A 47 ohm resistor is a passive electronic component that limits electrical current flow to 47 ohms of resistance.

Technical Specifications

Resistance Value: 47 ohms (Ω)

Color Code (4-band): Yellow, Violet, Black, Gold (for 5% tolerance) or Yellow, Violet, Black, Black, Brown (for 5-band 1%)

Tolerance: Typically 5%

Power Rating: Commonly 1/4 Watt (0.25W)

Material Type: Carbon film or metal film

Mounting Style: Axial through-hole (PTH) or Surface Mount Device (SMD) [1, 2, 3]

Common Uses

Impedance Matching: Used in select audio circuits and feedback networks. [1]

Current Limiting: Protecting LEDs or active components from excess current.

Pull-up/Pull-down: Setting logic levels in digital circuits.

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47 ohm Resistor

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