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

Infineon Technologies IRL2505STRLPBF

Name: IRL2505STRLPBF
Brand: Infineon Technologies
SKU: IRL2505STRLPBF
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: IRL2505STRLPBF

Manufacturer:: Infineon Technologies

Category:: FETs, MOSFETs

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

Datasheet:: IRL2505STRLPBF.pdf

Description:: MOSFET N-CH 55V 104A D2PAK

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Product details

Overview

IRL2505STRLPBF from Infineon Technologies (formerly International Rectifier) is a 55 V, 110 A, 0.008 Ω (typ. at V_GS = 10 V) N-channel HEXFET® Power MOSFET in TO-262 (DPAK) package, designed for high-current DC-DC conversion, motor control, and power switching in industrial and automotive systems.

For engineers reviewing the IRL2505STRLPBF datasheet, IRL2505STRLPBF pinout, IRL2505STRLPBF application, or IRL2505STRLPBF equivalent, key selection criteria include R_DS(on) at low gate drive (≤ 0.012 Ω @ 4.5 V), 175 °C maximum junction temperature, avalanche energy rating (E_AS = 120 mJ), and lead-free TO-262 surface-mount compatibility.

Technical Context

This MOSFET employs planar stripe cell structure with optimized gate oxide and trench-enhanced body diode for low conduction loss and fast, soft reverse recovery. It operates with gate threshold voltage V_GS(th) of 1.0–2.0 V and supports logic-level drive down to 4.5 V, enabling direct interface with microcontrollers and PWM controllers without level-shifting.

Thermal performance is defined by R_θJC = 1.0 °C/W and R_θJA = 62 °C/W (on FR-4, 1 in² copper), supporting continuous I_D up to 90 A at T_C = 100 °C. Avalanche ruggedness is validated per single-pulse test (V_DD = 25 V, I_D = 54 A).

Key Specifications

Parameter	Value and Actual Design Meaning
V_DSS	55 V - Maximum drain-source blocking voltage before avalanche onset; sets safe operating range for 48 V bus and 24 V motor drives.
R_DS(on) max @ 10 V	0.008 Ω - Confirmed on-resistance at standard gate drive; enables <1 W conduction loss at 100 A.
R_DS(on) max @ 4.5 V	0.012 Ω - Verified low-voltage on-resistance; ensures full enhancement with 3.3 V/5 V logic outputs.
I_D continuous @ T_C=100°C	90 A - Sustained current capability under real heatsink conditions; defines PCB trace and thermal pad sizing.
E_AS	120 mJ - Single-pulse avalanche energy rating at T_J = 25 °C; validates robustness against inductive turn-off transients.
Q_G total	71 nC - Measured gate charge at V_GS = 10 V; determines driver strength requirement and switching loss trade-off.
t_f	42 ns - Typical fall time at I_D = 54 A, V_DD = 44 V; constrains minimum PWM frequency and EMI filter design.

Pinout & Package

IRL2505STRLPBF uses the TO-262 (DPAK) surface-mount package with exposed drain pad for thermal conduction. The package measures 10.16 × 4.70 × 2.39 mm (0.400 × 0.185 × 0.094 in) and features lead-free (Pb-free) finish per RoHS.

Pin/Terminal	Circuit Role	Design Meaning
Drain (Tab)	Main current path output terminal	Electrically connected to exposed metal tab; must be soldered to large copper pour for thermal and electrical integrity.
Source	Reference node for gate drive and current return	Low-inductance connection point for sense resistor placement and gate driver ground reference.
Gate	Control input for channel conduction	High-impedance node requiring <100 pF layout capacitance; sensitive to ringing without proper gate resistor.

Key Features

Feature	Design Value
Logic-level gate drive	Guaranteed turn-on at V_GS ≥ 4.5 V - eliminates need for external gate driver in MCU-based power stages.
Ultra-low R_DS(on)	0.008 Ω @ 10 V - reduces conduction losses by >30% vs. legacy 55 V MOSFETs in same package.
175 °C rated junction	Extended thermal margin - supports operation in sealed enclosures or high ambient environments without derating.
Avalanche-rated	120 mJ E_AS - withstands repetitive inductive switching stress without degradation in motor H-bridge or solenoid drivers.
Lead-free (Pb-free)	RoHS-compliant finish - meets IPC-J-STD-020 moisture sensitivity level 1 (MSL-1) for reflow assembly.

Applications

Brushless DC Motor Control

Automotive Body Control Module

Use Scenario: High-side and low-side switching in 3-phase BLDC inverter for HVAC blowers and power seats.

IC Role / Device Role / Timing Role: Power switch in half-bridge leg; handles 90 A peak phase current with <100 ns switching transitions.

Use Value: Low R_DS(on) minimizes heat generation in confined chassis space; 175 °C rating avoids thermal shutdown during sustained stall conditions.

Use Scenario: Load switching for headlights, fog lamps, and window lift motors in 12 V vehicle architecture.

IC Role / Device Role / Timing Role: High-current load switch replacing electromechanical relays; driven directly by 5 V microcontroller GPIO.

Use Value: Logic-level gate enables direct MCU control; avalanche rating absorbs inductive kickback from lamp filaments and motor windings.

Industrial DC-DC Converter

Server PSU Primary Switch

Use Scenario: Synchronous rectification and primary-side switching in isolated 48 V–12 V buck converters for PLC I/O modules.

