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

STMicroelectronics STP22NF03L

Name: STP22NF03L
Brand: STMicroelectronics
SKU: STP22NF03L
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STP22NF03L

Manufacturer:: STMicroelectronics

Category:: FETs, MOSFETs

Package:: TO-220-3

Datasheet:: STP22NF03L.pdf

Description:: MOSFET N-CH 30V 22A TO220AB

Quantity:: RFQ Add To RFQ list

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Inventory:6,717

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Product details

Overview

STP22NF03L from STMicroelectronics is an N-channel enhancement-mode Power MOSFET in TO-220 package, rated for 30 V drain-source voltage, 22 A continuous drain current at 25 °C, and 0.038 Ω typical R_DS(on) at V_GS = 10 V. It features rugged avalanche capability (200 mJ single-pulse), low gate charge (6.5 nC), and is optimized for high-efficiency DC-DC converters and motor control switches.

For engineers reviewing the STP22NF03L datasheet, STP22NF03L pinout, STP22NF03L application, or STP22NF03L equivalent, key selection criteria include its 3.33 °C/W junction-to-case thermal resistance, 6 V/ns dv/dt rating, 1.5 V source-drain diode forward voltage at 22 A, and verified unclamped inductive switching performance per Figure 17.

Technical Context

This MOSFET employs ST's STripFET™ II "single feature size" strip-based process, enabling high cell density and low on-resistance while maintaining robust safe operating area (SOA) up to 10 ms at 100 °C case temperature. Its gate threshold voltage (1 V min) ensures reliable turn-on with 5 V logic-level drive.

The device is fully characterized for switching applications: it delivers 7 S transconductance at 15 V V_DS/11 A I_D, exhibits 330 pF input capacitance at 25 V, and supports fast switching with 13 ns turn-on delay and 5 ns fall time under 4.7 Ω gate resistance and 15 V V_DD.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	30 V - Maximum blocking voltage in off-state; defines use in ≤24 V nominal systems with margin.
R_DS(on) max	0.05 Ω @ V_GS = 10 V - Limits conduction loss to ≤2.42 W at 22 A, critical for thermal design in TO-220.
I_D (T_C = 25 °C)	22 A - Continuous current rating at heatsink base; derates to 16 A at 100 °C case temperature.
E_AS	200 mJ - Single-pulse avalanche energy; enables robustness against inductive kickback without external snubbers.
Q_g	6.5 nC - Total gate charge; determines gate driver power requirement and switching speed trade-off.
dv/dt	6 V/ns - Peak diode recovery voltage slope; specifies immunity to parasitic turn-on during commutation.
R_thj-case	3.33 °C/W - Junction-to-case thermal resistance; sets minimum heatsink requirement for 45 W P_tot dissipation.

Pinout & Package

TO-220 package with isolated tab (drain-connected), standard 3-pin vertical mounting configuration. Pin 1 = Gate, Pin 2 = Drain (tab), Pin 3 = Source.

Pin/Terminal	Circuit Role	Design Meaning
Pin 1 (Gate)	Control electrode	Receives voltage-controlled signal; 1 V threshold enables 3.3 V/5 V microcontroller drive.
Pin 2 (Drain)	High-side power terminal	Internally connected to metal tab; requires electrical isolation when mounted to heatsink.
Pin 3 (Source)	Reference and return path	Serves as common reference for gate drive and load return; defines local ground for half-bridge topologies.

Key Features

Feature	Design Value
STripFET™ II process	Enables 0.038 Ω R_DS(on) in TO-220 without die size penalty, improving power density vs. prior generations.
100% avalanche tested	Each unit validated for 200 mJ unclamped inductive energy, eliminating need for system-level stress screening.
Low gate charge (6.5 nC)	Reduces gate driver losses and enables >100 kHz switching in SMPS without excessive driver heating.
Application-oriented characterization	Includes SOA curves (Figure 2), diode recovery waveforms (Figure 17), and gate charge plots (Figure 8) for direct circuit design use.
ECOPACK® lead-free packaging	Complies with JEDEC JESD97; second-level interconnect marked on package for RoHS traceability.

Applications

DC-DC Converter Switch

Brushed DC Motor Driver

Use Scenario: High-current buck converter stage in industrial power supplies delivering 12–24 V output at up to 20 A.

IC Role / Device Role / Timing Role: Main synchronous rectifier switch handling high-duty-cycle conduction and fast turn-off transitions.

Use Value: 0.038 Ω R_DS(on) minimizes I²R loss at full load; 6.5 nC Q_g enables efficient 200 kHz operation with low-driver overhead.

Use Scenario: H-bridge half-bridge leg driving 12 V brushed motors in automated gate actuators and HVAC dampers.

IC Role / Device Role / Timing Role: Low-side switching element controlling motor direction and PWM speed regulation.

Use Value: 22 A continuous rating supports stall currents; 200 mJ E_AS withstands back-EMF spikes during abrupt stop commands.

LED Constant-Current Driver

Power ORing Circuit

Use Scenario: High-brightness LED string driver in commercial signage, using linear or buck topology with analog dimming.

