MBR2050CT Equivalent & Substitute Parts

Part Overview

The MBR2050CT is a Schottky diode array manufactured by onsemi, configured as 1 pair common cathode with a maximum reverse voltage of 50 V and average rectified current of 20 A per diode. The device is packaged in TO-220-3 through-hole configuration and operates across a junction temperature range of -65°C to 150°C.

The MBR2050CT 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 component.

Key Parameters

Parameter	Value	Unit
Diode Configuration	1 Pair Common Cathode	—
Technology	Schottky	—
Voltage - DC Reverse (Vr) (Max)	50	V
Current - Average Rectified (Io) (per Diode)	20	A
Voltage - Forward (Vf) (Max) @ If	950 mV @ 20 A	—
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Current - Reverse Leakage @ Vr	150	µA @ 50 V
Operating Temperature - Junction	-65 to 150	°C
Mounting Type	Through Hole	—
Package / Case	TO-220-3	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the MBR2050CT is determined by the following critical parameters:

Mandatory Matching Parameters:

Diode Configuration: 1 Pair Common Cathode
Technology: Schottky
Mounting Type: Through Hole
Voltage - DC Reverse (Vr) (Max): 50 V (or higher)
Current - Average Rectified (Io) (per Diode): 20 A (or higher)
Speed: Fast Recovery ≤ 500ns, > 200mA (Io)

Package Compatibility:

Primary: TO-220-3 (direct mechanical and electrical compatibility)
Secondary: TO-247-3 (compatible electrical performance with different form factor)

Substitution Categories:

Direct Equivalents (TO-220-3 Package): Parts meeting all mandatory parameters with identical or superior electrical ratings and TO-220-3 packaging.

Parametric Equivalents (Alternative Packages): Parts meeting all mandatory parameters with identical or superior electrical ratings but in alternative through-hole packages (TO-247-3).

Functional Substitutes (Reduced Current Rating): Parts with reduced current ratings (10 A vs. 20 A) that maintain voltage and configuration compatibility but are suitable only for applications with lower current requirements.

Parameter Comparison

Parameter	MBR2050CT (onsemi)	MBR20L45CTG (onsemi)	VT2060C-M3/4W (Vishay)	MBR2050CT (Fairchild)	MBR2050CT C0G (TSC)	MBR2050CTHC0G (TSC)	MBR2050PT C0G (TSC)
Manufacturer	onsemi	onsemi	Vishay	Fairchild	Taiwan Semiconductor	Taiwan Semiconductor	Taiwan Semiconductor
Diode Configuration	1 Pair Common Cathode	1 Pair Common Cathode	1 Pair Common Cathode	1 Pair Common Cathode	1 Pair Common Cathode	1 Pair Common Cathode	1 Pair Common Cathode
Technology	Schottky	Schottky	Schottky	Schottky	Schottky	Schottky	Schottky
Voltage - DC Reverse (Vr) (Max)	50 V	45 V	60 V	50 V	50 V	50 V	50 V
Current - Average Rectified (Io) (per Diode)	20 A	10 A	10 A	—	20 A	20 A	20 A
Voltage - Forward (Vf) (Max) @ If	950 mV @ 20 A	500 mV @ 10 A	650 mV @ 10 A	800 mV @ 10 A	950 mV @ 20 A	950 mV @ 20 A	950 mV @ 20 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	150 µA @ 50 V	500 µA @ 45 V	850 µA @ 60 V	1 mA @ 50 V	100 µA @ 50 V	100 µA @ 50 V	100 µA @ 50 V
Operating Temperature - Junction	-65 to 150 °C	-55 to 150 °C	-55 to 150 °C	-65 to 150 °C	-55 to 150 °C	-55 to 150 °C	-55 to 150 °C
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	TO-220-3	TO-220-3	TO-220-3	TO-220-3	TO-220-3	TO-220-3	TO-247-3
Product Status	Obsolete	Obsolete	Active	Active	Active	Active	Active
RoHS Status	—	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Automotive Grade / AEC-Q101	—	—	Yes / AEC-Q101	—	—	Yes / AEC-Q101	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

Direct Equivalents for TO-220-3 Applications:

The MBR2050CT C0G and MBR2050CTHC0G manufactured by Taiwan Semiconductor Corporation are direct parametric equivalents with identical electrical specifications (50 V, 20 A, 950 mV forward voltage at 20 A). Both devices are active products with ROHS3 compliance. The MBR2050CTHC0G includes automotive-grade qualification (AEC-Q101) and is suitable for applications requiring automotive reliability standards. These parts provide full electrical and mechanical compatibility with the original MBR2050CT in TO-220-3 packaging.

The MBR2050CT manufactured by Fairchild Semiconductor is a parametric equivalent with matching voltage and package specifications. This device is active and ROHS3 compliant. Forward voltage is specified at 10 A (800 mV) rather than 20 A, and reverse leakage is higher (1 mA @ 50 V). This part is suitable for applications where the original MBR2050CT specifications are required.

