Resistor 0.25W 1.8K ohm (10 pcs)

The Resistor 0.25W 1.8K ohm is a through-hole fixed resistor with a resistance of 1.8 kΩ and a power rating of 0.25 W (1/4 W), sold in a pack of 10. It is a common E12 value; paired with a 3.3 kΩ resistor it forms a divider that brings a 5 V signal down to about 3.2 V, for example from an Arduino TX pin to an ESP32 RX pin. It is also used for LED indicators and transistor bases.

Resistor 0.25W 1.8K ohm Specifications

• Resistance: 1.8 kΩ (1,800 ohms)
• Power rating: 0.25 W (1/4 W)
• Type: fixed resistor, axial leads, through-hole
• Colour code: brown, grey, red (4-band) or brown, grey, black, brown (5-band), followed by the tolerance band
• Standard value: E12 and E24 series
• Fits: breadboards, perfboards and PCBs
• Pack size: 10 pieces

Resistor 0.25W 1.8K ohm Applications

• 5 V to 3.3 V voltage dividers with a 3.3 kΩ resistor
• LED indicators on 12 V (about 5.6 mA with a red LED)
• Base resistors for small transistors
• Voltage dividers for analog inputs
• Electronics education and prototyping

What's in the Box

• 10 × 1.8 kΩ 0.25 W resistors

Tip: For a 5 V to 3.3 V divider, connect 1.8 kΩ from the 5 V signal to the input pin and 3.3 kΩ from the input pin to ground. With 1.8 kΩ, the 0.25 W limit is reached at about 21 V across the resistor.

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