MBR20H100CT Equivalent & Substitute Parts

Part Overview

The MBR20H100CT is a Schottky diode array in a 1 Pair Common Cathode configuration manufactured by Taiwan Semiconductor Corporation. This through-hole component operates at 100 V DC reverse voltage with 20 A average rectified current per diode and is housed in a TO-220-3 package. The part is Active status and RoHS3 compliant. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and design alternatives while maintaining electrical and mechanical compatibility within specified parameter ranges.

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)	20	A
Voltage - Forward (Vf) (Max) @ If	950 mV @ 20 A	—
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Current - Reverse Leakage @ Vr	5	µA @ 100 V
Operating Temperature - Junction	-55 to 175	°C
Mounting Type	Through Hole	—
Package / Case	TO-220-3	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the MBR20H100CT is determined by strict equivalence and compatibility across the following critical parameters:

Primary Equivalence Criteria:

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

Secondary Compatibility Criteria:

Current - Average Rectified (Io) (per Diode): Equal to or greater than 20 A
Speed: Fast Recovery ≤ 500ns, > 200mA (Io)
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)

Substitute parts are classified into two categories:

Parametric Equivalent: Parts meeting all primary and secondary criteria with identical or superior electrical performance at rated conditions.

Similar Parts: Parts meeting primary equivalence criteria but with reduced current ratings (10 A or 5 A per diode) or variations in forward voltage, reverse leakage, or operating temperature range. These parts are suitable for applications where the full 20 A rating is not required.

Parameter Comparison

Part Number	Manufacturer	Io (per Diode)	Vf (Max) @ If	Reverse Leakage @ 100V	Tj (Operating)	Package	RoHS3
MBR20H100CT	Taiwan Semiconductor Corporation	20 A	950 mV @ 20 A	5 µA	-55 to 175°C	TO-220-3	Yes
MBR20100CT	Good-Ark Semiconductor	10 A	—	200 nA	—	TO-220-3 Full Pack, Isolated Tab	Yes
MBR10100CT-BP	Micro Commercial Co	10 A	850 mV @ 5 A	200 µA	-55 to 150°C	TO-220-3	Yes
MBR10100CT-E3/4W	Vishay General Semiconductor - Diodes Division	5 A	850 mV @ 5 A	100 µA	-65 to 150°C	TO-220-3	Yes
MBR10100CT-G1	Diodes Incorporated	5 A	840 mV @ 5 A	50 µA	-55 to 150°C	TO-220-3	Yes
MBR10H100CT-E3/45	Vishay General Semiconductor - Diodes Division	5 A	760 mV @ 5 A	3.5 µA	-65 to 175°C	TO-220-3	Yes
MBR20100CT-BP	Micro Commercial Co	10 A	950 mV @ 20 A	150 µA	-55 to 150°C	TO-220-3	Yes
MBR20100CT-E3/4W	Vishay General Semiconductor - Diodes Division	10 A	800 mV @ 10 A	100 µA	-65 to 150°C	TO-220-3	Yes
MBR20100CT-G1	Diodes Incorporated	10 A	840 mV @ 10 A	50 µA	-55 to 175°C	TO-220-3	Yes
MBR20100CT-M3/4W	Vishay General Semiconductor - Diodes Division	10 A	800 mV @ 10 A	100 µA	-65 to 150°C	TO-220-3	Yes
MBR20H100CT-E3/45	Vishay General Semiconductor - Diodes Division	10 A	770 mV @ 10 A	4.5 µA	-65 to 150°C	TO-220-3	Yes

Engineering Selection Recommendations

Full Current Rating Substitutes (20 A per Diode):

The MBR20H100CT operates at 20 A average rectified current per diode. No substitute parts in the provided list maintain this full 20 A rating. Applications requiring the complete 20 A specification must use the original MBR20H100CT part number.

