MBR30H100CT Equivalent & Substitute Parts

Part Overview

The MBR30H100CT is a Schottky diode array in a 1 Pair Common Cathode configuration manufactured by Taiwan Semiconductor Corporation. This component is rated for 100 V DC reverse voltage with 30 A average rectified current per diode and operates across a junction temperature range of -55°C to 175°C. The part is mounted through-hole in a TO-220-3 package and maintains Active product status with ROHS3 compliance and unlimited moisture sensitivity level.

Equivalent and substitute parts are necessary when the primary component becomes unavailable, when alternative manufacturers are required for supply chain diversification, or when application requirements permit operation at reduced current ratings while maintaining voltage and package compatibility.

Key Parameters

Parameter	Value	Unit
Diode Configuration	1 Pair Common Cathode	—
Technology	Schottky	—
Voltage - DC Reverse (Vr) (Max)	100	V
Current - Average Rectified (Io) (per Diode)	30	A
Voltage - Forward (Vf) (Max) @ If	980 mV @ 30 A	—
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Current - Reverse Leakage @ Vr	10	µA @ 100 V
Operating Temperature - Junction	-55 to 175	°C
Mounting Type	Through Hole	—
Package / Case	TO-220-3	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the MBR30H100CT is determined by the following critical parameters:

Mandatory Compatibility Parameters:

Diode Configuration: 1 Pair Common Cathode
Technology: Schottky
Voltage - DC Reverse (Vr) (Max): 100 V
Mounting Type: Through Hole
Package / Case: TO-220-3

Current Rating Consideration: The MBR30H100CT operates at 30 A average rectified current per diode. Substitute parts are grouped by current rating capability. Parts with equal or higher current ratings provide direct substitution. Parts with lower current ratings (10 A, 15 A, or 5 A) function as substitutes only when application requirements permit operation at reduced current capacity.

Secondary Parameters Affecting Selection:

Voltage - Forward (Vf) (Max): Varies by part; lower values indicate improved efficiency
Current - Reverse Leakage @ Vr: Varies by part; lower values indicate reduced leakage
Operating Temperature - Junction: Range varies; wider ranges provide greater thermal flexibility
RoHS and REACH Compliance: Regulatory requirements for specific applications

Parameter Comparison

Part Number	Manufacturer	Io (A)	Vf (Max) @ If	Ir @ 100V (µA)	Tj Range (°C)	RoHS Status
MBR30H100CT	Taiwan Semiconductor Corporation	30	980 mV @ 30 A	10	-55 to 175	ROHS3 Compliant
MBR30100CT	Diotec Semiconductor	15	850 mV @ 15 A	50	-50 to 175	Not applicable
MBR10100CT-BP	Micro Commercial Co	10	850 mV @ 5 A	200	-55 to 150	ROHS3 Compliant
MBR10100CT-E3/4W	Vishay General Semiconductor - Diodes Division	5	850 mV @ 5 A	100	-65 to 150	ROHS3 Compliant
MBR10100CT-G1	Diodes Incorporated	5	840 mV @ 5 A	50	-55 to 150	ROHS3 Compliant
MBR10H100CT-E3/45	Vishay General Semiconductor - Diodes Division	5	760 mV @ 5 A	3.5	-65 to 175	ROHS3 Compliant
MBR20100CT-BP	Micro Commercial Co	10	950 mV @ 20 A	150	-55 to 150	ROHS3 Compliant
MBR20100CT-E3/4W	Vishay General Semiconductor - Diodes Division	10	800 mV @ 10 A	100	-65 to 150	ROHS3 Compliant
MBR20100CT-G1	Diodes Incorporated	10	840 mV @ 10 A	50	-55 to 175	ROHS3 Compliant
MBR20100CT-M3/4W	Vishay General Semiconductor - Diodes Division	10	800 mV @ 10 A	100	-65 to 150	ROHS3 Compliant
MBR20H100CT-E3/45	Vishay General Semiconductor - Diodes Division	10	770 mV @ 10 A	4.5	-65 to 150	ROHS3 Compliant

Engineering Selection Recommendations

Direct Substitution (Equal Current Rating): No substitute parts with 30 A current rating are provided in the available list. The MBR30100CT from Diotec Semiconductor operates at 15 A, representing a 50% reduction in current capacity and functions as a partial substitute only when application design permits reduced current handling.

