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

Infineon Technologies IRFZ44ESTRRPBF

Name: IRFZ44ESTRRPBF
Brand: Infineon Technologies
SKU: IRFZ44ESTRRPBF
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: IRFZ44ESTRRPBF

Manufacturer:: Infineon Technologies

Category:: FETs, MOSFETs

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

Datasheet:: IRFZ44ESTRRPBF.pdf

Description:: MOSFET N-CH 60V 48A D2PAK

Quantity:: RFQ Add To RFQ list

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Inventory:5,245

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Product details

Overview

IRFZ44ESTRRPBF from Infineon Technologies (formerly International Rectifier) is a 60V, 48A N-channel enhancement-mode surface-mount power MOSFET in D2PAK package, featuring R_DS(on) = 0.023Ω at V_GS = 10V, 192A pulsed drain current, and full avalanche rating. It serves as a high-efficiency main switch in DC-DC converters, motor drives, and UPS inverters operating up to 175°C junction temperature.

For engineers reviewing the IRFZ44ESTRRPBF datasheet, IRFZ44ESTRRPBF pinout, IRFZ44ESTRRPBF application, or IRFZ44ESTRRPBF equivalent, key selection criteria include its 0.023Ω on-resistance at 10V gate drive, 220mJ single-pulse avalanche energy, 60ns rise time, and D2PAK thermal performance with 1.4°C/W junction-to-case resistance - critical for high-current switching reliability.

Technical Context

This HEXFET® device uses fifth-generation silicon processing to achieve low R_DS(on) per die area while maintaining fast switching (t_r = 60ns, t_f = 70ns) and robust avalanche capability (E_AS = 220mJ). Its gate charge profile (Q_g = 60nC, Q_gd = 23nC) supports efficient 10V gate drive in hard-switched topologies.

The integrated body diode exhibits t_rr = 69–104ns and Q_rr = 177–266nC under 29A forward current, enabling moderate-frequency synchronous rectification. Thermal design leverages the D2PAK's 1.4°C/W R_θJC and low-profile mounting for PCB-constrained power stages.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DSS	60V - Maximum blocking voltage before avalanche onset; sets upper limit for bus voltage in buck/boost converters.
R_DS(on)	0.023Ω @ V_GS = 10V, I_D = 29A - Directly determines conduction loss (P_cond = I² × 0.023) in continuous high-current operation.
I_D (T_C = 25°C)	48A - Continuous safe operating current with heatsink; defines minimum trace width and copper area needed on PCB.
E_AS	220mJ - Energy-handling capacity during single inductive switching events; enables reliable operation without snubbers in flyback or motor phase-legs.
t_r/t_f	60ns/70ns - Rise/fall times at V_DD = 30V, I_D = 29A, R_G = 15Ω; constrains maximum practical switching frequency before switching loss dominates.
R_θJC	1.4°C/W - Junction-to-case thermal resistance; allows direct calculation of case temperature rise (ΔT = P_diss × 1.4) for thermal interface design.
Q_g	60nC - Total gate charge required for full turn-on; determines driver current requirement (I_drive ≥ Q_g/t_on) and gate resistor sizing.

Pinout & Package

IRFZ44ESTRRPBF is housed in a surface-mount D2PAK (TO-263) package with three terminals: Drain (tab), Source (pin 2), and Gate (pin 1). The exposed drain pad provides low-inductance, high-current path and primary thermal conduction to the PCB copper pour.

Pin/Terminal	Circuit Role	Design Meaning
Drain (Tab)	Main high-side current path and thermal interface	Electrically connected to PCB copper pour; carries full load current and dissipates >95% of heat; requires solder mask opening and thermal vias.
Source (Pin 2)	Reference node for gate drive and current sensing	Low-inductance return path for gate loop; used for Kelvin source connection in precision current sensing or active Miller clamp circuits.
Gate (Pin 1)	Control terminal for channel modulation	High-impedance input requiring <60nC charge; sensitive to ringing; must be routed away from drain traces to minimize capacitive coupling.

Key Features

Feature	Design Value
Fully avalanche rated	220mJ single-pulse energy tolerance eliminates need for external clamping in inductive load switching.
Low R_DS(on)	0.023Ω reduces conduction losses by >30% vs. legacy 60V MOSFETs at 30A, improving efficiency in 12V–48V systems.
D2PAK surface-mount package	Enables automated assembly while delivering 110W power dissipation and 1.4°C/W thermal resistance - superior to TO-220 in space-constrained designs.
Fast switching speed	60ns rise time supports >100kHz PWM in DC-DC converters without excessive gate drive power or EMI filtering overhead.
Lead-free construction	RoHS-compliant "PbF" suffix confirms exemption-free lead-free plating and solderability per J-STD-020 moisture sensitivity level 3.

Applications

DC-DC Buck Converter

Brushed DC Motor Drive

Use Scenario: 48V input to 12V/20A output step-down converter in telecom power shelf.

IC Role / Device Role / Timing Role: High-side synchronous rectifier switch operating at 200kHz with 10V gate drive.

Use Value: 0.023Ω R_DS(on) limits conduction loss to <1.0W at full load, enabling natural convection cooling without heatsink.

Use Scenario: H-bridge driver for 24V, 15A brushed motor in industrial actuator.

IC Role / Device Role / Timing Role: Low-side switching element handling bidirectional current with body diode freewheeling.

