IRL1404STRLPBF N-Channel 40V 160A MOSFET Equivalent & Substitute Parts

Part Overview

The IRL1404STRLPBF is an N-Channel MOSFET manufactured by Infineon Technologies, rated for 40V drain-to-source voltage and 160A continuous drain current in a D2PAK surface mount package. This device is part of the HEXFET® series and is classified as "Not For New Designs," indicating it has reached end-of-life status. Due to this product status, identification of functionally equivalent substitute parts is necessary for ongoing maintenance, repair, and legacy system support applications.

Key Parameters

Parameter	Value	Unit
Drain-to-Source Voltage (Vdss)	40	V
Continuous Drain Current (Id) @ 25°C	160	A (Tc)
On-Resistance (Rds On Max) @ Id, Vgs	4 mOhm @ 95A, 10V	mOhm
Gate Threshold Voltage (Vgs(th) Max) @ Id	3	V @ 250µA
Gate Charge (Qg Max) @ Vgs	140	nC @ 5V
Maximum Gate Voltage (Vgs Max)	±20	V
Input Capacitance (Ciss Max) @ Vds	6600	pF @ 25V
Power Dissipation (Max)	3.8 (Ta), 200 (Tc)	W
Operating Temperature Range	-55 to 175	°C (TJ)
Package Type	D2PAK (TO-263-3)	Surface Mount
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the IRL1404STRLPBF is determined by strict alignment of the following critical electrical and mechanical parameters:

Primary Substitution Criteria:

Drain-to-Source Voltage (Vdss): Must equal 40V
Package Type: Must be D2PAK (TO-263-3) surface mount
Continuous Drain Current (Id): Must support 160A or higher at 25°C
On-Resistance (Rds On): Must not exceed 4 mOhm at rated conditions
Operating Temperature Range: Must span -55°C to 175°C minimum
Gate Voltage Rating (Vgs Max): Must support ±20V or equivalent

Secondary Compatibility Parameters:

Gate Threshold Voltage (Vgs(th)): Acceptable range 2V to 4V @ specified Id
Gate Charge (Qg): Lower values preferred for faster switching; upper limit 150 nC
Input Capacitance (Ciss): Acceptable range 4640 pF to 7400 pF
RoHS3 Compliance: Required for environmental and regulatory alignment
MSL Rating: Level 1 preferred for unlimited shelf life

Substitute parts are grouped into two categories based on current rating capability:

Category A - Full Current Rating (160A): Parts meeting or exceeding 160A continuous drain current with Rds On ≤ 4 mOhm.

Category B - Reduced Current Rating (75A–100A): Parts with lower current ratings suitable for applications with reduced current demands or as derating alternatives.

Parameter Comparison

Parameter	IRL1404STRLPBF (Main)	STB270N4F3	IXTA160N04T2	PSMN4R5-40BS,118	BUK964R4-40B,118	STB120N4F6	STB120N4LF6
Manufacturer	Infineon	STMicroelectronics	IXYS	Nexperia	Nexperia	STMicroelectronics	STMicroelectronics
Vdss (V)	40	40	40	40	40	40	40
Id @ 25°C (A)	160	160	160	100	75	80	80
Rds On Max (mOhm)	4 @ 95A, 10V	2.5 @ 80A, 10V	5 @ 50A, 10V	4.5 @ 25A, 10V	4 @ 25A, 10V	4 @ 40A, 10V	4 @ 40A, 10V
Vgs(th) Max (V)	3 @ 250µA	4 @ 250µA	4 @ 250µA	4 @ 1mA	2 @ 1mA	4 @ 250µA	3 @ 250µA
Qg Max (nC)	140 @ 5V	150 @ 10V	79 @ 10V	42.3 @ 10V	64 @ 5V	65 @ 10V	80 @ 10V
Vgs Max (V)	±20	±20	±20	±20	±15	±20	±20
Ciss Max (pF)	6600 @ 25V	7400 @ 25V	4640 @ 25V	2683 @ 20V	7124 @ 25V	3850 @ 25V	4300 @ 25V
Power Dissipation Max (W)	200 (Tc)	330 (Tc)	250 (Tc)	148 (Tc)	254 (Tc)	110 (Tc)	110 (Tc)
Operating Temp (°C)	-55 to 175	-55 to 175	-55 to 175	-55 to 175	-55 to 175	-55 to 175	-55 to 175
Package	D2PAK	D2PAK	TO-263AA	D2PAK	D2PAK	TO-263 (D2PAK)	TO-263 (D2PAK)
Product Status	Not For New Designs	Active	Active	Active	Active	Active	Active
RoHS3 Compliant	Yes	Yes	Yes	Yes	Yes	Yes	Yes
AEC-Q101 Qualified	—	Yes	—	—	Yes	Yes	Yes

Engineering Selection Recommendations

Full Current Rating Substitutes (160A Category):

The STB270N4F3 and IXTA160N04T2 are direct current-rated equivalents to the IRL1404STRLPBF, both supporting 160A continuous drain current at 25°C in D2PAK or compatible TO-263 packages. Both devices maintain the 40V Vdss rating and -55°C to 175°C operating temperature range.

STB270N4F3 is manufactured by STMicroelectronics and carries Active product status with AEC-Q101 automotive qualification. It features superior on-resistance performance (2.5 mOhm @ 80A, 10V) and higher power dissipation capability (330W Tc), making it suitable for high-current applications requiring thermal headroom.

