IRF520STRL N-Channel MOSFET Equivalent & Substitute Parts

Part Overview

The IRF520STRL is an N-Channel Metal Oxide Semiconductor Field Effect Transistor (MOSFET) manufactured by Vishay Siliconix, rated for 100V drain-to-source voltage with 9.2A continuous drain current. The device is housed in a Surface Mount TO-263 (D2PAK) package and is designed for general-purpose switching and amplification applications.

The IRF520STRL is classified as an obsolete product. Equivalent substitute parts are available from the same manufacturer with identical electrical and mechanical specifications, offering improved product status and compliance certifications. These alternatives provide direct functional replacement while maintaining full parametric compatibility.

Key Parameters

Parameter	Value	Unit
FET Type	N-Channel	—
Technology	MOSFET (Metal Oxide)	—
Drain to Source Voltage (Vdss)	100	V
Continuous Drain Current (Id) @ 25°C	9.2	A (Tc)
On-State Resistance (Rds On Max) @ 5.5A, 10V	270	mOhm
Gate Threshold Voltage (Vgs(th) Max) @ 250µA	4	V
Gate Charge (Qg Max) @ 10V	16	nC
Maximum Gate Voltage (Vgs Max)	±20	V
Input Capacitance (Ciss Max) @ 25V	360	pF
Power Dissipation (Max)	3.7 (Ta), 60 (Tc)	W
Operating Temperature Range	-55 to 175	°C (TJ)
Mounting Type	Surface Mount	—
Package / Case	TO-263-3, D2PAK (2 Leads + Tab)	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the IRF520STRL is determined by strict equivalence across all electrical and mechanical parameters. The following criteria establish valid substitutes:

Electrical Parameters (Must Match Exactly):

Drain to Source Voltage (Vdss): 100V
Continuous Drain Current (Id) @ 25°C: 9.2A (Tc)
On-State Resistance (Rds On Max): 270mOhm @ 5.5A, 10V
Gate Threshold Voltage (Vgs(th) Max): 4V @ 250µA
Gate Charge (Qg Max): 16nC @ 10V
Maximum Gate Voltage (Vgs Max): ±20V
Input Capacitance (Ciss Max): 360pF @ 25V
Power Dissipation (Max): 3.7W (Ta), 60W (Tc)
Operating Temperature Range: -55°C to 175°C (TJ)

Mechanical Parameters (Must Match Exactly):

FET Type: N-Channel
Technology: MOSFET (Metal Oxide)
Mounting Type: Surface Mount
Package / Case: TO-263-3, D2PAK (2 Leads + Tab)
Moisture Sensitivity Level (MSL): 1 (Unlimited)

All substitute parts listed below meet these criteria and are therefore electrically and mechanically interchangeable with the IRF520STRL.

Parameter Comparison

Parameter	IRF520STRL	IRF520STRR	SIHF520STRL-GE3	SIHF520STRR-GE3
Manufacturer	Vishay Siliconix	Vishay Siliconix	Vishay Siliconix	Vishay Siliconix
FET Type	N-Channel	N-Channel	N-Channel	N-Channel
Technology	MOSFET (Metal Oxide)	MOSFET (Metal Oxide)	MOSFET (Metal Oxide)	MOSFET (Metal Oxide)
Drain to Source Voltage (Vdss)	100V	100V	100V	100V
Continuous Drain Current (Id) @ 25°C	9.2A (Tc)	9.2A (Tc)	9.2A (Tc)	9.2A (Tc)
On-State Resistance (Rds On Max) @ 5.5A, 10V	270mOhm	270mOhm	270mOhm	270mOhm
Gate Threshold Voltage (Vgs(th) Max) @ 250µA	4V	4V	4V	4V
Gate Charge (Qg Max) @ 10V	16nC	16nC	16nC	16nC
Maximum Gate Voltage (Vgs Max)	±20V	±20V	±20V	±20V
Input Capacitance (Ciss Max) @ 25V	360pF	360pF	360pF	360pF
Power Dissipation (Max)	3.7W (Ta), 60W (Tc)	3.7W (Ta), 60W (Tc)	3.7W (Ta), 60W (Tc)	3.7W (Ta), 60W (Tc)
Operating Temperature Range	-55°C to 175°C (TJ)	-55°C to 175°C (TJ)	-55°C to 175°C (TJ)	-55°C to 175°C (TJ)
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	TO-263-3, D2PAK	TO-263-3, D2PAK	TO-263-3, D2PAK	TO-263-3, D2PAK
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Obsolete	Active	Active	Active
RoHS Status	RoHS Non-Compliant	RoHS Non-Compliant	RoHS3 Compliant	RoHS3 Compliant
Packaging Format	Bulk	Tape & Reel (TR)	Tape & Reel (TR)	Tape & Reel (TR)

