Resistor 0.5W 300 ohm (5 pcs)

The Resistor 0.5W 300 ohm is a through-hole fixed resistor with a resistance of 300 Ω and a power rating of 0.5 W, sold in a pack of 5. It is a practical value for limiting the current of LEDs and 7-segment displays on 5 V and 3.3 V supplies, and for protecting microcontroller pins in test circuits.

Resistor 0.5W 300 ohm Specifications

• Resistance: 300 Ω
• 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 300 ohm Applications

• LED current limiting, about 10 mA for a red LED on 5 V
• Segment resistors for 7-segment LED displays
• Protecting Arduino and ESP32 I/O pins
• Series resistors in transistor and signal circuits
• Electronics education and prototyping

What's in the Box

• 5 × 300 Ω 0.5 W resistors

Tip: Resistors have no polarity, so they can be fitted either way round. With 300 Ω, the 0.5 W limit is reached at about 12 V across the resistor, so check the power (P = V² / R) before placing it directly across a 12 V supply.

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