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

Renesas 2SK2111-D-T1-AZ

Name: 2SK2111-D-T1-AZ
Brand: Renesas
SKU: 2SK2111-D-T1-AZ
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 2SK2111-D-T1-AZ

Manufacturer:: Renesas

Category:: FETs, MOSFETs

Package:: -

Datasheet:: 2SK2111-D-T1-AZ.pdf

Description:: SMALL SIGNAL N-CHANNEL MOSFET

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Product details

Overview

2SK2111-D-T1-AZ from Renesas Electronics is an N-channel vertical MOSFET designed for high-speed switching in low-voltage IC-driven circuits. It features R_DS(on) ≤ 0.6 Ω at V_GS = 4.0 V and I_D = 0.5 A, t_on + t_off < 100 ns, and 60 V V_DSS, making it suitable for motor driver stages and DC/DC converter primary-side switches.

For engineers reviewing the 2SK2111-D-T1-AZ datasheet, 2SK2111-D-T1-AZ pinout, 2SK2111-D-T1-AZ application, or 2SK2111-D-T1-AZ equivalent, key selection criteria include gate drive compatibility with 5 V logic, safe operating area under pulsed 2.0 A loads, thermal derating on ceramic substrates, and low C_iss/C_oss for fast switching efficiency.

Technical Context

This discrete power MOSFET uses a vertical structure optimized for low conduction loss and rapid transition between on/off states. Its gate threshold voltage (V_GS(off) = 0.8–2.0 V) ensures reliable turn-on from standard TTL/CMOS outputs, while internal body diode enables freewheeling in inductive load circuits.

The device operates within a channel temperature limit of 150 °C and exhibits strong temperature stability in R_DS(on) - varying from 0.32 Ω at 25 °C to ~0.5 Ω at 75 °C under V_GS = 4 V - supporting consistent performance across industrial ambient ranges.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DSS	60 V - supports operation in 24–48 V bus systems without avalanche stress
R_DS(on) max	0.6 Ω @ V_GS = 4 V, I_D = 0.5 A - enables <1 W conduction loss at rated DC current
t_on + t_off	< 100 ns - allows >5 MHz switching in hard-switched topologies
C_iss	170 pF - limits gate drive power requirement for 5 V logic-level control
I_D(pulse)	±2.0 A (PW ≤ 10 ms, duty ≤ 50%) - handles short-circuit or startup surge in motor drives
P_T	2.0 W on 16 cm² × 0.7 mm ceramic substrate - defines heatsinking requirement for continuous operation

Pinout & Package

2SK2111-D-T1-AZ is housed in a TO-236AB (SC-59) surface-mount package with gull-wing leads, marked "NU". The package measures 4.5 × 2.5 × 1.6 mm and is optimized for automated placement and reflow soldering on FR-4 or ceramic PCBs.

Pin/Terminal	Circuit Role	Design Meaning
G	Gate	Control terminal accepting 0–20 V bias; requires no external gate resistor for 5 V CMOS drive due to low C_iss
D	Drain	Main current output path; connected to positive rail or inductive load; rated for 60 V blocking
S	Source	Reference node for gate drive and current return; internally tied to body diode cathode

Key Features

Feature	Design Value
Logic-level gate drive	Turns fully on with 4 V gate-source voltage - eliminates need for level-shifting circuitry when driven by microcontrollers or gate drivers
Low switching loss	Combined t_on/t_off < 100 ns reduces energy dissipation per cycle in PWM applications
Integrated body diode	Enables bidirectional current handling in half-bridge configurations without external freewheeling diodes
Thermal robustness	Rated for 150 °C channel temperature and derated linearly above 25 °C ambient - supports operation in enclosed industrial enclosures

