SMD Resistor 4.7Kohm (472) (0805) (10pcs)

Description

SMD Resistor 4.7KΩ (472) OHM (0805) (10pcs)

The SMD Resistor 4.7KΩ (472) OHM (0805) is a surface-mount device (SMD) resistor with a resistance value of 4,700 ohms (4.7KΩ). It comes in an 0805 package size, making it compact and suitable for use in high-density circuit designs. This resistor is supplied in packs of 10 pieces, ideal for small-scale applications, repairs, or prototyping.

Key Features:

1. Resistance Value:

   • 4.7KΩ (4,700 ohms).

   • The “472” code follows the 3-digit resistor code:

     • 47 represents the base value (47).

     • 2 is the multiplier (10²), so the resistance value is 47 × 10² = 4,700Ω (4.7KΩ).

2. Package Size:

   • 0805: The 0805 package has dimensions of 0.08″ x 0.05″ (2.0mm x 1.25mm). This size is ideal for modern, space-constrained PCB designs, balancing compactness with ease of handling.

3. Quantity:

   • Supplied in packs of 10 pieces, making it ideal for small projects, repairs, or prototyping needs where multiple resistors are required.

4. Tolerance:

   • Typically ±5%, meaning the actual resistance value may vary by up to 5% from the nominal value. Some versions with ±1% tolerance may also be available depending on the manufacturer.

5. Power Rating:

   • 0.125W (1/8 watt) is the typical power rating for 0805 resistors. It is suitable for low-power applications, but make sure it is within the power limits of your circuit to avoid failure due to excessive power dissipation.

6. Composition:

   • Usually made from metal oxide, carbon film, or thick film materials, providing stability and durability for a wide range of applications.

Applications:

1. Current Limiting:

   • Commonly used in LED circuits or other low-power applications to limit the current and protect sensitive components from damage due to excessive current flow.

2. Voltage Dividers:

   • Can be used in voltage divider circuits, where a precise voltage is needed to bias transistors, op-amps, or other analog components.

3. Signal Conditioning:

   • In signal conditioning circuits, the 4.7KΩ resistor can be used to filter, attenuate, or adjust signals to match other circuit elements’ voltage levels.

4. Pull-up/Pull-down Resistors:

   • Pull-up or pull-down resistors are often used in digital circuits to ensure the correct logic level on signal lines when no active device is driving the line.

5. Feedback and Biasing Circuits:

   • Used in feedback loops of amplifiers and other active circuits to stabilize operation or control the gain of the circuit.

6. Filtering:

   • Can be part of RC (Resistor-Capacitor) or RLC (Resistor-Inductor-Capacitor) filter circuits, especially for low-pass or high-pass filters, defining the cutoff frequencies for audio or signal applications.

Advantages:

• Compact Size (0805): The 0805 package is small and space-efficient, making it perfect for high-density PCBs commonly found in modern electronic devices.

• Cost-Effective: SMD resistors are inexpensive to produce, making them ideal for both small-scale prototyping and high-volume manufacturing.

• High Reliability: These resistors are more reliable than through-hole components, especially when handled by automated assembly, as they are less prone to damage.

• Stable Performance: SMD resistors provide consistent resistance values over time, making them suitable for applications where stability and reliability are critical.