IRLL014 N-Channel MOSFET 60V 2.7A SOT-223 Equivalent & Substitute Parts

Part Overview

The IRLL014 is an N-Channel metal oxide semiconductor field-effect transistor (MOSFET) manufactured by Vishay Siliconix, rated for 60V drain-to-source voltage with 2.7A continuous drain current in a surface mount SOT-223 package. This device is classified as obsolete product status. Due to its obsolete classification, equivalent and substitute parts from active manufacturers are necessary to maintain design continuity and ensure long-term component availability for new production and field replacements.

Key Parameters

Parameter	Value	Unit
FET Type	N-Channel	—
Drain to Source Voltage (Vdss)	60	V
Continuous Drain Current (Id) @ 25°C	2.7	A
Rds On (Max) @ Id, Vgs	200 mOhm @ 1.6A, 5V	—
Gate Threshold Voltage Vgs(th) (Max) @ Id	2	V @ 250µA
Gate Charge (Qg) (Max) @ Vgs	8.4	nC @ 5V
Input Capacitance (Ciss) (Max) @ Vds	400	pF @ 25V
Power Dissipation (Max)	2 (Ta), 3.1 (Tc)	W
Operating Temperature Range	-55 to 150	°C (TJ)
Mounting Type	Surface Mount	—
Package	SOT-223 (TO-261-4, TO-261AA)	—

Substitute Part Grouping Explanation

Substitution of the IRLL014 is determined by electrical and mechanical compatibility within the following criteria:

Primary Substitution Parameters:

N-Channel MOSFET technology
Drain-to-source voltage rating of 55V or higher
Continuous drain current rating of 2A or higher
Surface mount SOT-223 package (TO-261-4 or TO-261AA)
Gate threshold voltage compatible with standard logic-level drive circuits
Operating temperature range spanning -55°C to 150°C minimum

Secondary Compatibility Factors:

On-resistance (Rds On) characteristics suitable for the application current range
Gate charge and input capacitance within acceptable switching performance parameters
Power dissipation capability adequate for thermal management requirements

Substitute parts are grouped into two categories: direct electrical equivalents with matching or superior electrical specifications, and functional alternatives that meet the core voltage, current, and package requirements while operating within the same thermal and electrical envelope.

Parameter Comparison

Parameter	IRLL014 (Vishay)	94-3316 (Infineon)	IRLL014NTRPBF (Infineon)	NDT014L (onsemi)	NTF3055-100T1G (onsemi)	STN3NF06L (STMicroelectronics)
FET Type	N-Channel	N-Channel	N-Channel	N-Channel	N-Channel	N-Channel
Vdss (V)	60	55	55	60	60	60
Id @ 25°C (A)	2.7	2	2	2.8	3	4
Rds On (Max) (mOhm)	200 @ 1.6A, 5V	140 @ 2A, 10V	140 @ 2A, 10V	160 @ 3.4A, 10V	110 @ 1.5A, 10V	100 @ 1.5A, 10V
Vgs(th) (Max) @ 250µA (V)	2	2	2	3	4	2.8
Qg (Max) (nC)	8.4 @ 5V	14 @ 10V	14 @ 10V	5 @ 4.5V	22 @ 10V	9 @ 5V
Ciss (Max) (pF)	400 @ 25V	230 @ 25V	230 @ 25V	214 @ 30V	455 @ 25V	340 @ 25V
Power Dissipation (Max) (W)	2 (Ta), 3.1 (Tc)	Not specified	1 (Ta)	3 (Ta)	1.3 (Ta)	3.3 (Tc)
Operating Temperature (°C)	-55 to 150	Not specified	-55 to 150	-65 to 150	-55 to 175	-55 to 150
Package	SOT-223	SOT-223	SOT-223	SOT-223-4	SOT-223	SOT-223
Product Status	Obsolete	Active	Active	Active	Active	Active
RoHS Compliance	Non-compliant	Non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

IRLL014NTRPBF (Infineon Technologies)

This part is the primary recommended substitute. It maintains the same base product number (IRLL014) and is manufactured by Infineon Technologies under the HEXFET® series. The device is in active product status with ROHS3 compliance certification. While the drain-to-source voltage is rated at 55V (5V lower than the original), this remains within acceptable margins for most 60V-rated applications. The part is available in Cut Tape and Digi-Reel® packaging with 50,368 units in stock, ensuring long-term availability. Operating temperature range matches the original specification (-55°C to 150°C).

