MBR10100CT Equivalent & Substitute Parts

Part Overview

The MBR10100CT is a Schottky diode array in a 1 Pair Common Cathode configuration rated for 100 V DC reverse voltage and 5 A average rectified current per diode. Manufactured by Diodes Incorporated, this component features fast recovery characteristics (≤500 ns) and is qualified to AEC-Q101 automotive standards. The part is currently listed as obsolete, necessitating identification of equivalent and substitute components for ongoing design support and procurement.

Key Parameters

Parameter	Value
Diode Configuration	1 Pair Common Cathode
Technology	Schottky
Voltage - DC Reverse (Vr) (Max)	100 V
Current - Average Rectified (Io) (per Diode)	5 A
Voltage - Forward (Vf) (Max) @ If	840 mV @ 5 A
Speed	Fast Recovery ≤500 ns, >200 mA (Io)
Current - Reverse Leakage @ Vr	50 µA @ 100 V
Operating Temperature - Junction	-55°C ~ 175°C
Mounting Type	Through Hole
Package / Case	TO-220-3
Grade	Automotive
Qualification	AEC-Q101
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the MBR10100CT is determined by the following critical parameters:

Electrical Compatibility Requirements:

Voltage - DC Reverse (Vr) (Max): Must equal or exceed 100 V
Current - Average Rectified (Io) (per Diode): Must equal or exceed 5 A
Diode Configuration: Must be 1 Pair Common Cathode
Technology: Schottky or equivalent fast-recovery rectifier technology
Speed: Fast Recovery ≤500 ns, >200 mA (Io)

Mechanical Compatibility Requirements:

Mounting Type: Through Hole
Package / Case: TO-220-3 or compatible TO-220 variant

Compliance Requirements:

Grade: Automotive
Qualification: AEC-Q101
RoHS Status: ROHS3 Compliant

Substitute parts are grouped into two categories: direct replacements (identical electrical and mechanical specifications) and functional equivalents (meeting or exceeding all electrical parameters within the same package family).

Parameter Comparison

Parameter	MBR10100CT (Main)	MBR10100CT-G1	MBR20100CT-G1	SBR10100CT	MBR10100CTP
Manufacturer	Diodes Incorporated	Diodes Incorporated	Diodes Incorporated	Diodes Incorporated	Diodes Incorporated
Product Status	Obsolete	Active	Active	Active	Obsolete
Diode Configuration	1 Pair Common Cathode	1 Pair Common Cathode	1 Pair Common Cathode	1 Pair Common Cathode	1 Pair Common Cathode
Technology	Schottky	Schottky	Schottky	Super Barrier	Schottky
Voltage - DC Reverse (Vr) (Max)	100 V	100 V	100 V	100 V	100 V
Current - Average Rectified (Io) (per Diode)	5 A	5 A	10 A	5 A	5 A
Voltage - Forward (Vf) (Max) @ If	840 mV @ 5 A	840 mV @ 5 A	840 mV @ 10 A	800 mV @ 5 A	850 mV @ 5 A
Speed	Fast Recovery ≤500 ns, >200 mA (Io)	Fast Recovery ≤500 ns, >200 mA (Io)	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	50 µA @ 100 V	50 µA @ 100 V	50 µA @ 100 V	100 µA @ 100 V	100 µA @ 100 V
Operating Temperature - Junction	-55°C ~ 175°C	-55°C ~ 150°C	-55°C ~ 175°C	-65°C ~ 150°C	-65°C ~ 175°C
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	TO-220-3	TO-220-3	TO-220-3	TO-220-3	TO-220-3 Isolated Tab
Grade	Automotive	Automotive	Automotive	Not specified	Not specified
Qualification	AEC-Q101	AEC-Q101	AEC-Q101	Not specified	Not specified
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Primary Recommendation: MBR10100CT-G1

The MBR10100CT-G1 is the manufacturer-recommended direct replacement for the obsolete MBR10100CT. This part maintains identical electrical specifications (100 V, 5 A, Schottky technology) and package configuration (TO-220-3). The MBR10100CT-G1 is currently in active production status with AEC-Q101 qualification and automotive-grade designation, ensuring long-term availability and compliance continuity. The operating temperature range is -55°C to 150°C, which is narrower than the original part's -55°C to 175°C range; this difference must be evaluated against specific application requirements.

Secondary Recommendation: MBR20100CT-G1

The MBR20100CT-G1 provides a functional upgrade path with doubled current capacity (10 A per diode versus 5 A). This part maintains the same 100 V reverse voltage rating, Schottky technology, fast recovery characteristics, and TO-220-3 package. The MBR20100CT-G1 is in active production with AEC-Q101 qualification and automotive-grade designation. This substitute is suitable for applications where current headroom is beneficial or where design margins require increased current handling capability. The operating temperature range extends to 175°C, matching the original specification.

