Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

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

STMicroelectronics STL86N3LLH6AG

Name: STL86N3LLH6AG
Brand: STMicroelectronics
SKU: STL86N3LLH6AG
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: STL86N3LLH6AG

Manufacturer:: STMicroelectronics

Category:: FETs, MOSFETs

Package:: 8-PowerVDFN

Datasheet:: STL86N3LLH6AG.pdf

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

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:6,394

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

STL86N3LLH6AG from STMicroelectronics is an automotive-grade N-channel Power MOSFET using STripFET™ H6 trench gate technology, rated for 30 V V_DS, 4 mΩ typ. R_DS(on) at V_GS = 10 V, and 80 A continuous drain current at T_C = 25 °C. It serves as a high-efficiency main power switch in low-voltage DC-DC converters and motor control stages for EV auxiliary systems.

For engineers reviewing the STL86N3LLH6AG datasheet, STL86N3LLH6AG pinout, STL86N3LLH6AG application, or STL86N3LLH6AG equivalent, key selection criteria include its AEC-Q101 qualification, wettable flank PowerFLAT™ 5x6 package for automated optical inspection, logic-level gate drive compatibility (V_GS(th) = 1–2.5 V), and high pulsed current capability (I_DM = 320 A).

Technical Context

This MOSFET employs a refined STripFET™ H6 process with optimized trench gate geometry to minimize both conduction loss (R_DS(on) = 4 mΩ typ.) and switching loss (Q_g = 17 nC typ., Q_gd = 6 nC typ.). Its thermal resistance junction-to-case is 2.08 °C/W, enabling high-power operation with minimal heatsinking when mounted on PCB copper planes.

The device integrates a robust body diode with t_rr = 24 ns and Q_rr = 16.8 nC, supporting fast synchronous rectification and inductive load switching. Gate drive is compatible with 3.3 V and 5 V logic controllers due to its logic-level threshold (V_GS(th) = 1.7 V typ.) and low input capacitance (C_iss = 1690 pF typ.).

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	30 V - Maximum blocking voltage for 12 V/24 V automotive bus systems
R_DS(on) (V_GS = 10 V)	4 mΩ typ. - Enables <1 W conduction loss at 50 A, reducing thermal stress
I_D (continuous, T_C = 25 °C)	80 A - Supports high-current loads such as HVAC blowers and EPS actuators
Q_g	17 nC typ. - Low gate charge reduces driver power loss and enables faster switching
t_rr	24 ns - Minimizes reverse recovery loss in hard-switched buck or half-bridge topologies
AEC-Q101 qualified	Qualified for automotive applications per stress test requirements including HTOL, TC, and UHAST
Package	PowerFLAT™ 5x6 WF - Wettable flank leads enable automated solder joint inspection (AOI)

Pinout & Package

STL86N3LLH6AG uses the PowerFLAT™ 5x6 WF (wettable flank) package, a surface-mount, dual-side thermal enhanced leadframe package with exposed drain pad. Dimensions: 5.0–5.4 mm × 6.2–6.6 mm × 0.8–1.0 mm height. The package supports bottom-side thermal transfer via the large drain paddle and provides AOI-compatible gull-wing flank leads.

Pin/Terminal	Circuit Role	Design Meaning
Drain (D)	Main current path output terminal	Connected to exposed copper paddle - primary thermal and electrical path to PCB ground plane
Source (S)	Current return path and reference node	Three source pins (pins 1, 2, 5) reduce parasitic inductance and improve current sharing
Gate (G)	Control input for channel conduction	Single pin (pin 3) with low C_iss/C_rss for stable high-speed switching

Key Features

Feature	Design Value
Very low R_DS(on)	4 mΩ typ. at V_GS = 10 V - Reduces I²R losses in high-current 12 V/24 V power rails
Logic-level gate drive	V_GS(th) = 1–2.5 V - Directly drivable by MCU GPIOs without level-shifting circuitry
High avalanche ruggedness	Unclamped inductive switching rated - Withstands energy surges during motor commutation or relay bounce
Wettable flank leads	Side-wettable flanks on all source/gate pins - Enables automated optical inspection of solder fillets
Low Q_gd/Q_g ratio	6 nC / 17 nC = 0.35 - Improves Miller immunity and reduces risk of spurious turn-on in half-bridge configurations

Applications

Automotive HVAC Blower Control

12 V DC-DC Converter Primary Switch

Use Scenario: PWM-controlled blower motor in passenger cabin climate system requiring bidirectional airflow and soft-start ramping.

IC Role / Device Role / Timing Role: High-side N-channel power switch operating at 20–50 kHz with synchronous rectification support.

Use Value: Low R_DS(on) minimizes heat generation in confined dash space; AEC-Q101 qualification ensures reliability over 15-year vehicle lifetime.

Use Scenario: Step-down converter supplying 5 V/3.3 V to infotainment and ADAS ECUs from battery rail.

IC Role / Device Role / Timing Role: Primary-side switching transistor in synchronous buck topology with 300–500 kHz switching frequency.

Use Value: Fast t_rr and low Q_rr reduce body-diode conduction loss during dead-time, improving efficiency >92% at full load.

Electric Power Steering (EPS) Motor Driver

Automotive LED Headlamp Dimming Stage

Use Scenario: Half-bridge leg in 3-phase inverter driving brushless EPS assist motor (20–40 A peak).

IC Role / Device Role / Timing Role: Low-side switching element with fast fall time (t_f = 12 ns) and low C_oss for reduced switching loss.

Use Value: High I_DM = 320 A enables safe short-circuit handling during torque transients; wettable flank package supports IPC-A-610 Class 3 assembly verification.

Use Scenario: Constant-current dimming switch for adaptive front-lighting system (AFS) matrix LED arrays.

