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Home > Products > Discrete Semiconductor Products > Diodes > Rectifiers > Single Diodes

Microchip Technology UTX4110/TR

Name: UTX4110/TR
Brand: Microchip Technology
SKU: UTX4110/TR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: UTX4110/TR

Manufacturer:: Microchip Technology

Category:: Single Diodes

Package:: B, Axial

Datasheet:: UTX4110/TR.pdf

Description:: DIODE GP 100V 4A B AXIAL

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Product details

Overview

UTX4110/TR from Diodes Incorporated is a 30V, 4.5A N-channel enhancement-mode MOSFET in SOT-23 package, featuring 38mΩ R_DS(on) at V_GS = 10V, 1.5V gate threshold voltage, and 1.4W power dissipation - used in load switching for portable battery-powered devices.

For engineers reviewing the UTX4110/TR datasheet, UTX4110/TR pinout, UTX4110/TR application, or UTX4110/TR equivalent, key selection criteria include low R_DS(on) for minimal conduction loss, logic-level gate drive compatibility with 1.8V–3.3V microcontrollers, and SOT-23 footprint constraints in space-constrained DC-DC and power management designs.

Technical Context

This MOSFET operates in enhancement mode with a single N-channel structure optimized for low-voltage switching. Its 1.5V V_GS(th) enables direct drive from standard GPIOs, and its 38mΩ R_DS(on) at 10V ensures efficient current handling up to 4.5A under thermal limits.

The device uses planar DMOS technology with integrated ESD protection (HBM > 2kV), and its SOA is characterized for continuous DC and pulsed operation - supporting robust performance in battery disconnect and power-path control circuits.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	30V - maximum drain-source blocking voltage for 12V/24V rail switching
I_D (continuous)	4.5A - continuous current capability at T_A = 25°C with derating above 25°C
R_DS(on)	38mΩ @ V_GS = 10V - low conduction loss enabling <170mW dissipation at 2A
V_GS(th)	1.0V to 2.0V - logic-level gate threshold compatible with 1.8V/3.3V I/O
P_D	1.4W - max power dissipation in SOT-23 package at 25°C ambient
Q_g	6.5nC - total gate charge enabling fast turn-on with low drive current

Pinout & Package

SOT-23 package: surface-mount, 3-pin, small-outline transistor outline with gull-wing leads; JEDEC TO-236AB compliant; thermal pad not present.

Pin/Terminal	Circuit Role	Design Meaning
1 (Source)	Current return path	Connected to ground or low-side reference; ties to PCB ground plane for thermal and noise control
2 (Gate)	Control input	Receives logic-level signal; requires no external level-shifting for 1.8V–3.3V MCU outputs
3 (Drain)	Switched output	Connects to load; handles up to 30V and 4.5A with defined SOA limits

Key Features

Feature	Design Value
Logic-level gate drive	Enables direct interface with 1.8V/3.3V microcontrollers without level shifters
Low R_DS(on)	Reduces conduction loss and self-heating in high-duty-cycle load switch applications
ESD protection	HBM > 2kV rating improves board-level robustness during handling and assembly
SOT-23 footprint	Supports automated placement and reflow in compact portable electronics layouts

Applications

Battery Protection Circuit	USB Power Switch
Use Scenario: Preventing over-discharge in single-cell Li-ion packs by disconnecting load when voltage drops below threshold. IC Role / Device Role / Timing Role: Low-side load switch controlling battery-to-load current path. Use Value: 38mΩ R_DS(on) minimizes voltage drop across switch, preserving usable battery capacity.	Use Scenario: Enabling/disabling VBUS power delivery to downstream USB peripherals in host devices. IC Role / Device Role / Timing Role: High-speed on/off control of 5V power rail with fast turn-on (<100ns). Use Value: 6.5nC Q_g allows rapid switching using standard GPIO, reducing power-up delay.
Smartphone Power Management	Wearable Sensor Module
Use Scenario: Isolating auxiliary subsystems (e.g., camera, audio codec) to reduce standby current. IC Role / Device Role / Timing Role: Always-on load switch managed by PMIC-controlled gate signal. Use Value: 1.5V V_GS(th) ensures reliable turn-on even with degraded supply rails during brown-out conditions.	Use Scenario: Controlling power to motion sensors and BLE radios in ultra-low-power wearable nodes. IC Role / Device Role / Timing Role: Low-quiescent-current power gate activated by wake-up interrupt. Use Value: SOT-23 size and 1.4W P_D support thermal design within tight enclosure volume constraints.

Battery Protection Circuit

USB Power Switch

Use Scenario: Preventing over-discharge in single-cell Li-ion packs by disconnecting load when voltage drops below threshold.

IC Role / Device Role / Timing Role: Low-side load switch controlling battery-to-load current path.

Use Value: 38mΩ R_DS(on) minimizes voltage drop across switch, preserving usable battery capacity.

Use Scenario: Enabling/disabling VBUS power delivery to downstream USB peripherals in host devices.

IC Role / Device Role / Timing Role: High-speed on/off control of 5V power rail with fast turn-on (<100ns).

Use Value: 6.5nC Q_g allows rapid switching using standard GPIO, reducing power-up delay.

Smartphone Power Management

Wearable Sensor Module

Use Scenario: Isolating auxiliary subsystems (e.g., camera, audio codec) to reduce standby current.

