MBRB2080CT Equivalent & Substitute Parts

Part Overview

The MBRB2080CT is a Schottky diode array manufactured by Vishay General Semiconductor - Diodes Division. This component features a 1 Pair Common Cathode configuration rated for 80 V DC reverse voltage and 10 A average rectified current per diode. The device is housed in a TO-263-3 D2PAK surface mount package with 2 leads plus tab.

The MBRB2080CT is classified as obsolete. Equivalent and substitute parts are necessary to maintain design continuity and ensure component availability for new production runs and field replacements. Active alternatives with identical or superior electrical characteristics are available from both Vishay and STMicroelectronics manufacturers.

Key Parameters

Parameter	Value	Unit
Diode Configuration	1 Pair Common Cathode	—
Technology	Schottky	—
Voltage - DC Reverse (Vr) (Max)	80	V
Current - Average Rectified (Io) (per Diode)	10	A
Voltage - Forward (Vf) (Max) @ If	800 mV @ 10 A	—
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Current - Reverse Leakage @ Vr	100	µA @ 80 V
Operating Temperature - Junction	-65 to 150	°C
Mounting Type	Surface Mount	—
Package / Case	TO-263-3, D2PAK (2 Leads + Tab), TO-263AB	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitute parts for the MBRB2080CT are categorized based on strict electrical and mechanical compatibility criteria. The primary substitution logic is determined by the following parameters:

Critical Matching Parameters:

Diode Configuration: 1 Pair Common Cathode
Technology: Schottky
Current - Average Rectified (Io): 10 A per diode
Voltage - DC Reverse (Vr): 80 V minimum
Package / Case: TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
Mounting Type: Surface Mount

Substitution Categories:

Category 1: Vishay Direct Equivalents (Parametric Equivalents) These parts maintain identical electrical specifications and package configuration. Differences exist only in packaging format (Tape & Reel vs. Tube) and product status (Active vs. Obsolete). All Category 1 substitutes are RoHS3 compliant and represent direct functional replacements.

Category 2: Manufacturer Recommended Alternatives (STMicroelectronics) These parts exceed the minimum electrical requirements of the MBRB2080CT. The STPS20H100CG series provides higher reverse voltage rating (100 V vs. 80 V) and improved reverse leakage characteristics (4.5 µA vs. 100 µA @ rated voltage). These parts are electrically superior and mechanically compatible within the same package footprint.

Parameter Comparison

Parameter	MBRB2080CT	VS-MBRB2080CTL-M3	VS-MBRB2080CTLHM3	VS-MBRB2080CTR-M3	VS-MBRB2080CTRHM3	STPS20H100CG	STPS20H100CG-TR
Manufacturer	Vishay	Vishay	Vishay	Vishay	Vishay	STMicroelectronics	STMicroelectronics
Product Status	Obsolete	Active	Active	Active	Active	Active	Active
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	1 Pair Common Cathode
Technology	Schottky	Schottky	Schottky	Schottky	Schottky	Schottky	Schottky
Voltage - DC Reverse (Vr) (Max)	80 V	80 V	80 V	80 V	80 V	100 V	100 V
Current - Average Rectified (Io) (per Diode)	10 A	10 A	10 A	10 A	10 A	10 A	10 A
Voltage - Forward (Vf) (Max) @ If	800 mV @ 10 A	800 mV @ 10 A	800 mV @ 10 A	800 mV @ 10 A	800 mV @ 10 A	770 mV @ 10 A	770 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)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	100 µA @ 80 V	100 µA @ 80 V	100 µA @ 80 V	100 µA @ 80 V	100 µA @ 80 V	4.5 µA @ 100 V	4.5 µA @ 100 V
Operating Temperature - Junction (Max)	150°C	150°C	150°C	150°C	150°C	175°C	175°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
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	TO-263-3, D2PAK
RoHS Status	RoHS Non-Compliant	RoHS3 Compliant	RoHS3 Compliant	RoHS3 Compliant	RoHS3 Compliant	RoHS3 Compliant	RoHS3 Compliant
Automotive Grade	—	—	Yes (AEC-Q101)	—	Yes (AEC-Q101)	—	—
Packaging Format	Bulk	Tape & Reel (TR)	Tube	Tape & Reel (TR)	Tape & Reel (TR)	Bulk	Cut Tape (CT) & Digi-Reel®

Engineering Selection Recommendations

For Direct Replacement (Identical Electrical Specifications):

Select from the Vishay MBRB2080 series active alternatives when the design requires exact electrical parameter matching and the application does not mandate automotive qualification:

VS-MBRB2080CTL-M3: Recommended for standard industrial applications requiring Tape & Reel packaging. RoHS3 compliant. Active product status ensures long-term availability.
VS-MBRB2080CTR-M3: Functionally identical to VS-MBRB2080CTL-M3 with equivalent Tape & Reel packaging and active status.

