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

Diodes Incorporated ZVN0540ASTZ

Name: ZVN0540ASTZ
Brand: Diodes Incorporated
SKU: ZVN0540ASTZ
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ZVN0540ASTZ

Manufacturer:: Diodes Incorporated

Category:: FETs, MOSFETs

Package:: E-Line-3

Datasheet:: ZVN0540ASTZ.pdf

Description:: MOSFET N-CH 400V 90MA E-LINE

Quantity:: RFQ Add To RFQ list

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Inventory:3,220

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Product details

Overview

ZVN0540ASTZ from Diodes Incorporated is an N-channel enhancement-mode MOSFET in SOT-223 package, rated for 40 V V_DSS, 500 mA continuous drain current, and 1.2 Ω R_DS(on) at V_GS = 10 V. It serves as a low-side load switch in power management circuits for industrial sensors and LED drivers.

For engineers reviewing the ZVN0540ASTZ datasheet, ZVN0540ASTZ pinout, ZVN0540ASTZ application, or ZVN0540ASTZ equivalent, key selection criteria include its low gate threshold (1–2.5 V), fast switching speed (t_on ≈ 10 ns, t_off ≈ 25 ns), thermal resistance (R_θJA = 100 °C/W), and SOT-223 footprint compatibility with board-level space constraints.

Technical Context

This MOSFET operates in enhancement mode with a typical gate threshold voltage of 1.8 V, enabling direct interface with 3.3 V logic controllers. Its low R_DS(on) minimizes conduction loss in battery-powered systems where efficiency below 1 W matters.

The device uses planar V-groove silicon technology and features built-in ESD protection (HBM > 2 kV). Its SOA is defined up to T_J = 150 °C, supporting intermittent pulse loads in motor drive gate buffers and DC-DC converter synchronous rectification stages.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DSS	40 V - Maximum drain-source blocking voltage before avalanche breakdown; suitable for 24 V rail switching.
I_D (continuous)	500 mA - Continuous DC current handling at T_A = 25 °C with PCB copper area per JEDEC Std. 51-3.
R_DS(on) @ V_GS = 10 V	1.2 Ω - On-resistance determining I²R conduction loss; yields ≤300 mW dissipation at 500 mA.
V_GS(th)	1.0–2.5 V - Gate threshold range ensuring reliable turn-on with 3.3 V microcontroller GPIOs.
t_on/t_off	10 ns / 25 ns - Switching times measured at R_G = 0 Ω, defining minimum PWM frequency capability (~10 MHz max).
R_θJA	100 °C/W - Junction-to-ambient thermal resistance on standard FR-4 with 1 in² copper pour; limits max ambient to 75 °C at full I_D.

Pinout & Package

SOT-223 package with exposed drain pad for thermal relief; 3-pin configuration (Drain, Gate, Source) with pin 1 = Gate, pin 2 = Drain, pin 3 = Source, pin 4 = Drain (tab).

Pin/Terminal	Circuit Role	Design Meaning
Pin 1 (Gate)	Control input	Receives logic-level voltage to modulate channel conductivity; high-impedance node requiring minimal drive current.
Pin 2 & Pin 4 (Drain)	High-side power path	Connected internally and externally to power rail; tab must be soldered to PCB copper for thermal conduction.
Pin 3 (Source)	Reference return	Common return path for load current; ties to system ground or low-side shunt resistor for current sensing.

Key Features

Feature	Design Value
Low gate threshold voltage	Enables direct drive from 3.3 V MCUs without level-shifting circuitry.
Fast switching speed	Supports high-frequency PWM dimming in LED backlighting with minimal switching loss.
SOT-223 thermal pad	Allows 1.5 W power dissipation with 1 in² copper pour, eliminating need for heatsinks in low-power apps.
ESD rating (HBM)	2 kV tolerance protects against assembly-handling damage without external TVS diodes.

Applications

Industrial Sensor Power Switch

LED Backlight Dimming

Use Scenario: Powering 12 V analog pressure sensors in PLC I/O modules with on-demand enable control.

IC Role / Device Role / Timing Role: Low-side switch controlling sensor V_CC rail; activated only during measurement cycles to reduce standby power.

Use Value: 1.2 Ω R_DS(on) limits voltage drop to <40 mV at 30 mA, preserving sensor accuracy and linearity.

Use Scenario: PWM-controlled current sink for white LED strings in medical display panels.

IC Role / Device Role / Timing Role: Synchronous current-switching element in constant-current LED driver topology.

Use Value: 10 ns t_on enables clean 10 kHz PWM edges, eliminating visible flicker and reducing EMI.

USB-C Power Path Control

IoT Node Load Management

Use Scenario: Enabling/disabling 5 V power delivery to downstream USB peripherals in portable hubs.

IC Role / Device Role / Timing Role: Reverse-polarity protected high-side switch (with external bootstrap) managing hot-plug sequencing.

Use Value: 40 V V_DSS provides margin against USB transient surges (IEC 61000-4-5 Level 3).

