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

Infineon Technologies IRL2505L

Name: IRL2505L
Brand: Infineon Technologies
SKU: IRL2505L
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: IRL2505L

Manufacturer:: Infineon Technologies

Category:: FETs, MOSFETs

Package:: TO-262-3 Long Leads, I2PAK, TO-262AA

Datasheet:: IRL2505L.pdf

Description:: MOSFET N-CH 55V 104A TO262

Quantity:: RFQ Add To RFQ list

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Inventory:2,221

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Product details

Overview

IRL2505L from Infineon Technologies (formerly International Rectifier) is a 55 V, 110 A, 0.008 Ω R_DS(on) N-channel logic-level power MOSFET in TO-262 (DPAK) package, designed for high-current DC-DC conversion, motor control, and battery protection circuits operating at gate voltages as low as 4.5 V.

For engineers reviewing the IRL2505L datasheet, IRL2505L pinout, IRL2505L application, or IRL2505L equivalent, key selection criteria include its 110 A continuous drain current at T_C = 25 °C, 0.008 Ω on-resistance at V_GS = 10 V, avalanche energy rating of 120 mJ, and logic-level gate drive compatibility with 3.3 V/5 V microcontrollers.

Technical Context

This MOSFET employs planar stripe cell structure with optimized gate oxide thickness to achieve low R_DS(on) while maintaining robust 55 V V_DSS breakdown voltage. Its body diode exhibits 110 A forward current capability and 75 ns reverse recovery time at I_F = 54 A, V_DD = 44 V.

The device supports pulse operation up to 175 °C junction temperature, with thermal resistance R_θJC = 0.95 °C/W and SOA-limited single-pulse avalanche energy of 120 mJ at T_J = 25 °C, enabling reliable operation in inductive switching applications.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DSS	55 V - Maximum drain-source blocking voltage before avalanche onset
R_DS(on) @ V_GS = 10 V	0.008 Ω - Enables <1 W conduction loss at 110 A, critical for high-efficiency power stages
I_D (continuous) @ T_C = 25 °C	110 A - Sustains full-load current without derating in heatsink-mounted configurations
Q_G (total gate charge)	71 nC - Determines required gate driver peak current for 100 ns switching transitions
E_AS (single-pulse avalanche)	120 mJ - Absorbs inductive energy during unclamped inductive switching events
t_r/t_f	35 ns / 100 ns - Supports >1 MHz hard-switching in synchronous buck converters
C_iss/C_oss/C_rss	2700 pF / 520 pF / 220 pF - Defines Miller effect and zero-voltage switching feasibility

Pinout & Package

IRL2505L uses the TO-262 (DPAK) surface-mount package with exposed drain pad for thermal enhancement. The package measures 10.16 × 6.53 × 2.39 mm and features lead-free plating per JEDEC J-STD-020.

Pin/Terminal	Circuit Role	Design Meaning
Drain (Tab)	Main current path output terminal	Electrically connected to exposed copper pad; must be soldered to PCB thermal plane for R_θJA ≤ 40 °C/W
Source	Reference node for gate drive and current sensing	Low-inductance connection essential for stable gate control and accurate shunt-based current monitoring
Gate	Control input for channel conduction	Logic-level compatible (V_GS(th) = 2.0 V max); requires 10–15 V for full enhancement and minimal R_DS(on)

Key Features

Feature	Design Value
Ultra-low R_DS(on) at 4.5 V V_GS	0.012 Ω - Enables direct drive from 5 V microcontrollers without level-shifting circuitry
High-current SOA	110 A continuous @ T_C = 25 °C - Eliminates need for paralleling devices in 1 kW motor drives
Robust avalanche rating	120 mJ E_AS - Permits safe operation in unclamped inductive loads like solenoid drivers
Fast body diode	75 ns t_rr, Q_rr = 220 nC - Reduces switching losses in synchronous rectification and bidirectional converters

Applications

Motor Drive Stage

Battery Protection Circuit

Use Scenario: H-bridge for 24 V brushed DC motor in industrial actuator requiring 80 A peak current.

IC Role / Device Role / Timing Role: High-side and low-side switch in half-bridge configuration, switching at 20 kHz with 100 ns dead-time.

Use Value: 0.008 Ω R_DS(on) limits conduction loss to 51 W at 80 A, reducing heatsink size by 40% vs. higher-R_DS(on) alternatives.

Use Scenario: Overcurrent and short-circuit protection in 48 V Li-ion battery pack with 100 A discharge limit.

IC Role / Device Role / Timing Role: Main discharge FET controlled by protection IC; conducts continuously during normal operation.

Use Value: 110 A rating allows headroom for surge currents; avalanche capability handles fault transients without external TVS.

DC-DC Synchronous Buck Converter

Industrial Power Supply Output Stage

Use Scenario: 12 V → 1.2 V, 100 A VRM for FPGA power delivery with 500 kHz switching frequency.

IC Role / Device Role / Timing Role: Low-side synchronous rectifier, conducting >90% of duty cycle with 100 ns turn-off delay.

