IRLU3714 Equivalent & Substitute Parts

Part Overview

The IRLU3714 is an N-Channel MOSFET manufactured by Infineon Technologies, rated for 20V drain-to-source voltage with 36A continuous drain current at 25°C. This device is packaged in TO-251-3 (IPak) configuration and is designed for through-hole mounting applications requiring moderate power dissipation up to 47W at the case temperature.

The IRLU3714 is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or maintenance of systems utilizing this component.

Key Parameters

Parameter	Value	Unit
FET Type	N-Channel	—
Drain to Source Voltage (Vdss)	20	V
Current - Continuous Drain (Id) @ 25°C	36	A (Tc)
Rds On (Max) @ Id, Vgs	20	mOhm @ 18A, 10V
Vgs(th) (Max) @ Id	3	V @ 250µA
Gate Charge (Qg) (Max) @ Vgs	9.7	nC @ 4.5V
Power Dissipation (Max)	47	W (Tc)
Operating Temperature Range	-55 to 175	°C (TJ)
Package / Case	TO-251-3 Short Leads, IPak, TO-251AA	—
Mounting Type	Through Hole	—

Substitute Part Grouping Explanation

Substitution of the IRLU3714 is determined by strict equivalence across the following electrical and mechanical parameters:

Electrical Equivalence Criteria:

FET Type: N-Channel
Drain to Source Voltage (Vdss): 20V
Continuous Drain Current (Id) @ 25°C: 36A (Tc)
On-State Resistance (Rds On): 20 mOhm @ 18A, 10V
Gate Threshold Voltage (Vgs(th)): 3V @ 250µA
Gate Charge (Qg): 9.7 nC @ 4.5V
Power Dissipation: 47W (Tc)
Operating Temperature Range: -55°C to 175°C (TJ)

Mechanical Equivalence Criteria:

Package Type: TO-251-3 Short Leads / IPak / TO-251AA
Mounting Type: Through Hole

The IRLU3714TR from Vishay Siliconix meets all specified electrical and mechanical parameters and is classified as an active product, providing supply continuity for the obsolete IRLU3714.

Parameter Comparison

Parameter	IRLU3714 (Infineon)	IRLU3714TR (Vishay Siliconix)	Match
FET Type	N-Channel	N-Channel	✓
Drain to Source Voltage (Vdss)	20V	20V	✓
Current - Continuous Drain (Id) @ 25°C	36A (Tc)	36A (Tc)	✓
Rds On (Max) @ Id, Vgs	20 mOhm @ 18A, 10V	20 mOhm @ 18A, 10V	✓
Vgs(th) (Max) @ Id	3V @ 250µA	3V @ 250µA	✓
Gate Charge (Qg) (Max) @ Vgs	9.7 nC @ 4.5V	9.7 nC @ 4.5V	✓
Vgs (Max)	±20V	±20V	✓
Input Capacitance (Ciss) (Max) @ Vds	670 pF @ 10V	670 pF @ 10V	✓
Power Dissipation (Max)	47W (Tc)	47W (Tc)	✓
Operating Temperature Range	-55°C to 175°C (TJ)	-55°C to 175°C (TJ)	✓
Package / Case	TO-251-3 Short Leads, IPak, TO-251AA	TO-251-3 Short Leads, IPak, TO-251AA	✓
Mounting Type	Through Hole	Through Hole	✓
Product Status	Obsolete	Active	—

Engineering Selection Recommendations

IRLU3714TR (Vishay Siliconix) is the direct parametric equivalent for the obsolete IRLU3714. All electrical specifications, mechanical dimensions, and thermal characteristics are identical. The IRLU3714TR is currently in active production status, ensuring availability for new designs and replacement applications.

Both parts carry identical RoHS non-compliance status and are unaffected by REACH regulations. Moisture sensitivity level is 1 (Unlimited) for both devices. The ECCN and HTSUS classifications are identical.

Selection of the IRLU3714TR eliminates obsolescence risk while maintaining full electrical and mechanical compatibility with existing circuit designs and PCB layouts designed for the IRLU3714.

Frequently Asked Questions (FAQ)

Q: Can the IRLU3714TR be used as a direct replacement for the IRLU3714?

A: Yes. The IRLU3714TR meets all electrical and mechanical specifications of the IRLU3714. Pin configuration, package dimensions, and electrical performance are identical. No circuit modifications are required.

Q: What is the primary reason to substitute the IRLU3714?

A: The IRLU3714 is classified as obsolete. The IRLU3714TR provides equivalent functionality with active product status, ensuring long-term supply availability.

Q: Are there any differences in thermal performance between these parts?

A: No. Both devices have identical power dissipation ratings of 47W (Tc) and the same operating temperature range of -55°C to 175°C (TJ).

Q: Do these parts have the same package footprint?

A: Yes. Both the IRLU3714 and IRLU3714TR use the TO-251-3 Short Leads (IPak / TO-251AA) package with through-hole mounting. PCB layouts are fully compatible.

Q: Are there compliance or certification differences?

A: Both parts share identical RoHS non-compliance status, REACH unaffected classification, and ECCN/HTSUS codes. No compliance changes occur with substitution.

Q: What is the gate charge specification, and why is it important?

A: Gate charge (Qg) is 9.7 nC @ 4.5V for both parts. This parameter determines gate drive circuit requirements and switching speed. Identical specifications ensure driver circuit compatibility.

Q: Can I use the IRLU3714TR in high-temperature applications?

A: Yes. The operating temperature range extends to 175°C (TJ), supporting high-temperature industrial and automotive applications within the specified limits.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message