IRF1404L N-Channel MOSFET 40V 162A Equivalent & Substitute Parts

Part Overview

The IRF1404L is an N-Channel MOSFET manufactured by Infineon Technologies, rated for 40V drain-to-source voltage with 162A continuous drain current in the TO-262 package. This device is classified as obsolete, which necessitates identification of equivalent and substitute components for ongoing design support and procurement.

The IRF1404L belongs to the HEXFET® series and is designed for through-hole applications requiring high current switching capability. Due to its obsolete status, alternative parts with matching or superior electrical characteristics are required for new designs and legacy system maintenance.

Key Parameters

Parameter	Value	Unit
Drain-to-Source Voltage (Vdss)	40	V
Continuous Drain Current (Id) @ 25°C	162	A (Tc)
On-State Resistance (Rds On) @ 95A, 10V	4	mOhm
Gate Threshold Voltage (Vgs(th)) @ 250µA	4	V
Gate Charge (Qg) @ 10V	200	nC
Maximum Gate Voltage (Vgs)	±20	V
Input Capacitance (Ciss) @ 25V	7360	pF
Power Dissipation (Ta)	3.8	W
Power Dissipation (Tc)	200	W
Operating Temperature Range	-55 to 175	°C (TJ)
Package Type	TO-262-3	Through Hole
Technology	MOSFET (Metal Oxide)	N-Channel

Substitute Part Grouping Explanation

Substitution of the IRF1404L is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Criteria:

Drain-to-Source Voltage (Vdss): 40V minimum
Continuous Drain Current (Id): 162A or greater
On-State Resistance (Rds On): 4mOhm or lower at specified conditions
Gate Threshold Voltage (Vgs(th)): 4V maximum
Maximum Gate Voltage (Vgs): ±20V minimum
Operating Temperature Range: -55°C to 175°C minimum

Mechanical Equivalence Criteria:

Package Type: TO-262-3 Long Leads or I2PAK compatible footprint
Mounting Type: Through Hole
Pin Configuration: Compatible with TO-262 pinout

Compliance Criteria:

RoHS Status: Compliance preferred for new designs
Moisture Sensitivity Level (MSL): 1 (Unlimited)
REACH Status: REACH Unaffected

Substitute parts are grouped into two categories: parametric equivalents (identical electrical specifications) and manufacturer-recommended alternatives (superior performance characteristics within the same voltage and current class).

Parameter Comparison

Parameter	IRF1404L	IRF1404LPBF	STI270N4F3	Unit
Manufacturer	Infineon Technologies	Infineon Technologies	STMicroelectronics	—
Product Status	Obsolete	Active	Obsolete	—
Drain-to-Source Voltage (Vdss)	40	40	40	V
Continuous Drain Current (Id) @ 25°C	162	162	160	A (Tc)
On-State Resistance (Rds On)	4 @ 95A, 10V	4 @ 95A, 10V	2.6 @ 80A, 10V	mOhm
Gate Threshold Voltage (Vgs(th))	4 @ 250µA	4 @ 250µA	4 @ 250µA	V
Gate Charge (Qg) @ 10V	200	200	150	nC
Maximum Gate Voltage (Vgs)	±20	±20	±20	V
Input Capacitance (Ciss) @ 25V	7360	7360	7400	pF
Power Dissipation (Tc)	200	200	330	W
Operating Temperature Range	-55 to 175	-55 to 175	-55 to 175	°C (TJ)
Package Type	TO-262-3	TO-262-3	I2PAK	—
RoHS Status	Non-compliant	ROHS3 Compliant	ROHS3 Compliant	—
Packaging	Bulk	Tube	Tube	—

Engineering Selection Recommendations

IRF1404LPBF (Infineon Technologies) — Primary Substitute

The IRF1404LPBF is the direct parametric equivalent of the IRF1404L. It maintains identical electrical specifications across all critical parameters: 40V Vdss, 162A continuous drain current, 4mOhm Rds On, and ±20V gate voltage rating. The primary distinction is product status: IRF1404LPBF is active and in production, whereas IRF1404L is obsolete.

