MBR750 Equivalent & Substitute Parts

Part Overview

The MBR750 is a Schottky rectifier diode manufactured by onsemi, rated for 50 V DC reverse voltage and 7.5 A average rectified current in a through-hole TO-220-2L package. This component is classified as "Not For New Designs," indicating it has been superseded in the manufacturer's product line. Finding equivalent and substitute parts is necessary for applications requiring continued support, design flexibility, or improved availability of functionally compatible alternatives.

Key Parameters

Parameter	Value
Voltage - DC Reverse (Vr) (Max)	50 V
Current - Average Rectified (Io)	7.5 A
Voltage - Forward (Vf) (Max) @ If	750 mV @ 7.5 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	500 µA @ 50 V
Mounting Type	Through Hole
Package / Case	TO-220-2
Operating Temperature - Junction	-65°C ~ 150°C
Technology	Schottky
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the MBR750 is determined by the following critical parameters:

Voltage Rating Compatibility: The substitute part must have a DC reverse voltage rating (Vr) equal to or greater than 50 V to ensure safe operation in the application circuit.

Current Rating Compatibility: The substitute part must have an average rectified current rating (Io) equal to or greater than 7.5 A to handle the required load without thermal stress.

Package and Mounting Type: Substitutes must maintain through-hole mounting in TO-220-2 package format to ensure mechanical and electrical compatibility with existing PCB layouts and thermal management solutions.

Technology and Speed: All substitutes employ Schottky diode technology with fast recovery characteristics (≤ 500ns, > 200mA) to maintain switching performance and efficiency equivalent to the original part.

Compliance Standards: All substitute parts maintain ROHS3 compliance and EAR99 classification consistent with the MBR750.

The following substitute parts meet these criteria with variations in voltage rating, current capacity, and forward voltage characteristics:

DSS10-0045A and DSS10-0045B: 45 V, 10 A rating with improved current capacity
DSS10-01AS-TRL: 100 V, 10 A rating with surface-mount TO-263AA package (alternative mounting)
MBR760-E3/45: 60 V, 7.5 A rating with matched current capacity and higher voltage margin
VT2045BP-M3/4W: 45 V, 20 A rating with significantly higher current capacity

Parameter Comparison

Parameter	MBR750	DSS10-0045A	DSS10-0045B	DSS10-01AS-TRL	MBR760-E3/45	VT2045BP-M3/4W
Manufacturer	onsemi	IXYS	IXYS	IXYS	Vishay	Vishay
Voltage - DC Reverse (Vr) (Max)	50 V	45 V	45 V	100 V	60 V	45 V
Current - Average Rectified (Io)	7.5 A	10 A	10 A	10 A	7.5 A	20 A
Voltage - Forward (Vf) (Max) @ If	750 mV @ 7.5 A	680 mV @ 10 A	510 mV @ 10 A	840 mV @ 10 A	750 mV @ 7.5 A	660 mV @ 20 A
Speed	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA
Current - Reverse Leakage @ Vr	500 µA @ 50 V	300 µA @ 45 V	5 mA @ 45 V	300 µA @ 100 V	500 µA @ 60 V	2 mA @ 45 V
Mounting Type	Through Hole	Through Hole	Through Hole	Surface Mount	Through Hole	Through Hole
Package / Case	TO-220-2	TO-220-2	TO-220-2	TO-263-3	TO-220-2	TO-220-2
Operating Temperature - Junction	-65°C ~ 150°C	-55°C ~ 175°C	-55°C ~ 150°C	-55°C ~ 175°C	-65°C ~ 175°C	Up to 200°C (Max)
Product Status	Not For New Designs	Active	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

For Direct Replacement (Matched Current Rating):

The MBR760-E3/45 provides the closest functional match to the MBR750. Both parts share identical 7.5 A current ratings and 750 mV forward voltage characteristics at rated current. The MBR760-E3/45 offers a higher 60 V reverse voltage rating, providing additional safety margin in applications with voltage transients. This part maintains active product status and ROHS3 compliance. The extended operating temperature range (-65°C ~ 175°C) accommodates broader thermal environments compared to the MBR750's -65°C ~ 150°C range.

For Higher Current Applications:

The VT2045BP-M3/4W (TMBS® series) accommodates applications requiring higher current capacity at 20 A while maintaining a 45 V reverse voltage rating. This part exhibits lower forward voltage (660 mV @ 20 A) and reduced reverse leakage (2 mA @ 45 V), resulting in improved efficiency. The extended maximum junction temperature (200°C) supports high-temperature operation. This part is suitable for applications where the MBR750's 7.5 A rating is insufficient.

For Higher Voltage Applications:

The DSS10-01AS-TRL provides 100 V reverse voltage rating with 10 A current capacity, suitable for circuits requiring higher voltage margins. This part uses surface-mount TO-263AA packaging, requiring PCB layout modifications from the through-hole TO-220-2 format. The extended operating temperature range (-55°C ~ 175°C) and active product status support long-term availability.

