Resistor 0.5W 820 ohm (5 pcs)

The Resistor 0.5W 820 ohm is a through-hole fixed resistor with a resistance of 820 Ω and a power rating of 0.5 W (1/2 W), sold in a pack of 5. It is a handy value for limiting LED current on 9 V and 12 V supplies, for transistor base resistors and for voltage dividers, and the half-watt rating gives extra margin over standard quarter-watt parts.

Resistor 0.5W 820 ohm Specifications

• Resistance: 820 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 820 ohm Applications

• Current limiting for indicator LEDs on 9 V and 12 V circuits
• Base resistors for NPN transistors such as the BC547 or 2N2222
• Voltage dividers and biasing networks
• Pull-up and pull-down resistors where a stronger pull is needed
• Electronics education and prototyping

What's in the Box

• 5 × 820 Ω 0.5 W resistors

Tip: With a red LED (about 2 V) on a 12 V supply, an 820 Ω resistor gives about 12 mA. Resistors have no polarity, and with 820 Ω the 0.5 W limit is reached at about 20 V across the resistor (P = V² / R).

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