Understanding the specifications of electronic components is crucial for any engineer or hobbyist. This article delves into the intricacies of the 4r7 Inductor Value Datasheet, a document that provides vital information for anyone working with 4.7 microhenry (µH) inductors.
What is a 4r7 Inductor Value Datasheet and How Is It Used?
A 4r7 Inductor Value Datasheet is a technical document that outlines the key electrical characteristics and performance parameters of an inductor with a nominal inductance value of 4.7 microhenrys. This value, represented as "4r7," signifies its ability to store energy in a magnetic field when an electric current flows through it. These datasheets are indispensable for selecting the right inductor for a specific circuit application. They help engineers ensure that the chosen inductor will perform as expected, contributing to the overall functionality and reliability of the electronic device.
The information contained within a 4r7 Inductor Value Datasheet typically includes several critical parameters:
- Inductance Tolerance: This specifies the acceptable deviation from the nominal 4.7 µH value.
- DC Resistance (DCR): The resistance of the inductor's winding, which affects power loss and efficiency.
- Saturation Current: The maximum current the inductor can handle before its inductance significantly decreases.
- Self-Resonant Frequency (SRF): The frequency at which the inductor's inherent parasitic capacitance causes it to behave like a resonant circuit.
- Q Factor: A measure of the inductor's efficiency, indicating its ability to store energy relative to the energy it dissipates.
These datasheets are used in a variety of ways during the design and development process. For instance, in a power supply circuit, an engineer might consult the 4r7 Inductor Value Datasheet to select an inductor that can handle the required current without saturating. In a filter circuit, the SRF and Q factor would be critical for achieving the desired filtering characteristics. The datasheet serves as a blueprint, enabling designers to make informed decisions and optimize their circuits. Here's a simplified look at some typical data you might find:
| Parameter | Typical Value Range |
|---|---|
| Inductance | 4.7 µH ± 10% |
| DCR (max) | 0.1 Ω |
| Saturation Current (typ) | 500 mA |
By cross-referencing the requirements of your circuit with the detailed specifications in the 4r7 Inductor Value Datasheet, you can ensure optimal performance and prevent potential issues. Use the comprehensive information found in the datasheet to make precise component selections for your next project.