NDT014L (onsemi)

This substitute provides superior electrical performance with 60V Vdss rating and 2.8A continuous drain current, closely matching the original IRLL014 specifications. The device is in active product status with ROHS3 compliance. The NDT014L is available in SOT-223-4 package configuration with 40,900 units in stock. Operating temperature extends to -65°C minimum, providing enhanced low-temperature performance. Gate charge is reduced to 5 nC, enabling faster switching characteristics.

STN3NF06L (STMicroelectronics)

This substitute offers the highest current rating at 4A continuous drain current with 60V Vdss, providing design margin for thermal and electrical performance. The device is in active product status with ROHS3 compliance under the STripFET™ II series. On-resistance is reduced to 100 mOhm at 1.5A and 10V, improving efficiency. The part is available with 72,446 units in stock. Power dissipation capability is rated at 3.3W (Tc), supporting higher power applications.

NTF3055-100T1G (onsemi)

This substitute provides 60V Vdss and 3A continuous drain current with the lowest on-resistance at 110 mOhm. The device is in active product status with ROHS3 compliance. Operating temperature extends to 175°C maximum, supporting high-temperature applications. Gate charge is 22 nC, which is higher than the original but acceptable for standard switching applications. Inventory availability is 30,700 units.

94-3316 (Infineon Technologies)

This substitute is suitable for applications where the 55V Vdss rating is acceptable. The device is in active product status but does not carry RoHS compliance certification. The 2A continuous drain current is lower than the original specification, limiting its use to lower-current applications. Inventory availability is 847 units, indicating limited stock.

Frequently Asked Questions (FAQ)

Q: Can the IRLL014NTRPBF be used as a direct replacement for the IRLL014?

A: The IRLL014NTRPBF is electrically compatible for most applications. The primary difference is the reduced Vdss rating of 55V compared to the original 60V. For circuits operating below 55V, this substitute functions identically. For circuits requiring the full 60V margin, alternative substitutes such as NDT014L or STN3NF06L are recommended.

Q: What is the significance of the SOT-223 versus SOT-223-4 package designation?

A: Both package designations refer to the same physical surface mount form factor (TO-261-4, TO-261AA). The "-4" designation in SOT-223-4 explicitly indicates a 4-pin configuration. All listed substitutes are mechanically compatible with the original SOT-223 footprint and require no PCB layout modifications.

Q: Does the lower gate charge of NDT014L affect circuit performance?

A: The NDT014L gate charge of 5 nC (compared to 8.4 nC in the original) results in faster switching transitions. This improves efficiency in switching applications and reduces electromagnetic interference. No circuit modifications are required; the lower gate charge is a performance advantage.

Q: Are all substitute parts RoHS compliant?

A: Four of the five substitutes (IRLL014NTRPBF, NDT014L, NTF3055-100T1G, and STN3NF06L) carry ROHS3 compliance certification. The 94-3316 is not RoHS compliant. For applications requiring RoHS compliance, select from the four compliant alternatives.

Q: Which substitute provides the best thermal performance?

A: The STN3NF06L offers the highest power dissipation rating at 3.3W (Tc) and the lowest on-resistance at 100 mOhm, resulting in reduced heat generation. The NTF3055-100T1G extends the operating temperature to 175°C, supporting high-temperature environments. Selection depends on whether thermal dissipation capacity or maximum operating temperature is the primary requirement.

Q: Can substitutes be mixed in the same design revision?

A: All listed substitutes are mechanically and electrically compatible within their specified parameter ranges. However, for production consistency and supply chain management, selecting a single substitute part number is recommended. If multiple substitutes are used, verify that the application circuit operates within the electrical specifications of each part.

Q: What is the impact of different Vgs(th) ratings among substitutes?

A: The gate threshold voltage varies from 2V (IRLL014, 94-3316, IRLL014NTRPBF) to 4V (NTF3055-100T1G). For logic-level gate drive circuits (5V or 10V), all substitutes function correctly. For lower gate drive voltages (3.3V or below), verify that the selected substitute's Vgs(th) is compatible with the available gate drive voltage to ensure reliable switching.

Q: Is inventory availability a factor in substitute selection?

A: Inventory levels vary significantly among substitutes, ranging from 847 units (94-3316) to 72,446 units (STN3NF06L). For long-term production requirements, substitutes with higher inventory levels provide greater supply security. Current inventory status should be verified with component distributors, as levels change continuously.

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