MBR2090CT Equivalent & Substitute Parts

Part Overview

The MBR2090CT is a Schottky diode array in a 1 Pair Common Cathode configuration rated for 90 V DC reverse voltage and 10 A average rectified current per diode. Manufactured by onsemi in the SWITCHMODE™ series, this component is packaged in TO-220-3 through-hole format with fast recovery characteristics (≤500ns). The MBR2090CT is currently listed as obsolete, necessitating identification of active equivalent and substitute parts for ongoing design requirements and procurement needs.

Key Parameters

Parameter	Value
Diode Configuration	1 Pair Common Cathode
Technology	Schottky
Voltage - DC Reverse (Vr) (Max)	90 V
Current - Average Rectified (Io) (per Diode)	10 A
Voltage - Forward (Vf) (Max) @ If	850 mV @ 10 A
Speed	Fast Recovery ≤500ns, >200mA (Io)
Current - Reverse Leakage @ Vr	100 µA @ 90 V
Operating Temperature - Junction	-65°C ~ 175°C
Mounting Type	Through Hole
Package / Case	TO-220-3

Substitute Part Grouping Explanation

Substitution of the MBR2090CT is determined by strict equivalence across the following electrical and mechanical parameters:

Primary Substitution Criteria:

Diode Configuration: 1 Pair Common Cathode
Technology: Schottky
Voltage - DC Reverse (Vr) (Max): 90 V
Mounting Type: Through Hole
Package / Case: TO-220-3

Secondary Compatibility Parameters:

Current - Average Rectified (Io) (per Diode): 10 A minimum
Voltage - Forward (Vf) (Max) @ If: Within acceptable operating range
Speed: Fast Recovery ≤500ns, >200mA (Io)
Current - Reverse Leakage @ Vr: 100 µA @ 90 V or lower

Substitute parts are grouped into two categories: Direct Equivalents (identical electrical and mechanical specifications with active product status) and Functional Equivalents (higher current ratings or modified electrical characteristics that maintain core functionality within the 90 V / 10 A design envelope).

Parameter Comparison

Part Number	Manufacturer	Vr (Max)	Io (per Diode)	Vf (Max) @ If	Reverse Leakage @ Vr	Tj (Operating)	Package	Product Status	RoHS Status
MBR2090CT	onsemi	90 V	10 A	850 mV @ 10 A	100 µA @ 90 V	-65°C ~ 175°C	TO-220-3	Obsolete	RoHS non-compliant
MBR2090CTG	onsemi	90 V	10 A	850 mV @ 10 A	100 µA @ 90 V	-65°C ~ 175°C	TO-220-3	Active	ROHS3 Compliant
MBR2090CT-E3/4W	Vishay General Semiconductor - Diodes Division	90 V	10 A	800 mV @ 10 A	100 µA @ 90 V	-65°C ~ 150°C	TO-220-3	Active	ROHS3 Compliant
MBR2090CT-M3/4W	Vishay General Semiconductor - Diodes Division	90 V	10 A	800 mV @ 10 A	100 µA @ 90 V	-65°C ~ 150°C	TO-220-3	Active	ROHS3 Compliant
VS-MBR2090CT-M3	Vishay General Semiconductor - Diodes Division	90 V	10 A	950 mV @ 20 A	100 µA @ 90 V	-65°C ~ 150°C	TO-220-3	Active	ROHS3 Compliant
MBR3090CTE3/TU	Microchip Technology	90 V	15 A	800 mV @ 15 A	50 µA @ 90 V	-65°C ~ 175°C	TO-220-3	Active	ROHS3 Compliant
MBR3090FCTE3/TU	Microchip Technology	90 V	15 A	800 mV @ 15 A	50 µA @ 90 V	-65°C ~ 175°C	TO-220-3	Active	ROHS3 Compliant

Engineering Selection Recommendations

Direct Equivalent (Recommended Primary Choice):

MBR2090CTG (onsemi) is the direct active equivalent to the obsolete MBR2090CT. This part maintains identical electrical specifications (90 V, 10 A, 850 mV forward voltage) and mechanical packaging (TO-220-3). The primary distinction is product status (Active vs. Obsolete) and RoHS3 compliance, making MBR2090CTG the preferred replacement for new designs and ongoing procurement.

Functional Equivalents (Vishay TMBS® Series):

MBR2090CT-E3/4W and MBR2090CT-M3/4W (Vishay General Semiconductor - Diodes Division) are functionally equivalent with identical voltage and current ratings. These parts feature improved forward voltage characteristics (800 mV @ 10 A versus 850 mV @ 10 A) and ROHS3 compliance. Operating temperature range is reduced to -65°C ~ 150°C. Both are supplied in tube packaging and are suitable for applications where the lower forward voltage provides thermal or efficiency benefits.

