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

Infineon Technologies IRL3716

Name: IRL3716
Brand: Infineon Technologies
SKU: IRL3716
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: IRL3716

Manufacturer:: Infineon Technologies

Category:: FETs, MOSFETs

Package:: TO-220-3

Datasheet:: IRL3716.pdf

Description:: MOSFET N-CH 20V 180A TO220AB

Quantity:: RFQ Add To RFQ list

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Inventory:5,891

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Product details

Overview

IRL3716 from Infineon Technologies (formerly International Rectifier) is a 20 V, 4.0 mΩ N-channel HEXFET Power MOSFET in TO-220AB package, rated for 180 A continuous drain current at 25°C and optimized for high-frequency synchronous rectification in telecom DC-DC converters. It features ultra-low gate charge (53 nC typ), fast switching (tr = 140 ns, tf = 36 ns), and fully characterized avalanche capability (640 mJ).

For engineers reviewing the IRL3716 datasheet, IRL3716 pinout, IRL3716 application, or IRL3716 equivalent, key selection criteria include R_DS(on) at 4.5 V (4.8 mΩ max), thermal resistance R_θJC (0.72 °C/W), reverse recovery performance (Q_rr = 87–130 nC), and safe operating area under pulsed 720 A conditions.

Technical Context

The IRL3716 employs planar vertical DMOS technology with optimized cell pitch and trench-assisted channel design to achieve sub-5 mΩ on-resistance at low gate drive voltages. Its gate threshold voltage (1.0–3.0 V) and transconductance (100 S typ) support robust 4.5 V logic-level operation without level-shifting circuitry.

Thermal design is enabled by direct die-to-case conduction via copper tab, validated by junction-to-case thermal resistance of 0.72 °C/W and SOA curves extending to 100 µs pulses at 180 A. The integrated body diode exhibits low forward voltage (0.93 V at 72 A, 25°C) and controlled reverse recovery (t_rr = 180–280 ns).

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	20 V - Supports 12 V input rails with margin for transient overshoot in telecom power systems
R_DS(on) @ V_GS = 4.5 V	4.8 mΩ max - Enables <1 W conduction loss at 72 A in high-current buck stages
I_D @ T_C = 25°C	180 A - Matches output stage requirements of >1 kW server VRMs
Q_g	53–79 nC - Allows efficient 500 kHz+ switching with standard gate drivers (e.g., IR2110)
E_AS	640 mJ - Withstands unclamped inductive energy during hard-switching faults
R_θJC	0.72 °C/W - Enables 100 W dissipation with ≤72°C case-to-junction rise under heatsink mounting
t_rr	180–280 ns - Limits cross-conduction loss in synchronous rectifier topologies

Pinout & Package

IRL3716 uses the industry-standard TO-220AB package with isolated mounting tab and 4-pin configuration (pins 1–4). The package provides mechanical robustness, thermal path integrity, and compatibility with legacy PCB footprints and heatsink clamps.

Pin/Terminal	Circuit Role	Design Meaning
1 - GATE	Control electrode	Accepts 0–16 V logic-level drive; Miller charge (Q_gd = 24–35 nC) dominates turn-off timing
2 - DRAIN	Main current sink	Connected to high-side switch node or transformer secondary; electrically tied to metal tab
3 - SOURCE	Reference and return path	Serves as local ground reference for gate drive; carries full load current and body diode reverse recovery charge
4 - DRAIN	Secondary drain connection	Parallel path to Pin 2 to reduce source inductance and improve high-frequency SOA stability

Key Features

Feature	Design Value
Logic-level gate drive	Operates fully enhanced at V_GS = 4.5 V, eliminating need for gate driver boost stages in 5 V/3.3 V control systems
Ultra-low R_DS(on)	4.0 mΩ typ at V_GS = 10 V enables <0.5 W conduction loss at 120 A, critical for 80 PLUS Titanium efficiency targets
Enhanced avalanche ruggedness	Rated for single-pulse E_AS = 640 mJ - supports reliable operation in non-isolated flyback and active clamp forward converters
Optimized body diode	Q_rr = 87–130 nC and soft recovery reduce EMI and voltage spikes in synchronous rectifier applications
Thermally efficient package	R_θJC = 0.72 °C/W allows direct mounting to heatsinks without thermal interface pads in medium-power industrial SMPS

Applications

Telecom DC-DC Converters

Server Voltage Regulators

Use Scenario: 48 V to 12 V isolated half-bridge converter in 5G base station power supply.

IC Role / Device Role / Timing Role: Synchronous rectifier in secondary side, replacing Schottky diodes to reduce conduction loss and improve efficiency above 95%.

Use Value: 4.0 mΩ R_DS(on) cuts rectifier losses by >60% vs. 40 V Schottky, enabling higher power density and lower thermal stress.

Use Scenario: Multiphase buck converter delivering 100+ A to AI accelerator GPUs.

IC Role / Device Role / Timing Role: High-current high-side switch operating at 500 kHz with 4.5 V gate drive from digital PWM controller.

Use Value: Low Q_g (53 nC) and fast switching (tr = 140 ns) minimize dead-time losses and enable precise phase interleaving.

Industrial Motor Drives

Active OR-ing Circuits

Use Scenario: 24 V BLDC inverter stage for factory automation servo drives.

