MBR2035CT Equivalent & Substitute Parts

Part Overview

The MBR2035CT is a Schottky diode array in a 1 Pair Common Cathode configuration rated for 35 V DC reverse voltage and 10 A average rectified current per diode. Manufactured by Vishay General Semiconductor - Diodes Division, this component is packaged in TO-220-3 through-hole format with fast recovery characteristics suitable for switching applications.

The original MBR2035CT from Vishay is classified as obsolete product status. 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.

Key Parameters

Parameter	Value	Unit
Diode Configuration	1 Pair Common Cathode	—
Technology	Schottky	—
Voltage - DC Reverse (Vr) (Max)	35	V
Current - Average Rectified (Io) (per Diode)	10	A
Voltage - Forward (Vf) (Max) @ If	840 mV @ 20 A	—
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Current - Reverse Leakage @ Vr	100 µA @ 35 V	—
Operating Temperature - Junction	-65 to 150	°C
Mounting Type	Through Hole	—
Package / Case	TO-220-3	—
RoHS Status	RoHS non-compliant	—

Substitute Part Grouping Explanation

Substitution of the MBR2035CT is determined by strict adherence to the following electrical and mechanical parameters:

Critical Parameters for Substitution:

Diode Configuration: 1 Pair Common Cathode
Technology: Schottky
Voltage - DC Reverse (Vr) (Max): 35 V minimum
Current - Average Rectified (Io) (per Diode): 10 A minimum
Mounting Type: Through Hole
Package / Case: TO-220-3

Substitute parts are grouped into the following categories:

Category 1: Parametric Equivalents — Parts with identical electrical specifications and diode configuration. These parts maintain the same voltage rating, current rating, and functional characteristics as the original MBR2035CT.

Category 2: Direct Manufacturer Alternatives — Parts with the same part number designation from alternative manufacturers. These may have different diode configurations or current ratings but share the same package and voltage rating.

Category 3: Manufacturer Recommended Alternatives — Parts with higher voltage or current ratings that provide enhanced performance margins while maintaining compatibility with the original application requirements.

Parameter Comparison

Parameter	MBR2035CT (Vishay)	VS-MBR2035CT-M3 (Vishay)	MBR2035CT (Solid State Inc.)	MBR2535CTLG (onsemi)	STPS2045CT (STMicroelectronics)
Diode Configuration	1 Pair Common Cathode	1 Pair Common Cathode	2 Independent	1 Pair Common Cathode	1 Pair Common Cathode
Technology	Schottky	Schottky	Schottky	Schottky	Schottky
Voltage - DC Reverse (Vr) (Max)	35 V	35 V	35 V	35 V	45 V
Current - Average Rectified (Io) (per Diode)	10 A	10 A	20 A	12.5 A	10 A
Voltage - Forward (Vf) (Max) @ If	840 mV @ 20 A	840 mV @ 20 A	Not Specified	470 mV @ 12.5 A	570 mV @ 10 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)
Current - Reverse Leakage @ Vr	100 µA @ 35 V	100 µA @ 35 V	Not Specified	5 mA @ 35 V	100 µA @ 45 V
Operating Temperature - Junction	-65 to 150°C	-65 to 150°C	Not Specified	-65 to 150°C	Max 175°C
Mounting Type	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
Product Status	Obsolete	Active	Active	Active	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

VS-MBR2035CT-M3 (Vishay General Semiconductor - Diodes Division)

This part is a parametric equivalent to the original MBR2035CT with identical electrical specifications: 35 V reverse voltage, 10 A average rectified current per diode, 1 Pair Common Cathode configuration, and TO-220-3 package. The VS-MBR2035CT-M3 carries Active product status and is ROHS3 compliant, addressing regulatory requirements that the obsolete original part does not meet. This is the primary recommended substitute for direct replacement applications.

MBR2035CT (Solid State Inc.)

This alternative from Solid State Inc. maintains the same part number designation, 35 V voltage rating, and TO-220-3 package. However, it features a 2 Independent diode configuration with 20 A current rating per diode, differing from the original 1 Pair Common Cathode, 10 A configuration. This part is suitable only for applications where the different diode configuration and higher current capability are compatible with circuit requirements. ROHS3 compliance is confirmed.

