VS-MBRB2545CTTRLP Equivalent & Substitute Parts

Part Overview

The VS-MBRB2545CTTRLP is a Schottky diode array manufactured by Vishay General Semiconductor - Diodes Division. This component features a 1 Pair Common Cathode configuration rated for 45 V DC reverse voltage and 15 A average rectified current per diode. The part is packaged in TO-263-3 (D2PAK) surface mount format with fast recovery characteristics suitable for high-frequency switching applications.

The VS-MBRB2545CTTRLP is currently discontinued at DiGi Electronics. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements. Alternative parts must maintain electrical performance within the specified parameter ranges while accommodating packaging and availability constraints.

Key Parameters

Parameter	Value	Unit
Diode Configuration	1 Pair Common Cathode	—
Technology	Schottky	—
Voltage - DC Reverse (Vr) (Max)	45	V
Current - Average Rectified (Io) (per Diode)	15	A
Voltage - Forward (Vf) (Max) @ If	820 mV @ 30 A	—
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Current - Reverse Leakage @ Vr	200	µA @ 45 V
Operating Temperature - Junction	-65 to 150	°C
Mounting Type	Surface Mount	—
Package / Case	TO-263-3, D2PAK (2 Leads + Tab), TO-263AB	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution eligibility for the VS-MBRB2545CTTRLP is determined by strict adherence to the following electrical and mechanical parameters:

Critical Parameters (Must Match):

Diode Configuration: 1 Pair Common Cathode
Technology: Schottky
Voltage - DC Reverse (Vr) (Max): 45 V
Package / Case: TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
Mounting Type: Surface Mount

Performance Parameters (Must Meet or Exceed):

Current - Average Rectified (Io) (per Diode): ≥ 15 A
Voltage - Forward (Vf) (Max) @ If: ≤ 820 mV @ 30 A
Speed: Fast Recovery ≤ 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr: ≤ 200 µA @ 45 V

Compliance Parameters:

RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)

Substitute parts are grouped into three categories based on their relationship to the main part: Direct Manufacturer Equivalents (same manufacturer, identical electrical specifications, different packaging), Parametric Equivalents (identical electrical specifications, different manufacturers or packaging), and Manufacturer-Recommended Alternatives (different electrical specifications within acceptable ranges, manufacturer-endorsed substitutes).

Parameter Comparison

Parameter	VS-MBRB2545CTTRLP (Main)	VS-MBRB2545CTL-M3	VS-MBRB2545CT-M3	SBRB2545CTG	STPS2545CGY-TR	MBRB2545CTT4G
Manufacturer	Vishay	Vishay	Vishay	onsemi	STMicroelectronics	onsemi
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
Technology	Schottky	Schottky	Schottky	Schottky	Schottky	Schottky
Voltage - DC Reverse (Vr) (Max)	45 V	45 V	45 V	45 V	45 V	45 V
Current - Average Rectified (Io) (per Diode)	15 A	15 A	15 A	15 A	12.5 A	15 A
Voltage - Forward (Vf) (Max) @ If	820 mV @ 30 A	820 mV @ 30 A	820 mV @ 30 A	620 mV @ 15 A	840 mV @ 25 A	820 mV @ 30 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)
Current - Reverse Leakage @ Vr	200 µA @ 45 V	200 µA @ 45 V	200 µA @ 45 V	200 µA @ 45 V	125 µA @ 45 V	200 µA @ 45 V
Operating Temperature - Junction	-65 to 150 °C	-65 to 150 °C	-65 to 150 °C	-65 to 175 °C	-40 to 175 °C	-65 to 175 °C
Package / Case	TO-263-3, D2PAK	TO-263-3, D2PAK	TO-263-3, D2PAK	TO-263-3, D2PAK	TO-263-3, D2PAK	TO-263-3, D2PAK
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Packaging	Tube	Tape & Reel (TR)	Tube	Tube	Tape & Reel (TR)	Tape & Reel (TR)
Product Status	Discontinued	Active	Active	Obsolete	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Inventory Status	959 Pcs	828 Pcs	986 Pcs	20200 Pcs	3100 Pcs	53514 Pcs

Engineering Selection Recommendations

Direct Manufacturer Equivalent - Preferred for Pin-Compatible Replacement:

VS-MBRB2545CTL-M3 (Tape & Reel packaging) and VS-MBRB2545CT-M3 (Tube packaging) are direct Vishay equivalents with identical electrical specifications to the main part. Both are currently Active in product status, ensuring long-term availability. These parts maintain all critical parameters including 45 V reverse voltage, 15 A current rating, 820 mV forward voltage, and fast recovery characteristics. The primary difference is packaging format: VS-MBRB2545CTL-M3 is supplied in Tape & Reel format suitable for automated assembly, while VS-MBRB2545CT-M3 is supplied in Tube format. Both comply with ROHS3 and carry MSL 1 rating. Selection between these two should be based on assembly process requirements.

Parametric Equivalent - Full Electrical Compatibility:

MBRB2545CTT4G (onsemi, SWITCHMODE™ series) is a parametric equivalent manufactured by onsemi with identical electrical specifications to the main part. This part meets all critical parameters: 45 V reverse voltage, 15 A current rating, 820 mV forward voltage, and fast recovery characteristics. MBRB2545CTT4G is supplied in Tape & Reel format and is currently Active in product status with the highest inventory availability (53514 Pcs). Operating temperature range extends to 175 °C compared to the main part's 150 °C maximum. This part is suitable for direct substitution in applications where onsemi component qualification is acceptable.