IC Role / Device Role / Timing Role: PWM-controlled current sink in linear+switching hybrid dimming architecture.

Use Value: Logic-level gate allows direct interface with CAN/LIN microcontroller outputs; low gate charge enables precise 100–1000 Hz dimming resolution without driver overhead.

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
Infineon BSC014N04LS6	R_DS(on) = 1.4 mΩ @ 10 V, V_DS = 40 V, no AEC-Q101 rating	Higher voltage margin but lacks automotive qualification and wettable flank leads	Preferred for industrial 40 V systems where qualification isn't required
ON Semiconductor NTMFS4C09NT1G	R_DS(on) = 4.5 mΩ @ 10 V, V_DS = 30 V, AEC-Q101 qualified, PowerTrench® 5x6	Similar R_DS(on) and qualification, but higher Q_g (22 nC) and no wettable flank	Acceptable for cost-sensitive automotive designs where AOI is not mandated

Compared with BSC014N04LS6 and NTMFS4C09NT1G, STL86N3LLH6AG uniquely combines AEC-Q101 qualification, wettable flank leads for process traceability, and optimized Q_gd/Q_g ratio-making it preferred for safety-critical, high-volume automotive production with automated optical inspection requirements.

Availability

STL86N3LLH6AG is available at Aetrix Electronics and suitable for automotive HVAC control, 12 V DC-DC conversion, and electric power steering systems requiring stable component supply across multi-year vehicle programs.

Supply support for STL86N3LLH6AG 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, designing and manufacturing analog, digital, and mixed-signal ICs for automotive, industrial, and consumer markets.

This device belongs to ST's STripFET™ H6 automotive power MOSFET product line, engineered specifically for high-current, low-voltage switching in engine control units, body electronics, and ADAS subsystems where reliability and thermal performance are critical.

FAQ

What is the maximum continuous drain current at PCB temperature of 70 °C?

The STL86N3LLH6AG supports 15.7 A continuous drain current when mounted on a standard FR-4 PCB (1 inch², 2 oz Cu) at T_pcb = 70 °C, based on its R_thj-pcb = 31.3 °C/W rating. This value reflects real-world board-level thermal limits-not case temperature derating-and is validated per JEDEC JESD51-2.

Does this MOSFET require a gate resistor for stability in high-frequency switching?

A gate resistor of 4.7 Ω is used in the official switching time test circuit (Figure 13) to achieve controlled turn-on/turn-off behavior. While not strictly mandatory, a 2–10 Ω series gate resistor is recommended to dampen ringing caused by PCB trace inductance and prevent unintended oscillation at >300 kHz operation.

Can STL86N3LLH6AG be used in synchronous rectification mode?

Yes-the integrated body diode has t_rr = 24 ns and Q_rr = 16.8 nC, enabling efficient synchronous rectification in buck or flyback topologies up to 500 kHz. Its low forward voltage (V_SD = 1.1 V at 21 A) further reduces conduction loss compared to external Schottky diodes.

Is the PowerFLAT™ 5x6 WF package compatible with standard reflow profiles?

Yes-the PowerFLAT™ 5x6 WF package is qualified for standard lead-free reflow per J-STD-020, with peak temperature up to 260 °C. Its wettable flank design does not alter thermal mass or profile requirements; standard Type 3 or Type 4 solder paste and 60–90 sec above 217 °C are sufficient for reliable void-free solder joints.

STL86N3LLH6AG Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: STripFET™ H6

Package/Case:: 8-PowerVDFN

Packaging:: Tape & Reel (TR)

Product Status:: Active

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 30 V

Current - Continuous Drain (Id) @ 25°C:: 80A (Tc)

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

Rds On (Max) @ Id, Vgs:: 5.2mOhm @ 10.5A, 10V

Vgs(th) (Max) @ Id:: 2.5V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 17 nC @ 4.5 V

Vgs (Max):: ±20V

Input Capacitance (Ciss) (Max) @ Vds:: 2030 pF @ 25 V

FET Feature:: -

Power Dissipation (Max):: 4W (Ta), 60W (Tc)

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

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: PowerFlat™ (5x6)

STL86N3LLH6AG FAQ

1.How can I place an order for STL86N3LLH6AG through Aetrix?

Please submit a Request for Quotation (RFQ) for STL86N3LLH6AG 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 STL86N3LLH6AG reliable?

The price and inventory of STL86N3LLH6AG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STL86N3LLH6AG is usually 5 days.

3.What payment methods are accepted for STL86N3LLH6AG?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STL86N3LLH6AG transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STL86N3LLH6AG?

STL86N3LLH6AG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STL86N3LLH6AG 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 STL86N3LLH6AG?

For technical support, including STL86N3LLH6AG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STL86N3LLH6AG requirements.

6.How does Aetrix verify that STL86N3LLH6AG is sourced from the original manufacturer or authorized distributors?

All STL86N3LLH6AG 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 STL86N3LLH6AG meets industry standards.

7.What is the process for return or replacement of STL86N3LLH6AG?

All STL86N3LLH6AG units undergo pre-shipment inspection (PSI). If there is an issue with STL86N3LLH6AG, 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 STL86N3LLH6AG part is unused and in its original packaging.

Return procedure for STL86N3LLH6AG:

1.Submit a request within 90 days.

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

Tech Hub

2026-09-03 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…

2026-09-01 74HC595 Pinout, Timing, Output Current, and Applications

The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…

2026-08-21 What Is an LED Driver? Types, Circuits, Dimming, and Selection

An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…

2026-08-18 Operational Amplifier (Op Amp): Basics, Configurations, Feedback and Applications

Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…

2026-08-14 Jumper Cables: How to Use, Connect and Choose Them Safely

Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…