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

Diodes Incorporated 2N7002T-7

Name: 2N7002T-7
Brand: Diodes Incorporated
SKU: 2N7002T-7
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 2N7002T-7

Manufacturer:: Diodes Incorporated

Category:: FETs, MOSFETs

Package:: SOT-523

Datasheet:: 2N7002T-7.pdf

Description:: MOSFET N-CH 60V 115MA SOT-523

Quantity:: RFQ Add To RFQ list

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Inventory:8,422

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Product details

Overview

2N7002T-7 from Diodes Incorporated is an N-channel enhancement-mode MOSFET in SOT523 package, rated for 60V V_DSS, 7.5Ω R_DS(ON) @ V_GS = 5V, and 115mA continuous drain current at +25°C. It serves as a low-power switching device in battery-operated systems, DC-DC converters, and solid-state relay drivers.

For engineers reviewing the 2N7002T-7 datasheet, 2N7002T-7 pinout, 2N7002T-7 application, or 2N7002T-7 equivalent, key selection criteria include gate threshold voltage (1.0–2.0V), ultra-small footprint (SOT523), low input capacitance (22pF typ), fast switching (t_D(ON) ≤ 20ns), and RoHS-compliant lead-free construction.

Technical Context

This MOSFET employs silicon planar technology with optimized channel geometry to achieve low on-resistance while maintaining robust gate oxide integrity. Its 1.0–2.0V V_GS(TH) enables direct interfacing with 3.3V and 5V logic controllers without level shifting.

Thermal resistance of 833°C/W (R_θJA) reflects its ultra-small SOT523 package limitation, requiring careful PCB layout for thermal management. The device is characterized for operation from –55°C to +150°C, with R_DS(ON) increasing to 13.5Ω at +125°C under V_GS = 5V.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DSS	60V - supports switching of 24V and 48V rail systems with margin
R_DS(ON)	7.5Ω @ V_GS = 5V - enables efficient low-current switching up to ~115mA
I_D (continuous)	115mA @ T_A = +25°C - suitable for signal-level and light-load power switching
C_iss	22pF typ - minimizes gate drive energy and improves switching speed
t_D(ON)	7.0–20ns - supports high-frequency PWM control in compact DC-DC stages
V_GS(TH)	1.0–2.0V - ensures reliable turn-on with standard 3.3V GPIO outputs
P_D	150mW - limits usable power dissipation without heatsinking or forced airflow

Pinout & Package

SOT523 is a 3-pin ultra-small surface-mount plastic package measuring 1.60 × 1.60 × 0.75 mm, with matte tin-plated alloy 42 leadframe and UL 94V-0 molding compound. Moisture sensitivity level is J-STD-020 Level 1.

Pin/Terminal	Circuit Role	Design Meaning
Drain (D)	Current output path	Connected to load return or high-side switch node; electrically isolated from package tab
Gate (G)	Control terminal	High-impedance input requiring <10nA leakage; sensitive to ESD; drives with 3.3V/5V logic
Source (S)	Reference node	Typically tied to ground or low-side return; defines V_GS reference for switching

Key Features

Feature	Design Value
Low gate threshold voltage	1.0–2.0V enables direct drive from 3.3V microcontrollers without gate driver ICs
Ultra-small SOT523 footprint	1.6mm × 1.6mm area saves board space in wearables and portable medical sensors
Low input capacitance	22pF typical C_iss reduces gate charge (Q_g ≈ 0.8nC) and switching losses
Lead-free & halogen-free	Meets RoHS 3 (2015/863/EU) and "Green" definition (<900ppm Br+Cl, <1000ppm Sb)
Fast switching speed	Turn-on delay ≤20ns allows use in >1MHz PWM applications with minimal dead-time overhead

Applications

Battery-Powered Sensor Nodes

Low-Voltage Logic-Level Switching

Use Scenario: Power gating of BLE transceivers and environmental sensors in coin-cell-powered IoT endpoints.

IC Role / Device Role / Timing Role: Low-leakage N-channel switch controlling V_DD supply to peripheral ICs during sleep mode.

Use Value: IDSS ≤1.0µA at +25°C ensures multi-year battery life; 115mA rating covers peak transmit current.

Use Scenario: Enabling/disabling LED indicators, buzzer drivers, or memory write-enable lines in embedded control panels.

IC Role / Device Role / Timing Role: Signal-level load switch replacing discrete transistor pairs or mechanical relays.

Use Value: V_GS(TH) ≤2.0V guarantees full enhancement with 3.3V FPGA I/O; SOT523 fits dense front-panel layouts.

DC-DC Converter Synchronous Rectification

Small-Signal Relay/Solenoid Driver

Use Scenario: Secondary-side synchronous rectifier in isolated 5V-to-3.3V flyback converters for industrial gateways.

IC Role / Device Role / Timing Role: Low-R_DS(ON) switch replacing Schottky diode to improve efficiency at light loads.

