IRLR7833TRL N-Channel 30V 140A MOSFET DPAK Equivalent & Substitute Parts

Part Overview

The IRLR7833TRL is an N-Channel MOSFET manufactured by Infineon Technologies, designed for high-current switching applications in the 30V class. This device features a continuous drain current rating of 140A at 25°C (Tc) with a maximum power dissipation of 140W, housed in a TO-252AA (DPAK) surface mount package. The part is classified as Obsolete, indicating it is no longer in active production. Identifying equivalent and substitute parts is necessary for design continuity, inventory management, and long-term product support when the original part becomes unavailable or when design requirements necessitate alternative sourcing.

Key Parameters

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

Substitute Part Grouping Explanation

Substitution of the IRLR7833TRL is determined by strict adherence to the following electrical and mechanical parameters:

Critical Matching Parameters:

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

Performance Parameters for Functional Equivalence:

Continuous Drain Current (Id) @ 25°C: Substitute must meet or exceed 140A (Tc)
Rds On (Max): Lower or equal values indicate improved performance
Gate Threshold Voltage (Vgs(th)): Must be within compatible range (2.2V to 2.6V @ 250µA)
Power Dissipation: Must support minimum 140W (Tc)

Compliance Parameters:

RoHS Status: Compliance status is noted but does not restrict substitution
Moisture Sensitivity Level (MSL): All candidates are MSL 1 (Unlimited)
REACH Status: All candidates are REACH Unaffected

The substitute parts listed below meet these criteria with varying degrees of parametric alignment. Parts are grouped by their relationship to the main part: parametric equivalents, manufacturer-recommended alternatives, and functional substitutes.

Parameter Comparison

Part Number	Manufacturer	Vdss (V)	Id @ 25°C (A)	Rds On (mOhm)	Vgs(th) (V)	Power Diss. (W)	Package	Product Status	RoHS Status
IRLR7833TRL	Infineon	30	140 (Tc)	4.5 @ 15A, 10V	2.3 @ 250µA	140 (Tc)	TO-252-3 (DPAK)	Obsolete	RoHS non-compliant
IRLR7833TRPBF	Infineon	30	140 (Tc)	4.5 @ 15A, 10V	2.3 @ 250µA	140 (Tc)	TO-252-3 (DPAK)	Not For New Designs	ROHS3 Compliant
NVD4C05NT4G	onsemi	30	90 (Tc)	4.1 @ 45A, 10V	2.2 @ 250µA	57 (Tc)	TO-252-3 (DPAK)	Active	ROHS3 Compliant
STD150N3LLH6	STMicroelectronics	30	80 (Tc)	2.8 @ 40A, 10V	2.5 @ 250µA	110 (Tc)	TO-252-3 (DPAK)	Obsolete	ROHS3 Compliant
STD100N3LF3	STMicroelectronics	30	80 (Tc)	5.5 @ 40A, 10V	2.5 @ 250µA	110 (Tc)	TO-252-3 (DPAK)	Obsolete	ROHS3 Compliant
AOD514	Alpha & Omega Semiconductor	30	46 (Tc)	6.5 @ 20A, 10V	2.6 @ 250µA	50 (Tc)	TO-252-3 (DPAK)	Not For New Designs	ROHS3 Compliant
STD17NF03LT4	STMicroelectronics	30	17 (Tc)	50 @ 8.5A, 10V	2.2 @ 250µA	30 (Tc)	TO-252-3 (DPAK)	Active	ROHS3 Compliant

Engineering Selection Recommendations

Tier 1: Direct Parametric Equivalent

IRLR7833TRPBF is the direct parametric equivalent to IRLR7833TRL. Both parts share identical electrical specifications: 30V Vdss, 140A continuous drain current, 4.5mOhm Rds On, and 140W power dissipation. The primary difference is packaging format (Cut Tape & Digi-Reel® versus standard packaging) and RoHS compliance status (ROHS3 Compliant versus non-compliant). IRLR7833TRPBF is classified as "Not For New Designs," indicating Infineon has transitioned this product line. This part is suitable for direct replacement in existing designs and is available in higher inventory quantities (17,797 pcs).

Tier 2: High-Current Functional Substitutes

NVD4C05NT4G (onsemi) and STD150N3LLH6 (STMicroelectronics) are functional substitutes with reduced continuous drain current ratings (90A and 80A respectively) compared to the 140A specification of the main part. Both maintain the 30V Vdss rating and TO-252-3 DPAK package. NVD4C05NT4G is classified as Active with AEC-Q101 automotive qualification, providing long-term availability assurance. STD150N3LLH6 features superior Rds On performance (2.8mOhm) but is Obsolete. These parts are suitable for applications where the full 140A rating is not required or where thermal management can accommodate reduced power dissipation.

