Description

Here’s a detailed description for the 4.7K Ohm (4.7kΩ) 2W 1% Axial Through Hole Resistor - MOF:

4.7K Ohm (4.7kΩ) 2W 1% Axial Through Hole Resistor - MOF

The 4.7K Ohm (4.7kΩ) 2W 1% Axial Through Hole Resistor - MOF is a high-precision, medium-power resistor designed for applications that require accurate resistance values and moderate power handling. Featuring Metal Oxide Film (MOF) technology, it delivers high stability, low noise, and reliable performance across a wide range of circuits. With a 1% tolerance, this resistor ensures tight resistance accuracy, making it ideal for precision applications in both professional and hobbyist settings.

Resistance Value (4.7K Ohms):

The 4,700 ohm (4.7kΩ) resistance value is versatile and widely used in a variety of electronic circuits. It is ideal for applications that require moderate resistance to regulate current flow, divide voltages, or provide specific biasing for active components.

Common uses include:

• Voltage Divider Networks: The 4.7kΩ resistor is often used in voltage divider circuits to generate specific voltage levels. This is crucial in applications such as sensor interfacing, signal scaling, or setting reference voltages for analog-to-digital conversion (ADC) systems.
• Signal Conditioning: It works well in RC (Resistor-Capacitor) or RL (Resistor-Inductor) networks, where the resistor helps control the time constant of filters for signal processing, audio circuits, and RF circuits.
• Biasing: The 4.7kΩ resistor is commonly used in biasing circuits for transistors and op-amps, ensuring that these components operate at their proper points within the circuit.

Power Rating (2W or 2 Watts):

The 2W power rating means this resistor can safely dissipate up to 2 watts of power. This makes it suitable for medium-power applications where current or voltage might be higher than in low-power circuits but does not require high power handling.

Applications include:

• Current Limiting: In current-limiting circuits, the 4.7kΩ 2W resistor helps protect sensitive components by limiting the amount of current that flows through the circuit. It’s ideal for use in LED drivers, voltage regulators, and low-power motor drivers.
• Power Regulation: The 2W rating allows the resistor to handle the power dissipation that occurs in voltage regulation and filtering applications where moderate power handling is necessary without excessive heating.

The 2W rating also makes this resistor a good choice for power supplies, signal conditioning circuits, and voltage divider applications where moderate power dissipation is required.

Tolerance (1%):

The 1% tolerance means that the actual resistance will be within ±1% of the nominal 4.7kΩ value. This tight tolerance ensures high accuracy in circuits where small variations in resistance can significantly impact performance.

Ideal for:

• Precision Feedback Circuits: In feedback loops for op-amps or transistor amplifiers, the 1% tolerance ensures the stability of gain and feedback responses, which is critical in signal amplifiers, oscillators, and control systems.
• Voltage Regulation: For voltage regulation systems and calibration circuits, precise resistance values ensure that the circuit maintains accurate output voltages, preventing unwanted fluctuations.

Axial Through-Hole Mounting:

This resistor features an axial through-hole design, with leads that extend from both ends. These leads are inserted through holes in a printed circuit board (PCB) and soldered on the opposite side. The through-hole design is durable and ensures secure mechanical and electrical connections, making it ideal for medium-power circuits where mechanical stability is crucial.

The axial mounting style also allows for easy handling, soldering, and replacement, making it a great choice for prototyping, repair work, and testing.

Material and Durability – Metal Oxide Film (MOF):

The Metal Oxide Film (MOF) construction provides several key benefits:

• High Voltage Resistance: MOF resistors can handle higher voltages compared to carbon-based resistors, making them suitable for high-voltage circuits.
• Better Thermal Stability: MOF resistors offer excellent resistance to temperature fluctuations, maintaining their stability even under varying conditions.
• Durability: These resistors are less prone to thermal overload and mechanical stress, ensuring long-lasting and reliable performance in power-sensitive applications.

Compared to other resistor types, MOF resistors have a lower temperature coefficient, meaning they maintain a more consistent resistance value across a wider temperature range. This is beneficial for high-precision or high-stability applications.

Applications:

• Current Limiting: The 4.7kΩ 2W resistor is ideal for current-limiting circuits, where it regulates the flow of current through sensitive components like LEDs and power transistors. It is suitable for power supplies, LED drivers, and motor drivers that require moderate current handling.

• Voltage Divider Networks: As part of a voltage divider, the 4.7kΩ resistor helps set specific voltage levels. It’s often used in sensor interfaces, measurement systems, voltage regulation, and signal scaling applications.

• Signal Processing and Filtering: In RC or RL filter circuits, the 4.7kΩ resistor contributes to shaping signal responses and filtering unwanted frequencies. This makes it useful in audio processing, RF circuits, and signal conditioning applications.

• Biasing Circuits: This resistor is also used for setting the biasing point of transistors or op-amps. In amplifier circuits, oscillators, and voltage regulators, it helps stabilize the operation of active components.

• Power Supply Regulation: The 2W power rating ensures the resistor can handle moderate power dissipation in voltage regulation and power conversion circuits, such as DC-DC converters and linear regulators.

• Feedback and Control Systems: In feedback loops for op-amp circuits or control systems, the 1% tolerance ensures that the resistor maintains accurate gain and response, helping to stabilize the system and prevent errors.

Ease of Handling and Repair:

With its axial through-hole design, the 4.7kΩ 2W resistor is straightforward to handle, solder, and replace. This makes it ideal for prototyping, testing, and field repairs. Additionally, the MOF construction ensures that the resistor is durable and can withstand thermal and mechanical stresses during the soldering process or in operating environments.

In Summary:

The 4.7K Ohm (4.7kΩ) 2W 1% Axial Through Hole Resistor - MOF is a high-precision, medium-power resistor designed for accurate resistance in moderate power circuits. With its 1% tolerance, 2W power rating, and Metal Oxide Film (MOF) construction, it is perfect for applications in voltage dividers, signal processing, current limiting, biasing circuits, and power regulation. The axial through-hole design ensures mechanical strength and reliable electrical connections, making it an excellent choice for both prototype designs and production-level applications.

This resistor provides consistent performance, reliable operation, and durability in high-precision circuits that require moderate power handling.