IRLI520G N-Channel MOSFET 100V 7.2A TO-220-3 Equivalent & Substitute Parts

Part Overview

The IRLI520G is an N-Channel Metal Oxide Semiconductor Field Effect Transistor (MOSFET) manufactured by Vishay Siliconix, rated for 100V drain-to-source voltage and 7.2A continuous drain current in a Through Hole TO-220-3 package. This device is classified as obsolete product status. Identification of equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this component.

Key Parameters

Parameter	Value	Unit
FET Type	N-Channel	—
Technology	MOSFET (Metal Oxide)	—
Drain to Source Voltage (Vdss)	100	V
Current - Continuous Drain (Id) @ 25°C	7.2	A (Tc)
Rds On (Max) @ Id, Vgs	270	mOhm @ 4.3A, 5V
Vgs(th) (Max) @ Id	2	V @ 250µA
Gate Charge (Qg) (Max) @ Vgs	12	nC @ 5V
Vgs (Max)	±10	V
Input Capacitance (Ciss) (Max) @ Vds	490	pF @ 25V
Power Dissipation (Max)	37	W (Tc)
Operating Temperature	-55 to 175	°C (TJ)
Mounting Type	Through Hole	—
Package / Case	TO-220-3 Full Pack, Isolated Tab	—

Substitute Part Grouping Explanation

Substitution of the IRLI520G is determined by electrical and mechanical parameter equivalence within the N-Channel MOSFET category. The critical parameters that establish substitution validity are:

Drain to Source Voltage (Vdss): 100V minimum rating
Continuous Drain Current (Id): 7.2A minimum at 25°C
On-State Resistance (Rds On): 270mOhm maximum at specified conditions
Gate Threshold Voltage (Vgs(th)): 2V maximum at 250µA
Gate Charge (Qg): 12nC maximum at 5V
Input Capacitance (Ciss): 490pF maximum at 25V
Power Dissipation: 37W maximum
Operating Temperature Range: -55°C to 175°C
Package Type: TO-220-3 Through Hole configuration with isolated tab

Substitute parts must maintain identical electrical performance across all specified parameters and support the same mechanical mounting interface to ensure direct functional replacement without circuit redesign.

Parameter Comparison

Parameter	IRLI520G	IRLI520GPBF	Unit
Manufacturer	Vishay Siliconix	Vishay Siliconix	—
FET Type	N-Channel	N-Channel	—
Technology	MOSFET (Metal Oxide)	MOSFET (Metal Oxide)	—
Drain to Source Voltage (Vdss)	100	100	V
Current - Continuous Drain (Id) @ 25°C	7.2	7.2	A (Tc)
Rds On (Max) @ Id, Vgs	270	270	mOhm @ 4.3A, 5V
Vgs(th) (Max) @ Id	2	2	V @ 250µA
Gate Charge (Qg) (Max) @ Vgs	12	12	nC @ 5V
Vgs (Max)	±10	±10	V
Input Capacitance (Ciss) (Max) @ Vds	490	490	pF @ 25V
Power Dissipation (Max)	37	37	W (Tc)
Operating Temperature	-55 to 175	-55 to 175	°C (TJ)
Mounting Type	Through Hole	Through Hole	—
Package / Case	TO-220-3 Full Pack, Isolated Tab	TO-220-3 Full Pack, Isolated Tab	—
Product Status	Obsolete	Active	—
RoHS Status	RoHS non-compliant	ROHS3 Compliant	—

Engineering Selection Recommendations

The IRLI520GPBF serves as the direct functional equivalent to the IRLI520G. Both devices are manufactured by Vishay Siliconix and share identical electrical specifications across all critical parameters including voltage rating, current capacity, on-state resistance, gate charge, and thermal characteristics.

The primary distinction between these parts is product status and regulatory compliance. The IRLI520G is classified as obsolete, whereas the IRLI520GPBF maintains active product status. The IRLI520GPBF additionally carries ROHS3 compliance certification, meeting current environmental and regulatory requirements for new designs and production applications. The IRLI520G is RoHS non-compliant.

For applications requiring continued supply and regulatory alignment with modern manufacturing standards, the IRLI520GPBF is the appropriate selection. Both devices support identical circuit implementations and require no design modifications for direct substitution.

Frequently Asked Questions (FAQ)

Q: Can the IRLI520GPBF directly replace the IRLI520G in existing designs?

A: Yes. The IRLI520GPBF is electrically and mechanically identical to the IRLI520G. All electrical parameters, including voltage rating, current capacity, on-state resistance, gate charge, and thermal specifications, are equivalent. The TO-220-3 package configuration is identical, supporting direct board-level substitution without circuit modification.

Q: What is the difference between IRLI520G and IRLI520GPBF?

A: The devices are electrically identical. The primary differences are product status and compliance certification. The IRLI520G is obsolete and RoHS non-compliant. The IRLI520GPBF is an active product with ROHS3 compliance. The IRLI520GPBF is supplied in Tube packaging, while the IRLI520G packaging specification is not detailed.

Q: Why is the IRLI520G classified as obsolete?

A: Obsolete classification indicates the manufacturer has discontinued active production and support for this part number. The IRLI520GPBF represents the current production equivalent with identical electrical performance.

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

A: No. Both devices specify identical power dissipation (37W), operating temperature range (-55°C to 175°C), and all electrical parameters. Thermal performance is equivalent.

Q: What packaging options are available?

A: The IRLI520GPBF is supplied in Tube packaging. Both devices use the TO-220-3 Full Pack with isolated tab mechanical configuration for Through Hole mounting.

Q: Is the IRLI520GPBF suitable for new product designs?

A: Yes. The IRLI520GPBF is an active product with ROHS3 compliance, making it appropriate for new designs and current manufacturing processes.

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