Tier 3: Lower-Current Alternatives

STD100N3LF3 (STMicroelectronics) and AOD514 (Alpha & Omega Semiconductor) provide 80A and 46A continuous drain current respectively. Both maintain 30V Vdss and DPAK packaging. These parts are suitable only for applications with significantly reduced current requirements. AOD514 exhibits higher Rds On (6.5mOhm), resulting in greater power dissipation per unit current.

Tier 4: Low-Current Substitute

STD17NF03LT4 (STMicroelectronics) is an Active product with 17A continuous drain current and 30W power dissipation. This part is suitable only for low-current switching applications and is not recommended as a substitute for the primary 140A application class.

Compliance Considerations:

All substitute parts except the original IRLR7833TRL are ROHS3 Compliant. For applications requiring RoHS compliance, IRLR7833TRPBF, NVD4C05NT4G, STD150N3LLH6, STD100N3LF3, AOD514, and STD17NF03LT4 are all suitable. All parts maintain MSL 1 (Unlimited) moisture sensitivity and REACH Unaffected status.

Frequently Asked Questions (FAQ)

Q1: Can IRLR7833TRPBF be used as a direct replacement for IRLR7833TRL?

A: Yes. IRLR7833TRPBF is a parametric equivalent with identical electrical specifications (30V, 140A, 4.5mOhm Rds On, 140W). The parts differ only in packaging format and RoHS compliance status. Direct substitution is electrically and mechanically valid.

Q2: What is the minimum continuous drain current required for a valid substitute?

A: A substitute must meet or exceed the application's actual current requirement. The IRLR7833TRL is rated for 140A (Tc). Substitutes with lower ratings (such as NVD4C05NT4G at 90A or STD150N3LLH6 at 80A) are valid only if the application does not require the full 140A capability. Thermal management and circuit design must be re-evaluated for lower-rated parts.

Q3: Are all substitute parts available in the same DPAK package?

A: Yes. All substitute parts listed are housed in TO-252-3 (DPAK) surface mount packages with identical pinout and mechanical dimensions. PCB layout compatibility is maintained across all substitutes.

Q4: Which substitute offers the best long-term availability?

A: NVD4C05NT4G (onsemi) is classified as Active with AEC-Q101 automotive qualification, indicating ongoing production and long-term support. This part is the most suitable for new designs requiring extended product lifecycle assurance.

Q5: Can I use a lower-current substitute if my application only requires 80A?

A: Yes, if your application requires 80A or less. STD150N3LLH6 or STD100N3LF3 (both rated for 80A) are suitable. However, verify that power dissipation, thermal management, and gate drive characteristics are compatible with your circuit design. Lower Rds On values (such as STD150N3LLH6 at 2.8mOhm) may reduce power dissipation and improve efficiency.

Q6: What is the significance of "Not For New Designs" status?

A: This designation indicates the manufacturer has discontinued active development and is transitioning customers to alternative products. Parts with this status remain available from existing inventory but may have limited future availability. For new designs, Active-status parts such as NVD4C05NT4G or STD17NF03LT4 are preferred.

Q7: Are there RoHS compliance differences between substitutes?

A: Yes. The original IRLR7833TRL is RoHS non-compliant. All listed substitutes are ROHS3 Compliant. If your application or market requires RoHS compliance, any of the substitute parts satisfy this requirement.

Q8: How do gate charge differences affect circuit performance?

A: Gate charge (Qg) varies among substitutes: IRLR7833TRL and IRLR7833TRPBF specify 50nC @ 4.5V, while NVD4C05NT4G specifies 14nC @ 4.5V. Lower gate charge reduces gate drive power requirements and may allow faster switching. Verify gate drive circuit compatibility with the selected substitute's Qg specification.

Q9: Can I substitute a part with lower Rds On if it has lower current rating?

A: Yes, if the current rating meets your application requirement. For example, STD150N3LLH6 (80A, 2.8mOhm Rds On) may be preferable to STD100N3LF3 (80A, 5.5mOhm Rds On) due to lower on-resistance and reduced power dissipation, despite both having identical current ratings.

Q10: What thermal considerations apply when substituting with lower-rated parts?

A: Lower-rated parts have reduced power dissipation specifications. Verify that your thermal management design (heatsink, PCB copper area, thermal vias) remains adequate for the substitute's maximum power dissipation. Re-calculate junction temperature using the substitute's power dissipation rating and thermal resistance (Rθ) specifications from the datasheet.

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