VS-MBRB745TRLPBF Equivalent & Substitute Parts

Part Overview

The VS-MBRB745TRLPBF is a Schottky rectifier diode manufactured by Vishay General Semiconductor - Diodes Division, rated for 45 V DC reverse voltage and 7.5 A average rectified current in a surface mount TO-263AB (D2PAK) package. This part is discontinued at DiGi Electronics, necessitating identification of equivalent alternatives that maintain identical electrical and mechanical specifications for continued circuit implementation.

Key Parameters

Parameter	Value
Technology	Schottky
Voltage - DC Reverse (Vr) (Max)	45 V
Current - Average Rectified (Io)	7.5 A
Voltage - Forward (Vf) (Max) @ If	570 mV @ 7.5 A
Speed	Fast Recovery ≤ 500 ns, > 200 mA (Io)
Current - Reverse Leakage @ Vr	100 µA @ 45 V
Package / Case	TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
Operating Temperature - Junction	-65°C ~ 150°C
Grade	Automotive
Qualification	AEC-Q101
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the VS-MBRB745TRLPBF is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Criteria:

Voltage - DC Reverse (Vr) (Max): 45 V
Current - Average Rectified (Io): 7.5 A
Voltage - Forward (Vf) (Max) @ If: 570 mV @ 7.5 A
Speed: Fast Recovery ≤ 500 ns, > 200 mA (Io)
Current - Reverse Leakage @ Vr: 100 µA @ 45 V

Mechanical Equivalence Criteria:

Package / Case: TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
Mounting Type: Surface Mount

Compliance Equivalence Criteria:

Grade: Automotive
Qualification: AEC-Q101
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)

The identified substitute parts maintain identical electrical performance, mechanical compatibility, and automotive qualification standards. Differences in packaging format (Tape & Reel versus Tube) do not affect electrical or mechanical substitution eligibility.

Parameter Comparison

Parameter	VS-MBRB745TRLPBF	VS-MBRB745TRL-M3	VS-MBRB745-M3
Manufacturer	Vishay General Semiconductor - Diodes Division	Vishay General Semiconductor - Diodes Division	Vishay General Semiconductor - Diodes Division
Category	Diodes, Rectifiers	Diodes, Rectifiers	Diodes, Rectifiers
Technology	Schottky	Schottky	Schottky
Voltage - DC Reverse (Vr) (Max)	45 V	45 V	45 V
Current - Average Rectified (Io)	7.5 A	7.5 A	7.5 A
Voltage - Forward (Vf) (Max) @ If	570 mV @ 7.5 A	570 mV @ 7.5 A	570 mV @ 7.5 A
Speed	Fast Recovery ≤ 500 ns, > 200 mA (Io)	Fast Recovery ≤ 500 ns, > 200 mA (Io)	Fast Recovery ≤ 500 ns, > 200 mA (Io)
Current - Reverse Leakage @ Vr	100 µA @ 45 V	100 µA @ 45 V	100 µA @ 45 V
Capacitance @ Vr, F	Not specified	400 pF @ 5 V, 1 MHz	400 pF @ 5 V, 1 MHz
Package / Case	TO-263-3, D2PAK (2 Leads + Tab), TO-263AB	TO-263-3, D2PAK (2 Leads + Tab), TO-263AB	TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
Operating Temperature - Junction	-65°C ~ 150°C	-65°C ~ 150°C	-65°C ~ 150°C
Grade	Automotive	Automotive	Automotive
Qualification	AEC-Q101	AEC-Q101	AEC-Q101
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Discontinued at DiGi Electronics	Active	Active
Packaging Format	Bulk	Tape & Reel (TR)	Tube

Engineering Selection Recommendations

VS-MBRB745TRL-M3 is the direct manufacturer equivalent supplied in Tape & Reel packaging format. This part maintains active product status and is suitable for high-volume production environments requiring automated assembly processes. All electrical specifications, automotive qualification (AEC-Q101), and compliance certifications are identical to the discontinued VS-MBRB745TRLPBF.

VS-MBRB745-M3 is the parametric equivalent supplied in Tube packaging format. This part maintains active product status and is suitable for lower-volume applications or manual assembly processes. All electrical specifications, automotive qualification (AEC-Q101), and compliance certifications are identical to the discontinued VS-MBRB745TRLPBF.

Both substitute parts are manufactured by Vishay General Semiconductor - Diodes Division and provide direct functional replacement without circuit redesign. Selection between the two substitutes depends solely on packaging and supply chain requirements.

Frequently Asked Questions (FAQ)

Q: Can VS-MBRB745TRL-M3 or VS-MBRB745-M3 be used as direct replacements for VS-MBRB745TRLPBF?

A: Yes. Both parts are electrically and mechanically equivalent. They maintain identical voltage ratings (45 V), current ratings (7.5 A), forward voltage characteristics (570 mV @ 7.5 A), and automotive qualification (AEC-Q101). The TO-263AB (D2PAK) package is identical across all three part numbers, ensuring PCB footprint compatibility.

Q: What is the difference between the three part numbers?

A: The primary difference is packaging format. VS-MBRB745TRLPBF was supplied in bulk format and is discontinued. VS-MBRB745TRL-M3 is supplied in Tape & Reel format for automated assembly. VS-MBRB745-M3 is supplied in Tube format for manual assembly or lower-volume applications. All three parts are electrically and mechanically identical.

Q: Are these parts suitable for automotive applications?

A: Yes. All three parts carry the Automotive grade designation and AEC-Q101 qualification, confirming suitability for automotive circuit implementation.

Q: What is the significance of the capacitance specification in the substitute parts?

A: The substitute parts specify capacitance (400 pF @ 5 V, 1 MHz), while the original part does not. This additional specification does not affect substitution eligibility and provides additional design reference data for high-frequency applications.

Q: Are there any compliance or environmental differences between these parts?

A: No. All three parts are ROHS3 compliant, REACH unaffected, and carry MSL 1 (Unlimited) moisture sensitivity rating. Compliance and environmental certifications are identical.

Q: Which substitute part should be selected for new designs?

A: Selection depends on supply chain and assembly requirements. VS-MBRB745TRL-M3 (Tape & Reel) is standard for automated production environments. VS-MBRB745-M3 (Tube) is suitable for manual assembly or lower-volume applications. Both are electrically and mechanically equivalent.

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