Applications

Motor Driver Stage	DC/DC Converter Switch
Use Scenario: Driving small brushed DC motors in portable tools or actuator modules where space and thermal budget are constrained. IC Role / Device Role / Timing Role: Low-side switching element controlled directly by MCU GPIO or dedicated gate driver IC. Use Value: R_DS(on) ≤ 0.6 Ω minimizes I²R heating at 0.5 A load; fast switching preserves battery life via reduced dead-time losses.	Use Scenario: High-frequency synchronous rectifier or primary-side switch in isolated flyback or forward converters. IC Role / Device Role / Timing Role: Power switching transistor in 100–500 kHz switching power supplies. Use Value: C_iss = 170 pF and t_on/t_off < 100 ns enable efficient operation without excessive gate drive power or EMI penalties.
LED Dimming Circuit	Industrial Sensor Interface
Use Scenario: PWM-controlled current sink for high-brightness LED strings in signage or machine vision lighting. IC Role / Device Role / Timing Role: Constant-current switch modulated at 1–20 kHz to avoid audible noise. Use Value: Low V_GS(th) and fast response ensure precise dimming linearity and minimal duty-cycle distortion.	Use Scenario: Solid-state relay replacement in PLC I/O modules interfacing 24 V sensors or solenoids. IC Role / Device Role / Timing Role: Isolated load switch activated by optocoupler or digital isolator output. Use Value: ±20 V V_GSS rating tolerates transient coupling; 2.0 A pulse rating accommodates inrush currents during sensor activation.

Motor Driver Stage

DC/DC Converter Switch

Use Scenario: Driving small brushed DC motors in portable tools or actuator modules where space and thermal budget are constrained.

IC Role / Device Role / Timing Role: Low-side switching element controlled directly by MCU GPIO or dedicated gate driver IC.

Use Value: R_DS(on) ≤ 0.6 Ω minimizes I²R heating at 0.5 A load; fast switching preserves battery life via reduced dead-time losses.

Use Scenario: High-frequency synchronous rectifier or primary-side switch in isolated flyback or forward converters.

IC Role / Device Role / Timing Role: Power switching transistor in 100–500 kHz switching power supplies.

Use Value: C_iss = 170 pF and t_on/t_off < 100 ns enable efficient operation without excessive gate drive power or EMI penalties.

LED Dimming Circuit

Industrial Sensor Interface

Use Scenario: PWM-controlled current sink for high-brightness LED strings in signage or machine vision lighting.

IC Role / Device Role / Timing Role: Constant-current switch modulated at 1–20 kHz to avoid audible noise.

Use Value: Low V_GS(th) and fast response ensure precise dimming linearity and minimal duty-cycle distortion.

Use Scenario: Solid-state relay replacement in PLC I/O modules interfacing 24 V sensors or solenoids.

IC Role / Device Role / Timing Role: Isolated load switch activated by optocoupler or digital isolator output.

Use Value: ±20 V V_GSS rating tolerates transient coupling; 2.0 A pulse rating accommodates inrush currents during sensor activation.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
DMN2004LK-7	R_DS(on) = 0.45 Ω @ V_GS = 4.5 V; SOT-23 package; higher C_iss (220 pF)	Better conduction loss but slower switching; less suitable for >1 MHz operation	Select when lower R_DS(on) dominates over speed; verify layout for higher gate charge
AO3400	R_DS(on) = 0.028 Ω @ V_GS = 10 V; SOT-23; not logic-level at 4 V (V_GS(th) = 0.7–1.4 V)	Superior conduction at 10 V drive but marginal turn-on at 4 V; requires gate boost for full enhancement	Choose only with 5 V or higher gate drive; unsuitable for direct 3.3 V MCU interface

Compared with DMN2004LK-7 and AO3400, the 2SK2111-D-T1-AZ offers balanced trade-offs: guaranteed 4 V turn-on, sub-100 ns switching, and TO-236AB mechanical robustness - making it preferred for space-constrained industrial switching where gate drive voltage margin and thermal reliability are critical.

Availability

2SK2111-D-T1-AZ is available at Aetrix Electronics and suitable for motor control, DC/DC conversion, LED dimming, and industrial sensor interface applications requiring stable component supply and long-term manufacturing continuity.

Supply support for 2SK2111-D-T1-AZ 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

Renesas Electronics Corporation is a global semiconductor leader formed in 2010 through the merger of NEC Electronics and Renesas Technology, specializing in microcontrollers, analog, power, and connectivity solutions.

The 2SK2111-D-T1-AZ belongs to Renesas' legacy discrete power MOSFET product line, engineered specifically for cost-sensitive, high-reliability industrial switching applications where logic-level drive and thermal resilience are essential.

FAQ

What is the maximum continuous drain current rating for the 2SK2111-D-T1-AZ?

