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

Renesas 2SK2111-T2-AZ

Name: 2SK2111-T2-AZ
Brand: Renesas
SKU: 2SK2111-T2-AZ
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 2SK2111-T2-AZ

Manufacturer:: Renesas

Category:: FETs, MOSFETs

Package:: -

Datasheet:: 2SK2111-T2-AZ.pdf

Description:: SMALL SIGNAL N-CHANNEL MOSFET

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Product details

Overview

2SK2111-T2-AZ from Renesas Electronics is an N-channel vertical MOSFET designed for high-speed switching in low-voltage logic-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 operates up to 60 V V_DSS. It is used in DC/DC converter power switches and small motor drivers.

For engineers reviewing the 2SK2111-T2-AZ datasheet, 2SK2111-T2-AZ pinout, 2SK2111-T2-AZ application, or 2SK2111-T2-AZ equivalent, key selection criteria include gate-threshold voltage (V_GS(off) = 0.8–2.0 V), low-input-capacitance (C_iss = 170 pF), and ceramic-substrate thermal derating capability (2.0 W @ 16 cm² × 0.7 mm).

Technical Context

The 2SK2111-T2-AZ employs a vertical DMOS structure optimized for direct 5 V IC-level gate drive without level-shifting. Its low R_DS(on) and fast switching (t_d(on) = 2.8 ns, t_f = 27 ns) stem from minimized channel resistance and reduced parasitic capacitances (C_oss = 87 pF, C_rss = 32 pF).

It integrates a built-in body diode with V_SD ≈ 0.7–0.9 V at I_SD = 0.1–1.0 A and supports pulse drain current up to ±2.0 A (PW ≤ 10 ms, duty ≤ 50%). Channel temperature is rated to 150 °C, with safe operating area defined for single-pulse conditions up to 100 V and 1 A.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DSS	60 V - Maximum blocking voltage before avalanche; suitable for 24–48 V system rails.
R_DS(on) @ 4 V	0.32–0.6 Ω - Enables <1 W conduction loss at 0.5 A; critical for thermally constrained DC/DC stages.
t_on + t_off	< 100 ns - Supports >5 MHz switching in resonant or hard-switched topologies.
C_iss	170 pF - Low input capacitance reduces gate drive power and improves EMI margin.
V_GS(off)	0.8–2.0 V - Ensures reliable turn-on with standard TTL/CMOS 5 V outputs.
P_T	2.0 W - Achievable on 16 cm² ceramic substrate; requires thermal design verification.
I_D(pulse)	±2.0 A - Supports short-duration surge loads like motor startup or inrush limiting.

Pinout & Package

2SK2111-T2-AZ uses a TO-220AB (3-pin) through-hole package with isolated tab. Pin assignment is standardized: Gate (G), Drain (D), Source (S), with marking "NU" on the device face.

Pin/Terminal	Circuit Role	Design Meaning
G	Gate control terminal	Accepts 0–20 V drive; threshold ensures compatibility with 5 V logic; gate protection diode prevents ESD damage.
D	Drain current output	High-side or low-side switch node; connected to load or supply rail; electrically isolated from tab.
S	Source return path	Reference node for gate drive; internal body diode cathode; tied to ground or low-side return in most configurations.

Key Features

Feature	Design Value
Direct 5 V logic drive	V_GS(off) max 2.0 V enables full enhancement using standard microcontroller GPIOs without external level shifters.
Low switching loss	Combined t_d(on)/t_r/t_d(off)/t_f < 100 ns minimizes transition energy loss in high-frequency converters.
Thermally robust SOA	Forward-bias safe operating area supports 1 A at 50 V in single-pulse mode-critical for inductive load snubbing.
Integrated body diode	Forward voltage ~0.7–0.9 V at 0.5 A allows use in freewheeling or synchronous rectification roles without external diodes.