For Voltage-Constrained Applications:

The DSS10-0045A and DSS10-0045B operate at 45 V reverse voltage with 10 A current capacity. The DSS10-0045B variant exhibits superior forward voltage characteristics (510 mV @ 10 A) compared to DSS10-0045A (680 mV @ 10 A), resulting in lower power dissipation. Both maintain active product status and ROHS3 compliance. These parts are applicable where the MBR750's 50 V rating exceeds circuit requirements.

All substitute parts maintain Schottky technology, fast recovery characteristics, and regulatory compliance consistent with the MBR750, ensuring functional compatibility within their specified electrical parameters.

Frequently Asked Questions (FAQ)

Q: Can the DSS10-0045A or DSS10-0045B replace the MBR750 in my circuit?

A: These parts have a 45 V reverse voltage rating, which is 5 V lower than the MBR750's 50 V rating. Substitution is permissible only if the circuit's maximum reverse voltage does not exceed 45 V. Both parts provide higher current capacity (10 A vs. 7.5 A), which is compatible with the MBR750's application. Package compatibility is maintained with TO-220-2 through-hole mounting.

Q: What is the difference between DSS10-0045A and DSS10-0045B?

A: Both parts share identical voltage and current ratings (45 V, 10 A). The primary difference is forward voltage: DSS10-0045A exhibits 680 mV @ 10 A, while DSS10-0045B exhibits 510 mV @ 10 A. The DSS10-0045B variant provides lower power dissipation and improved efficiency. DSS10-0045B is supplied in Tube packaging, while DSS10-0045A packaging is unspecified in the provided data.

Q: Is the MBR760-E3/45 a direct replacement for the MBR750?

A: The MBR760-E3/45 is the closest functional equivalent. Both parts share 7.5 A current rating and 750 mV forward voltage @ 7.5 A. The MBR760-E3/45 provides a higher 60 V reverse voltage rating (vs. 50 V), offering additional voltage margin. Both use TO-220-2 through-hole packaging. The MBR760-E3/45 maintains active product status, whereas the MBR750 is not recommended for new designs.

Q: Can I use the DSS10-01AS-TRL as a substitute?

A: The DSS10-01AS-TRL is electrically compatible with 100 V reverse voltage and 10 A current capacity, exceeding the MBR750's specifications. However, this part uses surface-mount TO-263AA packaging instead of through-hole TO-220-2 mounting. PCB layout and assembly process modifications are required. This substitution is applicable only when surface-mount technology is acceptable in the design.

Q: What are the advantages of the VT2045BP-M3/4W over the MBR750?

A: The VT2045BP-M3/4W provides significantly higher current capacity (20 A vs. 7.5 A) and lower forward voltage (660 mV @ 20 A vs. 750 mV @ 7.5 A), resulting in reduced power dissipation and improved thermal efficiency. The maximum junction temperature extends to 200°C, supporting high-temperature applications. Reverse leakage is reduced to 2 mA @ 45 V. The 45 V reverse voltage rating is 5 V lower than the MBR750, requiring circuit voltage verification.

Q: Are all substitute parts ROHS3 compliant?

A: Yes, all substitute parts listed (DSS10-0045A, DSS10-0045B, DSS10-01AS-TRL, MBR760-E3/45, and VT2045BP-M3/4W) maintain ROHS3 compliance consistent with the MBR750. All parts are classified as EAR99 for export control purposes.

Q: Which substitute part has the best availability?

A: The MBR760-E3/45 has the highest inventory level at 33,200 pieces in stock. The VT2045BP-M3/4W follows with 9,158 pieces. The DSS10-0045B and DSS10-01AS-TRL each have approximately 1,000 pieces available. The DSS10-0045A has 725 pieces in stock.

Q: What is the operating temperature range difference between the MBR750 and its substitutes?

A: The MBR750 operates from -65°C to 150°C. The MBR760-E3/45 extends the upper limit to 175°C while maintaining the -65°C lower limit. The IXYS parts (DSS10-0045A, DSS10-0045B, DSS10-01AS-TRL) operate from -55°C to 175°C, raising the lower limit by 10°C. The VT2045BP-M3/4W supports operation up to 200°C maximum junction temperature, providing the widest high-temperature capability.

Q: Can I interchange TO-220-2 and TO-220AC packages?

A: The MBR750 uses TO-220-2L supplier packaging, while most substitutes use TO-220AC supplier packaging. Both designations refer to the same TO-220-2 physical package format with two leads. These are mechanically and electrically interchangeable for through-hole PCB applications. The DSS10-01AS-TRL uses TO-263AA (D2PAK) packaging, which is not interchangeable without PCB redesign.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message