MBR2535CTLG (onsemi)

This manufacturer-recommended alternative provides enhanced performance margins with a 12.5 A average rectified current rating while maintaining the 35 V voltage rating and 1 Pair Common Cathode configuration. The MBR2535CTLG exhibits lower forward voltage drop (470 mV @ 12.5 A) compared to the original specification. Product status is Active with ROHS3 compliance. This part is suitable for applications requiring improved thermal performance or higher current headroom.

STPS2045CT (STMicroelectronics)

This manufacturer-recommended alternative provides a higher voltage rating of 45 V while maintaining the 10 A current rating and 1 Pair Common Cathode configuration. The STPS2045CT features improved forward voltage characteristics (570 mV @ 10 A) and an extended maximum junction temperature of 175°C. Product status is Active with ROHS3 compliance. This part is suitable for applications requiring higher voltage margin or enhanced thermal performance.

Frequently Asked Questions (FAQ)

Q: Can VS-MBR2035CT-M3 be used as a direct replacement for the obsolete MBR2035CT?

A: Yes. The VS-MBR2035CT-M3 is a parametric equivalent with identical electrical specifications: 35 V reverse voltage, 10 A average rectified current per diode, 1 Pair Common Cathode configuration, and TO-220-3 package. Both parts share the same base product number MBR2035 and are manufactured by Vishay. The primary difference is product status (Active vs. Obsolete) and RoHS compliance (ROHS3 vs. non-compliant).

Q: What is the difference between the 1 Pair Common Cathode and 2 Independent diode configurations?

A: The 1 Pair Common Cathode configuration features two diodes sharing a common cathode terminal, resulting in three external leads. The 2 Independent configuration features two separate diodes with independent cathode terminals, also resulting in three external leads but with different internal connectivity. Circuit compatibility depends on the specific application topology. The Solid State Inc. MBR2035CT with 2 Independent configuration is not a direct functional equivalent.

Q: Why does the MBR2535CTLG have a higher current rating (12.5 A) than the original MBR2035CT (10 A)?

A: The MBR2535CTLG is from the onsemi SWITCHMODE™ series and represents an enhanced design iteration. The higher current rating reflects improved semiconductor processing and thermal characteristics. This part maintains the same 35 V voltage rating and 1 Pair Common Cathode configuration, making it suitable for applications where additional current margin is beneficial.

Q: Is the STPS2045CT compatible with circuits designed for 35 V operation?

A: Yes. The STPS2045CT is rated for 45 V reverse voltage, which exceeds the 35 V requirement of the original MBR2035CT. A higher voltage rating provides additional safety margin and does not create incompatibility. The part maintains the same 10 A current rating and 1 Pair Common Cathode configuration. Applications designed for 35 V operation will function correctly with this higher-rated component.

Q: What are the RoHS compliance implications of selecting a substitute part?

A: The original MBR2035CT is RoHS non-compliant. All substitute parts listed (VS-MBR2035CT-M3, MBR2035CT from Solid State Inc., MBR2535CTLG, and STPS2045CT) are ROHS3 compliant. If the application or end-product requires RoHS compliance, any of these substitutes will satisfy regulatory requirements. If legacy non-compliant status is required, only the original obsolete part would apply.

Q: Can the MBR2035CT from Solid State Inc. be used in place of the Vishay MBR2035CT?

A: Substitution is possible only if the application circuit is compatible with a 2 Independent diode configuration instead of 1 Pair Common Cathode. While both parts share the same part number, 35 V rating, 20 A current capability (vs. 10 A), and TO-220-3 package, the different internal diode configuration may not be functionally equivalent depending on circuit topology. Circuit analysis is required to confirm compatibility.

Q: What forward voltage characteristics should be considered when selecting a substitute?

A: The original MBR2035CT specifies 840 mV forward voltage at 20 A. The VS-MBR2035CT-M3 maintains this specification. The MBR2535CTLG specifies 470 mV @ 12.5 A, and the STPS2045CT specifies 570 mV @ 10 A. Lower forward voltage reduces power dissipation and heat generation. If thermal performance is a design constraint, the MBR2535CTLG or STPS2045CT may provide advantages. If the circuit is designed around the original 840 mV specification, the VS-MBR2035CT-M3 maintains exact compatibility.

Q: Are all substitute parts available in the same packaging format?

A: All substitute parts are packaged in TO-220-3 through-hole format, matching the original MBR2035CT. Packaging differences exist only in supplier delivery format: the original is supplied in bulk, VS-MBR2035CT-M3 in tube, MBR2535CTLG in tube, and STPS2045CT in tube. These delivery format differences do not affect component functionality or circuit compatibility.

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