Engineering Selection Recommendations

IRF520STRR: This part is a parametric equivalent to the IRF520STRL with identical electrical and mechanical specifications. The IRF520STRR maintains the same base product number (IRF520) and differs only in packaging format (Tape & Reel versus bulk). The part is classified as Active, providing improved product lifecycle status compared to the obsolete IRF520STRL. RoHS compliance status remains non-compliant, matching the original part.

SIHF520STRL-GE3 and SIHF520STRR-GE3: These parts are parametric equivalents with identical electrical and mechanical specifications to the IRF520STRL. Both parts use the SIHF520 base product number and are classified as Active products. Critically, both parts are RoHS3 Compliant, providing enhanced environmental and regulatory compliance compared to the original IRF520STRL. The SIHF520STRL-GE3 is supplied in bulk packaging, while the SIHF520STRR-GE3 is supplied in Tape & Reel format.

Selection Basis:

For applications requiring RoHS3 compliance, select SIHF520STRL-GE3 (bulk) or SIHF520STRR-GE3 (Tape & Reel).
For applications with no RoHS compliance requirement and preference for active product status, select IRF520STRR.
All substitutes provide identical electrical performance and are pin-compatible in TO-263 (D2PAK) footprints.

Frequently Asked Questions (FAQ)

Q: Can the IRF520STRR be used as a direct replacement for the IRF520STRL?

A: Yes. The IRF520STRR is a parametric equivalent with identical electrical specifications (100V Vdss, 9.2A Id, 270mOhm Rds On, 16nC Qg) and mechanical specifications (TO-263 D2PAK package, Surface Mount). The only differences are product status (Active versus Obsolete) and packaging format (Tape & Reel versus bulk). Pin configuration and footprint are identical.

Q: What is the difference between IRF520STRR and SIHF520STRR-GE3?

A: Both parts are parametric equivalents with identical electrical and mechanical specifications. The primary difference is RoHS compliance status: IRF520STRR is RoHS Non-Compliant, while SIHF520STRR-GE3 is RoHS3 Compliant. Both use Tape & Reel packaging and are classified as Active products. Selection depends on regulatory requirements for the end application.

Q: Are SIHF520STRL-GE3 and SIHF520STRR-GE3 interchangeable?

A: Yes. Both parts are parametric equivalents with identical electrical and mechanical specifications. The difference is packaging format: SIHF520STRL-GE3 is supplied in bulk, while SIHF520STRR-GE3 is supplied in Tape & Reel (TR) format. Both are RoHS3 Compliant and Active products. Selection depends on procurement and assembly requirements.

Q: Why is the IRF520STRL classified as obsolete?

A: The IRF520STRL is listed as an obsolete product. Equivalent active alternatives are available from the same manufacturer with identical electrical performance and improved product lifecycle status.

Q: Can these parts be used in high-temperature applications?

A: Yes. All substitute parts operate across the same temperature range: -55°C to 175°C (TJ). Thermal management and power dissipation limits (3.7W Ta, 60W Tc) must be observed in circuit design.

Q: What is the significance of the MSL rating?

A: All parts carry Moisture Sensitivity Level (MSL) 1 (Unlimited), indicating unlimited shelf life without moisture control measures. This applies to all substitute parts listed.

Q: Are there any differences in gate charge or input capacitance between the substitutes?

A: No. All substitute parts have identical gate charge (16nC @ 10V) and input capacitance (360pF @ 25V). Switching speed and drive circuit requirements are identical across all parts.

Q: Which substitute should be selected for new designs?

A: For new designs, select SIHF520STRL-GE3 or SIHF520STRR-GE3 based on packaging requirements (bulk or Tape & Reel). Both parts are Active and RoHS3 Compliant, providing optimal product lifecycle and regulatory compliance. The choice between STRL and STRR variants depends on assembly process requirements.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message