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FDT86106LZ

ONFDT86106LZ

onsemi
N-Channel 100 V 3.2A (Ta) 2.2W (Ta) Surface Mount SOT-223-4
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Overview

The FDT86106LZ is a 100V N-Channel MOSFET from onsemi, designed for high-efficiency power management in a compact SOT-223-4 package. It features integrated Zener diode protection on the gate to provide robust ESD performance and a logic-level gate threshold for direct drive from microcontrollers. With an Rds(on) of 108mOhm and a continuous drain current of 3.2A, it is optimized for switching and load management applications.

Why Choose This Part

This MOSFET offers a low gate-source threshold voltage of 2.2V, enabling efficient operation with logic-level control signals. The SOT-223 package provides a balance of thermal performance and space savings, supporting up to 2.2W of power dissipation. Additionally, the built-in Zener diode protects the gate against electrostatic discharge and voltage transients up to +/-20V.

Applications

DC-DC Converters
Used as a primary switch or synchronous rectifier in mid-voltage power conversion stages.
High Side Load Switching
Ideal for enabling or disabling power rails in industrial systems where 100V headroom is required.
Motor Control Pre-drivers
Functions as a reliable gate driver stage or small motor switch in brushed DC motor applications.
LED Backlighting
Provides high-voltage switching for LED strings in display or lighting power supplies.

Key Specifications

FET Type N-Channel
Vgs (Max) +/-20V
Technology MOSFET (Metal Oxide)
Mounting Type Surface Mount
Package / Case TO-261-4, TO-261AA
Vgs(th) (Max) @ Id 2.2V @ 250uA
Operating Temperature -55degC ~ 150degC (TJ)
Rds On (Max) @ Id, Vgs 108mOhm @ 3.2A, 10V
Power Dissipation (Max) 2.2W (Ta)
Supplier Device Package SOT-223-4
Gate Charge (Qg) (Max) @ Vgs 7 nC @ 10 V
Drain to Source Voltage (Vdss) 100 V
Input Capacitance (Ciss) (Max) @ Vds 315 pF @ 50 V
Drive Voltage (Max Rds On, Min Rds On) 4.5V, 10V
Current - Continuous Drain (Id) @ 25degC 3.2A (Ta)

Getting Started

When integrating the FDT86106LZ, ensure the SOT-223 tab is soldered to a large copper plane to manage the 2.2W thermal dissipation limit. For high-speed switching, calculate the gate drive requirements based on the total gate charge to minimize switching losses. Verify that the 100V Vds rating provides sufficient margin for inductive voltage spikes in motor or solenoid applications.