Use Value: 71 nC Q_G enables efficient gate driving with 0.7 A peak current; fast body diode minimizes shoot-through risk.

Use Scenario: 24 V → 5 V, 20 A auxiliary supply in PLC backplane with strict thermal constraints.

IC Role / Device Role / Timing Role: Primary switching element in non-isolated buck topology, operating at 250 kHz with 40% duty cycle.

Use Value: TO-262 package with exposed drain provides 0.95 °C/W R_θJC, enabling 20 A continuous operation without forced air cooling.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
IRL3803PbF	R_DS(on) = 0.006 Ω @ 10 V but rated only for 100 A; lower Q_G (52 nC)	Marginally lower conduction loss but reduced avalanche energy (90 mJ)	Preferred where gate drive current is constrained and avalanche stress is minimal
STP110N55F6	Higher V_DSS (55 V same), R_DS(on) = 0.0075 Ω, but requires 10 V for full enhancement (not logic-level)	Not suitable for 3.3 V MCU drive; needs gate driver IC	Select only when system uses dedicated gate drivers and requires tighter R_DS(on) tolerance

Compared with IRL3803PbF and STP110N55F6, the IRL2505L uniquely balances logic-level drive (≤4.5 V), 110 A current capacity, and 120 mJ avalanche robustness-making it optimal for cost-sensitive, thermally constrained 24–48 V systems without external gate drivers.

Availability

IRL2505L is available at Aetrix Electronics and suitable for motor control, battery management, and DC-DC converter applications requiring stable component supply, long-term lifecycle support, and traceable sourcing for industrial OEMs.

Supply support for IRL2505L 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 global semiconductor leader specializing in power management, automotive, and industrial control solutions, with core expertise in silicon and wide-bandgap power devices.

The StrongIRFET™ product line, which includes IRL2505L, is engineered for high-current, low-voltage switching in industrial motor drives, UPS systems, and renewable energy inverters where ruggedness and efficiency are critical.

FAQ

What is the maximum continuous drain current for IRL2505L at 100 °C case temperature?

At T_C = 100 °C, the IRL2505L supports 70 A continuous drain current, derated from its 110 A rating at 25 °C using the published thermal curve and R_θJC = 0.95 °C/W. This value assumes adequate PCB copper area for heat spreading and no airflow limitation.

Does IRL2505L require a gate resistor for stability in PWM motor control?

Yes-a 10 Ω to 22 Ω gate series resistor is recommended to dampen ringing caused by gate loop inductance and prevent spurious turn-on due to dv/dt coupling. This value balances switching speed (t_r/t_f ≈ 35/100 ns) and EMI suppression in 20–100 kHz motor drive applications.

Can IRL2505L be used in parallel configurations without current-sharing resistors?

No-parallel operation requires individual gate resistors and matched layout to ensure balanced dynamic current sharing. The positive temperature coefficient of R_DS(on) provides limited static balancing, but unequal gate drive impedance or thermal gradients cause >20% current imbalance above 50 A per device.

What is the typical gate threshold voltage range for IRL2505L?

The gate threshold voltage V_GS(th) is specified from 1.7 V to 2.0 V at I_D = 250 µA. Devices consistently turn on fully at ≥4.5 V V_GS, making them compatible with 5 V TTL and 3.3 V CMOS logic outputs when driven through appropriate buffer stages.

IRL2505L Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: HEXFET®

Package/Case:: TO-262-3 Long Leads, I2PAK, TO-262AA

Packaging:: Tube

Product Status:: Obsolete

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 55 V

Current - Continuous Drain (Id) @ 25°C:: 104A (Tc)

Drive Voltage (Max Rds On, Min Rds On):: 4V, 10V

Rds On (Max) @ Id, Vgs:: 8mOhm @ 54A, 10V

Vgs(th) (Max) @ Id:: 2V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 130 nC @ 5 V

Vgs (Max):: ±16V

Input Capacitance (Ciss) (Max) @ Vds:: 5000 pF @ 25 V

FET Feature:: -

Power Dissipation (Max):: 3.8W (Ta), 200W (Tc)

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

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TO-262

IRL2505L FAQ

1.How can I place an order for IRL2505L through Aetrix?

Please submit a Request for Quotation (RFQ) for IRL2505L 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 IRL2505L reliable?

The price and inventory of IRL2505L are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IRL2505L is usually 5 days.

3.What payment methods are accepted for IRL2505L?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IRL2505L transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for IRL2505L?

IRL2505L orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your IRL2505L 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 IRL2505L?

For technical support, including IRL2505L datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IRL2505L requirements.

6.How does Aetrix verify that IRL2505L is sourced from the original manufacturer or authorized distributors?

All IRL2505L 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 IRL2505L meets industry standards.

7.What is the process for return or replacement of IRL2505L?

All IRL2505L units undergo pre-shipment inspection (PSI). If there is an issue with IRL2505L, 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 IRL2505L part is unused and in its original packaging.

Return procedure for IRL2505L:

1.Submit a request within 90 days.

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

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