IRL7833STRLPBF N-Channel 30V 150A MOSFET Equivalent & Substitute Parts

Part Overview

The IRL7833STRLPBF is an N-Channel MOSFET manufactured by Infineon Technologies, rated for 30V drain-to-source voltage and 150A continuous drain current in a D2PAK surface mount package. This device belongs to the HEXFET® series and is classified as "Not For New Designs," indicating it has been superseded in Infineon's product portfolio. Due to this status, equivalent and substitute parts from active product lines are necessary for ongoing production, maintenance, and new design implementations requiring similar electrical and mechanical characteristics.

Key Parameters

Parameter	Value	Unit
Drain-to-Source Voltage (Vdss)	30	V
Continuous Drain Current (Id) @ 25°C	150	A (Tc)
On-State Resistance (Rds On Max) @ Id, Vgs	3.8 mOhm @ 38A, 10V	mOhm
Gate Threshold Voltage (Vgs(th) Max) @ Id	2.3	V @ 250µA
Power Dissipation (Max)	140	W (Tc)
Operating Temperature Range	-55 to 175	°C (TJ)
Package Type	D2PAK (TO-263-3)	Surface Mount
Gate Charge (Qg Max) @ Vgs	47	nC @ 4.5V
Input Capacitance (Ciss Max) @ Vds	4170	pF @ 15V

Substitute Part Grouping Explanation

Substitution of the IRL7833STRLPBF is determined by the following critical parameters:

Primary Substitution Criteria:

Drain-to-Source Voltage (Vdss): Must be ≥30V to maintain voltage rating compatibility
Package Type: D2PAK (TO-263-3) or equivalent mechanical footprint for direct PCB replacement
Operating Temperature Range: Must support -55°C to 175°C (TJ) minimum
FET Type: N-Channel MOSFET technology
Mounting Type: Surface Mount

Secondary Compatibility Parameters:

Continuous Drain Current (Id): Substitute parts rated ≥100A are functionally compatible; parts rated <100A represent current-limited alternatives
On-State Resistance (Rds On): Lower values indicate improved performance; values within ±20% of the main part are considered equivalent
Gate Charge (Qg) and Input Capacitance (Ciss): Affect switching speed and drive requirements; variations within ±30% are acceptable for most applications
Power Dissipation: Higher ratings provide thermal margin; lower ratings indicate thermal constraints

The substitute parts listed below meet the primary criteria and are grouped by their current rating capability and product status (Active vs. Obsolete).

Parameter Comparison

Part Number	Manufacturer	Vdss (V)	Id @ 25°C (A)	Rds On Max (mOhm)	Package	Power Dissipation (W)	Product Status
IRL7833STRLPBF	Infineon	30	150	3.8 @ 38A, 10V	D2PAK	140	Not For New Designs
IPB80N03S4L03ATMA1	Infineon	30	80	3.3 @ 80A, 10V	PG-TO263-3-2	94	Obsolete
BUK765R2-40B,118	NXP USA Inc.	40	75	5.2 @ 25A, 10V	D2PAK	203	Active
PSMN3R4-30BL,118	NXP USA Inc.	30	100	3.3 @ 25A, 10V	D2PAK	114	Active
PSMN4R3-30BL,118	Nexperia USA Inc.	30	100	4.1 @ 15A, 10V	D2PAK	103	Active
STD155N3LH6	STMicroelectronics	30	80	3.0 @ 40A, 10V	TO-252 (DPAK)	110	Active

Engineering Selection Recommendations

For Direct Replacement (Same Voltage and Package):

PSMN3R4-30BL,118 and PSMN4R3-30BL,118 are the primary substitutes for the IRL7833STRLPBF. Both are manufactured by Nexperia (formerly NXP), rated for 30V Vdss, packaged in D2PAK, and carry Active product status. PSMN3R4-30BL,118 offers 100A continuous drain current with 3.3 mOhm on-state resistance, while PSMN4R3-30BL,118 provides 100A with 4.1 mOhm on-state resistance. Both comply with ROHS3 and carry unlimited moisture sensitivity level (MSL 1). These parts are suitable for applications where the 150A rating of the original part can be derated to 100A operation.

For Higher Voltage Tolerance:

BUK765R2-40B,118 (NXP USA Inc., TrenchMOS™ series) is rated for 40V Vdss, providing additional voltage margin. It delivers 75A continuous drain current in D2PAK packaging with Active product status and AEC-Q101 automotive qualification. This part is appropriate for applications requiring enhanced voltage headroom or automotive-grade reliability.

For Alternative Package Consideration:

STD155N3LH6 (STMicroelectronics, DeepGATE™/STripFET™ VI series) is rated for 30V Vdss and 80A continuous drain current. It is packaged in TO-252 (DPAK), which differs mechanically from D2PAK but shares similar thermal and electrical characteristics. This part carries Active product status and is suitable when PCB layout permits alternative packaging.