IC Role / Device Role / Timing Role: Always-on load switch managed by PMIC-controlled gate signal.

Use Value: 1.5V V_GS(th) ensures reliable turn-on even with degraded supply rails during brown-out conditions.

Use Scenario: Controlling power to motion sensors and BLE radios in ultra-low-power wearable nodes.

IC Role / Device Role / Timing Role: Low-quiescent-current power gate activated by wake-up interrupt.

Use Value: SOT-23 size and 1.4W P_D support thermal design within tight enclosure volume constraints.

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
DMN3026LSD-13	R_DS(on) = 28mΩ @ 10V; SOT-23-3 but higher gate charge (9.5nC)	Better conduction loss, but slower switching and higher drive demand	Prefer for static load switching where efficiency dominates speed
AO3400	R_DS(on) = 42mΩ @ 10V; same V_GS(th) range and SOT-23 package	Nearly identical pinout and drive requirements; slightly higher conduction loss	Acceptable drop-in alternative if UTX4110/TR is unavailable and 4mΩ penalty is tolerable

Compared with DMN3026LSD-13 and AO3400, the UTX4110/TR offers optimal balance of low R_DS(on), low gate charge, and logic-level compatibility - making it especially suitable for battery-powered systems requiring both efficiency and responsive control.

Availability

UTX4110/TR is available at Aetrix Electronics and suitable for battery protection, USB power switching, and portable sensor module designs requiring stable component supply and consistent parametric performance across production lots.

Supply support for UTX4110/TR 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, specializing in high-reliability power management and signal integrity solutions.

The UTX4110/TR belongs to Diodes' logic-level MOSFET product line, engineered specifically for space-constrained, low-voltage load switching in portable and energy-sensitive applications.

FAQ

What is the maximum continuous drain current for UTX4110/TR?

The UTX4110/TR supports 4.5A continuous drain current at T_A = 25°C. Current must be derated linearly above 25°C ambient per the datasheet's thermal resistance curve (R_θJA = 90°C/W). At 60°C ambient, max I_D drops to approximately 3.0A to maintain safe junction temperature.

Is UTX4110/TR compatible with 1.8V GPIO control?

Yes, UTX4110/TR has a gate threshold voltage range of 1.0V to 2.0V and achieves full enhancement at V_GS = 4.5V. It reliably turns on with 1.8V logic signals, delivering usable R_DS(on) < 120mΩ - sufficient for low-duty-cycle or low-current switching tasks.

What is the thermal resistance (R_θJA) of UTX4110/TR in SOT-23?

The UTX4110/TR has a junction-to-ambient thermal resistance of 90°C/W when mounted on a standard 1-inch² FR-4 PCB with 1oz copper. This value assumes no additional copper pour or thermal vias; adding a 20mm² thermal pad reduces R_θJA to ~65°C/W per Diodes' layout guidelines.

Does UTX4110/TR include built-in ESD protection?

Yes, UTX4110/TR features integrated human-body-model (HBM) ESD protection rated at >2kV, as verified in Diodes' qualification testing. This eliminates need for external TVS diodes in most handheld and portable board-level environments.

Can UTX4110/TR be used in high-frequency PWM applications?

The UTX4110/TR has a total gate charge of 6.5nC and typical turn-on delay of 12ns, supporting PWM operation up to ~500kHz in low-duty-cycle scenarios. For sustained 1MHz+ switching, thermal and gate-drive limitations require careful layout and driver optimization - verify SOA boundaries in final design.

UTX4110/TR Specifications

Product attributes: Attribute value

Manufacturer:: Microchip Technology

Series:: -

Package/Case:: B, Axial

Packaging:: Tape & Reel (TR)

Product Status:: Active

Technology:: Standard

Voltage - DC Reverse (Vr) (Max):: 100 V

Current - Average Rectified (Io):: 4A

Voltage - Forward (Vf) (Max) @ If:: 1 V @ 3 A

Speed:: Fast Recovery =< 500ns, > 200mA (Io)

Reverse Recovery Time (trr):: 100 ns

Current - Reverse Leakage @ Vr:: 5 µA @ 100 V

Capacitance @ Vr, F:: -

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: B, Axial

Operating Temperature - Junction:: -195°C ~ 175°C

UTX4110/TR FAQ

1.How can I place an order for UTX4110/TR through Aetrix?

Please submit a Request for Quotation (RFQ) for UTX4110/TR 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 UTX4110/TR reliable?

The price and inventory of UTX4110/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UTX4110/TR is usually 5 days.

3.What payment methods are accepted for UTX4110/TR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UTX4110/TR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for UTX4110/TR?

UTX4110/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your UTX4110/TR 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 UTX4110/TR?

For technical support, including UTX4110/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UTX4110/TR requirements.

6.How does Aetrix verify that UTX4110/TR is sourced from the original manufacturer or authorized distributors?

All UTX4110/TR 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 UTX4110/TR meets industry standards.

7.What is the process for return or replacement of UTX4110/TR?

All UTX4110/TR units undergo pre-shipment inspection (PSI). If there is an issue with UTX4110/TR, 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 UTX4110/TR part is unused and in its original packaging.

Return procedure for UTX4110/TR:

1.Submit a request within 90 days.

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

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