IC Role / Device Role / Timing Role: Series pass element regulating current through 10–20 A LED loads with precision feedback.

Use Value: Low R_DS(on) reduces thermal burden on heatsink; 1 V V_GS(th) allows stable biasing with op-amp control loops.

Use Scenario: Redundant 24 V power supply ORing in telecom shelf systems requiring hot-swap and fault isolation.

IC Role / Device Role / Timing Role: Ideal diode replacement in active ORing controller IC interface, conducting only when forward-biased.

Use Value: 1.5 V V_SD at 22 A provides lower forward drop than Schottky alternatives; 30 ns t_rr prevents shoot-through during supply switchover.

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
IRF3205PBF	R_DS(on) = 0.008 Ω (lower), Q_g = 71 nC (higher), TO-220 package	Better conduction loss but slower switching; suited for <50 kHz applications where efficiency dominates switching loss	Select when thermal budget allows larger heatsink and gate drive can support 71 nC charge.
STP16NF06	V_DS = 60 V (higher), R_DS(on) = 0.055 Ω (higher), same TO-220 footprint	Higher voltage margin for 48 V systems; higher R_DS(on) increases conduction loss by ~45 % at 22 A	Choose for 36–48 V battery systems needing headroom beyond 30 V, accepting higher I²R loss.

Compared with IRF3205PBF and STP16NF06, STP22NF03L offers optimal balance of low R_DS(on), moderate Q_g, and 30 V rating-making it ideal for cost-sensitive, space-constrained 12–24 V switching applications where both conduction and switching losses must be minimized.

Availability

STP22NF03L is available at Aetrix Electronics and suitable for DC-DC converters, brushed DC motor drivers, LED constant-current drivers, and power ORing circuits requiring stable component supply and legacy-design continuity.

Supply support for STP22NF03L 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 microcontrollers, power devices, sensors, and analog ICs for industrial, automotive, and consumer markets.

The STripFET™ series targets high-efficiency power conversion, emphasizing low R_DS(on), rugged SOA, and application-ready characterization for power supply, motor control, and lighting designers.

FAQ

Is STP22NF03L suitable for 5 V logic-level gate drive?

Yes. With a gate threshold voltage (V_GS(th)) of 1 V minimum and guaranteed turn-on at V_GS = 5 V, STP22NF03L is fully compatible with standard 5 V microcontroller GPIO outputs. Its 6.5 nC total gate charge ensures fast, low-loss switching without requiring dedicated gate drivers in most medium-frequency applications.

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

The maximum continuous drain current (I_D) at T_C = 100 °C is 16 A, as specified in Table 2 of the datasheet. This derating reflects thermal limits imposed by the 3.33 °C/W junction-to-case resistance and 45 W total power dissipation ceiling at 25 °C ambient.

Does STP22NF03L include integrated protection features like overtemperature shutdown?

No. STP22NF03L is a discrete N-channel MOSFET without built-in thermal shutdown, current limiting, or fault reporting. System-level protection must be implemented externally via gate driver ICs, current-sense resistors, or microcontroller monitoring of temperature and current.

Can STP22NF03L replace STP16NF06 in a 24 V motor control board?

Only if the application operates strictly within 30 V maximum bus voltage. STP22NF03L has lower R_DS(on) (0.038 Ω vs. 0.055 Ω) and higher current rating (22 A vs. 16 A), but its 30 V V_DS rating provides less margin than STP16NF06's 60 V rating-making it unsuitable for transient overvoltage conditions above 30 V in 24 V systems.

STP22NF03L Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: STripFET™ II

Package/Case:: TO-220-3

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:: 22A (Tc)

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

Rds On (Max) @ Id, Vgs:: 50mOhm @ 11A, 10V

Vgs(th) (Max) @ Id:: 1V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 9 nC @ 5 V

Vgs (Max):: ±15V

Input Capacitance (Ciss) (Max) @ Vds:: 330 pF @ 25 V

FET Feature:: -

Power Dissipation (Max):: 45W (Tc)

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

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TO-220

STP22NF03L FAQ

1.How can I place an order for STP22NF03L through Aetrix?

Please submit a Request for Quotation (RFQ) for STP22NF03L 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 STP22NF03L reliable?

The price and inventory of STP22NF03L are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STP22NF03L is usually 5 days.

3.What payment methods are accepted for STP22NF03L?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STP22NF03L transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STP22NF03L?

STP22NF03L orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STP22NF03L 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 STP22NF03L?

For technical support, including STP22NF03L datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STP22NF03L requirements.

6.How does Aetrix verify that STP22NF03L is sourced from the original manufacturer or authorized distributors?

All STP22NF03L 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 STP22NF03L meets industry standards.

7.What is the process for return or replacement of STP22NF03L?

All STP22NF03L units undergo pre-shipment inspection (PSI). If there is an issue with STP22NF03L, 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 STP22NF03L part is unused and in its original packaging.

Return procedure for STP22NF03L:

1.Submit a request within 90 days.

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

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