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

Renesas 2SK2111-T1-AZ

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

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Part No.:: 2SK2111-T1-AZ

Manufacturer:: Renesas

Category:: FETs, MOSFETs

Package:: -

Datasheet:: 2SK2111-T1-AZ.pdf

Description:: SMALL SIGNAL N-CHANNEL MOSFET

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Inventory:20,932

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Product details

Overview

2SK2111-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 a 60 V V_DSS rating - enabling use in DC/DC converters and small motor drivers.

For engineers reviewing the 2SK2111-T1-AZ datasheet, 2SK2111-T1-AZ pinout, 2SK2111-T1-AZ application, or 2SK2111-T1-AZ equivalent, key selection criteria include gate-threshold compatibility with 5 V logic, low-conduction-loss operation at ≤1 A DC, and thermal performance on ceramic substrates.

Technical Context

This device operates as a single N-channel enhancement-mode power switch with integrated body diode. Its vertical structure enables low R_DS(on) and fast switching via low C_iss (170 pF), C_oss (87 pF), and Cr_ss (32 pF) at V_DS = 10 V.

V_GS(off) ranges from 0.8 V to 2.0 V, supporting reliable turn-off under 5 V drive while maintaining low gate charge. The device is rated for 1.0 A DC drain current and 2.0 A pulsed current (PW ≤ 10 ms, duty ≤ 50 %) at T_A = 25 °C.

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) @ 4 V	0.32–0.6 Ω - enables <1 W conduction loss at 0.5 A, suitable for compact heatsinkless designs
t_on + t_off	< 100 ns - allows >1 MHz switching in synchronous buck or half-bridge topologies
C_iss	170 pF - reduces gate drive power requirement for 5 V microcontroller outputs
I_D(DC)	±1.0 A - defines continuous load capability in motor H-bridge or DC/DC high-side switches
V_GS(off)	0.8–2.0 V - ensures full turn-off with standard TTL/CMOS logic low (≤0.4 V)
P_T	2.0 W on 16 cm² ceramic substrate - sets thermal design boundary for PCB layout and copper area

Pinout & Package

2SK2111-T1-AZ uses a TO-236AB (SC-59) surface-mount package with 3 terminals: Gate (G), Drain (D), and Source (S). Marking "NU" identifies the device on-body.

Pin/Terminal	Circuit Role	Design Meaning
G	Gate	Control input; requires ≤±20 V drive; low input capacitance enables direct MCU interface
D	Drain	High-side or low-side power node; rated for 60 V repetitive blocking and 2.0 A pulse
S	Source	Reference node for gate drive; internal body diode conducts S→D during freewheeling

Key Features

Feature	Design Value
Low R_DS(on) at 4 V	0.32–0.6 Ω enables efficient 5 V logic-level switching without gate boosters
Fast switching speed	t_d(on) = 2.8 ns, t_f = 27 ns - minimizes transition losses in high-frequency SMPS
Low parasitic capacitance	C_iss/C_oss/C_rss = 170/87/32 pF - improves EMI profile and reduces gate oscillation risk
Integrated body diode	Forward voltage ~0.7 V at 0.5 A - supports asynchronous rectification in flyback or buck converters

Applications

Motor Control	DC/DC Converter
Use Scenario: Driving small brushed DC motors in portable instruments or actuator modules. IC Role / Device Role / Timing Role: Low-side or high-side switching element controlled by PWM from 5 V microcontrollers. Use Value: Low R_DS(on) and fast switching reduce heat generation and enable precise speed control up to 20 kHz.	Use Scenario: High-efficiency synchronous rectifier or main switch in 12–24 V input buck converters. IC Role / Device Role / Timing Role: Power switch operating at 500 kHz–1 MHz with gate driven directly from controller output. Use Value: Sub-1 Ω R_DS(on) at 4 V eliminates need for external level shifters, simplifying BOM and layout.
Power Management	Industrial Sensor Interface
Use Scenario: Load switching for 24 V solenoids or relays in PLC I/O modules. IC Role / Device Role / Timing Role: Single-pole power switch with integrated protection diode for inductive load suppression. Use Value: Rated 2.0 A pulse current handles relay coil surge; 60 V V_DSS accommodates 100 V+ inductive kickback.	Use Scenario: Isolated power rail enable in analog sensor signal conditioning circuits. IC Role / Device Role / Timing Role: Low-noise, low-leakage (I_DSS ≤ 1.0 µA) switch controlling bias supply to precision op-amps. Use Value: Ultra-low cutoff current prevents signal drift; V_GS(off) range ensures clean turn-off even with noisy ground references.

Motor Control

DC/DC Converter

Use Scenario: Driving small brushed DC motors in portable instruments or actuator modules.

IC Role / Device Role / Timing Role: Low-side or high-side switching element controlled by PWM from 5 V microcontrollers.

Use Value: Low R_DS(on) and fast switching reduce heat generation and enable precise speed control up to 20 kHz.

Use Scenario: High-efficiency synchronous rectifier or main switch in 12–24 V input buck converters.

