SMD Resistor 470ohm (471) (0805) (10pcs)

Description

SMD Resistor 470Ω (471) OHM (0805) (10pcs)

The SMD Resistor 470Ω (471) OHM (0805) is a surface-mount device (SMD) resistor with a resistance value of 470 ohms (470Ω). It comes in an 0805 package, making it suitable for high-density PCB designs where space is limited. These resistors are usually sold in packs of 10 pieces, which is convenient for small projects, repairs, or prototyping.

Key Features:

1. Resistance Value:

   • 470Ω (470 ohms).

   • The “471” code is used in the 3-digit resistor code:

     • 47 represents the base value (47).

     • 1 is the multiplier (10¹), so the resistance value is 47 × 10 = 470Ω.

2. Package Size:

   • 0805 size: The dimensions of the package are 0.08″ x 0.05″ (2.0mm x 1.25mm). The 0805 package is compact yet large enough to be handled with standard soldering equipment.

3. Quantity:

   • Supplied in packs of 10 pieces, perfect for small batches or prototyping.

4. Tolerance:

   • Typically ±5%, though the tolerance may vary depending on the manufacturer. This means the actual resistance could differ by up to 5% from the nominal value.

5. Power Rating:

   • 0.125W (1/8 watt), which is the typical power rating for 0805 resistors. Ensure that the power rating matches your circuit’s requirements to avoid overheating and potential damage.

6. Composition:

   • Made from materials like metal oxide, carbon film, or thick film, ensuring reliable performance in various environmental conditions.

Applications:

1. Voltage Dividers:

   • The 470Ω resistor is commonly used in voltage divider circuits, which are used to set specific voltage levels for biasing transistors, op-amps, or other components.

2. Current Limiting:

   • Used in current-limiting applications, such as in LED circuits, where it helps prevent excessive current from flowing through components, ensuring their safe operation.

3. Pull-up/Pull-down Resistors:

   • Common in digital circuits, the 470Ω resistor can be used as a pull-up or pull-down resistor to ensure the proper state of a logic line when no active driver is present.

4. Signal Conditioning:

   • The resistor can be part of signal conditioning circuits, where it’s used in filtering, attenuation, or adjusting the strength of signals in both analog and digital circuits.

5. Filter Circuits:

   • Used in RC (resistor-capacitor) or RLC (resistor-inductor-capacitor) circuits, where it helps shape the frequency response of the circuit, controlling cutoff frequencies for audio, RF, or other signal processing applications.

6. Impedance Matching:

   • The 470Ω resistor can be used for impedance matching in high-frequency applications, such as in communication systems and radio-frequency circuits.

Advantages:

• Compact Size (0805): The 0805 package allows for easy integration into space-constrained designs, making it ideal for high-density PCBs.

• Precision and Stability: SMD resistors like the 470Ω offer stable resistance over time, ensuring consistent circuit performance.

• Reliability: SMD resistors are less prone to damage than through-hole resistors, especially in automated assembly and high-volume manufacturing.

• Cost-Effective: The small size and ease of placement by automated machines make SMD resistors an affordable choice for mass production.