MBR30L120CTHC0G Equivalent & Substitute Parts

Part Overview

The MBR30L120CTHC0G is a Schottky diode array manufactured by Taiwan Semiconductor Corporation, configured as 1 pair common cathode with 120 V reverse voltage rating and 30 A average rectified current per diode. The device is packaged in TO-220-3 through-hole format and maintains active product status with AEC-Q101 automotive qualification. Substitute parts are identified based on matching diode configuration, voltage rating, package type, and thermal characteristics to ensure functional compatibility in circuit applications.

Key Parameters

Parameter	Value
Diode Configuration	1 Pair Common Cathode
Technology	Schottky
Voltage - DC Reverse (Vr) (Max)	120 V
Current - Average Rectified (Io) (per Diode)	30 A
Voltage - Forward (Vf) (Max) @ If	950 mV @ 30 A
Speed	Fast Recovery ≤ 500 ns, > 200 mA (Io)
Operating Temperature - Junction	-55°C ~ 150°C
Mounting Type	Through Hole
Package / Case	TO-220-3
Grade	Automotive
Qualification	AEC-Q101
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the MBR30L120CTHC0G are classified based on the following substitution criteria:

Primary Substitution Criteria:

Diode Configuration: 1 Pair Common Cathode
Technology: Schottky
Voltage - DC Reverse (Vr) (Max): 120 V
Mounting Type: Through Hole
Package / Case: TO-220-3

Current Rating Considerations: Substitute parts are grouped by average rectified current capacity. The MBR30L120CTHC0G operates at 30 A per diode. Substitutes with lower current ratings (10 A, 15 A, 20 A) are suitable for applications requiring reduced current handling. Substitutes with matching 30 A ratings provide direct functional equivalence.

Parametric Equivalent: V60120C-E3/4W is classified as a parametric equivalent, matching all critical electrical parameters including 120 V reverse voltage, 30 A current rating, 950 mV forward voltage at 30 A, and TO-220-3 package.

Direct Substitutes: V40120C-M3/4W and V40M120C-M3/4W are direct substitutes with 20 A current ratings, suitable for applications where 30 A capacity is not required.

Partial Substitutes: V30M120C-M3/4W (15 A), V20120C-E3/4W (10 A), and V20M120M-E3/4W (10 A) are partial substitutes for lower-current applications.

Obsolete Substitute: NTSB40120CT-1G is listed as obsolete and should not be selected for new designs.

Parameter Comparison

Part Number	Manufacturer	Vr (Max)	Io (per Diode)	Vf (Max) @ If	Package	Temp Range	Status	AEC-Q101
MBR30L120CTHC0G	Taiwan Semiconductor	120 V	30 A	950 mV @ 30 A	TO-220-3	-55°C ~ 150°C	Active	Yes
V60120C-E3/4W	Vishay	120 V	30 A	950 mV @ 30 A	TO-220-3	-40°C ~ 150°C	Active	No
V40M120C-M3/4W	Vishay	120 V	20 A	890 mV @ 20 A	TO-220-3	-40°C ~ 175°C	Active	Yes
V40120C-M3/4W	Vishay	120 V	20 A	880 mV @ 20 A	TO-220-3	-40°C ~ 150°C	Active	Yes
V30M120C-M3/4W	Vishay	120 V	15 A	980 mV @ 15 A	TO-220-3	-40°C ~ 175°C	Active	Yes
STPS30L120CT	STMicroelectronics	120 V	15 A	880 mV @ 15 A	TO-220-3	-55°C ~ 150°C	Active	No
V20120C-E3/4W	Vishay	120 V	10 A	900 mV @ 10 A	TO-220-3	-40°C ~ 150°C	Active	No
V20M120M-E3/4W	Vishay	120 V	10 A	1.01 V @ 10 A	TO-220-3	-55°C ~ 175°C	Active	No
NTSB40120CT-1G	onsemi	120 V	20 A	910 mV @ 20 A	TO-262-3	-40°C ~ 150°C	Obsolete	No

Engineering Selection Recommendations

For Direct Replacement (30 A Applications): V60120C-E3/4W is the parametric equivalent substitute. Both parts share identical electrical specifications: 120 V reverse voltage, 30 A current rating, and 950 mV forward voltage at 30 A. Both are packaged in TO-220-3 and maintain active product status. The MBR30L120CTHC0G includes AEC-Q101 automotive qualification; V60120C-E3/4W does not carry this certification. Selection depends on automotive qualification requirements.

