SMD Resistor 1ohm (1R0) (0805) (10pcs)

Description

SMD Resistor 1Ω (1R0) OHM (0805) (10pcs)

The SMD Resistor 1Ω (1R0) OHM (0805) is a surface-mount device (SMD) resistor with a resistance value of 1 ohm (1Ω). It is designed in an 0805 package, commonly used in high-density and compact electronic circuits. The resistor is typically sold in packs of 10 pieces, which makes it suitable for prototyping, small repairs, or production runs.

Key Features:

1. Resistance Value:

   • 1Ω (1 ohm).

   • The “1R0” code represents the resistance value in the standard 3-digit code format:

     • 1 represents the base value (1).

     • R is used to indicate a decimal point (rather than a multiplier).

     • 0 signifies the multiplier (10⁰), so the resistance is simply 1Ω.

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 a popular size for compact designs where space is constrained.

3. Quantity:

   • Supplied in 10 pieces, perfect for small projects or prototyping.

4. Tolerance:

   • Typically ±5%, which means the actual resistance can vary by up to 5% from the nominal value of 1Ω. Some manufacturers may offer lower tolerance options.

5. Power Rating:

   • 0.125W (1/8 watt), which is typical for 0805 resistors. It’s important to ensure that the power rating is sufficient for your application to avoid overheating.

6. Composition:

   • Made from materials like metal oxide, carbon film, or thick film, ensuring reliable and stable performance across a range of temperatures and conditions.

Applications:

1. Current Sensing:

   • 1Ω resistors are commonly used for current sensing applications where a small resistance is required to measure or regulate current. The voltage drop across the resistor is proportional to the current, and can be measured to determine current flow.

2. Short Circuit Protection:

   • Used in short circuit protection circuits, where the low resistance can help detect excessive current and trigger protective measures.

3. Current Limiting:

   • Can be used in circuits that require current limiting, such as in LEDs or other sensitive components, where you need to control how much current flows to prevent damage.

4. Power Dissipation:

   • Can be used to dissipate power in circuits, especially in high-power applications, although care must be taken to ensure the resistor is within its power rating.

5. Voltage Dividers:

   • Can be used in voltage divider circuits, although its low resistance value makes it less common for high-precision voltage dividers.

6. Filters and Signal Processing:

   • 1Ω resistors can be used in filters for setting cutoff frequencies in various signal processing applications, especially in audio circuits or RF circuits where small resistances are required.

Advantages:

• Compact Size (0805): The 0805 package is small and ideal for high-density applications, allowing it to fit into compact PCB layouts.

• Precise Resistance: SMD resistors like the 1Ω provide accurate and stable resistance values, which is critical for applications like current sensing and current limiting.

• Reliability: SMD resistors are more durable and reliable compared to their through-hole counterparts since they are less prone to damage during handling or soldering.

• Cost-Effective: These resistors are inexpensive and are ideal for high-volume production, making them an attractive choice for both hobbyists and manufacturers.