20-Pack 470K Ohm Carbon Film Resistor THT 1/4W 5% 0.25W Ø2.3x6mm

470 kΩ 1/4 W carbon film resistors, ±5% tolerance, through-hole with axial leads. A high E12 value, suited to low-power measurement dividers, biasing of high-impedance inputs and RC networks. Pack of 20.

Main features

• 470 kΩ value with ±5% tolerance (4-band colour code)
• Carbon film on a ceramic core, tan body
• 0.25 W (1/4 W) rating, the standard size for signal circuits
• Compact 2.3 x 6 mm body with axial leads, suitable for breadboard, stripboard and PCB
• No polarity: can be fitted either way round
• Supplied on tape

Technical specifications

• Value: 470 kΩ
• Tolerance: ±5%
• Rated power: 0.25 W (1/4 W)
• Technology: carbon film
• Max. working voltage: 250 V DC
• Operating limit: the working voltage (250 V) is reached before the rated power; at 250 V about 0.53 mA and 0.13 W
• Colour code: yellow, violet, yellow, gold
• Mounting: through-hole (THT), axial leads
• Body size: Ø 2.3 x 6 mm

Colour code

Usage tips

• To read a voltage higher than an ADC input allows, the 470 kΩ forms a divider with a lower resistor to GND: with 100 kΩ, 12 V becomes about 2.1 V and the divider draws only about 21 µA, ideal for battery monitoring.
• With such high-value dividers the ADC reading may be unstable: a 100 nF capacitor between the divider output and GND makes it steadier.
• With a capacitor it forms a time constant τ = R x C: 470 kΩ x 1 µF ≈ 0.47 s, useful for delays and timing.
• At this value the limit is the working voltage rather than the power: with 250 V across, about 0.53 mA flows and only about 0.13 W is dissipated.
• Resistors have no polarity: read the code starting from the yellow band near the edge, with the gold band last.

Package contents

• 20 x 470 kΩ 1/4 W ±5% resistors

Typical uses

• Dividers for measuring battery and power supply voltages with an ADC
• Biasing of high-impedance inputs, op-amps and transistors
• RC networks, delays and timing
• Arduino and ESP32 projects, school labs and repairs