substitution requires thermal analysis to confirm acceptable power dissipation levels due to higher forward voltage drop.

Similar Part - STPS20150CT (STMicroelectronics)

The STPS20150CT is a through-hole mounted component in TO-220-3 package, differing fundamentally from the surface mount D2PAK requirement. Reverse voltage rating is reduced to 150 V, which does not meet the 200 V specification of the original part. This part is suitable only for applications where 150 V reverse voltage is acceptable and through-hole mounting is feasible. This part is Active in product status and ROHS3 compliant.

Frequently Asked Questions (FAQ)

Q: Can MBRB20200CTG be used as a direct replacement for MBRB20200CT?

A: Yes. The MBRB20200CTG is electrically and mechanically identical to the MBRB20200CT. Both parts feature 200 V reverse voltage, 10 A current rating, 1 Pair Common Cathode configuration, and TO-263-3 D2PAK surface mount package. The primary difference is packaging format and RoHS compliance status. Direct substitution is valid without circuit modification.

Q: What is the key difference between the onsemi MBRB20200CT and the Diodes Incorporated MBRB20200CT?

A: Both parts share identical part numbers but are manufactured by different suppliers. The Diodes Incorporated version is Active in product status versus Obsolete for onsemi. Forward voltage is marginally lower (890 mV vs. 900 mV), reverse leakage is significantly lower (100 µA vs. 1 mA), and maximum junction temperature is higher (175°C vs. 150°C). The Diodes Incorporated part carries AEC-Q101 automotive qualification. Pin-for-pin substitution is valid.

Q: Why is the STPS20150CT listed as a similar part if the voltage rating is lower?

A: The STPS20150CT meets the core electrical requirements of Schottky technology, 1 Pair Common Cathode configuration, and 10 A current rating. However, the 150 V reverse voltage rating is below the 200 V specification of the original part. This part is classified as similar rather than equivalent because it does not satisfy the full voltage requirement. Substitution is valid only for applications where 150 V reverse voltage is acceptable.

Q: What is the impact of higher forward voltage in the VB20200C-E3/4W?

A: The VB20200C-E3/4W exhibits forward voltage of 1.6 V @ 10 A compared to 900 mV for the MBRB20200CT. This 700 mV difference results in increased power dissipation in the diode. At 10 A current, the additional power loss is 7 W per diode. Thermal analysis of the circuit is required to confirm that junction temperature remains within acceptable limits and that heat dissipation capability of the D2PAK package is sufficient.

Q: Are all substitute parts RoHS compliant?

A: The original MBRB20200CT (onsemi) is RoHS non-compliant. All listed substitute parts—MBRB20200CTG, MBRB20200CT (Diodes Inc.), STPS20150CT, and VB20200C-E3/4W—are ROHS3 compliant. If RoHS compliance is a design requirement, any of the substitute parts satisfy this criterion.

Q: Can the through-hole STPS20150CT be used in place of the surface mount MBRB20200CT?

A: No. The STPS20150CT is mounted through-hole in TO-220-3 package, whereas the MBRB20200CT is surface mount in TO-263-3 D2PAK package. These packages are mechanically and electrically incompatible. Additionally, the STPS20150CT voltage rating of 150 V does not meet the 200 V requirement. Substitution is not valid without complete circuit board redesign.

Q: What is the operating temperature range difference between substitute parts?

A: The original MBRB20200CT operates from -65°C to 150°C junction temperature. The Diodes Incorporated MBRB20200CT extends to -55°C to 175°C. The VB20200C-E3/4W operates from -40°C to 150°C. The STPS20150CT maximum junction temperature is 175°C. Selection depends on application temperature requirements and thermal management capability.