220Ω 1/4W Carbon Film Resistor ±5% Through Hole Axial Lead Pack

220Ω 1/4W Carbon Film Resistor – ±5% Through Hole Axial Lead Pack

The 220Ω Carbon Film Resistor is the classic LED current-limiting resistor for 5V circuits, and one of the most-used values in beginner and advanced electronics alike. Rated at 1/4W (0.25W) with ±5% tolerance, it provides reliable, consistent resistance in a compact axial through-hole package.

Key Specifications

• Resistance: 220Ω (ohms)
• Power Rating: 1/4W (0.25W)
• Tolerance: ±5% (Gold band)
• Type: Carbon Film
• Mounting: Through Hole, Axial Lead
• Temperature Coefficient: ±200 ppm/°C typical
• Operating Temperature: −55°C to +155°C

Compatibility & Use Cases

The 220Ω resistor is the go-to current limiter for standard LEDs on Arduino, ESP32, Raspberry Pi, and other 5V/3.3V GPIO outputs. Common applications include:

• LED current limiting from 5V GPIO pins (~20mA forward current)
• Status indicator LED circuits on breadboards and PCBs
• Signal line series termination to reduce ringing
• Base resistor for low-gain transistor switching
• Voltage divider and attenuator networks

Every electronics kit needs a generous supply of 220Ω resistors — they’re the first component you reach for when building any LED circuit.

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