For Automotive Applications: MBR30L120CTHC0G, V40M120C-M3/4W, V40120C-M3/4W, and V30M120C-M3/4W carry AEC-Q101 qualification. Among these, V40M120C-M3/4W and V40120C-M3/4W support 20 A operation with extended temperature range (-40°C ~ 175°C for V40M120C-M3/4W). V30M120C-M3/4W supports 15 A with -40°C ~ 175°C range.

For Extended Temperature Range: V20M120M-E3/4W (-55°C ~ 175°C) and V40M120C-M3/4W (-40°C ~ 175°C) provide extended upper temperature limits. V20M120M-E3/4W operates at 10 A; V40M120C-M3/4W operates at 20 A.

For Lower Current Applications: When circuit design permits reduced current handling, V40120C-M3/4W or V40M120C-M3/4W (20 A) provide suitable alternatives with AEC-Q101 qualification. V30M120C-M3/4W (15 A) and V20120C-E3/4W or V20M120M-E3/4W (10 A) are available for further reduced current requirements.

Parts to Avoid: NTSB40120CT-1G is obsolete and should not be selected for new designs. Additionally, this part uses TO-262-3 package, which differs from the TO-220-3 standard for this product category.

Frequently Asked Questions (FAQ)

Q: Can V60120C-E3/4W directly replace MBR30L120CTHC0G? A: V60120C-E3/4W matches all electrical parameters: 120 V reverse voltage, 30 A current rating, 950 mV forward voltage at 30 A, and TO-220-3 package. Direct functional replacement is supported. However, MBR30L120CTHC0G carries AEC-Q101 automotive qualification while V60120C-E3/4W does not. Automotive applications should verify qualification requirements.

Q: What is the difference between V40120C-M3/4W and V40M120C-M3/4W? A: Both parts operate at 120 V reverse voltage and 20 A current rating in TO-220-3 package with AEC-Q101 qualification. V40120C-M3/4W operates from -40°C to 150°C. V40M120C-M3/4W extends the upper temperature limit to 175°C. Forward voltage characteristics are similar: 880 mV @ 20 A for V40120C-M3/4W and 890 mV @ 20 A for V40M120C-M3/4W.

Q: Can I use a 20 A rated part in place of the 30 A MBR30L120CTHC0G? A: Substitution depends on circuit current requirements. If the application draws maximum 20 A per diode, V40120C-M3/4W or V40M120C-M3/4W are suitable. If the application requires 30 A capacity, lower-rated parts will not provide adequate current handling and may cause thermal stress or failure.

Q: Why does NTSB40120CT-1G appear in the substitute list if it is obsolete? A: NTSB40120CT-1G is listed for reference only to document historical alternatives. This part is obsolete and should not be selected for new designs or production applications. Active alternatives are available from multiple manufacturers.

Q: What is the significance of the TO-220-3 package specification? A: TO-220-3 is the through-hole package format for this diode array category. All recommended substitutes maintain this package type to ensure mechanical and thermal compatibility with existing PCB layouts and thermal management solutions. NTSB40120CT-1G uses TO-262-3 package and requires different PCB footprint design.

Q: Are all substitute parts RoHS3 compliant? A: Yes. All parts listed, including MBR30L120CTHC0G and all substitutes, maintain ROHS3 compliance status. All parts are also REACH unaffected and classified under ECCN EAR99.

Q: Which substitute offers the best thermal performance? A: V40M120C-M3/4W and V20M120M-E3/4W provide extended upper junction temperature limits to 175°C, compared to 150°C for MBR30L120CTHC0G. V40M120C-M3/4W combines this extended range with 20 A current capacity and AEC-Q101 qualification, making it suitable for high-temperature automotive applications.

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