IRF3205S N-Channel Power MOSFET TO-263

IRF3205S N-Channel Power MOSFET (TO-263) delivers high-efficiency switching and low conduction losses. Designers use it for automotive, DC-DC converters, motor control, and high-current switching applications where compact TO-263 packaging and low RDS(on) improve performance.

Key Features:

• Low On-Resistance: R_DS(on) typically ≤ 8 mΩ @ V_GS = 10 V, enabling efficient conduction.
• High Current Capability: Supports continuous drain current up to 110 A with proper thermal management.
• Fast Switching: Optimized for low gate charge and reduced switching losses.
• TO-263 Surface-Mount Package: Compact footprint for high-density power designs.
• High Avalanche Energy: Rugged design ensures reliability in demanding conditions.
• Low Gate Charge: Reduces drive requirements for efficient control circuitry.

Technical Specifications:

• Drain-Source Voltage (V_DSS): 55 V
• Continuous Drain Current (I_D): 110 A (at TC = 25 °C)
• On-Resistance (R_DS(on)): ≤ 8 mΩ max @ V_GS = 10 V
• Gate Threshold Voltage (V_GS(th)): 2.0 V to 4.0 V
• Total Gate Charge (Q_g): Typ ~67 nC @ V_GS = 10 V
• Input Capacitance (C_iss): ~6100 pF
• Operating Junction Temperature: -55 °C to +175 °C
• Gate-Source Voltage Range (V_GS): ±20 V

Mechanical Specifications:

• Package: TO-263 (D²PAK) surface-mount power package
• Mounting: SMD reflow soldering or wave solder with heatsink pad
• Lead Finish: Tin-plated leads for solderability and durability
• Body Material: Molded epoxy for electrical insulation

Dimensions:

• Body Width: ~10.1 mm
• Body Length: ~9.9 mm
• Height: ~4.5 mm
• Lead Pitch: ~2.54 mm typical

Pinout and Wiring:

• Pin 1: Gate – drive input for switching
• Pin 2 (Tab + Pins): Drain – main current-carrying terminal, connected to heat dissipation pad
• Pin 3: Source – return path to ground or load
• Wiring Note: Use short, wide traces for drain and source to minimize resistance and inductance

Datasheet Reference:

• IRF3205S datasheet

Applications:

• Automotive Systems: Power management and load switching
• DC-DC Converters: Efficient high-current switching
• Motor Drivers: Suitable for brushed and brushless DC motor control
• UPS and Inverters: Use in power conversion and backup systems
• Battery Protection: High-current discharge and charging paths

Equivalent Models:

• IRF3205: Same die in TO-220 package
• AUIRFS3207: Automotive-qualified higher-current alternative
• STP75NF75: N-channel MOSFET with similar voltage and current ratings

Package Includes:

• 1 x IRF3205S N-Channel Power MOSFET (TO-263)