IC Role / Device Role / Timing Role: Low-side switch in three-phase bridge, handling 150 A peak motor currents with PWM commutation.

Use Value: Avalanche rating (640 mJ) absorbs inductive kickback during short-circuit events without external snubbers.

Use Scenario: Redundant 12 V power rail combining two hot-swap supplies in network switches.

IC Role / Device Role / Timing Role: OR-ing FET controlling current flow direction based on supply voltage differential.

Use Value: Ultra-low V_GS(th) (1.0–3.0 V) ensures rapid turn-on at small voltage differentials (<50 mV), minimizing insertion loss.

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
IRF1404	R_DS(on) = 4.7 mΩ @ 10 V; V_DS = 40 V; Q_g = 131 nC	Higher voltage rating but 2.5× higher gate charge limits switching frequency to ≤200 kHz	Preferable only when 40 V blocking is required; unsuitable for 500 kHz telecom converters due to excessive switching loss
STP16NF06L	R_DS(on) = 5.5 mΩ @ 5 V; V_DS = 60 V; R_θJC = 1.0 °C/W	Wider V_DS range but higher on-resistance and thermal resistance degrade efficiency at >100 A	Acceptable for cost-sensitive 24 V industrial supplies where 10–15% efficiency penalty is tolerable

Compared with IRL3716, IRF1404 trades higher voltage headroom for significantly increased gate drive demand and reduced high-frequency capability, while STP16NF06L sacrifices conduction and thermal performance for broader voltage coverage-neither matches IRL3716's optimized balance for 20 V, high-current, high-frequency synchronous rectification.

Availability

IRL3716 is available at Aetrix Electronics and suitable for telecom DC-DC converters, server voltage regulators, and industrial motor drives requiring stable component supply and long-term production continuity.

Supply support for IRL3716 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

Infineon Technologies is a German semiconductor leader specializing in power management, automotive ICs, and industrial control solutions, with global manufacturing and quality certification to ISO/TS 16949 and IECQ QC 080000.

The IRL3716 belongs to Infineon's HEXFET® logic-level MOSFET product line, engineered specifically for high-efficiency, high-current switching in low-voltage DC-DC conversion and motor control applications.

FAQ

What is the maximum continuous drain current for IRL3716 at 100°C case temperature?

The IRL3716 supports 130 A continuous drain current at T_C = 100°C, as specified in its Absolute Maximum Ratings table. This derating reflects thermal limitations of the TO-220AB package and must be applied with appropriate heatsinking to maintain junction temperature below 175°C under sustained load.

Does IRL3716 have a built-in body diode, and what are its key characteristics?

Yes, IRL3716 integrates a monolithic p-n junction body diode with V_SD = 0.93 V at 72 A and 25°C, t_rr = 180–280 ns, and Q_rr = 87–130 nC. These parameters are fully characterized across temperature and support synchronous rectifier designs without external diodes.

Can IRL3716 be used with 3.3 V microcontroller GPIOs for gate drive?

No - while IRL3716 is logic-level, its guaranteed turn-on requires V_GS ≥ 4.5 V per datasheet test conditions. At 3.3 V, R_DS(on) rises sharply (>10 mΩ), increasing conduction loss beyond acceptable limits; a dedicated 5 V gate driver is required.

What is the recommended gate resistor value for optimal switching performance?

A 3.9 Ω gate resistor is used in the official switching time test circuit (Fig 10a), yielding td(off) = 38 ns and tf = 36 ns. Lower values (≤2.2 Ω) risk ringing and shoot-through; higher values (>10 Ω) increase switching losses disproportionately in high-frequency operation.

IRL3716 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: HEXFET®

Package/Case:: TO-220-3

Packaging:: Tube

Product Status:: Obsolete

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 20 V

Current - Continuous Drain (Id) @ 25°C:: 180A (Tc)

Drive Voltage (Max Rds On, Min Rds On):: 4.5V, 10V

Rds On (Max) @ Id, Vgs:: 4mOhm @ 90A, 10V

Vgs(th) (Max) @ Id:: 3V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 79 nC @ 4.5 V

Vgs (Max):: ±20V

Input Capacitance (Ciss) (Max) @ Vds:: 5090 pF @ 10 V

FET Feature:: -

Power Dissipation (Max):: 210W (Tc)

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

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TO-220AB

IRL3716 FAQ

1.How can I place an order for IRL3716 through Aetrix?

Please submit a Request for Quotation (RFQ) for IRL3716 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 IRL3716 reliable?

The price and inventory of IRL3716 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IRL3716 is usually 5 days.

3.What payment methods are accepted for IRL3716?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IRL3716 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for IRL3716?

IRL3716 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your IRL3716 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 IRL3716?

For technical support, including IRL3716 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IRL3716 requirements.

6.How does Aetrix verify that IRL3716 is sourced from the original manufacturer or authorized distributors?

All IRL3716 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 IRL3716 meets industry standards.

7.What is the process for return or replacement of IRL3716?

All IRL3716 units undergo pre-shipment inspection (PSI). If there is an issue with IRL3716, 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 IRL3716 part is unused and in its original packaging.

Return procedure for IRL3716:

1.Submit a request within 90 days.

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

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