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Home > Products > Discrete Semiconductor Products > Transistors > FETs, MOSFETs > FET, MOSFET Arrays

STMicroelectronics STL8DN6LF3

Name: STL8DN6LF3
Brand: STMicroelectronics
SKU: STL8DN6LF3
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STL8DN6LF3

Manufacturer:: STMicroelectronics

Category:: FET, MOSFET Arrays

Package:: 8-PowerVDFN

Datasheet:: STL8DN6LF3.pdf

Description:: MOSFET 2N-CH 60V 20A POWERFLAT

Quantity:: RFQ Add To RFQ list

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Inventory:20,991

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Product details

Overview

STL8DN6LF3 from STMicroelectronics is an AEC-Q101 qualified N-channel Power MOSFET in PowerFLAT 5x6 double island package, featuring 60 V V_DS, 22.5 mΩ typ. R_DS(on) at V_GS = 10 V, 7.8 A continuous drain current at T_pcb = 25 °C, and 175 °C maximum junction temperature. It serves as a high-efficiency, logic-level switching device in automotive power distribution modules.

For engineers reviewing the STL8DN6LF3 datasheet, STL8DN6LF3 pinout, STL8DN6LF3 application, or STL8DN6LF3 equivalent, key selection criteria include its wettable flank package for automated optical inspection, 100% unclamped avalanche rating (E_AS = 190 mJ), and dual-island thermal layout enabling enhanced PCB heat spreading in space-constrained automotive ECUs.

Technical Context

This MOSFET employs ST's proprietary STripFET F3 process to simultaneously minimize R_DS(on) and gate charge (Q_g = 13 nC), delivering low conduction and switching losses. Its logic-level V_GS(th) (1–2.5 V) ensures full enhancement with standard 3.3 V or 5 V microcontroller GPIOs.

The PowerFLAT 5x6 double island package integrates separate source and drain copper islands on the bottom side, enabling direct thermal coupling to PCB copper planes while maintaining electrical isolation between source and drain terminals - critical for high-current, low-inductance automotive load switch designs.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	60 V - supports 48 V automotive systems with 20 % margin against transients per ISO 7637-2.
R_DS(on) max	30 mΩ at V_GS = 10 V, I_D = 4 A - enables ≤2.4 W conduction loss at 8 A DC load.
I_D (T_pcb = 25 °C)	7.8 A - rated for sustained current on 1 in² 2 oz Cu PCB without forced airflow.
E_AS	190 mJ - guarantees robustness against inductive turn-off energy in solenoid/relay drivers.
T_J max	175 °C - meets under-hood temperature requirements for engine control and transmission modules.
Q_g	13 nC - reduces gate drive power and enables fast switching (t_d(off) = 32.5 ns) with low-R_G drivers.
C_iss	668 pF - limits Miller-induced shoot-through risk in half-bridge configurations.

Pinout & Package

STL8DN6LF3 uses the PowerFLAT 5x6 double island WF type R package (JEDEC MO-263 variant), with exposed drain (rear-side) and source (front-side) terminals electrically isolated on separate copper islands. The package features wettable flanks for solder joint inspection.

Pin/Terminal	Circuit Role	Design Meaning
Drain (rear-side copper pad)	Main current path output	Direct thermal interface to PCB ground plane; handles full load current and dissipates >90 % of power loss.
Source (front-side pin 1–3)	Reference node for gate drive and current sensing	Low-inductance connection to source return path; enables accurate high-side current monitoring via Kelvin sense.
Gate (front-side pin 4)	Control input	Logic-compatible input requiring ≤2.5 V threshold; driven directly by MCU GPIO without level shifter.

Key Features

Feature	Design Value
AEC-Q101 qualification	Validated for automotive applications including temperature cycling, HTRB, and ESD testing per stress test plan.
Wettable flank package	Enables automated optical inspection (AOI) of solder fillets on all four side edges - critical for zero-defect automotive manufacturing.
100 % avalanche rated	Guaranteed single-pulse ruggedness up to 190 mJ without degradation - eliminates need for external snubbers in inductive loads.
Double island thermal layout	Separates source and drain copper islands to maximize PCB copper area utilization for heat spreading while maintaining isolation.
Logic-level V_GS(th)	1–2.5 V threshold ensures reliable turn-on with 3.3 V microcontrollers - reduces BOM count vs. gate driver ICs.

Applications

Body Control Module Load Switch

Automotive HVAC Blower Driver

Use Scenario: Controlling 12 V/24 V resistive and inductive loads (e.g., door locks, window lifts) in centralized body control units.

IC Role / Device Role / Timing Role: High-side load switch with integrated overcurrent and thermal protection via external controller feedback.

Use Value: 7.8 A continuous rating and 31.2 A pulsed capability support peak motor startup currents; wettable flanks ensure AOI-compliant assembly in Tier-1 production lines.

Use Scenario: PWM-driven DC blower motor in climate control systems requiring variable speed and reverse polarity protection.

IC Role / Device Role / Timing Role: Low-side switching element in half-bridge configuration with freewheeling diode conduction during off-time.

Use Value: 1.3 V V_SD forward voltage at 7.8 A minimizes conduction loss in diode mode; 30 ns t_rr reduces switching loss during commutation.

Engine Management Injector Driver

Electric Power Steering (EPS) Motor Phase Switch

Use Scenario: Driving 12 V fuel injectors with precise pulse-width modulation for stoichiometric air-fuel ratio control.

IC Role / Device Role / Timing Role: Fast-switching low-side switch with <32.5 ns turn-off delay to support sub-millisecond injection timing resolution.