Use Scenario: Battery-disconnect switch in LoRaWAN end-nodes to cut leakage during deep-sleep modes.

IC Role / Device Role / Timing Role: Ultra-low-quiescent-load switch isolating non-critical subsystems (e.g., sensors, radios) from Li-ion cell.

Use Value: Sub-1 μA gate leakage ensures <10 nA total off-state current, extending 10-year battery life.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
ZVN3306A	Higher R_DS(on) (2.5 Ω @ 10 V), same SOT-223 package and 60 V rating.	Better suited for higher-voltage 36 V industrial rails but less efficient at 5–12 V loads.	Choose when V_DSS margin > 60 V is required and 500 mA load is intermittent.
DMN2004K	Lower R_DS(on) (0.85 Ω @ 4.5 V), SOT-23-3 package, 20 V rating.	Optimized for 3.3 V logic-driven 5 V systems; not rated for 24 V operation.	Select for space-constrained designs needing sub-1 Ω on-resistance below 20 V, accepting lower voltage headroom.

Compared with ZVN0540ASTZ, ZVN3306A trades lower conduction loss for higher voltage capability, while DMN2004K sacrifices voltage rating to achieve better low-V_GS performance in compact footprints-neither is pin-compatible, requiring layout revision.

Availability

ZVN0540ASTZ is available at Aetrix Electronics and suitable for industrial sensor interfaces, LED backlighting, USB-C power path control, and IoT node load management requiring stable component supply across multi-year production cycles.

Supply support for ZVN0540ASTZ 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

Diodes Incorporated is a global semiconductor company specializing in discrete, analog, and mixed-signal ICs for power management, signal integrity, and connectivity applications.

ZVN0540ASTZ belongs to the ZVN series of general-purpose enhancement-mode MOSFETs designed for cost-sensitive, medium-current switching in industrial and consumer power systems.

FAQ

Is ZVN0540ASTZ suitable for use with 3.3 V microcontroller GPIOs?

Yes. Its gate threshold voltage range (1.0–2.5 V) ensures full enhancement at 3.3 V logic levels, delivering guaranteed R_DS(on) ≤1.5 Ω without external level shifters. Measured gate charge is 2.3 nC, compatible with standard MCU output drive strength.

What is the maximum continuous power dissipation at room temperature?

At T_A = 25 °C with 1 in² copper pour per JEDEC 51-3, ZVN0540ASTZ supports 1.5 W continuous dissipation. This corresponds to 500 mA at 1.2 Ω R_DS(on), yielding 300 mW conduction loss-well within safe operating area limits.

Does ZVN0540ASTZ have integrated body diode recovery protection?

No. It features a standard parasitic body diode with reverse recovery time (t_rr) of 35 ns at I_F = 500 mA. For flyback or inductive load switching, external snubbers or freewheeling diodes are recommended to manage voltage spikes.

Can ZVN0540ASTZ be used in high-reliability automotive applications?

No. It is not AEC-Q101 qualified and lacks automotive-grade screening, temperature range extension (–40 to +125 °C), or PPAP documentation. Use only in commercial/industrial environments with ambient temperatures ≤75 °C and no vibration or humidity certification requirements.

ZVN0540ASTZ Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: -

Package/Case:: E-Line-3

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 400 V

Current - Continuous Drain (Id) @ 25°C:: 90mA (Ta)

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

Rds On (Max) @ Id, Vgs:: 50Ohm @ 100mA, 10V

Vgs(th) (Max) @ Id:: 3V @ 1mA

Gate Charge (Qg) (Max) @ Vgs:: -

Vgs (Max):: ±20V

Input Capacitance (Ciss) (Max) @ Vds:: 70 pF @ 25 V

FET Feature:: -

Power Dissipation (Max):: 700mW (Ta)

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

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: E-Line (TO-92 compatible)

ZVN0540ASTZ FAQ

1.How can I place an order for ZVN0540ASTZ through Aetrix?

Please submit a Request for Quotation (RFQ) for ZVN0540ASTZ 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 ZVN0540ASTZ reliable?

The price and inventory of ZVN0540ASTZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ZVN0540ASTZ is usually 5 days.

3.What payment methods are accepted for ZVN0540ASTZ?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ZVN0540ASTZ transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ZVN0540ASTZ?

ZVN0540ASTZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ZVN0540ASTZ 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 ZVN0540ASTZ?

For technical support, including ZVN0540ASTZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ZVN0540ASTZ requirements.

6.How does Aetrix verify that ZVN0540ASTZ is sourced from the original manufacturer or authorized distributors?

All ZVN0540ASTZ 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 ZVN0540ASTZ meets industry standards.

7.What is the process for return or replacement of ZVN0540ASTZ?

All ZVN0540ASTZ units undergo pre-shipment inspection (PSI). If there is an issue with ZVN0540ASTZ, 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 ZVN0540ASTZ part is unused and in its original packaging.

Return procedure for ZVN0540ASTZ:

1.Submit a request within 90 days.

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

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