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

Infineon Technologies IRLH7134TRPBF

Name: IRLH7134TRPBF
Brand: Infineon Technologies
SKU: IRLH7134TRPBF
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: IRLH7134TRPBF

Manufacturer:: Infineon Technologies

Category:: FETs, MOSFETs

Package:: 8-PowerTDFN

Datasheet:: IRLH7134TRPBF.pdf

Description:: MOSFET N-CH 40V 26A/85A 8PQFN

Quantity:: RFQ Add To RFQ list

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Product details

Overview

IRLH7134TRPBF from Infineon Technologies is a 40 V, 50 A (case temperature 25°C), low-profile PQFN 5×6 mm N-channel HEXFET® Power MOSFET optimized for high-efficiency synchronous rectification and DC-DC conversion. It delivers R_DS(on) = 2.8 mΩ (typ) at V_GS = 10 V and 3.9 mΩ (max) at V_GS = 4.5 V, with Q_g = 39 nC (typ), enabling fast switching and low conduction loss in compact power stages.

For engineers reviewing the IRLH7134TRPBF datasheet, IRLH7134TRPBF pinout, IRLH7134TRPBF application, or IRLH7134TRPBF equivalent, key selection criteria include its 1.2°C/W junction-to-case (bottom) thermal resistance, MSL1 industrial qualification, RoHS-compliant PQFN package, and verified performance in secondary-side synchronous rectifiers operating at ≤40 V bus voltage.

Technical Context

This MOSFET employs trench-gate silicon technology to achieve ultra-low R_DS(on) while maintaining robust avalanche capability (E_AS = 125 mJ) and fast body diode recovery (t_rr = 25–38 ns). Its gate threshold voltage (V_GS(th) = 1.0–2.5 V) supports 4.5 V logic-level drive compatibility.

The device features dual thermal paths: low R_θJC(bottom) = 1.2°C/W to PCB and higher R_θJC(top) = 30°C/W, requiring bottom-side copper thermal vias for optimal power dissipation. Its 0.9 mm profile enables high-power-density board layouts in space-constrained DC-DC bricks and motor inverters.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	40 V - Maximum drain-source blocking voltage for ≤40 V input/output rail applications
R_DS(on) @ V_GS = 10 V	2.8 mΩ (typ), 3.3 mΩ (max) - Enables <1.5 W conduction loss at 50 A continuous current
R_DS(on) @ V_GS = 4.5 V	3.9 mΩ (max) - Ensures full enhancement with standard 5 V logic drivers
Q_g	39 nC (typ) - Supports efficient 500 kHz–1 MHz switching with moderate gate driver strength
I_D @ T_C = 25°C	50 A - Continuous drain current rating under ideal PCB thermal management
R_θJC (bottom)	1.2°C/W - Requires ≥4 thermal vias under exposed pad for safe 104 W power dissipation
t_rr	25–38 ns - Minimizes reverse-recovery losses in synchronous rectifier operation

Pinout & Package

PQFN 5×6 mm package with exposed thermal pad (pin 1 identifier marked), 3-terminal configuration (Drain, Source, Gate), MSL1 moisture sensitivity level, and industrial temperature qualification (−55°C to +150°C).

Pin/Terminal	Circuit Role	Design Meaning
Drain (D)	Main current-carrying terminal (connected to internal die backside)	Exposed copper pad on bottom surface - must be soldered to large PCB copper area for thermal conduction
Source (S)	Reference node for gate drive and current return path	Connected to 3 top-side pins (pins 1, 2, 3 per outline "E") - low-inductance source connection critical for switching stability
Gate (G)	Control terminal for channel modulation	Single top-side pin (pin 4 per outline "E") - requires low-impedance gate loop to minimize ringing during 50 A switching

Key Features

Feature	Design Value
Low R_DS(on) @ 4.5 V	≤4.9 mΩ max - Eliminates need for gate boosters in 5 V control systems
Junction-to-case thermal resistance (bottom)	1.2°C/W - Enables >100 W power handling with 4-layer PCB and 8 thermal vias
Low profile	0.9 mm height - Fits under 1 mm height constraints in slim DC-DC modules
Industry-standard pinout	Compatible with PQFN 5×6 footprints used by competing 40 V MOSFETs - no layout redesign needed
RoHS & halogen-free	No lead, bromide, or halogen - meets IPC-1752A environmental compliance requirements

Applications

Secondary Side Synchronous Rectification

Inverter for DC Motors

Use Scenario: High-frequency flyback or LLC resonant converter output stage operating at 100–500 kHz with 12–24 V output.

IC Role / Device Role / Timing Role: Low-side synchronous rectifier replacing Schottky diode to reduce forward voltage drop and improve efficiency.

Use Value: Achieves >96% efficiency at 20 A load due to 2.8 mΩ R_DS(on) and 25 ns t_rr, cutting conduction loss by 65% vs. 40 V/100 A Schottky.

Use Scenario: H-bridge motor driver for 24–40 V brushed DC motors in industrial automation equipment.

IC Role / Device Role / Timing Role: High-current half-bridge low-side switch controlling motor direction and PWM speed regulation.

Use Value: Handles 50 A continuous current with <1.2°C/W thermal resistance, enabling 100% duty cycle operation without forced air cooling.

DC-DC Brick Applications

Boost Converters

Use Scenario: Input-stage switch in isolated 48 V–12 V intermediate bus converter housed in 23×23 mm brick format.

IC Role / Device Role / Timing Role: Primary-side high-side or secondary-side low-side switch in fixed-frequency hard-switched topology.