Use Value: 13 nC Q_g and 30 ns t_f enable clean, jitter-free current pulses; 175 °C T_J max sustains operation near hot engine blocks.

Use Scenario: Half-bridge phase leg in 48 V EPS motor inverters requiring high reliability and thermal resilience.

IC Role / Device Role / Timing Role: N-channel power switch in three-phase inverter topology, paired with complementary high-side driver.

Use Value: Double-island package allows independent thermal management of source and drain paths; 22.5 mΩ R_DS(on) limits I²R loss at 10 A RMS phase current.

Equivalent & Alternatives

The following parts are listed as comparable options for similar N-channel automotive MOSFET applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
Infineon BSC014N06LS3	60 V, 1.4 mΩ R_DS(on), PG-TSDSON-8 package (single island), no wettable flanks	Higher current density but requires X-ray inspection; lacks AOI support for front-end SMT lines	Select when board space is constrained and AOI is not mandated; verify thermal derating on same PCB layout.
ON Semiconductor NTMFS5C673NL	60 V, 3.2 mΩ R_DS(on), PowerTrench® 5x6 with wettable flanks, but only single island	Lower R_DS(on) improves efficiency, yet thermal resistance junction-to-PCB is 42 °C/W vs. STL8DN6LF3's 35 °C/W	Prefer for ultra-low-loss designs where thermal budget allows higher R_th(j-pcb); confirm layout compatibility with single-island footprint.

Compared with BSC014N06LS3 and NTMFS5C673NL, STL8DN6LF3 uniquely combines wettable flanks, double-island thermal architecture, and AEC-Q101 validation - making it optimal for safety-critical, AOI-governed automotive modules where manufacturability and thermal reliability are co-prioritized.

Availability

STL8DN6LF3 is available at Aetrix Electronics and suitable for automotive body control modules, HVAC blower drivers, and engine management injector circuits requiring stable component supply across multi-year vehicle production cycles.

Supply support for STL8DN6LF3 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

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, specializing in automotive, industrial, and power discrete technologies with vertical manufacturing capabilities.

The STL8DN6LF3 belongs to ST's STripFET F3 automotive power MOSFET product line, engineered specifically for high-reliability, thermally demanding automotive subsystems operating up to 175 °C junction temperature.

FAQ

What is the maximum continuous drain current for STL8DN6LF3 under real-world PCB conditions?

The datasheet specifies 7.8 A continuous drain current (I_D) at T_pcb = 25 °C on a 1 inch², 2 oz copper PCB. This value drops to 5.5 A at T_pcb = 100 °C. Derating must follow the SOA curve in Figure 1, which accounts for pulse duration and thermal impedance limitations.

Does STL8DN6LF3 require a gate resistor for safe operation in automotive PWM applications?

Yes - a gate resistor (e.g., 4.7 Ω as used in the datasheet's switching time tests) is recommended to control dV/dt, suppress ringing, and limit peak gate current. The intrinsic gate resistance is 4 Ω, so external series resistance ensures robust EMI performance and prevents driver overstress during fast transitions.

How does the double island package improve thermal performance compared to standard PowerFLAT 5x6?

The double island layout separates source and drain copper pads on the rear side, allowing independent thermal vias and copper pours for each terminal. This reduces effective R_th(j-pcb) to 35 °C/W (vs. ~42 °C/W in single-island variants) and avoids thermal crosstalk between high-current paths in multi-MOSFET layouts.

Can STL8DN6LF3 be used in synchronous rectification topologies?

No - STL8DN6LF3 is optimized as a controlled switch, not a synchronous rectifier. Its body diode has 1.3 V forward voltage and 30 ns reverse recovery time, which is acceptable for freewheeling but insufficient for high-frequency synchronous rectification where low V_F and sub-10 ns t_rr are required. Use dedicated SR controllers with optimized diodes instead.

STL8DN6LF3 Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: STripFET™ III

Package/Case:: 8-PowerVDFN

Packaging:: Tape & Reel (TR)

Product Status:: Active

Technology:: MOSFET (Metal Oxide)

Configuration:: 2 N-Channel (Dual)

FET Feature:: Logic Level Gate

Drain to Source Voltage (Vdss):: 60V

Current - Continuous Drain (Id) @ 25°C:: 20A

Rds On (Max) @ Id, Vgs:: 30mOhm @ 4A, 10V

Vgs(th) (Max) @ Id:: 2.5V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 13nC @ 10V

Input Capacitance (Ciss) (Max) @ Vds:: 668pF @ 25V

Power - Max:: 65W

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

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: PowerFlat™ (5x6)

STL8DN6LF3 FAQ

1.How can I place an order for STL8DN6LF3 through Aetrix?

Please submit a Request for Quotation (RFQ) for STL8DN6LF3 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 STL8DN6LF3 reliable?

The price and inventory of STL8DN6LF3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STL8DN6LF3 is usually 5 days.

3.What payment methods are accepted for STL8DN6LF3?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STL8DN6LF3 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STL8DN6LF3?

STL8DN6LF3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STL8DN6LF3 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 STL8DN6LF3?

For technical support, including STL8DN6LF3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STL8DN6LF3 requirements.

6.How does Aetrix verify that STL8DN6LF3 is sourced from the original manufacturer or authorized distributors?

All STL8DN6LF3 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 STL8DN6LF3 meets industry standards.

7.What is the process for return or replacement of STL8DN6LF3?

All STL8DN6LF3 units undergo pre-shipment inspection (PSI). If there is an issue with STL8DN6LF3, 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 STL8DN6LF3 part is unused and in its original packaging.

Return procedure for STL8DN6LF3:

1.Submit a request within 90 days.

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

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