Equivalent & Substitute Parts for IRL40S212

Part Overview

The IRL40S212 is an N-Channel MOSFET manufactured by Infineon Technologies, rated for 40V drain-to-source voltage with 195A continuous drain current at 25°C. The device is housed in a TO-263-3 (D2PAK) surface mount package and is designed for high-current switching applications. The IRL40S212 is classified as obsolete, necessitating identification of active alternative components that maintain electrical and mechanical compatibility for new designs and production continuity.

Key Parameters

Parameter	Value	Unit
Drain-to-Source Voltage (Vdss)	40	V
Continuous Drain Current (Id) @ 25°C	195	A (Tc)
On-Resistance (Rds On Max) @ 100A, 10V	1.9	mOhm
Gate Threshold Voltage (Vgs(th) Max) @ 150µA	2.4	V
Gate Charge (Qg Max) @ 4.5V	137	nC
Power Dissipation (Max)	231	W (Tc)
Operating Temperature Range	-55 to 175	°C (TJ)
Package Type	TO-263-3, D2PAK	Surface Mount
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the IRL40S212 is determined by strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria:

Drain-to-Source Voltage (Vdss): Must equal 40V
FET Type: Must be N-Channel MOSFET
Package: Must be TO-263-3 (D2PAK) surface mount
Mounting Type: Surface mount only
RoHS Compliance: ROHS3 Compliant
Operating Temperature: -55°C to 175°C (TJ)

Secondary Compatibility Parameters:

Continuous Drain Current (Id): Minimum 195A at 25°C (Tc rating)
On-Resistance (Rds On): Maximum 1.9mOhm @ 100A, 10V
Gate Threshold Voltage (Vgs(th)): Maximum 2.4V @ 150µA
Gate Charge (Qg): Maximum 137nC @ 4.5V
Power Dissipation: Minimum 231W (Tc)

Substitute parts are grouped into two categories: Direct Equivalents (identical electrical specifications and active product status) and Functional Alternatives (meet or exceed all primary criteria with variations in secondary parameters).

Parameter Comparison

Parameter	IRL40S212	IRL40S212ARMA1	NP100N04PUK-E1-AY	SQM120N04-1M7L_GE3	AOB240L	IXTA300N04T2
Manufacturer	Infineon	Infineon	Renesas	Vishay Siliconix	Alpha & Omega	IXYS
Vdss (V)	40	40	40	40	40	40
Id @ 25°C (A, Tc)	195	195	100	120	105	300
Rds On Max @ 10V (mOhm)	1.9 @ 100A	1.9 @ 100A	2.3 @ 50A	1.7 @ 30A	2.6 @ 20A	2.5 @ 500mA
Vgs(th) Max (V)	2.4 @ 150µA	2.4 @ 150µA	Not specified	2.5 @ 250µA	2.2 @ 250µA	4.0 @ 250µA
Qg Max (nC)	137 @ 4.5V	137 @ 4.5V	120 @ 10V	285 @ 10V	72 @ 10V	145 @ 10V
Power Dissipation Max (W, Tc)	231	231	176	375	176	480
Operating Temp Range (°C, TJ)	-55 to 175	-55 to 175	to 175	-55 to 175	-55 to 175	-55 to 175
Package	TO-263-3, D2PAK	TO-263-3, D2PAK	TO-263-4, D2PAK	TO-263, D2PAK	TO-263, D2PAK	TO-263AA, D2PAK
Product Status	Obsolete	Active	Active	Active	Not For New Designs	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Packaging Type	Bulk	Tape & Reel (TR)	Tape & Reel (TR)	Cut Tape (CT)	Tape & Reel (TR)	Tube

Engineering Selection Recommendations

Direct Equivalent (Recommended for Replacement):

The IRL40S212ARMA1 is the direct equivalent substitute for the obsolete IRL40S212. This part maintains identical electrical specifications including 195A continuous drain current, 1.9mOhm on-resistance, and 231W power dissipation. The IRL40S212ARMA1 is manufactured by Infineon Technologies with active product status, ensuring long-term availability and supply chain continuity. The primary difference is packaging format: IRL40S212ARMA1 is supplied in Tape & Reel (TR) configuration, suitable for automated assembly processes. Both parts are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.