IRF1404LPBF is RoHS3 compliant, meeting modern regulatory requirements for new designs. It is supplied in tube packaging and maintains the same TO-262-3 through-hole footprint. This part is the recommended direct replacement for all applications currently using IRF1404L.

STI270N4F3 (STMicroelectronics) — Alternative Substitute

The STI270N4F3 is a manufacturer-recommended alternative from STMicroelectronics' STripFET™ III series. It meets the core voltage and current requirements (40V Vdss, 160A continuous drain current) with superior on-state resistance performance (2.6mOhm at 80A versus 4mOhm at 95A) and lower gate charge (150nC versus 200nC).

The STI270N4F3 offers enhanced thermal performance with 330W power dissipation at Tc compared to 200W for the IRF1404L. It is qualified to AEC-Q101 automotive standards and is RoHS3 compliant. The package is I2PAK, which shares the same TO-262-3 long-lead footprint and is mechanically compatible with TO-262 PCB layouts.

Both substitute parts are suitable for direct replacement based on electrical and mechanical compatibility. Selection between IRF1404LPBF and STI270N4F3 depends on design requirements for on-state resistance, gate charge, and thermal performance.

Frequently Asked Questions (FAQ)

Q: Can IRF1404LPBF be used as a direct replacement for IRF1404L?

A: Yes. IRF1404LPBF is a parametric equivalent with identical electrical specifications. Both devices have 40V Vdss, 162A continuous drain current, 4mOhm Rds On, and ±20V gate voltage rating. The primary difference is that IRF1404LPBF is active in production while IRF1404L is obsolete. Both use the same TO-262-3 through-hole package.

Q: What are the advantages of STI270N4F3 over IRF1404LPBF?

A: STI270N4F3 provides lower on-state resistance (2.6mOhm at 80A versus 4mOhm at 95A), lower gate charge (150nC versus 200nC), and higher power dissipation capability (330W at Tc versus 200W). These characteristics reduce switching losses and improve thermal performance. However, continuous drain current is slightly lower at 160A versus 162A.

Q: Are the packages physically compatible?

A: Yes. Both IRF1404LPBF (TO-262-3) and STI270N4F3 (I2PAK) use the same TO-262-3 long-lead through-hole footprint and are mechanically compatible with existing PCB layouts designed for IRF1404L.

Q: What is the difference between IRF1404L and IRF1404LPBF packaging?

A: IRF1404L is supplied in bulk packaging, while IRF1404LPBF is supplied in tube packaging. Both devices use identical TO-262-3 through-hole packages. The packaging difference affects handling and storage but does not impact electrical or mechanical compatibility.

Q: Is RoHS compliance a factor in selecting a substitute?

A: IRF1404L is RoHS non-compliant, while both IRF1404LPBF and STI270N4F3 are RoHS3 compliant. For new designs and applications subject to RoHS regulations, IRF1404LPBF or STI270N4F3 are required. For legacy systems where RoHS compliance is not mandated, IRF1404L may remain acceptable if inventory is available.

Q: Can STI270N4F3 be used in applications requiring exactly 162A continuous drain current?

A: STI270N4F3 is rated for 160A continuous drain current, which is 2A lower than IRF1404L. For applications requiring the full 162A specification, IRF1404LPBF is the appropriate choice. For applications with 160A or lower current requirements, STI270N4F3 is suitable.

Q: What is the operating temperature range for all three devices?

A: All three devices (IRF1404L, IRF1404LPBF, and STI270N4F3) operate across the same temperature range: -55°C to 175°C (TJ).

Q: Are there any gate voltage differences between the substitutes?

A: No. All three devices have identical gate specifications: 4V gate threshold voltage at 250µA and ±20V maximum gate voltage rating.

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