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

STMicroelectronics STD17NF03L-1

Name: STD17NF03L-1
Brand: STMicroelectronics
SKU: STD17NF03L-1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STD17NF03L-1

Manufacturer:: STMicroelectronics

Category:: FETs, MOSFETs

Package:: TO-251-3 Short Leads, IPAK, TO-251AA

Datasheet:: STD17NF03L-1.pdf

Description:: MOSFET N-CH 30V 17A IPAK

Quantity:: RFQ Add To RFQ list

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Product details

Overview

STD17NF03L-1 from STMicroelectronics is an N-channel 30V Power MOSFET in IPAK (TO-251) package, optimized for high-efficiency switching with R_DS(on) ≤ 0.05 Ω at V_GS = 10 V, 17 A continuous drain current at T_C = 25°C, and 100% avalanche tested for ruggedness-used in DC-DC converters, motor drivers, and power supply OR-ing circuits.

For engineers reviewing the STD17NF03L-1 datasheet, STD17NF03L-1 pinout, STD17NF03L-1 application, or STD17NF03L-1 equivalent, key selection criteria include its low gate charge (4.8 nC), exceptional dv/dt capability (7 V/ns), thermal resistance (R_thj-case = 5.0 °C/W), and verified unclamped inductive switching performance.

Technical Context

This STripFET™ II MOSFET employs a single-feature-size strip-based process to achieve high cell density and low on-resistance while maintaining robust avalanche energy rating (E_AS = 200 mJ). Its gate threshold voltage (1.0–2.2 V) enables reliable 5 V logic-level drive, and source-drain diode recovery is characterized with t_rr = 28 ns and Q_rr = 18 nC under defined inductive conditions.

The device is rated for operation up to T_j = 175°C, features ±16 V gate-source voltage tolerance, and delivers stable R_DS(on) over temperature (normalized to 1.5× at 125°C). Its safe operating area (SOA) is validated for pulse widths up to 10 ms at 17 A and 30 V.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	30 V - Maximum blocking voltage compatible with 24 V industrial bus systems and automotive 12 V/24 V architectures.
R_DS(on)	≤0.05 Ω @ V_GS = 10 V - Enables <1 W conduction loss at 17 A, critical for thermally constrained PCB layouts.
I_D (cont)	17 A @ T_C = 25°C - Supports high-current load switching without external heatsinking in moderate-duty cycles.
E_AS	200 mJ - Confirmed single-pulse avalanche energy ensures reliability during inductive turn-off transients.
Q_g	4.8 nC - Low total gate charge reduces driver power demand and switching losses in high-frequency SMPS.
dv/dt	7 V/ns - High immunity to parasitic turn-on in noisy environments such as motor drives and solenoid control.
R_thj-case	5.0 °C/W - Allows direct mounting to metal-core PCBs or small heatsinks for thermal management in space-constrained designs.

Pinout & Package

STD17NF03L-1 uses the TO-251 (IPAK) package: a 3-pin, surface-mount variant of TO-252 with isolated tab (drain-connected), no exposed metal pad, and lead-free ECOPACK® compliance.

Pin/Terminal	Circuit Role	Design Meaning
1 (Source)	Source terminal	Low-side return path; electrically tied to PCB ground plane for minimal loop inductance in switching nodes.
2 (Gate)	Control input	High-impedance MOSFET gate requiring <2.25 nC charge to reach threshold; sensitive to ESD and layout-induced ringing.
3 (Drain)	Power output / heat sink interface	Internally connected to molded tab; must be routed to high-current traces and thermally coupled to copper pour or heatsink.

Key Features

Feature	Design Value
STripFET™ II process	Enables 0.038 Ω typical R_DS(on) in IPAK, improving power density vs. first-generation strip FETs by >25%.
100% avalanche tested	Each unit validated for unclamped inductive switching at rated current/voltage, eliminating need for external snubbers in many applications.
Low gate charge at 100°C	Q_g remains stable up to junction temperature of 100°C, ensuring consistent switching timing in thermally stressed environments.
Application-oriented characterization	SOA, diode recovery (t_rr, Q_rr), and dv/dt performance measured under real-world inductive load conditions-not just DC specs.

Applications

DC-DC Converter Primary Switch

Brushed DC Motor Driver (H-Bridge Low-Side)

Use Scenario: Synchronous buck converter operating at 200–500 kHz with 12 V input and 3.3/5 V output for FPGA or microcontroller power rails.

IC Role / Device Role: High-side or low-side power switch handling peak currents up to 17 A with minimal conduction and switching loss.

Use Value: R_DS(on) ≤ 0.05 Ω and Q_g = 4.8 nC enable >92% efficiency at 10 A load while limiting die temperature rise to <45°C above ambient.

Use Scenario: Bidirectional 24 V brushed motor control in industrial actuators, with PWM frequency ≥10 kHz and stall current ≤15 A.

IC Role / Device Role: Low-side switch in H-bridge configuration, sinking motor current during active decay and freewheeling via internal body diode.

Use Value: Verified t_rr = 28 ns and Q_rr = 18 nC reduce shoot-through risk and EMI during commutation, supporting clean PWM edges.

Hot-Swap / OR-ing Controller

Industrial Solenoid / Relay Driver

Use Scenario: Redundant 24 V power supply OR-ing in programmable logic controllers (PLCs), requiring fast fault isolation and low forward drop.

