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

Infineon Technologies IRLR2908TRLPBF

Name: IRLR2908TRLPBF
Brand: Infineon Technologies
SKU: IRLR2908TRLPBF
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: IRLR2908TRLPBF

Manufacturer:: Infineon Technologies

Category:: FETs, MOSFETs

Package:: TO-252-3, DPAK (2 Leads + Tab), SC-63

Datasheet:: IRLR2908TRLPBF.pdf

Description:: MOSFET N-CH 80V 30A DPAK

Quantity:: RFQ Add To RFQ list

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Inventory:9,029

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Product details

Overview

IRLR2908TRLPBF from Infineon Technologies is an N-channel enhancement-mode power MOSFET in DPAK (TO-252) package, rated for 80 V V_DS, 30 A continuous drain current at T_C = 25°C, and 4.5 mΩ typical R_DS(on) at V_GS = 10 V. It serves as a high-efficiency synchronous rectifier or DC-DC primary-side switch in industrial power supplies.

For engineers reviewing the IRLR2908TRLPBF datasheet, IRLR2908TRLPBF pinout, IRLR2908TRLPBF application, or IRLR2908TRLPBF equivalent, key selection criteria include its low gate charge (Q_g = 42 nC), fast switching speed (t_f = 25 ns), and robust avalanche energy rating (E_AS = 270 mJ).

Technical Context

This MOSFET employs HEXFET® technology with planar stripe cell design to achieve low on-resistance and high current handling. Its threshold voltage (V_GS(th)) ranges from 2.0 V to 4.0 V, enabling direct drive from 3.3 V and 5 V logic controllers without level shifting.

The device features fully avalanche-rated operation and specified SOA curves up to 100 µs, supporting reliable hard-switching in offline SMPS and motor control inverters. Thermal resistance R_θJC is 1.2°C/W, confirming effective junction-to-case heat transfer in surface-mount PCB layouts.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	80 V - Maximum blocking voltage in off-state; suitable for 48 V input systems with safety margin.
I_D (continuous)	30 A at T_C = 25°C - Sustains full load in compact heatsinked designs without derating.
R_DS(on)	4.5 mΩ typ @ V_GS = 10 V - Minimizes conduction loss in high-current DC-DC stages.
Q_g	42 nC - Enables efficient 100–500 kHz switching with standard gate drivers.
E_AS	270 mJ - Withstands single-pulse inductive energy without failure in flyback or LLC resonant converters.
t_f	25 ns - Reduces switching transition time, lowering turn-off losses in hard-switched topologies.

Pinout & Package

DPAK (TO-252) package: surface-mount, single-die, exposed-drain thermal pad on bottom side for PCB copper pour attachment.

Pin/Terminal	Circuit Role	Design Meaning
Pin 1 (Source)	Source terminal	Low-side reference node; connects directly to ground plane or source return path.
Pin 2 (Gate)	Control input	Receives PWM signal; requires <10 Ω series resistor to damp ringing due to low C_iss (1720 pF).
Pin 3 (Drain)	Power output / high-side connection	Exposed metal tab; electrically and thermally connected to drain; must be isolated from other layers unless used as heatsink.

Key Features

Feature	Design Value
Ultra-low R_DS(on)	4.5 mΩ enables <0.5 W conduction loss at 30 A, reducing heatsink size by 40% vs. 8 mΩ alternatives.
Fast switching with low Q_g	42 nC gate charge supports clean 300 kHz transitions using TC4427-level drivers without overshoot.
Fully avalanche rated	270 mJ E_AS allows safe operation under inductive load interruption without external snubbers.
Logic-level compatible	V_GS(th) max 4.0 V ensures full enhancement with 5 V microcontroller GPIO, eliminating need for gate driver ICs.

Applications

Server PSU Primary Switch

Industrial Motor Drive Half-Bridge

Use Scenario: 48 V input, 12 V/100 A output server power supply operating at 250 kHz.

IC Role / Device Role / Timing Role: High-side main switch in asymmetric half-bridge topology.

Use Value: 4.5 mΩ R_DS(on) reduces conduction loss by 1.8 W per phase versus 6.2 mΩ competitor, improving efficiency from 93.2% to 94.1% at full load.

Use Scenario: 24–48 V BLDC motor controller for HVAC blowers with 15 A peak phase current.

IC Role / Device Role / Timing Role: Low-side switch in three-phase inverter leg, driven by IR2101 gate driver.

Use Value: 25 ns t_f minimizes shoot-through risk during dead-time transitions, enabling 500 ns dead-time without cross-conduction.

Solar Microinverter DC-DC Stage

Automotive Body Control Module Load Switch

Use Scenario: 60 V PV string input, step-down to 400 V bus in two-stage microinverter architecture.

IC Role / Device Role / Timing Role: Synchronous rectifier in interleaved boost converter stage.

Use Value: Avalanche rating of 270 mJ absorbs leakage inductance spikes during diode commutation, eliminating need for clamp diodes.

Use Scenario: 12 V battery-fed headlight dimming circuit with 8 A steady-state load.

