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

Infineon Technologies IRFR4105ZTRL

Name: IRFR4105ZTRL
Brand: Infineon Technologies
SKU: IRFR4105ZTRL
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: IRFR4105ZTRL

Manufacturer:: Infineon Technologies

Category:: FETs, MOSFETs

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

Datasheet:: IRFR4105ZTRL.pdf

Description:: MOSFET N-CH 55V 30A DPAK

Quantity:: RFQ Add To RFQ list

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Product details

Overview

IRFR4105ZTRL from Infineon Technologies is an N-channel automotive-grade HEXFET® Power MOSFET in D-Pak (TO-252) package, rated for 55 V V_DSS, 24.5 mΩ R_DS(on) at V_GS = 10 V, and 30 A continuous drain current at T_C = 25°C. It features 175°C maximum junction temperature, fast switching (t_r = 40 ns, t_f = 24 ns), and rated repetitive avalanche capability - deployed in automotive DC-DC converters and motor control stages.

For engineers reviewing the IRFR4105ZTRL datasheet, IRFR4105ZTRL pinout, IRFR4105ZTRL application, or IRFR4105ZTRL equivalent, key selection criteria include its low R_DS(on) at 10 V gate drive, robust avalanche energy rating (E_AS = 120 mJ), thermal derating performance (3.12°C/W R_θJC), and AEC-Q101 qualification status for under-hood power switching.

Technical Context

This MOSFET employs advanced silicon processing to minimize on-resistance per die area while maintaining high ruggedness. Its integral body diode supports synchronous rectification and unclamped inductive switching, with confirmed reverse recovery time (t_rr = 19–29 ns) and charge (Q_rr = 14–21 nC) at I_F = 18 A.

The device operates with gate threshold voltage (V_GS(th)) between 2.0 V and 4.0 V, exhibits forward transconductance (g_fs) of 16 S typical, and delivers stable R_DS(on) up to 175°C junction temperature - validated by normalized resistance vs. temperature curves and SOA limits extending to 100 µs pulses at 175°C.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DSS	55 V - withstands automotive load-dump transients up to ISO 7637-2 Pulse 5a without clamping
R_DS(on) @ V_GS = 10 V	24.5 mΩ max - enables <1.5 W conduction loss at 30 A, critical for thermally constrained engine bay layouts
I_D @ T_C = 25°C	30 A - supports high-current 12 V/24 V automotive loads including solenoid drivers and fan controllers
E_AS (tested)	120 mJ - verified single-pulse avalanche energy allows safe operation during inductive turn-off in relay/motor circuits
T_J max	175°C - qualified for under-hood environments per AEC-Q101, enabling compact heatsink designs
Q_g	27 nC max - determines gate driver power requirement; compatible with standard 1–2 A peak gate drivers
t_r/t_f	40 ns / 24 ns - enables >200 kHz switching in buck converters without excessive switching loss

Pinout & Package

IRFR4105ZTRL uses the D-Pak (TO-252) surface-mount package with exposed drain pad for thermal enhancement. The package measures 6.73 mm × 6.22 mm × 2.39 mm and is RoHS-compliant.

Pin/Terminal	Circuit Role	Design Meaning
Pin 1 (Source)	Source terminal (S)	Low-side reference node; connects to PCB ground plane for minimal loop inductance in high-di/dt applications
Pin 2 (Gate)	Control input (G)	High-impedance MOS gate requiring <200 nA leakage; driven via series resistor (e.g., 24.5 Ω) to damp ringing
Pin 3 (Drain)	Power output (D)	Exposed copper pad - must be soldered to large copper pour for thermal path to PCB; carries full load current

Key Features

Feature	Design Value
Ultra-low R_DS(on)	24.5 mΩ @ 10 V ensures <0.75 W conduction loss at 18 A - reduces thermal stress in space-constrained modules
175°C junction rating	Enables operation in engine compartment ambient up to 125°C with 50°C safety margin - eliminates need for active cooling
Repetitive avalanche rated	Validated for repeated unclamped inductive switching (E_AR = 25 mJ @ 1% duty cycle) - improves system reliability without external snubbers
Fast body diode	t_rr = 19–29 ns and Q_rr = 14–21 nC support high-frequency synchronous rectification in DC-DC stages

Applications

Automotive Engine Control Unit (ECU)

12 V Automotive DC-DC Converter

Use Scenario: Switching high-current solenoids and fuel injectors in ECU power stages under wide ambient temperature swings.

IC Role / Device Role / Timing Role: Low-side N-channel switch controlled by microcontroller GPIO with 10 V gate drive.

Use Value: 175°C rating ensures uninterrupted operation during extended engine runtime; 24.5 mΩ R_DS(on) minimizes self-heating at 30 A peak loads.

Use Scenario: High-efficiency synchronous rectifier in 12 V → 5 V/3.3 V buck converter for infotainment systems.

IC Role / Device Role / Timing Role: Secondary-side power switch replacing Schottky diode to reduce conduction loss.

Use Value: Fast t_r/t_f (40/24 ns) and low Q_g enable clean 500 kHz switching; body diode Q_rr < 21 nC prevents shoot-through during dead-time.

Electric Power Steering (EPS) Motor Driver

Automotive HVAC Blower Control

Use Scenario: Half-bridge high-side/low-side switching in 24 V EPS motor phase legs.

IC Role / Device Role / Timing Role: Low-side switch in H-bridge topology, commutated at 20 kHz with PWM.