Higher Current Functional Equivalents:

MBR3090CTE3/TU and MBR3090FCTE3/TU (Microchip Technology) provide 15 A current rating with identical 90 V reverse voltage. These parts are suitable for designs requiring higher current capacity within the same voltage class. Reverse leakage is reduced to 50 µA @ 90 V, and operating temperature range extends to -65°C ~ 175°C, matching the original MBR2090CT specification. These parts are appropriate for applications where current headroom or improved leakage characteristics are beneficial.

Vishay VS-MBR2090CT-M3 Consideration:

VS-MBR2090CT-M3 maintains the 10 A current rating and 90 V voltage specification but specifies forward voltage at 20 A (950 mV @ 20 A) rather than 10 A. This part is suitable for direct substitution where forward voltage measurement conditions differ from standard specifications.

All recommended substitutes maintain Schottky technology, 1 Pair Common Cathode configuration, fast recovery characteristics, and TO-220-3 through-hole packaging. Selection should be based on compliance requirements (RoHS3), operating temperature range, and thermal performance needs of the specific application.

Frequently Asked Questions (FAQ)

Q: Can MBR2090CTG be used as a direct replacement for MBR2090CT?

A: Yes. MBR2090CTG is the direct active equivalent manufactured by onsemi. It maintains identical electrical specifications (90 V reverse voltage, 10 A average rectified current, 850 mV forward voltage @ 10 A) and TO-220-3 packaging. The primary difference is product status (Active vs. Obsolete) and ROHS3 compliance certification.

Q: What is the difference between MBR2090CT-E3/4W and MBR2090CT-M3/4W?

A: Both parts are manufactured by Vishay General Semiconductor - Diodes Division and share identical electrical ratings (90 V, 10 A, 800 mV forward voltage @ 10 A) and TO-220-3 packaging. The designations E3/4W and M3/4W represent different product variants within Vishay's TMBS® series. Both are functionally equivalent for substitution purposes.

Q: Why do the Microchip MBR3090 parts have higher current ratings (15 A vs. 10 A)?

A: MBR3090CTE3/TU and MBR3090FCTE3/TU are higher-current variants of the MBR2090 base product. They maintain the same 90 V reverse voltage and TO-220-3 package but are rated for 15 A average rectified current per diode. These parts are suitable for applications requiring additional current capacity or thermal margin within the 90 V voltage class.

Q: Are all substitute parts RoHS3 compliant?

A: All recommended substitute parts (MBR2090CTG, MBR2090CT-E3/4W, MBR2090CT-M3/4W, MBR3090CTE3/TU, MBR3090FCTE3/TU, VS-MBR2090CT-M3) are ROHS3 compliant. The original MBR2090CT is RoHS non-compliant, making compliance certification an important consideration for new designs and regulatory requirements.

Q: What is the operating temperature range difference between substitutes?

A: The original MBR2090CT and Microchip equivalents (MBR3090CTE3/TU, MBR3090FCTE3/TU) operate from -65°C to 175°C. Vishay parts (MBR2090CT-E3/4W, MBR2090CT-M3/4W, VS-MBR2090CT-M3) operate from -65°C to 150°C. Applications requiring operation above 150°C should select onsemi MBR2090CTG or Microchip MBR3090 variants.

Q: Can I use a 15 A rated part (MBR3090) in a circuit designed for 10 A (MBR2090)?

A: Yes. The MBR3090CTE3/TU and MBR3090FCTE3/TU are rated for 15 A and maintain identical 90 V reverse voltage and TO-220-3 packaging. Higher current rating provides additional design margin and thermal headroom. Forward voltage characteristics (800 mV @ 15 A) are comparable to the original part at 10 A operation.

Q: What packaging formats are available for these substitutes?

A: All substitute parts are packaged in TO-220-3 through-hole format, maintaining mechanical compatibility with the original MBR2090CT. MBR2090CTG is supplied in standard packaging. Vishay parts (MBR2090CT-E3/4W, MBR2090CT-M3/4W, VS-MBR2090CT-M3) are supplied in tube packaging. Microchip parts (MBR3090CTE3/TU, MBR3090FCTE3/TU) are supplied in tube packaging (TO-220AB variant).

Q: How do forward voltage specifications differ between substitutes?

A: Original MBR2090CT specifies 850 mV @ 10 A. Vishay TMBS® parts specify 800 mV @ 10 A (lower forward voltage). Microchip MBR3090 parts specify 800 mV @ 15 A. VS-MBR2090CT-M3 specifies 950 mV @ 20 A. Lower forward voltage reduces power dissipation and heat generation in the application circuit.

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