| Allicdata Part #: | KNP-25JR-52-4R7-ND |
| Manufacturer Part#: |
KNP-25JR-52-4R7 |
| Price: | $ 0.01 |
| Product Category: | Resistors |
| Manufacturer: | Yageo |
| Short Description: | RES WW 1/4W 5% AXIAL |
| More Detail: | 4.7 Ohms ±5% 0.25W, 1/4W Through Hole Resistor Axi... |
| DataSheet: |  KNP-25JR-52-4R7 Datasheet/PDF |
| Quantity: | 1000 |
| 5000 +: | $ 0.00979 |
| Series: | KNP |
| Packaging: | Tape & Box (TB) |
| Part Status: | Active |
| Resistance: | 4.7 Ohms |
| Tolerance: | ±5% |
| Power (Watts): | 0.25W, 1/4W |
| Composition: | Wirewound |
| Features: | Flame Retardant Coating, Safety |
| Temperature Coefficient: | ±300ppm/°C |
| Operating Temperature: | -40°C ~ 200°C |
| Package / Case: | Axial |
| Supplier Device Package: | Axial |
| Size / Dimension: | 0.098" Dia x 0.248" L (2.50mm x 6.30mm) |
| Height - Seated (Max): | -- |
| Number of Terminations: | 2 |
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Through Hole Resistors are robust electrical components which are designed to precisely control the electrical power delivery system. KNP-25JR-52-4R7 is one common type of through hole resistor and has several different application fields and working principles.
The KNP-25JR-52-4R7 is a metal oxide film resistor, also known as a “five watt” type resistor. It is designed for use in AC or DC mains applications. The main purpose of this resistor is to control current and voltage precisely, preventing electrical and mechanical damage due to overcurrent or voltage drop. The resistor is composed of a metal oxide film, which is the substrate for the resistor element. It has four or more wires, depending on the application field and resistance value.
The KNP-25JR-52-4R7 is used in many applications. In AC mains applications, it can be used for filtering, EMI/RFI, and power regulation. In DC applications, it can be used for current stabilization and for controlling the charging of batteries or capacitors. In signal circuits, the resistor can be used to set the gain or slew rate of an amplifier, or to filter out noise or ripple. In high frequency applications, the resistor can be used to match impedances, absorb voltage spikes, and reduce EMI/RFI.
The working principle of the KNP-25JR-52-4R7 is quite simple. When the voltage is applied across the resistor, the metal oxide film begins to conduct. This creates a current, which flows through the resistor and causes it to heat up. If the voltage increases, the current and heating effect both increase, resulting in increased resistance. The resistance of the resistor is determined by the thickness of the metal oxide film, which means that if the film is thicker, the resistor will have higher resistance.
In terms of safety, the KNP-25JR-52-4R7 is quite reliable. The resistor is designed to operate in temperatures up to 160 degrees Celsius, which ensures that it won’t overheat. It also has a built-in fuse that will trip if the current rises too high. This ensures that the resistor will not be destroyed due to a sudden increase in current.
The KNP-25JR-52-4R7 is a reliable and durable through hole resistor with a variety of application fields and working principles. It can be used in AC mains applications, DC applications, signal circuits, and high frequency applications. Its metal oxide film substrate provides an efficient way to control current and voltage, and its built-in fuse ensures that it won’t be destroyed due to a sudden surge in current.
The specific data is subject to PDF, and the above content is for reference
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