Use Value: 7.5Ω R_DS(ON) @ 5V reduces conduction loss vs. 0.3V diode drop at 50mA load; fast t_D(ON) supports 500kHz+ operation.

Use Scenario: Driving miniature latching relays (e.g., 5V/100mA coil) in programmable logic controllers.

IC Role / Device Role / Timing Role: Low-side switch interfaced directly to microcontroller GPIO pins.

Use Value: 150mW P_D and 833°C/W R_θJA require no heatsink for intermittent 100ms pulses; low C_iss prevents shoot-through in H-bridge variants.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
DMN2004K-7	R_DS(ON) = 3.5Ω @ V_GS = 4.5V; SOT-723 package (smaller than SOT523)	Higher current capability (200mA) but tighter layout tolerance due to 1.25×1.25mm footprint	Preferred when higher I_D and lower R_DS(ON) are needed without changing gate drive voltage
BS170-7-F	V_DSS = 60V but R_DS(ON) = 5Ω @ V_GS = 10V; TO-92 through-hole package	Requires PCB real estate and manual assembly; unsuitable for automated SMT lines	Select only for prototyping or legacy through-hole designs where SMT rework is unavailable

Compared with DMN2004K-7 and BS170-7-F, the 2N7002T-7 offers optimal balance of SMT compatibility, 3.3V logic compatibility, and cost for sub-120mA switching-making it preferred for volume production of space-constrained consumer and industrial electronics.

Availability

2N7002T-7 is available at Aetrix Electronics and suitable for battery-operated sensor nodes, low-voltage logic-level switching, and small-signal relay/solenoid driving requiring stable component supply across high-mix production runs.

Supply support for 2N7002T-7 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 manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design, manufacturing, and distribution operations across Asia, Europe, and North America.

The 2N7002T series belongs to Diodes' general-purpose MOSFET product line, engineered specifically for low-power, high-efficiency switching in portable and space-constrained applications where logic-level gate drive and ultra-small packaging are essential.

FAQ

What is the maximum continuous drain current for 2N7002T-7 at +85°C ambient?

At T_A = +85°C, the maximum continuous drain current is derated to approximately 73mA per the datasheet's ID rating table (ID = 73mA @ +100°C, linearly interpolated). This reflects thermal limitations of the SOT523 package with R_θJA = 833°C/W and 150mW power dissipation limit.

Can 2N7002T-7 be used as a high-side switch?

No-it is an N-channel MOSFET requiring gate voltage above source potential for conduction. As a high-side switch, it would need a gate driver capable of generating V_GS ≥ 5V above the drain rail, which is impractical at 60V. It is designed exclusively for low-side switching configurations.

Is 2N7002T-7 suitable for automotive applications?

The standard 2N7002T-7 is not AEC-Q101 qualified. Diodes Incorporated offers automotive-grade variants (e.g., 2N7002WQ-7) with PPAP documentation and IATF 16949 manufacturing, but this part requires explicit qualification confirmation before deployment in automotive ECUs or body control modules.

What is the recommended PCB pad layout for SOT523 package reliability?

Diodes recommends using the SOT523 pad layout specified in their package outline document (PN: AP02004), featuring 0.22mm wide traces, 0.75mm pad length, and thermal relief for the source pad. Minimum copper area should match the datasheet's "single-sided FR-4" test condition to ensure 150mW power handling and avoid solder joint cracking during thermal cycling.

2N7002T-7 Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: -

Package/Case:: SOT-523

Packaging:: Tape & Reel (TR)

Product Status:: Discontinued at Digi-Key

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 60 V

Current - Continuous Drain (Id) @ 25°C:: 115mA (Ta)

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

Rds On (Max) @ Id, Vgs:: 7.5Ohm @ 50mA, 5V

Vgs(th) (Max) @ Id:: 2V @ 250µA

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

Vgs (Max):: ±20V

Input Capacitance (Ciss) (Max) @ Vds:: 50 pF @ 25 V

FET Feature:: -

Power Dissipation (Max):: 150mW (Ta)

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-523

2N7002T-7 FAQ

1.How can I place an order for 2N7002T-7 through Aetrix?

Please submit a Request for Quotation (RFQ) for 2N7002T-7 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 2N7002T-7 reliable?

The price and inventory of 2N7002T-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 2N7002T-7 is usually 5 days.

3.What payment methods are accepted for 2N7002T-7?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 2N7002T-7 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 2N7002T-7?

2N7002T-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 2N7002T-7 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 2N7002T-7?

For technical support, including 2N7002T-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 2N7002T-7 requirements.

6.How does Aetrix verify that 2N7002T-7 is sourced from the original manufacturer or authorized distributors?

All 2N7002T-7 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 2N7002T-7 meets industry standards.

7.What is the process for return or replacement of 2N7002T-7?

All 2N7002T-7 units undergo pre-shipment inspection (PSI). If there is an issue with 2N7002T-7, 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 2N7002T-7 part is unused and in its original packaging.

Return procedure for 2N7002T-7:

1.Submit a request within 90 days.

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

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