Reduced Current Rating Substitutes (10 A per Diode):

For applications where 10 A per diode is acceptable, the following parts are suitable substitutes:

MBR20100CT-BP (Micro Commercial Co): Matches forward voltage specification (950 mV @ 20 A) and maintains Fast Recovery speed. Operating temperature range is -55 to 150°C. RoHS3 compliant.
MBR20100CT-E3/4W (Vishay General Semiconductor - Diodes Division): TMBS® series with reduced forward voltage (800 mV @ 10 A) and extended lower operating temperature (-65°C). RoHS3 compliant.
MBR20100CT-G1 (Diodes Incorporated): AEC-Q101 automotive qualified with -55 to 175°C operating range matching the original part. RoHS3 compliant.
MBR20100CT-M3/4W (Vishay General Semiconductor - Diodes Division): TMBS® series with reduced forward voltage (800 mV @ 10 A) and extended lower operating temperature (-65°C). RoHS3 compliant.
MBR20H100CT-E3/45 (Vishay General Semiconductor - Diodes Division): Lowest reverse leakage (4.5 µA) and reduced forward voltage (770 mV @ 10 A). Operating range -65 to 150°C. RoHS3 compliant.

Reduced Current Rating Substitutes (5 A per Diode):

For applications where 5 A per diode is acceptable:

MBR10100CT-E3/4W (Vishay General Semiconductor - Diodes Division): TMBS® series with extended lower operating temperature (-65°C). RoHS3 compliant.
MBR10100CT-G1 (Diodes Incorporated): AEC-Q101 automotive qualified. RoHS3 compliant.
MBR10H100CT-E3/45 (Vishay General Semiconductor - Diodes Division): Lowest reverse leakage (3.5 µA) and reduced forward voltage (760 mV @ 5 A). Operating range -65 to 175°C. RoHS3 compliant.

All substitute parts are Active status and RoHS3 compliant with MSL 1 (Unlimited) moisture sensitivity.

Frequently Asked Questions (FAQ)

Q: Can MBR20100CT-BP be used as a direct replacement for MBR20H100CT?

A: MBR20100CT-BP is a suitable substitute for applications where 10 A per diode current rating is acceptable. The part shares the same 100 V reverse voltage, TO-220-3 package, Schottky technology, and 1 Pair Common Cathode configuration. Forward voltage specification (950 mV @ 20 A) matches the original part. Operating temperature range is -55 to 150°C compared to -55 to 175°C for the original. Applications requiring the full 20 A rating cannot use this substitute.

Q: What is the difference between TO-220-3 and TO-220-3 Full Pack, Isolated Tab packages?

A: Both are through-hole packages with three leads suitable for the MBR20H100CT application. The TO-220-3 Full Pack, Isolated Tab variant (used by Good-Ark Semiconductor MBR20100CT) provides electrical isolation of the tab from the cathode connection, which may be beneficial in certain thermal management configurations. Standard TO-220-3 packages have the tab connected to one of the leads. Mechanical compatibility is maintained for board-level mounting.

Q: Why do some substitute parts have lower current ratings (10 A or 5 A) than the original 20 A?

A: The substitute parts listed represent available alternatives from multiple manufacturers. Parts with 10 A or 5 A ratings are suitable only for applications where the circuit design does not require the full 20 A capability. Current rating selection must be based on actual circuit requirements. The 100 V reverse voltage and Schottky technology remain constant across all listed parts.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed in this reference are RoHS3 compliant with MSL 1 (Unlimited) moisture sensitivity level, matching the original MBR20H100CT specification.

Q: What is the significance of the TMBS® designation on some Vishay parts?

A: TMBS® is a Vishay product series designation for Schottky diodes. Parts bearing this designation (MBR10100CT-E3/4W, MBR20100CT-E3/4W, MBR20100CT-M3/4W) are manufactured to Vishay specifications within this series. The designation does not alter electrical compatibility or substitution suitability; it identifies the manufacturing series and quality level.

Q: Which substitute part has the lowest forward voltage drop?

A: MBR10H100CT-E3/45 has the lowest forward voltage at 760 mV @ 5 A. For 10 A operation, MBR20100CT-E3/4W and MBR20100CT-M3/4W both specify 800 mV @ 10 A. Forward voltage selection depends on thermal management requirements and circuit efficiency considerations.

Q: Can I use a 5 A rated part in place of the 20 A MBR20H100CT?

A: A 5 A rated part can be used only if the circuit design does not exceed 5 A per diode current. The 100 V reverse voltage, Schottky technology, and TO-220-3 package remain compatible. Current rating must be verified against actual circuit requirements before substitution.

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

A: MBR20100CT-G1 (Diodes Incorporated) carries AEC-Q101 automotive qualification and maintains the full -55 to 175°C operating temperature range of the original part. Other variants may have different temperature ranges or lack automotive qualification. Selection depends on application requirements and qualification standards.

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