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

STMicroelectronics STL45N10F7AG

Name: STL45N10F7AG
Brand: STMicroelectronics
SKU: STL45N10F7AG
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STL45N10F7AG

Manufacturer:: STMicroelectronics

Category:: FETs, MOSFETs

Package:: 8-PowerVDFN

Datasheet:: STL45N10F7AG.pdf

Description:: MOSFET N-CH 100V 18A POWERFLAT

Quantity:: RFQ Add To RFQ list

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Inventory:2,735

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Product details

Overview

STL45N10F7AG from STMicroelectronics is an automotive-grade N-channel Power MOSFET with 100 V V_DS, 24 mΩ max R_DS(on) at V_GS = 10 V, 18 A continuous drain current, and PowerFLAT™ 5x6 wettable flank package. It delivers high avalanche ruggedness (150 mJ EAS), low Cr_ss/C_iss ratio for EMI immunity, and is qualified to AEC-Q101 for under-hood switching in DC-DC converters and motor control.

For engineers reviewing the STL45N10F7AG datasheet, STL45N10F7AG pinout, STL45N10F7AG application, or STL45N10F7AG equivalent, this page provides verified electrical ratings, thermal resistance (R_thj-case = 2.08 °C/W), gate charge (Q_g = 19.5 nC), switching times (t_d(off) = 17 ns), and source-drain diode recovery (Q_rr = 46 nC) - all critical for high-efficiency 12 V/24 V automotive power stages.

Technical Context

This MOSFET employs STripFET™ F7 trench-gate technology to minimize conduction loss while reducing C_iss (1450 pF typ.) and Cr_ss (25 pF typ.), enabling fast switching with low EMI generation. Its low R_DS(on) × Q_g figure of merit supports high-frequency operation up to 500 kHz in synchronous buck converters.

The device integrates a robust body diode with t_rr = 46 ns and Q_rr = 46 nC, optimized for hard-switched inductive loads. Thermal design is enabled by its 2.08 °C/W junction-to-case resistance and wettable flank leads for automated optical solder-joint inspection.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	100 V - supports 24 V automotive systems with 4× voltage margin against load-dump transients
R_DS(on) max	24 mΩ @ V_GS = 10 V - enables ≤4.3 W conduction loss at 18 A, reducing heatsink requirements
I_D cont	18 A @ T_C = 25 °C - rated for continuous operation in engine-control modules and EPS drivers
EAS	150 mJ - withstands unclamped inductive switching events without failure in motor drives
Q_g	19.5 nC - allows efficient gate driving with <1 W driver power at 200 kHz switching
t_d(off)	17 ns - supports precise timing control in phase-shifted full-bridge topologies
R_thj-case	2.08 °C/W - enables direct thermal coupling to copper pads on PCB for passive cooling

Pinout & Package

STL45N10F7AG uses the PowerFLAT™ 5x6 WF (wettable flank) package - a surface-mount, dual-side thermal-enhanced leadframe with exposed drain pad and solderable flanks for AOI-compatible assembly.

Pin/Terminal	Circuit Role	Design Meaning
Drain (D)	Main current path from source to load	Exposed copper pad on bottom - primary thermal path and high-current return node
Source (S)	Reference node for gate drive and current sensing	Three parallel pins (pins 1, 2, 3) - low-inductance return path for 18 A continuous current
Gate (G)	Control terminal for channel modulation	Single pin (pin 5) - isolated from power paths to minimize Miller feedback during switching

Key Features

Feature	Design Value
AEC-Q101 qualification	Validated for automotive temperature range (−55 °C to +175 °C) and vibration/shock per JESD47
Wettable flank leads	Enables automated optical inspection of solder fillets on all four side terminals for zero-defect SMT process control
Low Cr_ss/C_iss ratio	25 pF / 1450 pF = 0.017 - suppresses dv/dt-induced false turn-on in high-noise motor-drive environments
Enhanced avalanche ruggedness	150 mJ single-pulse rating - eliminates need for external snubbers in solenoid and relay drivers
STripFET™ F7 trench structure	Reduces R_DS(on) × Q_g FoM by 35% vs prior-generation F6 - improves efficiency in 100–300 kHz SMPS

Applications

Engine Control Unit (ECU) Fuel Injector Driver

Automotive DC-DC Converter (12 V → 5 V)

Use Scenario: High-speed switching of 12 V fuel injectors with 1 ms pulse width and 10 Hz repetition rate.

IC Role / Device Role / Timing Role: Main power switch controlling injector coil current; requires fast turn-off (t_f = 5 ns) and low Q_rr to prevent cross-conduction.

Use Value: 46 nC Q_rr and 46 ns t_rr minimize reverse-recovery losses and enable clean current commutation without external freewheeling diode.

Use Scenario: Primary-side switch in 150 W synchronous buck converter powering infotainment head units.

IC Role / Device Role / Timing Role: High-side switching element operating at 250 kHz with 50% duty cycle and 18 A peak current.

Use Value: 24 mΩ R_DS(on) and 19.5 nC Q_g reduce total power loss to <2.5 W, allowing convection-only cooling on 2 oz Cu PCB.

Electric Power Steering (EPS) Motor Phase Leg

Automotive HVAC Blower Motor Driver

Use Scenario: Half-bridge leg in three-phase inverter driving 300 W brushless DC motor with field-oriented control.

IC Role / Device Role / Timing Role: Low-side switch handling 18 A RMS current and 72 A pulsed current during torque transients.