Alternative Consideration: SBR10100CT

The SBR10100CT employs Super Barrier technology rather than standard Schottky, offering a lower forward voltage drop (800 mV @ 5 A versus 840 mV @ 5 A). This part is in active production and ROHS3 compliant. However, the SBR10100CT lacks specified automotive grade and AEC-Q101 qualification, making it unsuitable for applications requiring automotive-grade components. The operating temperature range is -65°C to 150°C.

Obsolete Alternative: MBR10100CTP

The MBR10100CTP features an isolated tab package variant (ITO-220S) and maintains identical electrical specifications to the main part. However, this component is also listed as obsolete. The isolated tab configuration may be required for specific thermal management or isolation requirements in legacy designs. The operating temperature range extends to 175°C.

Frequently Asked Questions (FAQ)

Q: Can MBR10100CT-G1 be used as a direct replacement for MBR10100CT?

A: Yes. The MBR10100CT-G1 is the manufacturer-recommended replacement with identical electrical specifications (100 V, 5 A, Schottky) and package (TO-220-3). Both parts maintain AEC-Q101 qualification and automotive-grade designation. The primary difference is the operating temperature range: MBR10100CT-G1 operates to 150°C versus the original 175°C. Verify that your application does not require operation above 150°C junction temperature.

Q: What is the difference between MBR10100CT-G1 and MBR20100CT-G1?

A: The MBR20100CT-G1 has double the current rating (10 A per diode) compared to MBR10100CT-G1 (5 A per diode). Both maintain 100 V reverse voltage, Schottky technology, and TO-220-3 packaging. The MBR20100CT-G1 is suitable for applications requiring higher current capacity or design margin. The MBR20100CT-G1 operating temperature extends to 175°C, matching the original MBR10100CT specification.

Q: Is SBR10100CT a suitable replacement for MBR10100CT?

A: The SBR10100CT meets the electrical requirements (100 V, 5 A, fast recovery) and uses the same TO-220-3 package. However, it lacks specified automotive grade and AEC-Q101 qualification. Use SBR10100CT only in non-automotive applications or where automotive qualification is not required. The Super Barrier technology provides lower forward voltage (800 mV versus 840 mV), which may reduce power dissipation.

Q: What does the "-G1" suffix indicate in MBR10100CT-G1?

A: The "-G1" suffix indicates a specific manufacturing variant or generation designation from Diodes Incorporated. This variant is in active production status and carries current AEC-Q101 qualification and automotive-grade designation, distinguishing it from the obsolete original MBR10100CT.

Q: Can MBR10100CTP be used instead of MBR10100CT?

A: The MBR10100CTP has identical electrical specifications but features an isolated tab package (ITO-220S) instead of standard TO-220-3. The isolated tab provides electrical isolation between the tab and the case, which may be required for specific thermal management or isolation requirements. However, MBR10100CTP is also obsolete. Use this part only if the isolated tab configuration is functionally necessary for your design.

Q: What are the key parameters that determine substitution compatibility?

A: Substitution compatibility is determined by: (1) Voltage - DC Reverse (Vr) rating of 100 V or higher, (2) Current - Average Rectified (Io) rating of 5 A or higher per diode, (3) Diode configuration of 1 Pair Common Cathode, (4) Schottky or equivalent fast-recovery technology with speed ≤500 ns, (5) Through Hole mounting type, (6) TO-220-3 or compatible TO-220 package, and (7) for automotive applications, AEC-Q101 qualification and automotive-grade designation.

Q: Does forward voltage difference between parts affect circuit operation?

A: Forward voltage differences exist between substitute parts: MBR10100CT and MBR10100CT-G1 specify 840 mV @ 5 A, while SBR10100CT specifies 800 mV @ 5 A. These differences affect power dissipation and voltage drop across the diode. In precision rectification circuits or applications with tight voltage budgets, verify that the substitute part's forward voltage is acceptable. Lower forward voltage (SBR10100CT) reduces power dissipation; higher forward voltage requires verification of circuit tolerance.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts (MBR10100CT-G1, MBR20100CT-G1, SBR10100CT, and MBR10100CTP) are ROHS3 compliant, matching the original MBR10100CT specification.

Q: What is the significance of reverse leakage current differences?

A: The main part MBR10100CT specifies 50 µA @ 100 V reverse leakage, while MBR20100CT-G1 also specifies 50 µA @ 100 V. However, SBR10100CT and MBR10100CTP specify 100 µA @ 100 V. Higher reverse leakage increases standby current and power dissipation. In applications sensitive to leakage current (such as precision analog circuits or low-power standby modes), the lower leakage of MBR10100CT-G1 or MBR20100CT-G1 is preferable.

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