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Home > Products > Discrete Semiconductor Products > Transistors > FETs, MOSFETs > FETs, MOSFETs

Vishay Siliconix IRL520STRL

Name: IRL520STRL
Brand: Vishay Siliconix
SKU: IRL520STRL
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: IRL520STRL

Manufacturer:: Vishay Siliconix

Category:: FETs, MOSFETs

Package:: TO-263-3, D2PAK (2 Leads + Tab), TO-263AB

Datasheet:: IRL520STRL.pdf

Description:: MOSFET N-CH 100V 9.2A D2PAK

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Product details

Overview

IRL520STRL from Vishay Siliconix is a logic-level N-channel Power MOSFET in D2PAK (TO-263) package, rated for 100 V V_DS, 9.2 A continuous drain current at T_C = 25 °C, and R_DS(on) = 0.27 Ω at V_GS = 5 V. It supports repetitive avalanche operation, features dynamic dV/dt rating up to 5.5 V/ns, and operates up to 175 °C junction temperature - ideal for high-current DC-DC converter primary-side switching.

For engineers reviewing the IRL520STRL datasheet, IRL520STRL pinout, IRL520STRL application, or IRL520STRL equivalent, key selection criteria include logic-level gate drive compatibility (V_GS(th) = 1.0–2.0 V), low on-resistance at 4–5 V drive, avalanche ruggedness (E_AS = 170 mJ), thermal performance (R_thJC = 2.5 °C/W), and surface-mount D2PAK power handling.

Technical Context

This N-channel enhancement-mode MOSFET uses planar silicon technology optimized for fast switching and robust unclamped inductive switching. Its gate threshold voltage range (1.0–2.0 V) ensures reliable turn-on with 3.3 V or 5 V logic controllers, while the specified Q_g = 12 nC and Q_gd = 7.1 nC support efficient gate driving in hard-switched topologies.

The device integrates a body diode with t_rr = 130–190 ns and Q_rr = 0.83–1.0 µC, enabling moderate-frequency synchronous rectification or freewheeling in buck converters. Its R_thJC = 2.5 °C/W and P_D = 60 W (T_C = 25 °C) confirm suitability for thermally constrained PCB-mounted power stages.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	100 V - supports input rails up to 48 V nominal systems with margin for transients
R_DS(on) @ V_GS = 5 V	0.27 Ω - enables <1.5 W conduction loss at 9.2 A, critical for efficiency in 12–48 V DC-DC stages
Q_g	12 nC - determines gate driver current requirement (~1.2 A peak for 10 ns rise time)
I_D (continuous, T_C = 25 °C)	9.2 A - defines maximum steady-state current with heatsink or copper pour cooling
E_AS	170 mJ - quantifies single-pulse avalanche energy tolerance during inductive turn-off
T_J max	175 °C - allows operation in high-ambient industrial environments without derating below 100 °C ambient
dV/dt rating	5.5 V/ns - ensures immunity to parasitic turn-on in high-di/dt motor or SMPS applications

Pinout & Package

D2PAK (TO-263) surface-mount package with exposed drain tab for thermal and electrical connection to PCB copper plane. Standard 3-pin configuration: Gate (G), Drain (D), Source (S). Tab is electrically connected to Drain.

Pin/Terminal	Circuit Role	Design Meaning
G	Gate control terminal	Receives logic-level voltage (≥4 V) to fully enhance channel; requires low-impedance drive due to Q_g = 12 nC
D	Drain (connected to tab)	Main high-side current path; tab must be soldered to large copper area for thermal dissipation and low-inductance return
S	Source (common reference)	Return path for load current; referenced to gate drive ground; forms source node for bootstrap or isolated gate drivers

Key Features

Feature	Design Value
Logic-level gate drive	V_GS(th) = 1.0–2.0 V enables direct interface with 3.3 V/5 V microcontrollers and PWM ICs without level-shifting
Repetitive avalanche rated	EAR = 6.0 mJ confirms reliability under repeated inductive switching stress, reducing need for snubbers
R_DS(on) specified at V_GS = 4 V and 5 V	0.38 Ω @ 4 V ensures usable conduction even with marginal gate drive, improving system robustness
175 °C operating temperature	Supports sealed or high-ambient enclosures (e.g., automotive under-hood, industrial PLCs) without forced air
Dynamic dV/dt rating	5.5 V/ns immunity prevents false turn-on in high-speed half-bridge or LLC resonant circuits

