Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

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

Infineon Technologies 94-2304

Name: 94-2304
Brand: Infineon Technologies
SKU: 94-2304
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: 94-2304

Manufacturer:: Infineon Technologies

Category:: FETs, MOSFETs

Package:: TO-220-3

Datasheet:: 94-2304.pdf

Description:: MOSFET N-CH 30V 116A TO220AB

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:7,596

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

IRL2203N from International Rectifier is a logic-level N-channel HEXFET® Power MOSFET in TO-220AB package, rated for 30V V_DSS, 7.0 mΩ R_DS(on) at V_GS = 10V, 116A continuous drain current at T_C = 25°C, and 175°C maximum junction temperature. It serves as a high-efficiency, fast-switching power switch in DC-DC converters, motor drives, and battery protection circuits.

For engineers reviewing the IRL2203N datasheet, IRL2203N pinout, IRL2203N application, or IRL2203N equivalent, key selection criteria include its low gate threshold (1.0–2.0 V), ultra-low on-resistance, full avalanche rating, dynamic dv/dt capability (5.0 V/ns), and thermal resistance (R_θJC = 0.85 °C/W) - all critical for high-current, thermally constrained industrial switching designs.

Technical Context

The IRL2203N employs advanced HEXFET processing to achieve ultra-low R_DS(on) per die area while maintaining rugged unclamped inductive switching performance. Its logic-level gate drive (V_GS(th) = 1.0–2.0 V) enables direct interface with 3.3V/5V microcontrollers without level-shifting.

It features fully rated repetitive avalanche energy (E_AS = 1320 mJ), fast switching (t_d(off) = 23 ns, t_f = 66 ns), and integrated body diode with t_rr = 56–84 ns and Q_rr = 110–170 nC - supporting synchronous rectification and hard-switched topologies.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DSS	30 V - Maximum blocking voltage before avalanche; suitable for 24V bus systems with margin.
R_DS(on)	7.0 mΩ @ V_GS = 10V - Enables <1W conduction loss at 116A, critical for high-current efficiency.
I_D (continuous)	116 A @ T_C = 25°C - Limited by package thermal capacity; derates to 75A per package rating.
Q_g	60 nC - Total gate charge determines driver strength requirement for 100 kHz+ switching.
t_f	66 ns - Fast fall time reduces switching losses in hard-switched SMPS and motor gate drivers.
E_AS	1320 mJ - Single-pulse avalanche energy supports robust operation during inductive load transients.
R_θJC	0.85 °C/W - Low junction-to-case thermal resistance enables effective heatsinking in compact enclosures.

Pinout & Package

Package: TO-220AB - Industry-standard through-hole power package with isolated tab, optimized for ≤50W dissipation and mechanical mounting via M3 screw (1.1 N·m torque).

Pin/Terminal	Circuit Role	Design Meaning
1 (Gate)	Control input	Logic-level compatible; requires ≤2.0 V to turn on; driven by MCU GPIO or dedicated gate driver.
2 (Drain)	High-side power output	Connected to load supply rail; electrically tied to metal tab; must be insulated from heatsink if floating.
3 (Source)	Power return / reference	Serves as common return path and gate reference; ties to system ground or low-side switch node.
4 (Drain – Tab)	Thermal & electrical connection	Electrically identical to Pin 2; provides primary heat path to heatsink; requires insulating washer if mounted to grounded heatsink.

Key Features

Feature	Design Value
Ultra-low R_DS(on)	7.0 mΩ minimizes I²R conduction loss in high-current paths like battery disconnect and motor phase switches.
175°C operating temperature	Enables reliable operation in sealed industrial enclosures or under sustained thermal stress without derating.
Full avalanche rating	Guarantees survivability during unclamped inductive switching events (e.g., relay coil interruption, motor freewheeling).
Dynamic dv/dt immunity	Rated for 5.0 V/ns - prevents false turn-on in noisy high-di/dt environments such as H-bridge motor control.
Low gate threshold	V_GS(th) = 1.0–2.0 V allows direct 3.3V/5V MCU drive, eliminating external level shifters in space-constrained designs.