Use Value: 0.9 mm profile allows stacking with magnetics and capacitors within 10 mm total height; 39 nC Q_g enables clean 300 kHz switching with 2 A gate driver.

Use Scenario: Step-up converter boosting 12 V battery supply to 24–40 V for LED drivers or sensor bias rails.

IC Role / Device Role / Timing Role: Main power switch in non-isolated boost topology with continuous conduction mode.

Use Value: Low 3.9 mΩ R_DS(on) at 4.5 V gate drive reduces dropout at 15 A peak current, sustaining >92% efficiency across 5–15 A load range.

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
IRFH7134TRPBF	Same die, identical R_DS(on), Q_g, and thermal specs; rebranded part after Infineon acquisition of IR	No functional difference - direct replacement with same footprint and marking	Select when sourcing from legacy IR inventory or distributor stock labeled IRFH7134
SiR870DP-T1-GE3	Higher R_DS(on) = 4.0 mΩ @ 10 V; lower Q_g = 32 nC; same PQFN 5×6 package	Better switching loss trade-off but 20% higher conduction loss at 50 A	Prefer for >1 MHz switching where gate charge dominates loss budget

Compared with IRLH7134TRPBF, IRFH7134TRPBF offers identical electrical and thermal behavior as a rebranded variant, while SiR870DP-T1-GE3 trades 0.7 mΩ higher R_DS(on) for 7 nC lower Q_g, shifting loss balance toward high-frequency operation at reduced current density.

Availability

IRLH7134TRPBF is available at Aetrix Electronics and suitable for secondary side synchronous rectification, DC-DC brick applications, and boost converters requiring stable component supply, long-term lifecycle support, and MSL1 industrial-grade reliability.

Supply support for IRLH7134TRPBF 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, and industrial control ICs and discrete devices, with global manufacturing and quality certification to ISO/TS 16949 and IECQ QC 080000.

This part belongs to Infineon's OptiMOS™ 5 family of low-voltage power MOSFETs, engineered specifically for high-current, high-efficiency DC-DC conversion and motor control where low R_DS(on) and fast switching are critical.

FAQ

What is the maximum continuous drain current for IRLH7134TRPBF at 100°C case temperature?

The maximum continuous drain current is 85 A at T_C = 100°C and V_GS = 10 V, as specified in the Absolute Maximum Ratings table. This value reflects thermal derating from the 134 A rating at 25°C case temperature, based on a linear derating factor of 0.029 W/°C and the device's 104 W power dissipation limit at T_C = 25°C.

Does IRLH7134TRPBF require a gate resistor for stable switching?

Yes - a gate resistor between 1.0 Ω and 2.2 Ω is recommended to dampen ringing caused by the 39 nC gate charge interacting with PCB trace inductance. The datasheet specifies t_d(on) = 21 ns and t_f = 13 ns with R_G = 1.7 Ω, confirming that uncontrolled gate drive can cause overshoot exceeding ±16 V absolute maximum ratings.

Can IRLH7134TRPBF be used in avalanche-mode operation?

Yes - it is rated for single-pulse avalanche energy E_AS = 125 mJ at I_AR = 50 A, validated per JEDEC JESD24-11. This capability supports unclamped inductive switching in motor drives and relay drivers, but repetitive avalanche is not guaranteed and requires careful thermal analysis per Figure 13 in the datasheet.

Is the PQFN 5×6 mm package of IRLH7134TRPBF compatible with standard reflow profiles?

Yes - as an MSL1 device, it supports industry-standard lead-free reflow profiles (J-STD-020), including peak temperatures up to 260°C for ≤60 seconds. The exposed thermal pad requires stencil-defined solder paste coverage ≥80% and ≥4 thermal vias filled with solder to ensure mechanical integrity and thermal performance.

IRLH7134TRPBF Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: HEXFET®

Package/Case:: 8-PowerTDFN

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 40 V

Current - Continuous Drain (Id) @ 25°C:: 26A (Ta), 85A (Tc)

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

Rds On (Max) @ Id, Vgs:: 3.3mOhm @ 50A, 10V

Vgs(th) (Max) @ Id:: 2.5V @ 100µA

Gate Charge (Qg) (Max) @ Vgs:: 58 nC @ 4.5 V

Vgs (Max):: ±16V

Input Capacitance (Ciss) (Max) @ Vds:: 3720 pF @ 25 V

FET Feature:: -

Power Dissipation (Max):: 3.6W (Ta), 104W (Tc)

Operating Temperature:: -55°C ~ 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 8-PQFN (5x6)

IRLH7134TRPBF FAQ

1.How can I place an order for IRLH7134TRPBF through Aetrix?

Please submit a Request for Quotation (RFQ) for IRLH7134TRPBF 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 IRLH7134TRPBF reliable?

The price and inventory of IRLH7134TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IRLH7134TRPBF is usually 5 days.

3.What payment methods are accepted for IRLH7134TRPBF?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IRLH7134TRPBF transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for IRLH7134TRPBF?

IRLH7134TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your IRLH7134TRPBF 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 IRLH7134TRPBF?

For technical support, including IRLH7134TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IRLH7134TRPBF requirements.

6.How does Aetrix verify that IRLH7134TRPBF is sourced from the original manufacturer or authorized distributors?

All IRLH7134TRPBF 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 IRLH7134TRPBF meets industry standards.

7.What is the process for return or replacement of IRLH7134TRPBF?

All IRLH7134TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with IRLH7134TRPBF, 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 IRLH7134TRPBF part is unused and in its original packaging.

Return procedure for IRLH7134TRPBF:

1.Submit a request within 90 days.

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

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