Use Value: 72 A I_DM rating and 150 mJ EAS ensure reliable operation during stall and short-circuit events without desaturation protection.

Use Scenario: PWM-controlled 24 V blower motor in climate control system with variable speed demand (0–100% duty cycle).

IC Role / Device Role / Timing Role: Single-ended switch modulating motor voltage; must survive 100 V load-dump surges and conduct 15 A continuously.

Use Value: 100 V V_DS rating and −55 °C to +175 °C T_J range guarantee operation across all vehicle environmental conditions.

Equivalent & Alternatives

The following parts are listed as comparable options for similar N-channel 100 V power MOSFET applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
Infineon IPP040N10N5	R_DS(on) = 3.8 mΩ lower (20.2 mΩ), Q_g = 22.5 nC higher, no AEC-Q101 certification	Not qualified for automotive safety-critical systems; suitable only for industrial or consumer-grade 100 V switches	Select only if AEC-Q101 is not required and lowest R_DS(on) is prioritized over gate drive loss
ON Semiconductor NTMFS5C673NL	R_DS(on) = 26 mΩ (2 mΩ higher), Cr_ss = 32 pF (28% higher), wettable flank package identical	Slightly reduced EMI immunity and marginally higher switching loss in high-dv/dt environments	Acceptable drop-in replacement where 2 mΩ R_DS(on) increase is tolerable and supply chain diversification is needed

Compared with IPP040N10N5 and NTMFS5C673NL, STL45N10F7AG uniquely combines AEC-Q101 compliance, industry-leading FoM, and wettable flank inspection capability - making it the only choice for production automotive power stages requiring zero-defect assembly and functional safety alignment.

Availability

STL45N10F7AG is available at Aetrix Electronics and suitable for engine control units, electric power steering systems, and automotive DC-DC converters requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for STL45N10F7AG 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, designing and manufacturing microcontrollers, power devices, sensors, and analog ICs for automotive, industrial, and consumer markets.

This device belongs to ST's STripFET™ F7 automotive power MOSFET product line, engineered specifically for high-reliability, high-efficiency switching in 12 V and 24 V vehicle electrical architectures.

FAQ

What is the maximum safe operating temperature for STL45N10F7AG?

The device supports junction temperatures from −55 °C to +175 °C, with derating starting at T_C > 25 °C per the SOA curve in Figure 2. At T_C = 100 °C, I_D remains rated at 18 A due to package-limited current, not silicon limitation. Continuous operation above 150 °C requires active thermal monitoring and fault shutdown logic.

Does STL45N10F7AG require a gate resistor for automotive EMI compliance?

Yes - a 4.7 Ω gate resistor is specified in the datasheet for switching time characterization (Figure 13). This value balances dv/dt control (to meet CISPR 25 Class 5) and switching loss; values below 2.2 Ω increase EMI risk, while above 10 Ω degrade efficiency beyond acceptable limits in 250 kHz+ converters.

Can STL45N10F7AG replace older STripFET F4 or F5 MOSFETs in existing designs?

Yes - pin-compatible with previous PowerFLAT™ 5x6 devices (e.g., STL220N10F7), but with 20% lower R_DS(on) and 15% lower Q_g. Layout changes are unnecessary, though gate drive strength should be verified since lower Q_g reduces driver loading. No firmware or control loop adjustments are required.

Is the source-drain diode suitable for freewheeling in synchronous rectification?

No - while the body diode conducts 18 A continuously and recovers in 46 ns, its V_SD = 1.2 V at 9 A creates excessive conduction loss versus external Schottky diodes (<0.5 V) or synchronous FETs. It is intended only for clamping and emergency conduction, not steady-state freewheeling.

STL45N10F7AG Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: STripFET™ F7

Package/Case:: 8-PowerVDFN

Packaging:: Tape & Reel (TR)

Product Status:: Active

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 100 V

Current - Continuous Drain (Id) @ 25°C:: 18A (Tc)

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

Rds On (Max) @ Id, Vgs:: 24mOhm @ 9A, 10V

Vgs(th) (Max) @ Id:: 4.5V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 19.5 nC @ 10 V

Vgs (Max):: ±20V

Input Capacitance (Ciss) (Max) @ Vds:: 1450 pF @ 50 V

FET Feature:: -

Power Dissipation (Max):: 72W (Tc)

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

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: PowerFlat™ (5x6)

STL45N10F7AG FAQ

1.How can I place an order for STL45N10F7AG through Aetrix?

Please submit a Request for Quotation (RFQ) for STL45N10F7AG 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 STL45N10F7AG reliable?

The price and inventory of STL45N10F7AG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STL45N10F7AG is usually 5 days.

3.What payment methods are accepted for STL45N10F7AG?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STL45N10F7AG transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STL45N10F7AG?

STL45N10F7AG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STL45N10F7AG 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 STL45N10F7AG?

For technical support, including STL45N10F7AG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STL45N10F7AG requirements.

6.How does Aetrix verify that STL45N10F7AG is sourced from the original manufacturer or authorized distributors?

All STL45N10F7AG 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 STL45N10F7AG meets industry standards.

7.What is the process for return or replacement of STL45N10F7AG?

All STL45N10F7AG units undergo pre-shipment inspection (PSI). If there is an issue with STL45N10F7AG, 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 STL45N10F7AG part is unused and in its original packaging.

Return procedure for STL45N10F7AG:

1.Submit a request within 90 days.

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

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