Dell Laptop Charger (Big Pin)

Dell Laptop Charger (Big Pin, 7.4mm) is a durable and reliable standard power adapter designed to supply stable DC power and recharge the internal batteries of classic Dell Latitude, Inspiron, and Precision series notebooks.

Key Features

• Built-In IC Protection: Engineered with internal safeguards against short circuits, overcurrent, overvoltage, and thermal overload to protect sensitive laptop components.

• Barrel Plug Design: Features the classic 7.4mm outer / 5.0mm inner diameter barrel connector (often featuring a central pin) designed for secure physical connection.

• LED Power Indicator: Many OEM versions include a small LED indicator ring or light on the adapter brick to verify active AC power flow.

• Auto-Switching Input: Globally compatible with auto-switching input frequencies and voltages, making it ideal for travel.

• Robust Strain Relief: Thick-gauge cabling reinforced at both the AC brick and DC connector junctions to prevent fraying from daily winding and unwinding.

Specifications

• Product Type: AC-to-DC Laptop Power Adapter

• Power Output Options: Typically 65W ($19.5\text{V} \times 3.34\text{A}$) or 90W ($19.5\text{V} \times 4.62\text{A}$) depending on sub-model requirements

• Input Voltage Range: 100V – 240V AC

• Input Frequency: 50Hz / 60Hz (auto-sensing)

• Output Voltage: 19.5V DC

• Connector Tip Size: 7.4 mm $\times$ 5.0 mm (Big Pin with center needle)

• Cable Length: Approx. 1.5m to 1.8m (DC side), plus standard detachable 3-prong clover/mickey-mouse AC power cord

• Physical Dimensions (Brick): Approx. $10.7\text{ cm} \times 4.7\text{ cm} \times 2.8\text{ cm}$ (varies slightly by wattage rating)

• Net Weight: Approx. $300\text{ g} – 450\text{ g}$ (excluding power cord)

• Casing Material: Flame-retardant high-impact thermoplastic housing