MBRB20100CTT4G Equivalent & Substitute Parts

Part Overview

The MBRB20100CTT4G is a Schottky diode array manufactured by onsemi, configured as 1 pair common cathode with a maximum reverse voltage of 100 V and average rectified current of 10 A per diode. The device is packaged in TO-263-3 D2PAK surface mount format and is classified as Active product status. This part is part of the SWITCHMODE™ series and complies with RoHS3 and REACH requirements.

Equivalent and substitute parts are necessary when the primary part experiences supply constraints, extended lead times, or when design flexibility permits selection from multiple qualified manufacturers offering compatible electrical and mechanical characteristics within the same package family.

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)	10 A
Voltage - Forward (Vf) (Max) @ If	850 mV @ 10 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)
Mounting Type	Surface Mount
Package / Case	TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
Operating Temperature - Junction	-65°C ~ 175°C
RoHS Status	RoHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the MBRB20100CTT4G is determined by strict adherence to the following electrical and mechanical parameters:

Critical Matching Parameters:

Diode Configuration: 1 Pair Common Cathode
Technology: Schottky
Voltage - DC Reverse (Vr) (Max): 100 V
Mounting Type: Surface Mount
Package / Case: TO-263-3, D2PAK (2 Leads + Tab), TO-263AB

Current Rating Consideration: The MBRB20100CTT4G specifies 10 A average rectified current per diode. Substitute parts are grouped into three categories based on current rating: 5 A (reduced current capability), 10 A (direct equivalent), and 20 A (enhanced current capability). Parts with 20 A rating provide higher current capacity and are electrically compatible for applications requiring 10 A or less. Parts with 5 A rating are suitable only for applications requiring 5 A or less.

Forward Voltage Variation: Forward voltage specifications range from 730 mV to 870 mV at their respective test currents. These variations are within acceptable engineering tolerances for Schottky diode rectifier applications.

Temperature Range: Operating temperature ranges vary among substitute parts. The MBRB20100CTT4G operates from -65°C to 175°C. Substitute parts with narrower temperature ranges remain suitable for standard industrial applications.

Compliance and Certifications: All substitute parts listed maintain RoHS3 compliance, MSL 1 rating, and REACH unaffected status, ensuring regulatory compatibility.

Parameter Comparison

Part Number	Manufacturer	Io (A)	Vf (Max) @ If	Vr (Max)	Tj (°C)	Package	RoHS3
MBRB20100CTT4G	onsemi	10	850 mV @ 10 A	100 V	-65 ~ 175	TO-263-3 D2PAK	Yes
MBR20100DC_R2_00001	Panjit International Inc.	20	800 mV @ 10 A	100 V	-50 ~ 150	TO-263-3 D2PAK	Yes
MBRB20100CT-E3/4W	Vishay General Semiconductor	10	800 mV @ 10 A	100 V	-65 ~ 150	TO-263-3 D2PAK	Yes
MBRB20100CT-TP	Micro Commercial Co	20	850 mV @ 10 A	100 V	-55 ~ 150	TO-263-3 D2PAK	Yes
RB088NS100TL	Rohm Semiconductor	5	870 mV @ 5 A	100 V	-40 ~ 150	TO-263-3 D2PAK	Yes
RB228NS100TL	Rohm Semiconductor	15	870 mV @ 5 A	100 V	-40 ~ 150	TO-263-3 D2PAK	Yes
STPS10H100CG-TR	STMicroelectronics	5	730 mV @ 5 A	100 V	-40 ~ 175	TO-263-3 D2PAK	Yes
STPS20H100CG-TR	STMicroelectronics	10	770 mV @ 10 A	100 V	-40 ~ 175	TO-263-3 D2PAK	Yes

Engineering Selection Recommendations

Direct Equivalents (10 A Rating): MBRB20100CT-E3/4W (Vishay) and STPS20H100CG-TR (STMicroelectronics) are direct electrical equivalents with 10 A current rating and 100 V reverse voltage. Both maintain Active product status and full RoHS3 compliance. STPS20H100CG-TR offers superior forward voltage characteristics (770 mV vs. 850 mV) and extended temperature range to 175°C maximum junction temperature.

