Resistor 0.5W 1.8K ohm (5 pcs)

The Resistor 0.5W 1.8K ohm is a through-hole fixed resistor with a resistance of 1.8 kΩ and a power rating of 0.5 W, sold in a pack of 5. It is a handy value for transistor base resistors and indicator LEDs on 9 V to 12 V supplies, and together with a 3.3 kΩ resistor it forms a simple divider that drops a 5 V signal to about 3.2 V for 3.3 V boards such as the ESP32.

Resistor 0.5W 1.8K ohm Specifications

• Resistance: 1.8 kΩ (1,800 ohms)
• Power rating: 0.5 W (1/2 W)
• Type: fixed resistor, axial leads, through-hole
• Fits: breadboards, perfboards and PCBs
• Pack size: 5 pieces

Resistor 0.5W 1.8K ohm Applications

• 5 V to 3.3 V level-shifting dividers, for example for the HC-SR04 echo pin
• Base resistors for NPN and PNP transistors
• Current limiting for indicator LEDs on 9 V and 12 V circuits
• Pull-up and pull-down resistors
• Electronics education and prototyping

What's in the Box

• 5 × 1.8 kΩ 0.5 W resistors

Tip: Resistors have no polarity, so they can be fitted either way round. With 1.8 kΩ, the 0.5 W limit is reached at about 30 V across the resistor, so check the power (P = V² / R) only when working with higher voltages.

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