Resistor 0.5W 2.2 ohm (5 pcs)

The Resistor 0.5W 2.2 ohm is a low-ohm through-hole fixed resistor with a resistance of 2.2 Ω and a power rating of 0.5 W, sold in a pack of 5. Its small value means only a small voltage is lost across it, so it is a good choice for current sensing, power LED current limiting and series resistors in low-voltage power lines.

Resistor 0.5W 2.2 ohm Specifications

• Resistance: 2.2 Ω
• Power rating: 0.5 W (1/2 W)
• Maximum current at 0.5 W: about 477 mA (P = I² × R)
• Series: standard E6 value
• Type: fixed resistor, axial leads, through-hole
• Fits: breadboards, perfboards and PCBs
• Pack size: 5 pieces

Resistor 0.5W 2.2 ohm Applications

• Current-sense resistor for measuring load current
• Current limiting for power LEDs on 3.3 V and 5 V supplies
• Emitter resistors in audio and small power transistor stages
• Replacement resistor in chargers and power adapters
• Prototyping and testing

What's in the Box

• 5 × 2.2 Ω 0.5 W resistors

Tip: To read current, measure the voltage across the resistor: 0.22 V means 100 mA. The 0.5 W limit is reached at about 477 mA (P = I² × R), so use a higher-wattage resistor for bigger loads.

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