MBR1045 Equivalent & Substitute Parts – Diodes, Rectifiers Reference

Part Overview

MBR1045 is a Schottky diode in the Diodes, Rectifiers category, manufactured by Taiwan Semiconductor Corporation. It features a maximum reverse voltage of 45 V and a continuous average forward current rating of 10A, housed in a TO-220AC (TO-220-2) through-hole package. The part is currently listed as Active. In inventory management, sourcing flexibility, design lifecycle management, and supply chain risk mitigation, it is necessary to identify alternative models with matched or closely aligned parameters.

Key Parameters

Parameter	Specification
Manufacturer Part Number	MBR1045
Category	Diodes, Rectifiers
Technology	Schottky
Voltage - DC Reverse (Vr) (Max)	45 V
Current - Average Rectified (Io)	10A
Voltage - Forward (Vf) (Max) @ If	700 mV @ 10 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	100 µA @ 45 V
Mounting Type	Through Hole
Package / Case	TO-220-2
Supplier Device Package	TO-220AC
Operating Temperature - Junction	-55°C ~ 150°C
RoHS Status	ROHS3 Compliant
MSL (Moisture Sensitivity Level)	1 (Unlimited)
REACH Status	REACH Unaffected
Product Status	Active

Substitute Part Grouping Explanation

Substitution is based strictly on the following key parameters provided: Voltage - DC Reverse (Vr) (Max), Current - Average Rectified (Io), Voltage - Forward (Vf) (Max) @ If, Diode Technology (Schottky), Speed, Mounting Type, Package / Case, Supplier Device Package, Operating Temperature - Junction, RoHS Status, MSL, and REACH Status. Only components matching these category-defining attributes are included as direct or similar substitutes.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Technology	Voltage - DC Reverse (Vr) (Max)	Current - Average Rectified (Io)	Voltage - Forward (Vf) (Max) @ If	Speed	Current - Reverse Leakage @ Vr	Mounting Type	Package / Case	Supplier Device Package	Operating Temperature - Junction	RoHS Status	MSL	REACH Status	Product Status
MBR1045	Taiwan Semiconductor Corporation	Schottky	45 V	10A	700 mV @ 10 A	Fast Recovery ≤ 500ns, > 200mA (Io)	100 µA @ 45 V	Through Hole	TO-220-2	TO-220AC	-55°C ~ 150°C	ROHS3 Compliant	1 (Unlimited)	REACH Unaffected	Active
10TQ045	SMC Diode Solutions	Schottky	45 V	10A	570 mV @ 10 A	Fast Recovery ≤ 500ns, > 200mA (Io)	2 mA @ 45 V	Through Hole	TO-220-2	TO-220AC	-55°C ~ 175°C	ROHS3 Compliant	1 (Unlimited)	REACH Affected	Active
VT2045BP-M3/4W	Vishay General Semiconductor - Diodes Division	Schottky	45 V	20A	660 mV @ 20 A	Fast Recovery ≤ 500ns, > 200mA (Io)	2 mA @ 45 V	Through Hole	TO-220-2	TO-220AC	200°C (Max)	ROHS3 Compliant	1 (Unlimited)	REACH Unaffected	Active

Engineering Selection Recommendations

All substitute parts listed—MBR1045, 10TQ045, and VT2045BP-M3/4W—are RoHS3 compliant with a Moisture Sensitivity Level (MSL) of 1 (Unlimited). MBR1045 and VT2045BP-M3/4W are specified as REACH Unaffected, and 10TQ045 is REACH Affected. Each part maintains an active product status and supports standard industry compliance documentation.

Frequently Asked Questions (FAQ)

Q1: What parameters are critical when selecting a substitute for MBR1045?
A1: Substitution is based on matching voltage (DC reverse), average rectified current, diode technology, package type, speed, mounting method, and compliance status.

Q2: Are the package and mounting types standardized among these substitutes?
A2: Yes. All referenced parts utilize the TO-220-2 package, are supplied as TO-220AC, and are meant for through-hole mounting.

Q3: How does product compliance (RoHS, REACH) affect compatibility?
A3: RoHS3 compliance is uniform across all listed substitutes. REACH status varies: MBR1045 and VT2045BP-M3/4W are REACH Unaffected, while 10TQ045 is REACH Affected.

Q4: Can higher current-rated substitutes be used in place of MBR1045?
A4: Yes. VT2045BP-M3/4W offers a higher current rating but retains matching voltage and package specifications per the provided data.

Q5: Are there differences in reverse leakage current and operating temperature?
A5: Reverse leakage and operating temperature differ: MBR1045 features 100 µA at 45 V and -55°C ~ 150°C, while substitutes may vary in these specifications as provided in the comparison table. All other key electrical and mechanical parameters align within the required category criteria.

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