Enhanced Current Capability (20 A Rating): MBR20100DC_R2_00001 (Panjit) and MBRB20100CT-TP (Micro Commercial Co) provide 20 A current rating while maintaining 100 V reverse voltage specification. These parts are suitable for applications where the MBRB20100CTT4G is specified but higher current margin is required. Both are Active status products with RoHS3 compliance.

Reduced Current Capability (5 A Rating): RB088NS100TL (Rohm) and STPS10H100CG-TR (STMicroelectronics) are rated for 5 A average rectified current. These parts are suitable only for applications requiring 5 A or less and should not be selected as substitutes for the 10 A rated MBRB20100CTT4G in higher current applications.

Intermediate Current Capability (15 A Rating): RB228NS100TL (Rohm) provides 15 A current rating and is suitable for applications requiring current between 10 A and 20 A. This part includes AEC-Q101 automotive qualification and is Active status with RoHS3 compliance.

Packaging and Compliance: All substitute parts are packaged in TO-263-3 D2PAK format with identical pinout and footprint compatibility. All parts maintain MSL 1 rating and REACH unaffected status, ensuring compatibility with standard manufacturing processes.

Frequently Asked Questions (FAQ)

Q: Can STPS20H100CG-TR replace MBRB20100CTT4G directly?

A: Yes. STPS20H100CG-TR is a direct electrical equivalent with identical 10 A current rating, 100 V reverse voltage, and TO-263-3 D2PAK package. Forward voltage is lower (770 mV vs. 850 mV), which is advantageous for efficiency. Both are Active status products with RoHS3 compliance.

Q: Can I use MBR20100DC_R2_00001 (20 A rated) in place of MBRB20100CTT4G (10 A rated)?

A: Yes. The 20 A rated part is electrically compatible and provides higher current capacity. It maintains the same 100 V reverse voltage, TO-263-3 D2PAK package, and regulatory compliance. The higher current rating provides additional design margin for applications requiring 10 A or less.

Q: Why should I not use RB088NS100TL as a substitute?

A: RB088NS100TL is rated for 5 A average rectified current, which is below the 10 A specification of MBRB20100CTT4G. This part is suitable only for applications requiring 5 A or less and would be inadequate for circuits designed for 10 A operation.

Q: Are all substitute parts in the same package?

A: Yes. All substitute parts listed are packaged in TO-263-3 D2PAK (2 Leads + Tab), TO-263AB format with identical pinout and PCB footprint compatibility. No layout modifications are required for substitution.

Q: What is the difference between the Rohm RB088NS100TL and RB228NS100TL?

A: RB088NS100TL is rated for 5 A average rectified current, while RB228NS100TL is rated for 15 A. Both maintain 100 V reverse voltage and TO-263-3 D2PAK packaging. RB228NS100TL includes AEC-Q101 automotive qualification. Selection depends on application current requirements.

Q: Do all substitute parts meet RoHS3 compliance?

A: Yes. All substitute parts listed are RoHS3 compliant with MSL 1 rating and REACH unaffected status, ensuring regulatory compatibility and standard manufacturing process compatibility.

Q: What is the significance of forward voltage differences among substitute parts?

A: Forward voltage variations (730 mV to 870 mV) reflect different semiconductor designs and manufacturing processes. Lower forward voltage reduces power dissipation and improves efficiency. All values are within acceptable engineering tolerances for Schottky rectifier applications. Selection should consider thermal design requirements and efficiency targets.

Q: Can I use MBRB20100CT-TP with different packaging (Tape & Reel) instead of Cut Tape?

A: Yes. MBRB20100CT-TP is available in Tape & Reel packaging and is electrically identical to the Cut Tape version. Packaging format affects supply and handling but does not impact electrical performance or PCB compatibility. Both packaging formats are suitable for automated assembly processes.

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