Functional Alternatives (For Current-Limited Applications):

When the full 195A continuous drain current is not required, the following active alternatives provide substitution within the 40V class:

NP100N04PUK-E1-AY (Renesas Electronics): Rated for 100A continuous drain current with 2.3mOhm on-resistance. Suitable for applications requiring 50% of the original current capacity. Active product status with ROHS3 compliance. Note: Operating temperature range specified to 175°C (TJ) without lower limit documentation.
SQM120N04-1M7L_GE3 (Vishay Siliconix): Rated for 120A continuous drain current with superior 1.7mOhm on-resistance and 375W power dissipation. Exceeds original on-resistance specification. Active product status with full -55°C to 175°C operating range and ROHS3 compliance.
IXTA300N04T2 (IXYS): Rated for 300A continuous drain current with 480W power dissipation, exceeding original specifications. Suitable for applications requiring higher current capacity. Active product status with ROHS3 compliance. Note: Gate threshold voltage is 4.0V, higher than the original 2.4V specification.

Not Recommended for New Designs:

The AOB240L (Alpha & Omega Semiconductor) carries product status "Not For New Designs," indicating manufacturer discontinuation trajectory. Although electrically compatible at 105A continuous drain current, this part should not be selected for new product development.

Frequently Asked Questions (FAQ)

Q: Can I use IRL40S212ARMA1 as a direct replacement for IRL40S212?

A: Yes. The IRL40S212ARMA1 is the direct equivalent with identical electrical specifications (195A, 1.9mOhm, 231W). The only difference is packaging format (Tape & Reel vs. Bulk). Both are ROHS3 compliant and rated for -55°C to 175°C operation.

Q: What is the minimum continuous drain current required for a substitute part?

A: The substitute must support at least 195A continuous drain current at 25°C (Tc rating) to maintain electrical equivalence. Parts rated below this threshold (such as NP100N04PUK-E1-AY at 100A) are functional alternatives only for current-limited applications.

Q: Are all substitute parts compatible with the same PCB footprint?

A: All listed substitutes use TO-263 (D2PAK) surface mount packages with identical lead spacing and tab configuration. PCB footprints are mechanically compatible. Verify specific package variant (TO-263-3, TO-263-4, TO-263AA) against your PCB design documentation.

Q: Why does IXTA300N04T2 have a higher gate threshold voltage (4.0V vs. 2.4V)?

A: Gate threshold voltage variation is a characteristic difference between manufacturers and device series. IXTA300N04T2 uses IXYS TrenchT2™ technology, which results in higher threshold voltage. This affects gate drive circuit design and switching speed characteristics. Verify gate driver compatibility before selection.

Q: Can I use NP100N04PUK-E1-AY if my application only requires 100A?

A: Yes, if your application requires maximum 100A continuous drain current. The NP100N04PUK-E1-AY meets all primary substitution criteria (40V, N-Channel, TO-263, ROHS3, -55°C to 175°C). On-resistance (2.3mOhm) is slightly higher than the original specification.

Q: What is the difference between Tape & Reel and Cut Tape packaging?

A: Tape & Reel (TR) packaging is supplied on continuous carrier tape in reel format, optimized for high-volume automated assembly. Cut Tape (CT) is supplied in shorter tape segments, suitable for lower-volume or manual assembly processes. Both formats contain identical components; packaging selection depends on assembly equipment and production volume.

Q: Is SQM120N04-1M7L_GE3 a better choice than IRL40S212ARMA1?

A: SQM120N04-1M7L_GE3 offers superior on-resistance (1.7mOhm vs. 1.9mOhm) and higher power dissipation (375W vs. 231W), but is rated for only 120A continuous drain current versus 195A. Selection depends on application current requirements. For full 195A capacity, IRL40S212ARMA1 is the appropriate choice.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 Compliant status. All parts also have MSL 1 (Unlimited) moisture sensitivity rating, indicating no special storage or handling requirements.

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