VISHAY 249 Series Potentiometer, PCB Mount, Cermet, 100KΩ, 1W

The VISHAY 249 Series PCB Mount Rotary Potentiometer is a high-quality electronic component designed for reliable performance in a wide range of circuit applications. It features a durable cermet (ceramic-metal) resistive element, offering excellent long-term stability and precise resistance control.

Engineered for through-hole mounting, this single-gang, single-turn potentiometer provides a linear track taper, making it ideal for applications requiring straightforward voltage division or signal adjustment. The adjustment is made via a convenient screwdriver slot, allowing for secure setting without the need for a dedicated knob.

With a robust power rating of 1W, it can handle significant electrical loads. The component operates reliably across an extensive temperature range from -55°C to +125°C, ensuring functionality in demanding environments. Its construction meets key electrical safety standards, including a high minimum insulation resistance and dielectric strength.

Key Specifications & Features

• Track Resistance: 100 kΩ ±10% tolerance.
• Resistor Technology: Cermet element for stability and durability.
• Power Rating: 1 Watt.
• Mounting Style: Through-hole, suitable for standard PCB (printed circuit board) installation.
• Adjustment: Single-turn via screwdriver slot.
• Taper: Linear.
• Electrical Ratings: Limiting element voltage of 300V, minimum insulation resistance of 1000MΩ at 500VDC, and a minimum dielectric strength of 750Vrms.
• Environmental Protection: Rated IP50, offering basic protection against dust ingress.
• Temperature Coefficient: ±100ppm/°C, ensuring minimal resistance drift with temperature changes.

This VISHAY potentiometer is a trusted choice for designers and engineers seeking a dependable, specification-compliant variable resistor for prototyping, industrial controls, audio equipment