Applications

DC/DC Converter Switch	Small Brushed Motor Driver
Use Scenario: High-efficiency buck regulator in industrial sensor nodes requiring compact 24 V input to 5 V/3.3 V output. IC Role / Device Role: Primary low-side switching element synchronized with controller IC. Use Value: R_DS(on) ≤ 0.6 Ω limits conduction loss to <0.15 W at 0.5 A, while fast switching preserves efficiency above 1 MHz.	Use Scenario: Bidirectional drive for 12 V, 500 mA brushed motors in portable medical pumps. IC Role / Device Role: Half-bridge low-side switch paired with complementary high-side FET. Use Value: V_GS(off) range ensures clean turn-on at 5 V logic levels, and t_f = 27 ns enables precise PWM timing control.
LED Constant-Current Driver	Power Sequencing Switch
Use Scenario: Dimmable LED string driver in architectural lighting with analog/PWM dimming interface. IC Role / Device Role: Series-pass current switch modulated by op-amp feedback loop. Use Value: Low C_iss (170 pF) avoids phase lag in closed-loop bandwidth; R_DS(on) stability over temperature ensures consistent current regulation.	Use Scenario: Controlled power-up sequencing of FPGA core and I/O rails in embedded computing modules. IC Role / Device Role: Inrush-limited enable switch placed between intermediate supply and downstream LDOs. Use Value: Pulse rating (±2.0 A) handles capacitor charging surges; SOA curve validates safe 100 ms turn-on under full load.

DC/DC Converter Switch

Small Brushed Motor Driver

Use Scenario: High-efficiency buck regulator in industrial sensor nodes requiring compact 24 V input to 5 V/3.3 V output.

IC Role / Device Role: Primary low-side switching element synchronized with controller IC.

Use Value: R_DS(on) ≤ 0.6 Ω limits conduction loss to <0.15 W at 0.5 A, while fast switching preserves efficiency above 1 MHz.

Use Scenario: Bidirectional drive for 12 V, 500 mA brushed motors in portable medical pumps.

IC Role / Device Role: Half-bridge low-side switch paired with complementary high-side FET.

Use Value: V_GS(off) range ensures clean turn-on at 5 V logic levels, and t_f = 27 ns enables precise PWM timing control.

LED Constant-Current Driver

Power Sequencing Switch

Use Scenario: Dimmable LED string driver in architectural lighting with analog/PWM dimming interface.

IC Role / Device Role: Series-pass current switch modulated by op-amp feedback loop.

Use Value: Low C_iss (170 pF) avoids phase lag in closed-loop bandwidth; R_DS(on) stability over temperature ensures consistent current regulation.

Use Scenario: Controlled power-up sequencing of FPGA core and I/O rails in embedded computing modules.

IC Role / Device Role: Inrush-limited enable switch placed between intermediate supply and downstream LDOs.

Use Value: Pulse rating (±2.0 A) handles capacitor charging surges; SOA curve validates safe 100 ms turn-on under full load.

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
IRFZ44NPBF	R_DS(on) = 0.028 Ω @ 10 V (lower), but V_GS(th) = 2–4 V (higher); TO-220AB package, same pinout.	Better for 10 V gate drive systems; less suitable for direct 5 V logic due to higher threshold uncertainty.	Select when gate drive ≥ 8 V is available and lower conduction loss is prioritized over logic compatibility.
STP16NF06L	R_DS(on) = 0.075 Ω @ 5 V; V_GS(th) = 1–2.5 V; TO-220FP (full-pack) variant has insulated tab.	Higher gate charge and slower switching (t_on+t_off ≈ 200 ns); better thermal performance in surface-mount alternatives.	Prefer when board space permits TO-220FP and moderate speed suffices with tighter V_GS(th) distribution.

Compared with IRFZ44NPBF and STP16NF06L, the 2SK2111-T2-AZ offers superior 5 V logic compatibility and faster switching, but trades off higher R_DS(on); it remains optimal where gate drive voltage is fixed at 5 V and sub-100 ns transitions are required.

Availability

2SK2111-T2-AZ is available at Aetrix Electronics and suitable for DC/DC converters, small motor drivers, LED current switches, and power sequencing circuits requiring stable component supply across industrial and embedded production cycles.

Supply support for 2SK2111-T2-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 via merger of NEC Electronics and Renesas Technology, specializing in microcontrollers, analog, power, and connectivity solutions.