Applications

Motor Drive Half-Bridge	DC-DC Converter High-Side Switch
Use Scenario: 24 V brushed DC motor control in industrial actuators with PWM frequencies up to 20 kHz. IC Role / Device Role / Timing Role: High-side N-channel switch in H-bridge, driven by gate driver with bootstrap supply. Use Value: Low R_DS(on) reduces I²R losses during 9.2 A stall current; avalanche rating handles back-EMF spikes without external clamping.	Use Scenario: Primary-side switch in non-isolated buck converter delivering 5–12 V at 5–8 A from 24–48 V input. IC Role / Device Role / Timing Role: Synchronous rectifier or high-side switch controlled by PWM controller with 5 V gate output. Use Value: Logic-level drive eliminates need for dedicated level shifter; 0.27 Ω R_DS(on) maintains >92% efficiency at full load.
LED Driver Constant-Current Switch	Power Supply OR-ing Circuit
Use Scenario: High-brightness LED string switching in outdoor signage with ambient temperatures up to 70 °C. IC Role / Device Role / Timing Role: Series pass element modulated at 1–5 kHz to regulate LED current. Use Value: 175 °C T_J rating ensures long life under sustained thermal stress; low Q_g enables clean PWM edges without ringing.	Use Scenario: Redundant 12 V power rail combining from dual PSUs in telecom shelf systems. IC Role / Device Role / Timing Role: Low-loss OR-ing FET replacing Schottky diodes to minimize forward drop and heat generation. Use Value: R_DS(on) = 0.27 Ω yields <300 mV drop at 1 A - cutting conduction loss by >70% vs. 0.45 V Schottky diode.

Motor Drive Half-Bridge

DC-DC Converter High-Side Switch

Use Scenario: 24 V brushed DC motor control in industrial actuators with PWM frequencies up to 20 kHz.

IC Role / Device Role / Timing Role: High-side N-channel switch in H-bridge, driven by gate driver with bootstrap supply.

Use Value: Low R_DS(on) reduces I²R losses during 9.2 A stall current; avalanche rating handles back-EMF spikes without external clamping.

Use Scenario: Primary-side switch in non-isolated buck converter delivering 5–12 V at 5–8 A from 24–48 V input.

IC Role / Device Role / Timing Role: Synchronous rectifier or high-side switch controlled by PWM controller with 5 V gate output.

Use Value: Logic-level drive eliminates need for dedicated level shifter; 0.27 Ω R_DS(on) maintains >92% efficiency at full load.

LED Driver Constant-Current Switch

Power Supply OR-ing Circuit

Use Scenario: High-brightness LED string switching in outdoor signage with ambient temperatures up to 70 °C.

IC Role / Device Role / Timing Role: Series pass element modulated at 1–5 kHz to regulate LED current.

Use Value: 175 °C T_J rating ensures long life under sustained thermal stress; low Q_g enables clean PWM edges without ringing.

Use Scenario: Redundant 12 V power rail combining from dual PSUs in telecom shelf systems.

IC Role / Device Role / Timing Role: Low-loss OR-ing FET replacing Schottky diodes to minimize forward drop and heat generation.

Use Value: R_DS(on) = 0.27 Ω yields <300 mV drop at 1 A - cutting conduction loss by >70% vs. 0.45 V Schottky diode.

Equivalent & Alternatives

The following parts are listed as comparable options for similar N-channel power MOSFET applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
IRF520NPBF	V_GS(th) = 2.0–4.0 V; not logic-level; R_DS(on) = 0.27 Ω only at V_GS = 10 V	Requires 10 V gate drive; unsuitable for 3.3 V/5 V MCU direct drive	Select IRL520STRL when gate voltage is limited to ≤5 V; choose IRF520NPBF only if 10 V drive is available and cost is priority
STP55NF06L	V_DS = 60 V; R_DS(on) = 0.022 Ω @ V_GS = 5 V; higher current (55 A)	Limited to ≤60 V systems; over-specified voltage rating for 48 V applications	Prefer IRL520STRL for 100 V capability and proven avalanche ruggedness in 48 V industrial designs

Compared with IRF520NPBF and STP55NF06L, the IRL520STRL uniquely balances 100 V rating, true logic-level drive (1.0–2.0 V V_GS(th)), and validated repetitive avalanche performance - making it optimal for space-constrained, thermally demanding 24–48 V power switches where gate drive voltage and reliability under transient stress are critical.

Availability

IRL520STRL is available at Aetrix Electronics and suitable for motor drives, DC-DC converters, LED drivers, and redundant power OR-ing circuits requiring stable component supply across industrial production cycles.

Supply support for IRL520STRL includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Vishay Siliconix is a global leader in discrete semiconductors, specializing in power MOSFETs, diodes, and optoelectronics with emphasis on ruggedness, thermal performance, and reliability.

