LQH3NPN3R3NM0L
Shielded wirewound ferrite inductors for power applications
Manufacturer： murata
series introduction
# Introduction to the LQH3NPN3R3NM0L Product Series
## 1. Overview
The LQH3NPN3R3NM0L product series belongs to the category of inductors, which are fundamental passive electronic components widely used in various electronic circuits. These inductors play a crucial role in energy storage, filtering, and impedance matching, making them essential for the proper functioning of many electronic devices.
## 2. Key Specifications
### Inductance Value
The "3R3" in the part number indicates an inductance value of 3.3 μH (microhenries). Inductance is a measure of the ability of an inductor to store energy in a magnetic field when an electric current flows through it. A 3.3 μH inductance is suitable for a wide range of applications, including power supply circuits, RF (radio frequency) circuits, and signal filtering.
### Tolerance
The specific tolerance of the LQH3NPN3R3NM0L series is determined by the manufacturer's specifications. A typical tolerance for inductors in this class might be around ±5% or ±10%. Tolerance indicates the allowable deviation from the nominal inductance value. For example, with a ±5% tolerance on a 3.3 μH inductor, the actual inductance could range from 3.135 μH to 3.465 μH.
### DC Resistance (DCR)
The DC resistance of the inductor is an important parameter as it affects the power loss in the circuit. A lower DCR means less power is dissipated as heat when current flows through the inductor. The exact DCR value for the LQH3NPN3R3NM0L series will be provided in the product datasheet and is typically in the milliohm range.
### Current Rating
The inductor has a specified maximum current rating, which indicates the maximum amount of direct current (DC) that the inductor can handle without significant degradation of its performance. Exceeding the current rating can lead to overheating, increased DCR, and a change in the inductance value. The current rating of the LQH3NPN3R3NM0L series is designed to meet the requirements of common electronic applications.
## 3. Physical Characteristics
### Package Size
The LQH3NPN3R3NM0L series comes in a specific package size, which is optimized for surface - mount technology (SMT). SMT components are widely used in modern electronics manufacturing due to their small size, high - density mounting capabilities, and compatibility with automated assembly processes. The compact package size allows for efficient use of printed circuit board (PCB) space.
### Construction
These inductors are typically constructed using high - quality magnetic materials and conductive windings. The magnetic core material is carefully selected to provide high magnetic permeability, which helps to increase the inductance value while minimizing the physical size of the inductor. The windings are made of copper or other highly conductive materials to reduce resistance and improve performance.
## 4. Applications
### Power Supply Circuits
In power supply circuits, the LQH3NPN3R3NM0L inductors are used for energy storage and filtering. They can smooth out the output voltage of a switching power supply by storing energy during the on - time of the switching cycle and releasing it during the off - time. This helps to reduce voltage ripple and improve the stability of the power supply.
### RF Circuits
In RF applications, inductors are used for impedance matching and filtering. The 3.3 μH inductance value can be used in RF circuits to tune the frequency response, filter out unwanted frequencies, and match the impedance between different stages of the circuit. This is important for ensuring efficient signal transmission
Images for reference
LQH3NPN Series
LQH3NP Series Bottom
LQH3NP Series Side 1