IRLR7833TRLPBF N-Channel 30V 140A MOSFET Equivalent & Substitute Parts

Part Overview

The IRLR7833TRLPBF is an N-Channel MOSFET manufactured by Infineon Technologies, part of the HEXFET® series. This device features a 30V drain-to-source voltage rating with 140A continuous drain current capability and 140W power dissipation at case temperature. The component is housed in a TO-252AA (DPAK) surface mount package with two leads plus tab configuration.

The IRLR7833TRLPBF carries a "Not For New Designs" product status, indicating it is obsolete or superseded. This status necessitates identification of equivalent and substitute parts for ongoing production support, maintenance applications, and design continuity where existing inventory is depleted.

Key Parameters

Parameter	Value	Unit
Drain-to-Source Voltage (Vdss)	30	V
Continuous Drain Current (Id) @ 25°C	140	A (Tc)
On-State Resistance (Rds On Max) @ 15A, 10V	4.5	mOhm
Gate Threshold Voltage (Vgs(th) Max) @ 250µA	2.3	V
Gate Charge (Qg Max) @ 4.5V	50	nC
Power Dissipation (Max)	140	W (Tc)
Operating Temperature Range	-55 to 175	°C (TJ)
Package Type	TO-252-3 (DPAK)	—
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the IRLR7833TRLPBF is determined by strict alignment of the following electrical and mechanical parameters:

Primary Substitution Criteria:

Drain-to-Source Voltage (Vdss): Must equal 30V
Package Type: Must be TO-252-3 (DPAK) surface mount
FET Type: Must be N-Channel MOSFET
Technology: Must be Metal Oxide (MOSFET)
Operating Temperature Range: Must support -55°C to 175°C minimum
RoHS Compliance: Must be ROHS3 Compliant

Secondary Electrical Parameters for Compatibility Assessment:

Continuous Drain Current (Id): Rated current must meet or exceed application requirements
On-State Resistance (Rds On): Lower values indicate improved performance; higher values acceptable if application current is reduced
Gate Threshold Voltage (Vgs(th)): Must fall within compatible drive voltage ranges
Gate Charge (Qg): Affects switching speed and driver requirements
Power Dissipation: Must support thermal requirements of the application

Substitute parts are grouped into two categories: Parametric Equivalents (matching all key electrical specifications) and Functional Alternatives (meeting voltage and package requirements with different current or power ratings).

Parameter Comparison

Part Number	Manufacturer	Vdss (V)	Id @ 25°C (A)	Rds On Max (mOhm)	Vgs(th) Max (V)	Qg Max (nC)	Power Diss. (W)	Package	Status
IRLR7833TRLPBF	Infineon	30	140 (Tc)	4.5 @ 15A, 10V	2.3 @ 250µA	50 @ 4.5V	140 (Tc)	TO-252-3 (DPAK)	Not For New Designs
IRLR7833TRPBF	Infineon	30	140 (Tc)	4.5 @ 15A, 10V	2.3 @ 250µA	50 @ 4.5V	140 (Tc)	TO-252-3 (DPAK)	Not For New Designs
STD86N3LH5	STMicroelectronics	30	80 (Tc)	5 @ 40A, 10V	2.5 @ 250µA	14 @ 5V	70 (Tc)	TO-252-3 (DPAK)	Active
STD150N3LLH6	STMicroelectronics	30	80 (Tc)	2.8 @ 40A, 10V	2.5 @ 250µA	29 @ 4.5V	110 (Tc)	TO-252-3 (DPAK)	Obsolete
STD100N3LF3	STMicroelectronics	30	80 (Tc)	5.5 @ 40A, 10V	2.5 @ 250µA	27 @ 5V	110 (Tc)	TO-252-3 (DPAK)	Obsolete
NVD4C05NT4G	onsemi	30	90 (Tc)	4.1 @ 45A, 10V	2.2 @ 250µA	14 @ 4.5V	57 (Tc)	TO-252-3 (DPAK)	Active
AOD4132	Alpha & Omega Semiconductor	30	85 (Tc)	4 @ 20A, 10V	3 @ 250µA	76 @ 10V	100 (Tc)	TO-252 (DPAK)	Active
AOD514	Alpha & Omega Semiconductor	30	46 (Tc)	6.5 @ 20A, 10V	2.6 @ 250µA	22.5 @ 10V	50 (Tc)	TO-252 (DPAK)	Not For New Designs
STD17NF03LT4	STMicroelectronics	30	17 (Tc)	50 @ 8.5A, 10V	2.2 @ 250µA	6.5 @ 5V	30 (Tc)	TO-252-3 (DPAK)	Active

Engineering Selection Recommendations

Parametric Equivalent (Direct Replacement):

The IRLR7833TRPBF is a parametric equivalent to the IRLR7833TRLPBF. Both parts share identical electrical specifications: 30V Vdss, 140A continuous drain current, 4.5mOhm Rds On, and 140W power dissipation. The difference lies in packaging format: IRLR7833TRPBF is supplied in Cut Tape (CT) and Digi-Reel® format with higher inventory availability (17,797 pcs vs. 7,457 pcs). Both parts carry "Not For New Designs" status. This substitute is suitable for direct replacement in existing designs and production support.