Manufacturer-Recommended Alternative - Acceptable with Parameter Variance:

STPS2545CGY-TR (STMicroelectronics) is a manufacturer-recommended substitute with minor parameter variations. This part maintains the 45 V reverse voltage and TO-263-3 D2PAK package format. Current rating is 12.5 A (versus 15 A for the main part), representing a 16.7% reduction in average rectified current capacity. Forward voltage is 840 mV @ 25 A (versus 820 mV @ 30 A), indicating slightly higher forward voltage drop. Reverse leakage current is 125 µA @ 45 V (lower than the main part's 200 µA). STPS2545CGY-TR is supplied in Tape & Reel format, is currently Active in product status, and carries AEC-Q101 automotive qualification. This part is suitable for applications where the reduced current rating does not exceed design requirements and automotive-grade qualification is beneficial.

Obsolete Alternative - Not Recommended for New Designs:

SBRB2545CTG (onsemi, SWITCHMODE™ series) is classified as Obsolete in product status. Although this part meets electrical specifications with identical 45 V reverse voltage and 15 A current rating, and offers improved forward voltage characteristics (620 mV @ 15 A), its obsolete status presents supply chain risk. The part is supplied in Tube format and has extended operating temperature range (-65 to 175 °C). This part should not be selected for new designs or long-term production commitments.

Frequently Asked Questions (FAQ)

Q: Can VS-MBRB2545CTL-M3 be used as a direct replacement for VS-MBRB2545CTTRLP?

A: Yes. VS-MBRB2545CTL-M3 is a direct Vishay equivalent with identical electrical specifications. The primary difference is packaging format: VS-MBRB2545CTL-M3 is supplied in Tape & Reel (TR) format, while the original part is supplied in Tube format. Both parts are pin-compatible, maintain identical electrical performance, and are currently Active in product status. Selection depends on assembly process requirements.

Q: What is the difference between VS-MBRB2545CT-M3 and VS-MBRB2545CTL-M3?

A: Both parts are Vishay direct equivalents with identical electrical specifications. The difference is packaging format: VS-MBRB2545CT-M3 is supplied in Tube packaging, while VS-MBRB2545CTL-M3 is supplied in Tape & Reel (TR) packaging. Tube packaging is suitable for manual assembly or lower-volume production, while Tape & Reel format is optimized for automated pick-and-place assembly systems.

Q: Can MBRB2545CTT4G replace the main part in all applications?

A: MBRB2545CTT4G is a parametric equivalent with identical electrical specifications and is suitable for direct substitution in most applications. The part is manufactured by onsemi rather than Vishay, so component qualification requirements should be verified. Operating temperature range extends to 175 °C (versus 150 °C for the main part), providing additional thermal margin. Tape & Reel packaging is optimized for automated assembly.

Q: Why is STPS2545CGY-TR listed as a manufacturer-recommended alternative if it has lower current rating?

A: STPS2545CGY-TR is recommended by STMicroelectronics as a substitute option despite the 12.5 A current rating (versus 15 A for the main part). This part is suitable for applications where the design current requirement does not exceed 12.5 A per diode. The part offers advantages including lower reverse leakage current (125 µA versus 200 µA), AEC-Q101 automotive qualification, and active product status with good inventory availability. Applications requiring the full 15 A rating should select MBRB2545CTT4G or Vishay equivalents instead.

Q: Should SBRB2545CTG be considered for new designs?

A: No. SBRB2545CTG is classified as Obsolete in product status, which presents supply chain risk for ongoing production. Although the part meets electrical specifications and offers improved forward voltage characteristics (620 mV @ 15 A), obsolete status means future availability cannot be guaranteed. New designs should select from Active parts: VS-MBRB2545CTL-M3, VS-MBRB2545CT-M3, MBRB2545CTT4G, or STPS2545CGY-TR.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed (VS-MBRB2545CTL-M3, VS-MBRB2545CT-M3, SBRB2545CTG, STPS2545CGY-TR, and MBRB2545CTT4G) are ROHS3 Compliant with Moisture Sensitivity Level 1 (Unlimited). All parts meet the same environmental and compliance requirements as the main part.

Q: What is the difference in forward voltage between the main part and substitute options?

A: Most substitutes maintain the same forward voltage specification: 820 mV @ 30 A (VS-MBRB2545CTL-M3, VS-MBRB2545CT-M3, MBRB2545CTT4G). STPS2545CGY-TR specifies 840 mV @ 25 A, representing a 20 mV increase at a different test current. SBRB2545CTG offers improved forward voltage at 620 mV @ 15 A, but this part is obsolete. Forward voltage differences should be evaluated against circuit design requirements, particularly in high-current applications where voltage drop affects efficiency.

Q: Which substitute part has the best inventory availability?

A: MBRB2545CTT4G has the highest inventory availability with 53514 Pcs in stock. This onsemi part is supplied in Tape & Reel format and is currently Active in product status. SBRB2545CTG also has high inventory (20200 Pcs), but is classified as Obsolete. For active, long-term availability, MBRB2545CTT4G is the optimal choice.

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