IXTA160N04T2 is manufactured by IXYS and carries Active product status. It provides on-resistance of 5 mOhm @ 50A, 10V with 250W power dissipation (Tc). This device features lower input capacitance (4640 pF) compared to the main part, resulting in faster gate switching characteristics.

Reduced Current Rating Substitutes (75A–100A Category):

The PSMN4R5-40BS,118, BUK964R4-40B,118, STB120N4F6, and STB120N4LF6 are suitable for applications where continuous drain current requirements do not exceed 100A. All maintain 40V Vdss and D2PAK packaging compatibility.

PSMN4R5-40BS,118 (Nexperia) supports 100A continuous current with 4.5 mOhm on-resistance and Active product status. It features the lowest input capacitance (2683 pF @ 20V) among all substitutes, enabling fastest switching performance.

BUK964R4-40B,118 (Nexperia) supports 75A continuous current with 4 mOhm on-resistance and carries AEC-Q101 automotive qualification. Gate voltage rating is limited to ±15V, which is acceptable for standard gate drive circuits.

STB120N4F6 and STB120N4LF6 (STMicroelectronics) both support 80A continuous current with 4 mOhm on-resistance and carry AEC-Q101 automotive qualification. Both are Active products with identical power dissipation (110W Tc). STB120N4LF6 features slightly higher gate charge (80 nC vs. 65 nC) and lower gate threshold voltage (3V vs. 4V).

Compliance and Regulatory Alignment:

All substitute parts maintain RoHS3 compliance and MSL Level 1 rating, ensuring environmental and supply chain compatibility with the original IRL1404STRLPBF. Parts carrying AEC-Q101 qualification (STB270N4F3, BUK964R4-40B,118, STB120N4F6, STB120N4LF6) are suitable for automotive and mission-critical applications requiring enhanced reliability documentation.

Frequently Asked Questions (FAQ)

Q: Can STB270N4F3 directly replace IRL1404STRLPBF in all applications?

A: STB270N4F3 meets all primary electrical and mechanical substitution criteria: 40V Vdss, 160A continuous current, D2PAK package, and -55°C to 175°C operating range. It is electrically compatible. However, STB270N4F3 features lower on-resistance (2.5 mOhm vs. 4 mOhm), which may result in reduced power dissipation in the application. Verify that gate drive circuitry is compatible with the specified gate charge and threshold voltage parameters.

Q: What is the difference between STB120N4F6 and STB120N4LF6?

A: Both devices are manufactured by STMicroelectronics with identical current ratings (80A), on-resistance (4 mOhm), and power dissipation (110W Tc). The primary differences are: STB120N4F6 has gate threshold voltage of 4V @ 250µA and gate charge of 65 nC @ 10V; STB120N4LF6 has gate threshold voltage of 3V @ 250µA and gate charge of 80 nC @ 10V. STB120N4LF6 exhibits lower threshold voltage, requiring less gate voltage to achieve full conduction. Selection depends on gate drive circuit design and switching speed requirements.

Q: Why does IXTA160N04T2 have higher on-resistance (5 mOhm) than the main part (4 mOhm)?

A: On-resistance specifications are measured at different drain current conditions. IXTA160N04T2 specifies Rds On @ 50A, 10V, while IRL1404STRLPBF specifies Rds On @ 95A, 10V. At lower drain currents, on-resistance typically increases. Both devices meet the 40V/160A electrical envelope. Verify application current profiles to confirm acceptable performance.

Q: Can I use PSMN4R5-40BS,118 (100A) in place of IRL1404STRLPBF (160A)?

A: PSMN4R5-40BS,118 is suitable only for applications where continuous drain current does not exceed 100A. If the application requires sustained operation above 100A, this substitute is not appropriate. Verify actual application current requirements before selection. For applications with peak currents above 100A but average currents below 100A, thermal analysis is required to confirm safe operation.

Q: Are all substitute parts available in the same packaging?

A: All substitute parts use D2PAK or TO-263 surface mount packages, which are mechanically and electrically compatible. IXTA160N04T2 is specified as TO-263AA, which is functionally equivalent to D2PAK (TO-263-3). PCB footprints and thermal pad designs are compatible across all listed substitutes.

Q: Which substitute part has the fastest switching characteristics?

A: PSMN4R5-40BS,118 features the lowest input capacitance (2683 pF @ 20V), enabling fastest gate charging and switching speed. IXTA160N04T2 also exhibits low input capacitance (4640 pF @ 25V). For applications requiring maximum switching frequency, these two devices are preferred. Gate charge specifications should also be evaluated: PSMN4R5-40BS,118 has 42.3 nC and IXTA160N04T2 has 79 nC @ 10V.

Q: Do all substitutes support ±20V gate voltage?

A: No. BUK964R4-40B,118 supports ±15V maximum gate voltage, while all other substitutes support ±20V. Verify gate drive circuit voltage levels before selection. Standard gate drive circuits typically operate at 10V or 12V, which are within the ±15V limit of BUK964R4-40B,118.

Q: Which substitute parts carry automotive qualification?

A: STB270N4F3, BUK964R4-40B,118, STB120N4F6, and STB120N4LF6 carry AEC-Q101 automotive qualification. These parts are suitable for automotive and mission-critical applications requiring enhanced reliability documentation and traceability.

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