Applications

DC-DC Converter Primary Switch

Battery Protection Circuit

Use Scenario: High-current buck converter in telecom power shelf delivering 12V/50A from 48V input.

IC Role / Device Role / Timing Role: Main synchronous rectifier switch operating at 200 kHz with forced PWM control.

Use Value: 7.0 mΩ R_DS(on) limits conduction loss to <1.8 W at 50A, enabling >95% efficiency without active cooling.

Use Scenario: Overcurrent and short-circuit protection in 24V Li-ion battery pack management system.

IC Role / Device Role / Timing Role: Bidirectional load switch placed between battery and system load, controlled by protection IC.

Use Value: Full avalanche rating (1320 mJ) absorbs fault energy during sudden short-circuit events without failure.

H-Bridge Motor Driver

Hot-Swap Controller

Use Scenario: 24V brushed DC motor driver in automated warehouse conveyor system.

IC Role / Device Role / Timing Role: Low-side switch in half-bridge configuration, commutated at ≤10 kHz with PWM duty control.

Use Value: 5.0 V/ns dv/dt rating prevents shoot-through during fast voltage transitions across parasitic capacitance.

Use Scenario: Inrush current limiting for hot-pluggable 24V backplane modules in industrial PLC chassis.

IC Role / Device Role / Timing Role: Series pass element controlled by dedicated hot-swap controller IC.

Use Value: 116A continuous rating and 400A pulsed capability support rapid, controlled ramp-up of large capacitive loads.

Equivalent & Alternatives

The following parts are listed as comparable options for similar power switching applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
STP36NF20	200V V_DSS, 36 mΩ R_DS(on), TO-220 package, higher voltage rating but higher on-resistance	Designed for 100–200V systems (e.g., solar MPPT, AC-DC PFC); unsuitable for 24V high-current efficiency-critical use	Select only when higher blocking voltage is required; avoid where low R_DS(on) dominates thermal design.
IRLB8721PBF	30V V_DSS, 7.2 mΩ R_DS(on), TO-220AB, same logic-level gate but lower ID (62A continuous)	Lower current rating limits use to ≤40A applications; smaller die reduces thermal mass and cost	Preferred for space- and cost-sensitive 24V systems with <50A peak load; not drop-in for 116A designs.

Compared with STP36NF20 and IRLB8721PBF, the IRL2203N uniquely balances ultra-low on-resistance, high current capability, and logic-level drive in a single TO-220AB device - making it optimal for 24V industrial power stages where conduction loss and thermal headroom are primary constraints.

Availability

IRL2203N is available at Aetrix Electronics and suitable for DC-DC converters, motor drives, and battery protection circuits requiring stable component supply and long-term industrial availability.

Supply support for IRL2203N 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

International Rectifier (now part of Infineon Technologies) was a pioneer in power semiconductor innovation, specializing in high-efficiency MOSFETs, IGBTs, and driver ICs for industrial, automotive, and computing markets.

The HEXFET® Power MOSFET product line was engineered for high-current, high-reliability switching in commercial and industrial power conversion - emphasizing low R_DS(on), rugged avalanche performance, and thermal robustness.

FAQ

Is the IRL2203N suitable for 3.3V microcontroller gate drive?

Yes. With a gate threshold voltage (V_GS(th)) of 1.0–2.0 V and guaranteed turn-on at V_GS = 4.5 V, the IRL2203N is explicitly designed as a logic-level MOSFET. It achieves full enhancement and low R_DS(on) with 3.3V or 5V drive, eliminating need for gate boosters in most embedded applications.

What is the maximum safe continuous current at 100°C case temperature?

The datasheet specifies 82 A continuous drain current at T_C = 100°C and V_GS = 10 V. This reflects thermal derating due to reduced heat transfer at elevated temperatures; actual usable current depends on heatsink performance and ambient conditions.

Does the IRL2203N have an integrated body diode, and what are its recovery characteristics?

Yes - it includes a monolithic p-n junction body diode with typical reverse recovery time (t_rr) of 56–84 ns and reverse recovery charge (Q_rr) of 110–170 nC at T_J = 25°C, I_F = 60A, and di/dt = 100 A/µs. These values support moderate-frequency synchronous rectification but require snubbing in high-di/dt flyback topologies.