The 2SK2111-D-T1-AZ has a DC drain current rating of ±1.0 A at T_A = 25 °C with proper heatsinking. This rating drops with rising ambient temperature - for example, to ~0.7 A at 75 °C - based on its 2.0 W total power dissipation limit on a 16 cm² ceramic substrate. Always refer to the SOA curve in the datasheet for pulsed or elevated-temperature operation.

Can the 2SK2111-D-T1-AZ be driven directly by a 3.3 V microcontroller GPIO?

The 2SK2111-D-T1-AZ specifies V_GS(off) = 0.8–2.0 V and R_DS(on) ≤ 0.6 Ω at V_GS = 4.0 V, so 3.3 V drive yields partial enhancement - typically R_DS(on) ≈ 0.8–1.0 Ω - which may cause excessive heating at >0.3 A. For reliable full-on operation, use ≥4.0 V gate drive; consider a simple level shifter if only 3.3 V is available.

Does the 2SK2111-D-T1-AZ include a built-in body diode, and what are its characteristics?

Yes, the 2SK2111-D-T1-AZ integrates a parasitic body diode between source and drain. Its forward voltage (V_SD) is ~0.8 V at I_SD = 0.5 A and 25 °C, with reverse recovery time not specified - indicating it is not optimized for synchronous rectification. Use only for freewheeling in low-frequency inductive loads, not high-speed recovery applications.

What is the package type and lead finish of the 2SK2111-D-T1-AZ?

The 2SK2111-D-T1-AZ uses the TO-236AB (SC-59) surface-mount package with gull-wing leads and is marked "NU". Its lead finish is matte tin, compliant with JEDEC J-STD-020 moisture sensitivity level 1 (MSL-1), allowing unlimited floor life and standard reflow profiles without baking.

Is the 2SK2111-D-T1-AZ suitable for automotive applications?

No - the 2SK2111-D-T1-AZ is classified as a Standard quality grade device per Renesas documentation, intended for office equipment, industrial robots, and consumer appliances. It lacks AEC-Q101 qualification, extended temperature validation, or automotive-specific reliability testing, and is not recommended for automotive powertrain or safety-critical systems.

2SK2111-D-T1-AZ Specifications

Product attributes: Attribute value

Manufacturer:: Renesas

Series:: *

Package/Case:: -

Packaging:: Bulk

Product Status:: Active

FET Type:: -

Technology:: -

Drain to Source Voltage (Vdss):: -

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

Drive Voltage (Max Rds On, Min Rds On):: -

Rds On (Max) @ Id, Vgs:: -

Vgs(th) (Max) @ Id:: -

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

Vgs (Max):: -

Input Capacitance (Ciss) (Max) @ Vds:: -

FET Feature:: -

Power Dissipation (Max):: -

Operating Temperature:: -

Grade:: -

Qualification:: -

Mounting Type:: -

Supplier Device Package:: -

2SK2111-D-T1-AZ FAQ

1.How can I place an order for 2SK2111-D-T1-AZ through Aetrix?

Please submit a Request for Quotation (RFQ) for 2SK2111-D-T1-AZ 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 2SK2111-D-T1-AZ reliable?

The price and inventory of 2SK2111-D-T1-AZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 2SK2111-D-T1-AZ is usually 5 days.

3.What payment methods are accepted for 2SK2111-D-T1-AZ?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 2SK2111-D-T1-AZ transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 2SK2111-D-T1-AZ?

2SK2111-D-T1-AZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 2SK2111-D-T1-AZ 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 2SK2111-D-T1-AZ?

For technical support, including 2SK2111-D-T1-AZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 2SK2111-D-T1-AZ requirements.

6.How does Aetrix verify that 2SK2111-D-T1-AZ is sourced from the original manufacturer or authorized distributors?

All 2SK2111-D-T1-AZ 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 2SK2111-D-T1-AZ meets industry standards.

7.What is the process for return or replacement of 2SK2111-D-T1-AZ?

All 2SK2111-D-T1-AZ units undergo pre-shipment inspection (PSI). If there is an issue with 2SK2111-D-T1-AZ, 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 2SK2111-D-T1-AZ part is unused and in its original packaging.

Return procedure for 2SK2111-D-T1-AZ:

1.Submit a request within 90 days.

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

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