The 2SK2111-T2-AZ belongs to Renesas' legacy discrete power MOSFET product line, engineered specifically for cost-sensitive, high-reliability 5 V logic-driven switching in industrial automation and instrumentation.

FAQ

What is the maximum continuous drain current rating for the 2SK2111-T2-AZ?

The 2SK2111-T2-AZ has a DC drain current rating of ±1.0 A at T_A = 25 °C with specified thermal mounting (16 cm² ceramic substrate). Derating applies above 25 °C ambient per the published derating curve-e.g., ~1.5 A at 50 °C ambient with proper heatsinking. This rating assumes operation within absolute maximum limits and validated PCB layout for thermal transfer. The 2SK2111-T2-AZ must not exceed 150 °C channel temperature under any condition.

Does the 2SK2111-T2-AZ have a built-in body diode, and what is its forward voltage?

Yes, the 2SK2111-T2-AZ integrates a source-to-drain body diode with typical forward voltage (V_SD) ranging from 0.7 V at 0.1 A to 0.9 V at 1.0 A, measured at T_A = 25 °C. This diode supports freewheeling in inductive loads and enables use in asynchronous rectification. Its recovery characteristics are not specified as fast-recovery, so the 2SK2111-T2-AZ is not recommended for high-frequency synchronous rectifier roles without external validation.

Can the 2SK2111-T2-AZ be driven directly by a 3.3 V microcontroller GPIO?

No-the 2SK2111-T2-AZ specifies V_GS(off) between 0.8 V and 2.0 V, but guaranteed R_DS(on) ≤ 0.6 Ω is only ensured at V_GS = 4.0 V. At 3.3 V, R_DS(on) may exceed 1.0 Ω, increasing conduction loss significantly. For reliable enhancement, a minimum 4.0 V gate drive is required; therefore, the 2SK2111-T2-AZ is best suited for 5 V logic systems or buffered 3.3 V drive with level-shifting.

What is the thermal resistance junction-to-case (R_θJC) for the 2SK2111-T2-AZ?

The datasheet does not specify R_θJC explicitly for the 2SK2111-T2-AZ. Instead, thermal performance is characterized by total power dissipation (2.0 W) under defined mounting conditions: 16 cm² × 0.7 mm ceramic substrate. Designers must validate thermal design using the provided SOA curves and derating factor chart (dT = 1.33 %/°C above 25 °C). No R_θJC value should be assumed without manufacturer confirmation.

Is the 2SK2111-T2-AZ RoHS compliant and lead-free?

Yes-the 2SK2111-T2-AZ complies with the EU RoHS Directive. Renesas Electronics confirms environmental compliance for this part in accordance with applicable regulations, including restriction of lead, cadmium, mercury, hexavalent chromium, PBB, and PBDE. The "-AZ" suffix denotes RoHS-compliant packaging and termination finish; no lead-based solder is used in final assembly.

2SK2111-T2-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-T2-AZ FAQ

1.How can I place an order for 2SK2111-T2-AZ through Aetrix?

Please submit a Request for Quotation (RFQ) for 2SK2111-T2-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-T2-AZ reliable?

The price and inventory of 2SK2111-T2-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-T2-AZ is usually 5 days.

3.What payment methods are accepted for 2SK2111-T2-AZ?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 2SK2111-T2-AZ transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 2SK2111-T2-AZ?

2SK2111-T2-AZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 2SK2111-T2-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-T2-AZ?

For technical support, including 2SK2111-T2-AZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 2SK2111-T2-AZ requirements.

6.How does Aetrix verify that 2SK2111-T2-AZ is sourced from the original manufacturer or authorized distributors?

All 2SK2111-T2-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-T2-AZ meets industry standards.

7.What is the process for return or replacement of 2SK2111-T2-AZ?

All 2SK2111-T2-AZ units undergo pre-shipment inspection (PSI). If there is an issue with 2SK2111-T2-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-T2-AZ part is unused and in its original packaging.

Return procedure for 2SK2111-T2-AZ:

1.Submit a request within 90 days.

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

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