Can the IRL2203N be used in parallel configurations for higher current handling?

Yes - its positive temperature coefficient of R_DS(on) (see Fig 4) ensures inherent current sharing when paralleled. However, layout symmetry (matched gate and source inductance), individual gate resistors (≥10 Ω), and thermal coupling must be carefully implemented to prevent imbalance and localized overheating.

94-2304 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):: 30 V

Current - Continuous Drain (Id) @ 25°C:: 116A (Tc)

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

Rds On (Max) @ Id, Vgs:: 7mOhm @ 60A, 10V

Vgs(th) (Max) @ Id:: 1V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 60 nC @ 4.5 V

Vgs (Max):: ±16V

Input Capacitance (Ciss) (Max) @ Vds:: 3290 pF @ 25 V

FET Feature:: -

Power Dissipation (Max):: 180W (Tc)

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

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TO-220AB

94-2304 FAQ

1.How can I place an order for 94-2304 through Aetrix?

Please submit a Request for Quotation (RFQ) for 94-2304 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 94-2304 reliable?

The price and inventory of 94-2304 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 94-2304 is usually 5 days.

3.What payment methods are accepted for 94-2304?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 94-2304 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 94-2304?

94-2304 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 94-2304 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 94-2304?

For technical support, including 94-2304 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 94-2304 requirements.

6.How does Aetrix verify that 94-2304 is sourced from the original manufacturer or authorized distributors?

All 94-2304 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 94-2304 meets industry standards.

7.What is the process for return or replacement of 94-2304?

All 94-2304 units undergo pre-shipment inspection (PSI). If there is an issue with 94-2304, 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 94-2304 part is unused and in its original packaging.

Return procedure for 94-2304:

1.Submit a request within 90 days.

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

Tech Hub

2026-07-29 18650 Battery: Voltage, Capacity, Charging and Pack Design

18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…

2026-07-27 Hall Effect Sensor: Working Principle, Types, Circuits and Applications

Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…

2026-07-20 Product Change Notification (PCN) in Electronic Components: Meaning and Supply Chain Response

Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…

2026-07-19 Blend Door Actuator: Symptoms, Location, Reset and Replacement Guide

A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…

2026-07-17 Raspberry Pi Alternatives: Chip-Level Comparison, Compatibility and Replacement Guide

Engineering guide to Raspberry Pi alternatives, covering chip-level differences, Orange Pi, ROCK, Jetson, Banana Pi, NanoPi, Compute Module, Pico, GPIO, camera, HAT compatibility, and replacement risks…

2026-07-13 How to Test Dynamic Load Response in Low-Voltage High-Current Buck Converters

Engineering guide to dynamic load response testing for high-current buck converters, covering load step setup, slew rate, Vcore undershoot, overshoot, recovery time, probe location, output capacitors a…

2026-07-08 Output Capacitor Selection for High-Current ASIC Vcore Rails

Engineering guide to output capacitor selection for ASIC Vcore rails, covering bulk capacitors, polymer capacitors, MLCC decoupling, DC bias, ESR, ESL, placement, transient response and substitution ri…

2026-07-07 High-Current ASIC Core Power Supply Design: 12-Phase Buck, PMBus and Dynamic Load Response

Engineering guide to high-current ASIC Vcore rails, covering 12-phase buck architecture, PMBus control, dynamic load testing, output capacitor networks, smart power stage selection, thermal design and …

2026-07-06 Voltage Regulator: Types, Circuits, Testing and Selection Guide

Voltage regulator guide covering linear, LDO, 7805, Zener, adjustable, buck, VRM and alternator regulators, with design checks, testing methods, troubleshooting and datasheet-based selection.

2026-06-30 Amplifiers Explained: Types, Circuits, Gain, Classes and Applications

Amplifier guide covering voltage, current and power amplification, gain, feedback, amplifier classes, audio and RF applications, op-amp circuits, transimpedance amplifiers, datasheet selection and trou…