The IRL520STRL belongs to Vishay's logic-level Power MOSFET family designed specifically for high-efficiency, high-reliability switching in 24–48 V industrial, automotive, and telecom power systems where low gate drive voltage and avalanche tolerance are mandatory.

FAQ

What is the gate threshold voltage range for the IRL520STRL?

The IRL520STRL has a gate threshold voltage (V_GS(th)) range of 1.0 V to 2.0 V at T_J = 25 °C and I_D = 250 µA. This logic-level specification ensures full enhancement with standard 3.3 V or 5 V microcontroller outputs, eliminating the need for gate driver boost stages. The IRL520STRL maintains usable R_DS(on) down to V_GS = 4 V (0.38 Ω), supporting robust operation under marginal drive conditions.

Can the IRL520STRL be used in avalanche mode repeatedly?

Yes, the IRL520STRL is explicitly rated for repetitive avalanche operation with E_AR = 6.0 mJ per pulse. This capability is validated per Vishay's test conditions (V_DD = 25 V, L = 3.0 mH, I_AS = 9.2 A) and enables reliable use in inductive load switching without external snubbers. The IRL520STRL's ruggedized die design and thermal construction support this rating across its full operating temperature range.

What is the thermal resistance from junction to case for the IRL520STRL?

The maximum junction-to-case (drain) thermal resistance (R_thJC) for the IRL520STRL is 2.5 °C/W. This value assumes proper soldering of the exposed drain tab to a sufficiently sized copper plane on the PCB. With this R_thJC, the IRL520STRL can dissipate up to 60 W at T_C = 25 °C - a key advantage over smaller packages when designing compact, high-current power stages.

Is the IRL520STRL compatible with surface-mount reflow processes?

Yes, the IRL520STRL in D2PAK (TO-263) package is qualified for standard lead-free reflow soldering with a peak temperature of 300 °C for 10 seconds, per Vishay's recommended profile. Its SnPb and lead-free variants (e.g., IRL520S and SiHL520S) share identical thermal and mechanical specifications. The IRL520STRL's tape-and-reel packaging further supports automated SMT assembly lines.

Does the IRL520STRL include an integrated body diode, and what are its recovery characteristics?

Yes, the IRL520STRL includes an integral reverse p–n junction body diode rated for 9.2 A continuous source-drain current. Its reverse recovery time (t_rr) is 130–190 ns at T_J = 25 °C, I_F = 9.2 A, and dI/dt = 100 A/µs, with Q_rr = 0.83–1.0 µC. These parameters make the IRL520STRL suitable for freewheeling in buck converters and moderate-frequency synchronous rectification, though external Schottky diodes may be preferred for ultra-fast recovery requirements.

IRL520STRL Specifications

Product attributes: Attribute value

Manufacturer:: Vishay Siliconix

Series:: -

Package/Case:: TO-263-3, D2PAK (2 Leads + Tab), TO-263AB

Packaging:: Tape & Reel (TR)

Product Status:: Active

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 100 V

Current - Continuous Drain (Id) @ 25°C:: 9.2A (Tc)

Drive Voltage (Max Rds On, Min Rds On):: 4V, 5V

Rds On (Max) @ Id, Vgs:: 270mOhm @ 5.5A, 5V

Vgs(th) (Max) @ Id:: 2V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 12 nC @ 5 V

Vgs (Max):: ±10V

Input Capacitance (Ciss) (Max) @ Vds:: 490 pF @ 25 V

FET Feature:: -

Power Dissipation (Max):: 3.7W (Ta), 60W (Tc)

Operating Temperature:: -55°C ~ 175°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: TO-263 (D2PAK)

IRL520STRL FAQ

1.How can I place an order for IRL520STRL through Aetrix?

Please submit a Request for Quotation (RFQ) for IRL520STRL on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for IRL520STRL reliable?

The price and inventory of IRL520STRL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IRL520STRL is usually 5 days.

3.What payment methods are accepted for IRL520STRL?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IRL520STRL transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for IRL520STRL?

IRL520STRL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your IRL520STRL order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for IRL520STRL?

For technical support, including IRL520STRL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IRL520STRL requirements.

6.How does Aetrix verify that IRL520STRL is sourced from the original manufacturer or authorized distributors?

All IRL520STRL products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that IRL520STRL meets industry standards.

7.What is the process for return or replacement of IRL520STRL?

All IRL520STRL units undergo pre-shipment inspection (PSI). If there is an issue with IRL520STRL, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The IRL520STRL part is unused and in its original packaging.

Return procedure for IRL520STRL:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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