IC Role / Device Role: Back-to-back configured MOSFET acting as ideal diode replacement with controlled turn-on/turn-off.

Use Value: Low V_GS(th) (1.0–2.2 V) allows precise gate control using dedicated OR-ing ICs; R_DS(on) minimizes voltage drop (<0.85 V at 17 A).

Use Scenario: Driving 24 V/12 W solenoids in factory automation I/O modules, with 100 ms ON time and 1 Hz duty cycle.

IC Role / Device Role: Single-ended switch controlling solenoid coil current, absorbing inductive kickback via avalanche-rated drain-source junction.

Use Value: E_AS = 200 mJ eliminates need for external flyback diodes in most cases, reducing BOM count and board area.

Equivalent & Alternatives

The following parts are listed as comparable options for similar N-channel 30 V power MOSFET applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
IRF3708PBF	R_DS(on) = 0.023 Ω @ 10 V but higher Q_g = 22 nC; TO-220 package only.	Requires larger heatsink due to TO-220 thermal resistance; unsuitable for space-constrained SMT designs.	Select when ultra-low R_DS(on) outweighs gate drive complexity and board area constraints.
STP16NF03L	Same V_DS/R_DS(on) spec but DPAK package; lower I_D rating (16 A vs. 17 A); identical STripFET II process.	Compatible footprint for rework but slightly reduced current margin; same SOA and avalanche rating.	Choose for DPAK-compatible layouts where IPAK mechanical fit is unavailable or thermal path differs.

Compared with IRF3708PBF and STP16NF03L, STD17NF03L-1 uniquely balances low gate charge (4.8 nC), IPAK SMT compatibility, and 17 A current rating-making it optimal for compact, high-frequency, thermally sensitive switching where driver efficiency and layout density are prioritized.

Availability

STD17NF03L-1 is available at Aetrix Electronics and suitable for DC-DC converters, motor drivers, hot-swap controllers, and solenoid drivers requiring stable component supply across industrial OEM production programs.

Supply support for STD17NF03L-1 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 analog, MCU, power, and sensor solutions for industrial, automotive, and consumer markets.

STD17NF03L-1 belongs to ST's STripFET™ II Power MOSFET product line, engineered specifically for high-efficiency, high-reliability switching in space- and thermally-constrained industrial power systems.

FAQ

Is STD17NF03L-1 suitable for 5 V logic-level gate drive?

Yes. With a gate threshold voltage range of 1.0–2.2 V and guaranteed R_DS(on) ≤ 0.05 Ω at V_GS = 5 V (0.045–0.06 Ω), it fully supports direct drive from standard 5 V microcontrollers and gate drivers without level-shifting circuitry.

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

The datasheet specifies I_D = 12 A continuous at T_C = 100°C. This derating reflects thermal limits of the IPAK package (R_thj-case = 5.0 °C/W) and ensures safe operation within the 175°C maximum junction temperature.

Does STD17NF03L-1 have a built-in body diode, and is it optimized for reverse recovery?

Yes. It integrates a fast, avalanche-rated source-drain diode with t_rr = 28 ns and Q_rr = 18 nC at T_j = 150°C, di/dt = 100 A/µs, and V_DD = 15 V-validated for use in synchronous rectification and freewheeling paths without external diodes.

How does STD17NF03L-1 differ from STD17NF03L?

STD17NF03L-1 is the IPAK (TO-251) variant, while STD17NF03L is the DPAK (TO-252) version. Both share identical electrical specs, but differ mechanically: IPAK has a smaller footprint, isolated tab, and different thermal path-requiring distinct PCB land patterns and heatsinking strategies.

STD17NF03L-1 Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: STripFET™ II

Package/Case:: TO-251-3 Short Leads, IPAK, TO-251AA

Packaging:: Tube

Product Status:: Obsolete

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 30 V

Current - Continuous Drain (Id) @ 25°C:: 17A (Tc)

Drive Voltage (Max Rds On, Min Rds On):: 5V, 10V

Rds On (Max) @ Id, Vgs:: 50mOhm @ 8.5A, 10V

Vgs(th) (Max) @ Id:: 2.2V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 6.5 nC @ 5 V

Vgs (Max):: ±16V

Input Capacitance (Ciss) (Max) @ Vds:: 320 pF @ 25 V

FET Feature:: -

Power Dissipation (Max):: 30W (Tc)

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

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TO-251 (IPAK)

STD17NF03L-1 FAQ

1.How can I place an order for STD17NF03L-1 through Aetrix?

Please submit a Request for Quotation (RFQ) for STD17NF03L-1 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 STD17NF03L-1 reliable?

The price and inventory of STD17NF03L-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STD17NF03L-1 is usually 5 days.

3.What payment methods are accepted for STD17NF03L-1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STD17NF03L-1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STD17NF03L-1?

STD17NF03L-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STD17NF03L-1 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 STD17NF03L-1?

For technical support, including STD17NF03L-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STD17NF03L-1 requirements.

6.How does Aetrix verify that STD17NF03L-1 is sourced from the original manufacturer or authorized distributors?

All STD17NF03L-1 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 STD17NF03L-1 meets industry standards.

7.What is the process for return or replacement of STD17NF03L-1?

All STD17NF03L-1 units undergo pre-shipment inspection (PSI). If there is an issue with STD17NF03L-1, 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 STD17NF03L-1 part is unused and in its original packaging.

Return procedure for STD17NF03L-1:

1.Submit a request within 90 days.

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

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