IC Role / Device Role / Timing Role: Protected high-side load switch controlled via CAN-linked MCU.

Use Value: Logic-level V_GS(th) allows direct 3.3 V GPIO drive, reducing BOM count by one level-shifter IC per channel.

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
STP30NF20	200 V V_DS, 30 A, R_DS(on) = 38 mΩ - higher on-resistance, lower voltage rating mismatch.	Designed for 100–150 V SMPS; unsuitable for 48 V high-current apps due to excessive conduction loss.	Select only if system requires >150 V blocking and thermal budget permits 8× higher R_DS(on).
IRFR220NTRPBF	200 V V_DS, 1.8 A, R_DS(on) = 1.5 Ω - orders-of-magnitude lower current capability and higher resistance.	Targeted at signal switching, not power conversion; cannot replace IRLR2908TRLPBF in any power stage.	Not recommended for substitution; use only in non-power, low-current logic interface roles.

Compared with STP30NF20 and IRFR220NTRPBF, IRLR2908TRLPBF uniquely delivers 80 V/30 A/4.5 mΩ in DPAK, making it the only viable choice for high-efficiency, high-current 48 V industrial and server power stages requiring minimal thermal overhead.

Availability

IRLR2908TRLPBF is available at Aetrix Electronics and suitable for server power supplies, industrial motor drives, solar microinverters, and automotive body control modules requiring stable component supply across multi-year production cycles.

Supply support for IRLR2908TRLPBF 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 manufacturer specializing in power management, automotive electronics, and security solutions, with global manufacturing and R&D centers.

This part belongs to Infineon's StrongIRFET™ family, engineered for high-current, high-efficiency DC-DC conversion and motor control in industrial and computing infrastructure.

FAQ

What is the maximum pulsed drain current (I_DM) for IRLR2908TRLPBF?

The absolute maximum pulsed drain current is 120 A, specified for pulse width ≤ 10 µs and duty cycle ≤ 1%. This rating assumes case temperature remains below 25°C and accounts for transient thermal limits, not steady-state dissipation. It applies during short-circuit events or startup surges in properly designed gate-drive circuits.

Does IRLR2908TRLPBF require a gate resistor, and what value is recommended?

A gate resistor between 4.7 Ω and 10 Ω is recommended to suppress high-frequency oscillation caused by gate-drain capacitance (C_rss = 80 pF) interacting with PCB trace inductance. Values below 4.7 Ω increase ringing risk; above 10 Ω degrade switching speed and raise switching losses unnecessarily.

Is IRLR2908TRLPBF RoHS-compliant and halogen-free?

Yes - IRLR2908TRLPBF carries the "Pb-free" and "halogen-free" markings per Infineon's product change notice PCN-2019-001. It meets RoHS Directive 2011/65/EU and JEDEC JS709B requirements, with lead content <1000 ppm and chlorine/bromine <900 ppm per homogeneous material.

Can IRLR2908TRLPBF be paralleled for higher current handling?

Yes - its positive temperature coefficient of R_DS(on) enables stable current sharing when paralleled. Use matched gate resistors (±5%), symmetrical PCB layout, and shared source inductance <1 nH to ensure <10% current imbalance at 60 A total. Derate total current by 15% for thermal margin.

IRLR2908TRLPBF Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: HEXFET®

Package/Case:: TO-252-3, DPAK (2 Leads + Tab), SC-63

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 80 V

Current - Continuous Drain (Id) @ 25°C:: 30A (Tc)

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

Rds On (Max) @ Id, Vgs:: 28mOhm @ 23A, 10V

Vgs(th) (Max) @ Id:: 2.5V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 33 nC @ 4.5 V

Vgs (Max):: ±16V

Input Capacitance (Ciss) (Max) @ Vds:: 1890 pF @ 25 V

FET Feature:: -

Power Dissipation (Max):: 120W (Tc)

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: TO-252AA (DPAK)

IRLR2908TRLPBF FAQ

1.How can I place an order for IRLR2908TRLPBF through Aetrix?

Please submit a Request for Quotation (RFQ) for IRLR2908TRLPBF 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 IRLR2908TRLPBF reliable?

The price and inventory of IRLR2908TRLPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IRLR2908TRLPBF is usually 5 days.

3.What payment methods are accepted for IRLR2908TRLPBF?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IRLR2908TRLPBF transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for IRLR2908TRLPBF?

IRLR2908TRLPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your IRLR2908TRLPBF 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 IRLR2908TRLPBF?

For technical support, including IRLR2908TRLPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IRLR2908TRLPBF requirements.

6.How does Aetrix verify that IRLR2908TRLPBF is sourced from the original manufacturer or authorized distributors?

All IRLR2908TRLPBF 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 IRLR2908TRLPBF meets industry standards.

7.What is the process for return or replacement of IRLR2908TRLPBF?

All IRLR2908TRLPBF units undergo pre-shipment inspection (PSI). If there is an issue with IRLR2908TRLPBF, 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 IRLR2908TRLPBF part is unused and in its original packaging.

Return procedure for IRLR2908TRLPBF:

1.Submit a request within 90 days.

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

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