Description

The 3K3 Ohm (3.3K) 1/2W 5% Through Hole Resistor is a commonly used electronic component that plays a crucial role in various circuits requiring current regulation, voltage division, and signal conditioning. With a resistance value of 3.3K ohms (3,300 ohms), a power rating of 1/2 watt (0.5W), and a 5% tolerance, this resistor is suitable for moderate power applications. The through-hole mounting design ensures secure and easy installation on printed circuit boards (PCBs), making it ideal for both prototyping and mass production.

Key Specifications:

• Resistance: 3.3K ohms (3,300 ohms)

  • The 3.3K ohm resistor is often used in circuits that need to limit current or scale down voltage. It is widely used in applications like signal conditioning, filtering, and in voltage divider circuits to set appropriate voltage levels.

• Power Rating: 1/2 watt (0.5W)

  • The 1/2 watt power rating ensures that the resistor can safely dissipate up to 0.5 watts of power without overheating, making it suitable for circuits that operate at low-to-medium power levels.

• Tolerance: ±5%

  • The 5% tolerance indicates that the actual resistance can vary by 5% from the nominal value. For the 3.3K ohm resistor, the resistance could range from 3,135 ohms to 3,465 ohms.

• Mounting Type: Through-hole

  • The through-hole mounting allows the resistor’s leads to pass through holes in the PCB, where they are soldered to form a stable electrical connection. This mounting style is ideal for both development and large-scale manufacturing processes.

Applications:

• Current Limiting:
  The 3.3K ohm resistor is often used to limit the flow of current in a circuit, making it particularly useful in protecting LEDs, transistors, and other sensitive components from excessive current.

• Voltage Regulation:
  This resistor is used in circuits where voltage regulation is necessary. It helps control and stabilize voltage by limiting the amount of current that flows to sensitive components.

• Voltage Divider Circuits:
  The 3.3K ohm resistor is frequently used in voltage divider circuits to scale down higher voltages for use in measuring devices, sensors, or analog-to-digital conversion.

• Signal Processing and Filtering:
  It is used in signal processing applications such as audio amplification, RF circuits, and low-pass filters, where it helps to stabilize signal levels and filter unwanted frequencies.

Physical Characteristics:

• Size:
  The 1/2 watt resistor typically measures around 1/4 inch (6.35 mm) in length and 1/8 inch (3.18 mm) in diameter. The exact size may vary slightly based on the manufacturer.

• Construction:
  The resistor has a cylindrical body with metal leads extending from both ends. These leads pass through holes in the PCB and are soldered to create a secure and stable electrical connection.

Summary:
The 3K3 Ohm (3.3K) 1/2W 5% Through Hole Resistor is a reliable and versatile component used in various electronic applications, including current limiting, voltage regulation, voltage dividers, and signal conditioning. With its 3.3K ohm resistance, 1/2 watt power rating, and 5% tolerance, it is well-suited for low-to-medium power circuits. The through-hole mounting design ensures easy and secure integration into PCBs, making it ideal for both prototyping and production applications. Whether used in LED circuits, voltage regulation systems, or signal processing applications, this resistor delivers consistent performance and reliability across various electronic systems.