For Obsolete Applications:

IPB80N03S4L03ATMA1 (Infineon, OptiMOS™ series) is rated for 30V Vdss and 80A continuous drain current in PG-TO263-3-2 packaging. Although classified as Obsolete, it remains available in inventory and may be used for legacy system maintenance where design changes are not feasible.

All substitute parts listed comply with ROHS3, REACH Unaffected status, and operate across the -55°C to 175°C temperature range required by the original specification.

Frequently Asked Questions (FAQ)

Q1: Can PSMN3R4-30BL,118 or PSMN4R3-30BL,118 directly replace IRL7833STRLPBF in existing designs?

A: Both parts are mechanically and electrically compatible for direct PCB replacement. They share identical D2PAK packaging, 30V Vdss rating, and -55°C to 175°C operating temperature range. The primary difference is reduced continuous drain current (100A vs. 150A). Direct replacement is valid if the application current requirement does not exceed 100A at 25°C. Thermal analysis should be performed to confirm adequate heat dissipation at the lower power rating (103-114W vs. 140W).

Q2: What is the difference between D2PAK and TO-252 (DPAK) packages?

A: D2PAK (TO-263-3) and TO-252 (DPAK) are distinct surface mount packages with different mechanical footprints and thermal characteristics. D2PAK features a larger tab and different lead spacing compared to DPAK. STD155N3LH6 uses TO-252 (DPAK) packaging and is not a direct PCB replacement without layout modification. However, both packages provide similar thermal performance for this current class.

Q3: Why is BUK765R2-40B,118 rated for 40V instead of 30V?

A: BUK765R2-40B,118 is designed for applications requiring higher voltage tolerance. The 40V Vdss rating provides additional safety margin in circuits with voltage transients or overshoot conditions. This part can be used in 30V applications without functional degradation; the higher voltage rating simply offers enhanced robustness. However, the 75A continuous drain current is lower than the original 150A specification.

Q4: Are all substitute parts RoHS3 compliant?

A: PSMN3R4-30BL,118, PSMN4R3-30BL,118, and STD155N3LH6 are explicitly marked as ROHS3 Compliant. BUK765R2-40B,118 and IPB80N03S4L03ATMA1 do not list RoHS status in the provided data. Verification with the manufacturer is required if RoHS3 compliance is a design requirement.

Q5: What is the significance of "Not For New Designs" status on IRL7833STRLPBF?

A: "Not For New Designs" indicates that Infineon has discontinued active development and marketing of this part. While existing inventory may be available, the manufacturer recommends using alternative parts for new product designs. This status necessitates the use of substitute parts for ongoing production and new applications.

Q6: Can I use STD155N3LH6 if my PCB is designed for D2PAK?

A: No. STD155N3LH6 uses TO-252 (DPAK) packaging, which has a different mechanical footprint than D2PAK. Direct PCB substitution is not possible without layout redesign. If package change is acceptable, STD155N3LH6 is electrically compatible for applications rated ≤80A.

Q7: Which substitute part offers the best on-state resistance performance?

A: STD155N3LH6 offers the lowest on-state resistance at 3.0 mOhm @ 40A, 10V, followed by PSMN3R4-30BL,118 at 3.3 mOhm @ 25A, 10V. Lower on-state resistance reduces conduction losses and heat generation. However, this advantage must be weighed against the reduced current rating (80A and 100A respectively vs. 150A for the original part).

Q8: Is IPB80N03S4L03ATMA1 suitable for new designs despite Obsolete status?

A: IPB80N03S4L03ATMA1 is classified as Obsolete and should not be used for new designs. Although inventory is currently available (16,758 pcs), future availability is not guaranteed. Active alternatives such as PSMN3R4-30BL,118 or PSMN4R3-30BL,118 are recommended for new product development.

Q9: What thermal considerations apply when substituting to lower-rated parts?

A: Substitute parts with lower power dissipation ratings (80-114W vs. 140W) require thermal analysis to ensure adequate heat sinking. Reduced power rating indicates lower thermal capacity. PCB copper area, thermal vias, and external heat sink requirements may need adjustment. Thermal modeling should confirm junction temperature remains within -55°C to 175°C operating range under worst-case conditions.

Q10: Are all substitute parts available in Tape & Reel (TR) packaging?

A: PSMN4R3-30BL,118 is explicitly listed as Tape & Reel (TR) packaging. PSMN3R4-30BL,118 is listed as Bulk packaging. STD155N3LH6 is available in Cut Tape (CT) & Digi-Reel® packaging. BUK765R2-40B,118 is listed as Bulk. Verify packaging format with the supplier to ensure compatibility with automated assembly processes.

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