IC Role / Device Role / Timing Role: Main power switch in hard-switched forward topology; operated at 100–250 kHz with 4.5 V gate drive.

Use Value: Low Q_G and fast t_f reduce switching losses; TO-262 package allows automated reflow assembly and high-power density layout.

Use Scenario: Primary-side switching in 80 PLUS Titanium-certified server power supplies using LLC resonant topology.

IC Role / Device Role / Timing Role: High-efficiency switching element handling 110 A pulsed drain current; synchronized to ZVS gate drive signals.

Use Value: 0.008 Ω R_DS(on) cuts conduction loss below 1 W at full load; MSL-1 rating ensures reliability through multiple reflow cycles.

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
IRF3205PBF	R_DS(on) = 0.008 Ω @ 10 V but V_DSS = 55 V; higher Q_G (71 nC vs. 80 nC); no 4.5 V drive guarantee.	Not rated for logic-level drive; requires 10 V gate driver; less suitable for 3.3 V MCU interfaces.	Prefer IRL2505STRLPBF when gate drive voltage ≤4.5 V or thermal margin >150 °C is required.
STP110N55F6	R_DS(on) = 0.0075 Ω @ 10 V; V_DSS = 55 V; Q_G = 65 nC; 175 °C rated; but TO-220 package (not surface-mount).	Through-hole mounting only; incompatible with DPAK footprint; higher R_θJA limits high-frequency use.	Choose STP110N55F6 only if through-hole assembly is mandated and thermal pad area is unrestricted.

Compared with IRF3205PBF and STP110N55F6, IRL2505STRLPBF uniquely combines logic-level drive, TO-262 surface-mount compatibility, and 175 °C junction rating-making it optimal for space-constrained, high-reliability industrial and automotive power stages where gate drive headroom and thermal headroom are limited.

Availability

IRL2505STRLPBF is available at Aetrix Electronics and suitable for brushless DC motor control, automotive body electronics, and industrial DC-DC converter designs requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.

Supply support for IRL2505STRLPBF 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 AG is a German semiconductor manufacturer specializing in power management, automotive electronics, and industrial control ICs and discrete devices.

The IRL2505STRLPBF belongs to Infineon's HEXFET® logic-level MOSFET product line, engineered for high-current, low-voltage switching applications where minimal gate drive voltage and thermal resilience are critical.

FAQ

What is the maximum continuous drain current for IRL2505STRLPBF at 100°C case temperature?

The maximum continuous drain current is 90 A at T_C = 100 °C, as specified in the official Infineon datasheet (document number IRL2505, Rev. C). This rating assumes adequate PCB copper area for thermal conduction and accounts for R_DS(on) increase with temperature. Derating is required above this temperature.

Does IRL2505STRLPBF support gate drive voltages below 4.5 V?

No - while V_GS(th) is as low as 1.0 V, the device is not characterized or guaranteed for reliable operation below 4.5 V. The datasheet specifies R_DS(on) ≤ 0.012 Ω only at V_GS = 4.5 V, and switching parameters (t_r, t_f) are not validated below that voltage.

Is the TO-262 package of IRL2505STRLPBF compatible with standard DPAK footprints?

Yes - the TO-262 (DPAK) package has standardized mechanical dimensions (10.16 × 4.70 mm body, 2.39 mm height) and pin pitch (2.54 mm), matching IPC-7351B DPAK footprint. The exposed drain tab requires thermal via pattern per Infineon's layout guidelines for optimal R_θJA.

How does the avalanche energy rating of IRL2505STRLPBF compare to similar 55 V MOSFETs?

At 120 mJ (single-pulse, T_J = 25 °C), IRL2505STRLPBF exceeds typical 55 V MOSFETs like IRF3205 (95 mJ) and STP110N55F6 (105 mJ). This higher E_AS reflects optimized silicon process and body diode design, making it especially suited for inductive load switching without snubbers.

IRL2505STRLPBF Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: HEXFET®

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

Packaging:: Tape & Reel (TR)

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:: Surface Mount

Supplier Device Package:: D2PAK

IRL2505STRLPBF FAQ

1.How can I place an order for IRL2505STRLPBF through Aetrix?

Please submit a Request for Quotation (RFQ) for IRL2505STRLPBF 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 IRL2505STRLPBF reliable?

The price and inventory of IRL2505STRLPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IRL2505STRLPBF is usually 5 days.

3.What payment methods are accepted for IRL2505STRLPBF?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IRL2505STRLPBF transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for IRL2505STRLPBF?

IRL2505STRLPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your IRL2505STRLPBF 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 IRL2505STRLPBF?

For technical support, including IRL2505STRLPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IRL2505STRLPBF requirements.

6.How does Aetrix verify that IRL2505STRLPBF is sourced from the original manufacturer or authorized distributors?

All IRL2505STRLPBF 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 IRL2505STRLPBF meets industry standards.

7.What is the process for return or replacement of IRL2505STRLPBF?

All IRL2505STRLPBF units undergo pre-shipment inspection (PSI). If there is an issue with IRL2505STRLPBF, 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 IRL2505STRLPBF part is unused and in its original packaging.

Return procedure for IRL2505STRLPBF:

1.Submit a request within 90 days.

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

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