Alternative Package Option:

The MBR2050PT C0G manufactured by Taiwan Semiconductor Corporation provides identical electrical performance (50 V, 20 A, 950 mV forward voltage at 20 A) in TO-247-3 packaging. This part is active and ROHS3 compliant. The TO-247-3 package offers improved thermal performance and is suitable for applications where the larger form factor is acceptable or beneficial.

Functional Substitutes with Reduced Current Rating:

The MBR20L45CTG manufactured by onsemi is a functional substitute with reduced current rating (10 A vs. 20 A) and lower reverse voltage (45 V vs. 50 V). This part is obsolete and ROHS3 compliant. Substitution is limited to applications with maximum current requirements of 10 A or less.

The VT2060C-M3/4W manufactured by Vishay is a functional substitute with reduced current rating (10 A vs. 20 A) but higher reverse voltage (60 V vs. 50 V). This part is active, ROHS3 compliant, and includes automotive-grade qualification (AEC-Q101). Substitution is limited to applications with maximum current requirements of 10 A or less.

Product Status Considerations:

The original MBR2050CT (onsemi) is obsolete. Active alternatives are available from Taiwan Semiconductor Corporation (MBR2050CT C0G, MBR2050CTHC0G, MBR2050PT C0G), Fairchild Semiconductor (MBR2050CT), and Vishay (VT2060C-M3/4W). For new designs and ongoing production, active products are preferred to ensure long-term supply availability.

Frequently Asked Questions (FAQ)

Q: Can the MBR2050CT be replaced with the MBR20L45CTG?

A: The MBR20L45CTG is a functional substitute only for applications with maximum current requirements of 10 A or less. The MBR20L45CTG has a reduced current rating (10 A vs. 20 A) and lower reverse voltage (45 V vs. 50 V). If the application requires the full 20 A current capacity or 50 V reverse voltage of the original MBR2050CT, the MBR20L45CTG is not suitable.

Q: What is the difference between the MBR2050CT C0G and MBR2050CTHC0G?

A: Both parts are manufactured by Taiwan Semiconductor Corporation and have identical electrical specifications (50 V, 20 A, 950 mV forward voltage at 20 A) in TO-220-3 packaging. The MBR2050CTHC0G includes automotive-grade qualification (AEC-Q101), making it suitable for applications requiring automotive reliability standards. The MBR2050CT C0G does not carry automotive qualification.

Q: Can the MBR2050PT C0G be used as a direct replacement for the MBR2050CT?

A: The MBR2050PT C0G provides identical electrical performance (50 V, 20 A, 950 mV forward voltage at 20 A) but is packaged in TO-247-3 instead of TO-220-3. Electrical compatibility is complete. Mechanical compatibility depends on the application's PCB layout and thermal requirements. The TO-247-3 package offers improved thermal performance compared to TO-220-3.

Q: Is the Fairchild MBR2050CT equivalent to the onsemi MBR2050CT?

A: The Fairchild MBR2050CT is a parametric equivalent with matching voltage (50 V) and package (TO-220-3) specifications. Forward voltage is specified at 10 A (800 mV) rather than 20 A, and reverse leakage is higher (1 mA @ 50 V vs. 150 µA). The part is active and ROHS3 compliant. Electrical compatibility is established for the specified parameters.

Q: Why is the VT2060C-M3/4W listed as a substitute if it has a higher voltage rating?

A: The VT2060C-M3/4W has a higher reverse voltage rating (60 V vs. 50 V), which provides additional voltage margin. However, it has a reduced current rating (10 A vs. 20 A). This part is a functional substitute only for applications with maximum current requirements of 10 A or less. The higher voltage rating does not create incompatibility; it provides additional design margin for voltage stress.

Q: What does "1 Pair Common Cathode" configuration mean?

A: The diode array contains two diodes sharing a common cathode connection. This configuration is essential for certain rectifier and switching applications. All listed substitute parts maintain this same configuration, ensuring functional compatibility.

Q: Are all substitute parts ROHS3 compliant?

A: All active substitute parts listed (MBR2050CT C0G, MBR2050CTHC0G, MBR2050PT C0G from Taiwan Semiconductor; MBR2050CT from Fairchild; VT2060C-M3/4W from Vishay) are ROHS3 compliant. The obsolete MBR20L45CTG is also ROHS3 compliant. ROHS3 compliance ensures compliance with hazardous substance restrictions.

Q: Which substitute part is recommended for automotive applications?

A: The MBR2050CTHC0G manufactured by Taiwan Semiconductor Corporation is qualified for automotive applications with AEC-Q101 certification. The VT2060C-M3/4W manufactured by Vishay also carries AEC-Q101 qualification but has a reduced current rating (10 A vs. 20 A).

Q: What is the significance of the MSL rating?

A: All listed parts have Moisture Sensitivity Level (MSL) 1 (Unlimited), indicating unlimited shelf life without moisture control measures. This simplifies storage and handling requirements compared to parts with higher MSL ratings.

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