Use Value: Repetitive avalanche rating absorbs inductive kickback during rapid direction reversal; R_DS(on) stability over temperature avoids torque ripple.

Use Scenario: PWM-controlled blower motor driver in climate control systems with variable speed demand.

IC Role / Device Role / Timing Role: Single-ended switch modulating motor current via duty-cycle control.

Use Value: 30 A continuous rating handles 25 A stall current; low R_DS(on) extends battery life in stop-start 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
STL100N5LF6AG	60 V V_DSS, 10 mΩ R_DS(on), 100 A I_D, PowerFLAT 5x6 package	Higher current capacity but larger footprint; lacks AEC-Q101 certification	Preferred where higher I_D and lower R_DS(on) justify board area increase and non-automotive qualification
ON Semiconductor NTMFS5C673NL	60 V V_DSS, 6.7 mΩ R_DS(on), 60 A I_D, SO-8FL package	Lower R_DS(on) and smaller package, but only rated to 150°C T_J	Selected when thermal budget permits lower junction temp and higher efficiency is prioritized over under-hood ruggedness

Compared with STL100N5LF6AG and NTMFS5C673NL, IRFR4105ZTRL trades off absolute R_DS(on) and current rating for guaranteed AEC-Q101 compliance, 175°C operation, and proven avalanche ruggedness - making it the preferred choice for safety-critical, high-temperature automotive power stages where qualification and reliability outweigh raw efficiency metrics.

Availability

IRFR4105ZTRL is available at Aetrix Electronics and suitable for automotive engine control units, 12 V DC-DC converters, and electric power steering motor drivers requiring stable component supply across long production lifecycles.

Supply support for IRFR4105ZTRL 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 industrial control ICs, with global manufacturing and quality certification aligned to IATF 16949.

This device belongs to Infineon's automotive-qualified HEXFET® Power MOSFET product line, engineered specifically for high-reliability, high-temperature switching in engine bay and chassis control applications - emphasizing ruggedness, thermal stability, and AEC-Q101 compliance over generic power-switching specs.

FAQ

Is IRFR4105ZTRL AEC-Q101 qualified?

Yes. IRFR4105ZTRL is explicitly qualified to AEC-Q101 Rev D for automotive applications, with test reports covering HTOL, temperature cycling, HTRB, and unclamped inductive switching (UIS). Its 175°C T_J rating and repetitive avalanche validation are part of the qualification scope per datasheet Section 1 and Application Note AN-1005.

What is the recommended gate resistor value for IRFR4105ZTRL in a 200 kHz buck converter?

A 24.5 Ω series gate resistor is specified in the datasheet (Figure 13b test circuit) to achieve optimal switching speed and EMI control. At 200 kHz, this value balances t_r/t_f (40/24 ns) against gate drive power dissipation and ringing suppression - verified with 12 V gate drive and 18 A load in Figure 18 waveforms.

Can IRFR4105ZTRL replace IRFR3710Z in existing designs?

No direct drop-in replacement: IRFR3710Z has 100 V V_DSS and 23 mΩ R_DS(on), while IRFR4105ZTRL is 55 V rated. Substitution is only valid if system maximum V_DS remains ≤55 V and thermal design accommodates 24.5 mΩ vs. 23 mΩ - no change in pinout or package, but electrical derating must be revalidated.

Does IRFR4105ZTRL require a heatsink in a 30 A continuous application?

Yes. With R_θJC = 3.12°C/W and P_D ≈ 2.2 W at 30 A, junction temperature rise exceeds 100°C even with moderate case-to-ambient thermal path. A dedicated heatsink or large copper pour (≥10 cm² 2 oz Cu) is required to maintain T_J ≤175°C at 125°C ambient - per Figure 9 and SOA curve in Figure 8.

IRFR4105ZTRL 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):: 55 V

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

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

Rds On (Max) @ Id, Vgs:: 24.5mOhm @ 18A, 10V

Vgs(th) (Max) @ Id:: 4V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 27 nC @ 10 V

Vgs (Max):: ±20V

Input Capacitance (Ciss) (Max) @ Vds:: 740 pF @ 25 V

FET Feature:: -

Power Dissipation (Max):: 48W (Tc)

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

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

IRFR4105ZTRL FAQ

1.How can I place an order for IRFR4105ZTRL through Aetrix?

Please submit a Request for Quotation (RFQ) for IRFR4105ZTRL 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 IRFR4105ZTRL reliable?

The price and inventory of IRFR4105ZTRL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IRFR4105ZTRL is usually 5 days.

3.What payment methods are accepted for IRFR4105ZTRL?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IRFR4105ZTRL transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for IRFR4105ZTRL?

IRFR4105ZTRL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your IRFR4105ZTRL 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 IRFR4105ZTRL?

For technical support, including IRFR4105ZTRL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IRFR4105ZTRL requirements.

6.How does Aetrix verify that IRFR4105ZTRL is sourced from the original manufacturer or authorized distributors?

All IRFR4105ZTRL 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 IRFR4105ZTRL meets industry standards.

7.What is the process for return or replacement of IRFR4105ZTRL?

All IRFR4105ZTRL units undergo pre-shipment inspection (PSI). If there is an issue with IRFR4105ZTRL, 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 IRFR4105ZTRL part is unused and in its original packaging.

Return procedure for IRFR4105ZTRL:

1.Submit a request within 90 days.

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

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