Active Status Alternatives:

For new designs or long-term production continuity, the following active-status parts are recommended based on application current requirements:

High Current Applications (≥80A):

STD86N3LH5 (STMicroelectronics): 80A continuous current, 5mOhm Rds On, 70W power dissipation. Active product status with AEC-Q101 automotive qualification. Suitable for applications requiring 80A or less.
NVD4C05NT4G (onsemi): 90A continuous current (Tc), 4.1mOhm Rds On, 57W power dissipation. Active product with AEC-Q101 automotive qualification. Provides current capability approaching the original 140A specification.

Medium Current Applications (50-85A):

AOD4132 (Alpha & Omega Semiconductor): 85A continuous current, 4mOhm Rds On, 100W power dissipation. Active product status with high inventory (250,300 pcs). Suitable for applications up to 85A.

Lower Current Applications (<50A):

STD17NF03LT4 (STMicroelectronics): 17A continuous current, 50mOhm Rds On, 30W power dissipation. Active product status. Suitable only for low-current applications.

Obsolete Alternatives (Not Recommended for New Designs):

STD150N3LLH6 and STD100N3LF3 carry obsolete status and should not be selected for new designs despite meeting voltage and package requirements.
AOD514 carries "Not For New Designs" status and provides only 46A continuous current, insufficient for most applications requiring the original 140A specification.

Selection Criteria Summary:

Verify application continuous current requirement does not exceed substitute part rating
Confirm thermal management capability matches substitute power dissipation rating
Prioritize active-status parts (STD86N3LH5, NVD4C05NT4G, AOD4132) for new designs
Verify gate drive voltage compatibility with existing driver circuits
Confirm RoHS3 compliance requirement is met (all listed substitutes are compliant)

Frequently Asked Questions (FAQ)

Q: Can the IRLR7833TRPBF directly replace the IRLR7833TRLPBF?

A: Yes. The IRLR7833TRPBF is a parametric equivalent with identical electrical specifications (30V, 140A, 4.5mOhm Rds On, 140W). The only difference is packaging format (Cut Tape & Digi-Reel® vs. standard reel). Both parts are pin-compatible in TO-252-3 (DPAK) footprints and require no circuit modifications.

Q: Why are some substitute parts rated at 80A or 85A instead of 140A?

A: The IRLR7833TRLPBF's 140A rating represents the maximum continuous drain current under specific thermal conditions (case temperature Tc). Most substitute parts in the TO-252 (DPAK) package are thermally limited to 80-90A continuous current due to package thermal resistance. Selection depends on actual application current requirements. If your application requires only 80A or less, these substitutes are fully compatible.

Q: What is the difference between Tc (case temperature) and Ta (ambient temperature) current ratings?

A: Tc (case temperature) ratings assume active thermal management (heatsinking). Ta (ambient temperature) ratings assume operation in free air without heatsinking. The IRLR7833TRLPBF specifies 140A @ Tc. Substitute parts like AOD4132 specify both: 85A @ Tc and 2.5W @ Ta. For applications using heatsinks, use Tc ratings; for free-air operation, use Ta ratings.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 Compliant status, matching the original IRLR7833TRLPBF. All parts are also REACH Unaffected and classified as EAR99 for export control purposes.

Q: Can I use STD17NF03LT4 as a substitute?

A: Only if your application requires 17A or less continuous current. The STD17NF03LT4 is rated for 17A continuous drain current and 30W power dissipation, significantly lower than the original 140A specification. This part is suitable only for low-current switching applications and is not a general-purpose substitute.

Q: What is the significance of "Not For New Designs" status?

A: This status indicates the part is obsolete or superseded by newer alternatives. Manufacturers no longer recommend using these parts in new product designs. However, they remain available for existing production support and maintenance. For new designs, select active-status alternatives such as STD86N3LH5, NVD4C05NT4G, or AOD4132.

Q: How do I verify thermal compatibility when substituting parts?

A: Compare power dissipation ratings and Rds On values. Lower Rds On values generate less heat at the same current. For example, STD150N3LLH6 has 2.8mOhm Rds On (lower heat generation) versus STD100N3LF3 with 5.5mOhm Rds On (higher heat generation). Verify your heatsink design accommodates the substitute part's power dissipation rating.

Q: Are automotive-qualified parts (AEC-Q101) required for my application?

A: AEC-Q101 qualification is required only for automotive applications. STD86N3LH5 and NVD4C05NT4G carry AEC-Q101 qualification. For non-automotive industrial or consumer applications, AEC-Q101 qualification is not necessary, though it indicates higher reliability standards.

Q: What is the difference between DPAK and TO-252 package designations?

A: DPAK and TO-252 refer to the same package type. TO-252-3 is the formal designation; DPAK is the industry shorthand. All listed substitute parts use this identical package with two leads plus tab configuration, ensuring mechanical compatibility.

Q: Can I substitute parts with different gate charge (Qg) values?

A: Gate charge affects switching speed and driver power requirements. Lower Qg values (faster switching) require less driver current. Higher Qg values (slower switching) require more driver current. Verify your gate driver circuit can supply the required gate current for the substitute part's Qg rating. For example, NVD4C05NT4G has 14nC Qg versus the original 50nC, requiring less driver power.

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