Use Value: 220mJ avalanche rating absorbs inductive kickback during PWM dead-time, preventing voltage overshoot beyond 60V.

Uninterruptible Power Supply (UPS)

LED Constant-Current Driver

Use Scenario: Inverter stage converting 36V battery to 120VAC via full-bridge topology.

IC Role / Device Role / Timing Role: Main switching transistor in half-bridge leg, switching at 50kHz with 15V gate drive.

Use Value: 192A pulsed current rating supports peak surge currents during AC waveform zero-crossing transitions.

Use Scenario: Primary switch in 48V input, 350mA constant-current LED driver for street lighting.

IC Role / Device Role / Timing Role: PWM-controlled current regulator using source-sense feedback.

Use Value: 1.4°C/W R_θJC enables stable 175°C junction operation with minimal PCB copper, reducing BOM cost vs. TO-247 alternatives.

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
STP60NF06	R_DS(on) = 0.018Ω, but TO-220 package; higher R_θJA (62°C/W vs. D2PAK's 1.4°C/W R_θJC)	Requires external heatsink; unsuitable for ultra-thin or high-power-density layouts.	Choose when board space permits discrete heatsink mounting and lower on-resistance justifies thermal overhead.
IXTP50N065	65V rating, R_DS(on) = 0.015Ω, TO-220 package; no avalanche rating specified in datasheet	Lacks documented E_AS; not recommended for inductive loads without snubber networks.	Prefer only in resistive or capacitive switching applications where avalanche stress is absent.

Compared with STP60NF06 and IXTP50N065, IRFZ44ESTRRPBF uniquely combines D2PAK surface-mount integration, 220mJ avalanche robustness, and 0.023Ω on-resistance - making it optimal for compact, high-reliability 60V switching where thermal path control and inductive fault tolerance are mandatory.

Availability

IRFZ44ESTRRPBF is available at Aetrix Electronics and suitable for DC-DC converters, motor drives, and uninterruptible power supplies requiring stable component supply across multi-year production cycles.

Supply support for IRFZ44ESTRRPBF 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 ICs and discrete devices.

This part belongs to Infineon's legacy HEXFET® Power MOSFET product line, engineered for high-current, high-efficiency switching in power conversion and motor control systems where ruggedness and thermal performance are critical.

FAQ

What is the maximum gate-to-source voltage for IRFZ44ESTRRPBF?

The absolute maximum V_GS is ±20V. Operation above +15V or below –10V risks permanent gate oxide damage. For reliable 10V logic-level drive, use a gate driver with tight voltage regulation and transient suppression, especially in noisy motor drive environments.

Can IRFZ44ESTRRPBF be used in parallel configurations?

Yes - its positive temperature coefficient of R_DS(on) (normalized resistance increases with junction temperature) enables inherent current sharing. Use matched gate resistors (≤1Ω difference), symmetrical PCB layout, and shared thermal plane to ensure balanced conduction between paralleled devices.

Is the D2PAK package lead-free and RoHS compliant?

Yes - the "PbF" suffix confirms full compliance with EU RoHS Directive 2011/65/EU and exemption-free lead-free plating. The device meets J-STD-020 moisture sensitivity level 3 and supports standard reflow profiles up to 260°C peak.

What is the typical reverse recovery time of the body diode?

The body diode's reverse recovery time (t_rr) is 69ns (typical) and 104ns (max) at T_J = 25°C, I_F = 29A, and di/dt = 100A/µs. This enables use in moderate-frequency freewheeling paths but requires careful layout to minimize dv/dt-induced shoot-through in synchronous rectifiers.

IRFZ44ESTRRPBF 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):: 60 V

Current - Continuous Drain (Id) @ 25°C:: 48A (Tc)

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

Rds On (Max) @ Id, Vgs:: 23mOhm @ 29A, 10V

Vgs(th) (Max) @ Id:: 4V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 60 nC @ 10 V

Vgs (Max):: ±20V

Input Capacitance (Ciss) (Max) @ Vds:: 1360 pF @ 25 V

FET Feature:: -

Power Dissipation (Max):: 110W (Tc)

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: D2PAK

IRFZ44ESTRRPBF FAQ

1.How can I place an order for IRFZ44ESTRRPBF through Aetrix?

Please submit a Request for Quotation (RFQ) for IRFZ44ESTRRPBF 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 IRFZ44ESTRRPBF reliable?

The price and inventory of IRFZ44ESTRRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IRFZ44ESTRRPBF is usually 5 days.

3.What payment methods are accepted for IRFZ44ESTRRPBF?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IRFZ44ESTRRPBF transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for IRFZ44ESTRRPBF?

IRFZ44ESTRRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your IRFZ44ESTRRPBF 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 IRFZ44ESTRRPBF?

For technical support, including IRFZ44ESTRRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IRFZ44ESTRRPBF requirements.

6.How does Aetrix verify that IRFZ44ESTRRPBF is sourced from the original manufacturer or authorized distributors?

All IRFZ44ESTRRPBF 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 IRFZ44ESTRRPBF meets industry standards.

7.What is the process for return or replacement of IRFZ44ESTRRPBF?

All IRFZ44ESTRRPBF units undergo pre-shipment inspection (PSI). If there is an issue with IRFZ44ESTRRPBF, 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 IRFZ44ESTRRPBF part is unused and in its original packaging.

Return procedure for IRFZ44ESTRRPBF:

1.Submit a request within 90 days.

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

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