Secondary Substitution (10 A Current Rating): Parts rated at 10 A average rectified current include MBR10100CT-BP, MBR20100CT-BP, MBR20100CT-E3/4W, MBR20100CT-G1, MBR20100CT-M3/4W, and MBR20H100CT-E3/45. These components maintain 100 V reverse voltage rating and TO-220-3 package compatibility. All listed 10 A parts carry ROHS3 compliance. MBR20100CT-G1 and MBR20H100CT-E3/45 support the full -55°C to 175°C junction temperature range of the primary part.

Tertiary Substitution (5 A Current Rating): Parts rated at 5 A average rectified current include MBR10100CT-E3/4W, MBR10100CT-G1, and MBR10H100CT-E3/45. These components are suitable only for applications with significantly reduced current requirements. MBR10H100CT-E3/45 provides the lowest reverse leakage current (3.5 µA) and supports the extended temperature range (-65°C to 175°C).

Compliance Considerations: All substitute parts except MBR30100CT carry ROHS3 compliance certification. MBR30100CT from Diotec Semiconductor lists RoHS status as "Not applicable." Selection should account for regulatory requirements specific to the application and end market.

Product Status: All listed parts maintain Active product status, ensuring continued availability and manufacturing support.

Frequently Asked Questions (FAQ)

Q: Can MBR30100CT directly replace MBR30H100CT? A: MBR30100CT maintains the same 100 V reverse voltage rating, 1 Pair Common Cathode configuration, and TO-220-3 package. However, it operates at 15 A average rectified current compared to 30 A for the MBR30H100CT. Substitution is valid only when application current requirements do not exceed 15 A per diode.

Q: What is the difference between MBR20100CT variants from different manufacturers? A: All MBR20100CT variants operate at 10 A average rectified current and 100 V reverse voltage in TO-220-3 packages. Differences exist in forward voltage drop, reverse leakage current, and operating temperature ranges. MBR20100CT-E3/4W and MBR20100CT-M3/4W from Vishay offer lower forward voltage (800 mV @ 10 A) compared to MBR20100CT-BP (950 mV @ 20 A). MBR20H100CT-E3/45 provides the lowest reverse leakage (4.5 µA @ 100 V).

Q: Are 5 A rated parts suitable substitutes for the 30 A MBR30H100CT? A: Parts rated at 5 A (MBR10100CT-E3/4W, MBR10100CT-G1, MBR10H100CT-E3/45) maintain voltage and package compatibility but operate at one-sixth the current capacity. These parts function as substitutes only in applications where maximum diode current does not exceed 5 A.

Q: Which substitute part offers the lowest forward voltage drop? A: MBR10H100CT-E3/45 and MBR20H100CT-E3/45 from Vishay offer the lowest forward voltage drops at 760 mV @ 5 A and 770 mV @ 10 A respectively. For 10 A operation, MBR20100CT-E3/4W and MBR20100CT-M3/4W both provide 800 mV @ 10 A.

Q: What is the significance of the "H" designation in part numbers like MBR30H100CT? A: The "H" designation indicates enhanced performance characteristics, typically lower reverse leakage current. MBR30H100CT exhibits 10 µA reverse leakage compared to standard variants. MBR10H100CT-E3/45 and MBR20H100CT-E3/45 similarly demonstrate reduced leakage (3.5 µA and 4.5 µA respectively).

Q: Can I use a 10 A rated part in a circuit designed for 30 A operation? A: No. Using a 10 A rated part in a 30 A circuit exceeds the component's current rating and results in excessive heat generation, reduced reliability, and potential component failure. Substitution requires that application current requirements remain within the substitute part's rated capacity.

Q: Which substitute parts support the full temperature range of the MBR30H100CT (-55°C to 175°C)? A: MBR20100CT-G1 and MBR10H100CT-E3/45 support the -55°C to 175°C junction temperature range. MBR10H100CT-E3/45 extends the lower limit to -65°C. Other substitute parts operate within narrower ranges, typically -50°C to 175°C or -65°C to 150°C.

Q: Are all substitute parts RoHS compliant? A: All substitute parts except MBR30100CT carry ROHS3 compliance certification. MBR30100CT from Diotec Semiconductor lists RoHS status as "Not applicable." Regulatory requirements for specific applications should determine whether RoHS compliance is mandatory.

Q: What packaging format is used for these diode arrays? A: All listed parts use TO-220-3 through-hole package configuration. This package provides three leads: two anode connections and one common cathode connection, suitable for through-hole PCB mounting.

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