Potentiometer 2W 500 Ohm

The Potentiometer 2W 500 Ohm is a rotary variable resistor with a total resistance of 500 Ω and a power rating of 2 W. Its low resistance lets more current flow than common 10 kΩ potentiometers, so it suits adjusting the current of LEDs and small loads, setting transistor bias and trimming low-impedance circuits, and it can also be used as a small rheostat.

Potentiometer 2W 500 Ohm Specifications

• Resistance: 500 Ω across the full track
• Power rating: 2 W
• Type: rotary potentiometer, 3 terminals
• Wiring: two track ends plus the centre wiper
• Current through the full track: 10 mA at 5 V, 24 mA at 12 V
• Pack size: 1 piece

Potentiometer 2W 500 Ohm Applications

• Adjustable current limiting for LEDs and small loads, used as a rheostat
• Transistor and op-amp bias adjustment
• Calibration and trimming in power supply and sensor circuits
• Voltage divider controls in low-impedance circuits
• Electronics lab experiments and repairs

What's in the Box

• 1 × 500 Ω 2 W potentiometer

Tip: The 2 W rating is for the whole track, which is reached at about 31 V across the outer pins (P = V² / R). When you use only the wiper and one end as a variable resistor, keep the current below about 63 mA, and lower at small settings, because only part of the track takes the heat.

Orders placed before 14:00 are ready for pickup the same day. Delivery across Lebanon usually takes 1–3 working days.