IC Role / Device Role / Timing Role: Power switch operating at 500 kHz–1 MHz with gate driven directly from controller output.

Use Value: Sub-1 Ω R_DS(on) at 4 V eliminates need for external level shifters, simplifying BOM and layout.

Power Management

Industrial Sensor Interface

Use Scenario: Load switching for 24 V solenoids or relays in PLC I/O modules.

IC Role / Device Role / Timing Role: Single-pole power switch with integrated protection diode for inductive load suppression.

Use Value: Rated 2.0 A pulse current handles relay coil surge; 60 V V_DSS accommodates 100 V+ inductive kickback.

Use Scenario: Isolated power rail enable in analog sensor signal conditioning circuits.

IC Role / Device Role / Timing Role: Low-noise, low-leakage (I_DSS ≤ 1.0 µA) switch controlling bias supply to precision op-amps.

Use Value: Ultra-low cutoff current prevents signal drift; V_GS(off) range ensures clean turn-off even with noisy ground references.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
ROHM SSF10N03	R_DS(on) = 0.012 Ω @ 4.5 V, higher current (10 A), larger SO-8 package	Better suited for higher-power DC/DC where thermal mass and current headroom matter	Select when >1 A continuous current or lower R_DS(on) is required; not drop-in due to footprint and drive voltage mismatch
ON Semiconductor NTMFS4C09NT1G	R_DS(on) = 0.0045 Ω @ 4.5 V, 90 A rating, PowerTrench® packaging	Targeted at high-current industrial power stages, not low-power logic-level switching	Choose only for high-efficiency, high-current applications; over-specified and cost-prohibitive for 2SK2111-T1-AZ's use cases

Compared with ROHM SSF10N03 and ON Semi NTMFS4C09NT1G, the 2SK2111-T1-AZ delivers optimal balance of 5 V drive compatibility, compact SC-59 footprint, and sub-1 A switching efficiency - making it preferable for space-constrained, low-to-moderate power logic-level applications where cost and simplicity are prioritized.

Availability

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

Supply support for 2SK2111-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 delivering microcontrollers, analog, power, and connectivity solutions for automotive, industrial, and IoT markets.

The 2SK2111-T1-AZ belongs to Renesas' legacy discrete power MOSFET product line, engineered specifically for cost-sensitive, low-voltage, high-speed switching in consumer and industrial equipment.

FAQ

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

The 2SK2111-T1-AZ is rated for ±1.0 A DC drain current at T_A = 25 °C with proper thermal management. Derating applies above ambient temperatures - e.g., ~1.5 A becomes the practical limit at 75 °C ambient on a 16 cm² ceramic substrate. This rating ensures safe operation in motor driver and power switch roles without exceeding channel temperature limits.

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

The 2SK2111-T1-AZ has a V_GS(off) range of 0.8–2.0 V and R_DS(on) specified down to V_GS = 4.0 V. While it may partially turn on at 3.3 V, its R_DS(on) rises significantly beyond 0.6 Ω, increasing conduction loss. For reliable saturation, a 5 V gate drive is recommended - meaning direct 3.3 V MCU drive is not advised without verification of load current and thermal margin in the 2SK2111-T1-AZ application.

Does the 2SK2111-T1-AZ include built-in ESD protection?

The 2SK2111-T1-AZ datasheet specifies an internal gate protection diode but does not state compliance with human-body model (HBM) or charged-device model (CDM) ESD standards. Its absolute maximum V_GS rating is ±20 V, indicating limited intrinsic gate oxide robustness. External gate series resistance and Zener clamping are recommended in production designs using the 2SK2111-T1-AZ to prevent electrostatic damage during handling or board assembly.

What is the safe operating area (SOA) limitation for the 2SK2111-T1-AZ at 25 V drain-source voltage?

At V_DS = 25 V, the 2SK2111-T1-AZ SOA curve permits up to ~0.8 A for DC operation and ~1.5 A for 100 ms pulses on a 16 cm² ceramic substrate. Exceeding these boundaries risks thermal runaway due to limited power dissipation (2.0 W). Designers must consult the SOA graph in the 2SK2111-T1-AZ datasheet and apply appropriate current limiting or pulse-width constraints in high-voltage switching applications.

Is the 2SK2111-T1-AZ compliant with RoHS and lead-free soldering requirements?

Yes, the 2SK2111-T1-AZ is RoHS-compliant and qualified for lead-free reflow soldering per J-STD-020. Its package (TO-236AB) and termination meet JEDEC Level 2a moisture sensitivity, and the device carries the "Pb-Free" marking per Renesas' environmental documentation. Full compliance data, including substance declarations, is available in Renesas' official material disclosure for the 2SK2111-T1-AZ.

2SK2111-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-T1-AZ FAQ

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

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

The price and inventory of 2SK2111-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-T1-AZ is usually 5 days.

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

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

Note: Certain payment methods may incur a processing fee.

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

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

Once your 2SK2111-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-T1-AZ?

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

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

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

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

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

Return procedure for 2SK2111-T1-AZ:

1.Submit a request within 90 days.

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

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