For Automotive Applications:

Select automotive-grade alternatives when designs require AEC-Q101 qualification:

VS-MBRB2080CTLHM3: Automotive-qualified variant with Tube packaging. AEC-Q101 certified. RoHS3 compliant.
VS-MBRB2080CTRHM3: Automotive-qualified variant with Tape & Reel packaging. AEC-Q101 certified. RoHS3 compliant.

For Enhanced Performance (Higher Voltage Rating):

Select STMicroelectronics STPS20H100CG series when the application benefits from higher reverse voltage rating and improved reverse leakage characteristics:

STPS20H100CG: Provides 100 V reverse voltage rating (vs. 80 V), lower forward voltage drop (770 mV vs. 800 mV @ 10 A), and significantly reduced reverse leakage (4.5 µA vs. 100 µA). Higher maximum junction temperature (175°C vs. 150°C). RoHS3 compliant. Bulk packaging.
STPS20H100CG-TR: Identical electrical specifications to STPS20H100CG with Cut Tape & Digi-Reel® packaging format.

Compliance Considerations:

All active substitute parts are RoHS3 compliant, addressing environmental and regulatory requirements. The original MBRB2080CT is RoHS non-compliant. Automotive applications must utilize AEC-Q101 qualified variants (VS-MBRB2080CTLHM3 or VS-MBRB2080CTRHM3).

Frequently Asked Questions (FAQ)

Q: Can VS-MBRB2080CTL-M3 be used as a direct replacement for MBRB2080CT?

A: Yes. The VS-MBRB2080CTL-M3 maintains identical electrical specifications including 80 V reverse voltage, 10 A current rating, 800 mV forward voltage drop, and fast recovery characteristics. The primary difference is product status (Active vs. Obsolete) and packaging format (Tape & Reel vs. Bulk). Electrical performance and PCB footprint compatibility are equivalent.

Q: What is the difference between VS-MBRB2080CTL-M3 and VS-MBRB2080CTLHM3?

A: Both parts share identical electrical specifications. The primary distinction is automotive qualification: VS-MBRB2080CTLHM3 carries AEC-Q101 certification and is supplied in Tube packaging, while VS-MBRB2080CTL-M3 is a standard industrial grade part supplied in Tape & Reel packaging. Select the automotive variant for applications requiring AEC-Q101 compliance.

Q: Why would I choose STPS20H100CG over the Vishay MBRB2080 alternatives?

A: The STPS20H100CG offers three technical advantages: higher reverse voltage rating (100 V vs. 80 V), lower forward voltage drop (770 mV vs. 800 mV @ 10 A), and significantly lower reverse leakage current (4.5 µA vs. 100 µA). These characteristics reduce power dissipation and improve circuit efficiency. The higher maximum junction temperature (175°C vs. 150°C) provides additional thermal margin. Select this part when the application can tolerate the higher voltage rating and benefits from improved performance characteristics.

Q: Are all substitute parts compatible with the same PCB footprint?

A: Yes. All substitute parts utilize the TO-263-3 D2PAK package with 2 leads plus tab. PCB footprint, land pattern, and mounting requirements are identical across all listed alternatives. No PCB redesign is required for substitution.

Q: What is the difference between Tape & Reel and Tube packaging?

A: Tape & Reel (TR) packaging is optimized for automated assembly processes and high-volume production. Tube packaging is suitable for manual assembly, lower-volume applications, and component storage. Both formats contain identical components; the difference is in delivery and handling method. Select based on manufacturing process requirements.

Q: Is the MBRB2080CT still available for purchase?

A: The MBRB2080CT is classified as obsolete. While limited inventory may exist from distributors, long-term availability is not guaranteed. Active alternatives from the Vishay MBRB2080 series (VS-MBRB2080CTL-M3, VS-MBRB2080CTR-M3) or STMicroelectronics STPS20H100CG series are recommended for new designs and ongoing production.

Q: Do all substitute parts meet RoHS3 compliance?

A: All active substitute parts listed are RoHS3 compliant. The original MBRB2080CT is RoHS non-compliant. If RoHS3 compliance is a design requirement, select from the active alternatives.

Q: Can STPS20H100CG be used in a circuit designed for 80 V operation?

A: Yes. The STPS20H100CG is rated for 100 V reverse voltage, which exceeds the 80 V requirement. The part operates safely at 80 V with additional voltage margin. The lower forward voltage drop (770 mV vs. 800 mV) and reduced reverse leakage provide performance benefits in 80 V circuits.

Q: What is the significance of the "-M3" and "-HM3" suffixes in Vishay part numbers?

A: The "-M3" suffix indicates standard industrial grade packaging and qualification. The "-HM3" suffix indicates automotive-grade qualification with AEC-Q101 certification. Both variants share identical electrical specifications; the suffix reflects qualification level and intended application category.

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