LQM18FN1R0M00

Compact multilayer shielded power inductors for SMD applications

Manufacturer: murata

series introduction

# Introduction to the LQM18FN1R0M00 Product Series

## Overview
The LQM18FN1R0M00 belongs to a specialized and high - performance product series, primarily designed for use in a wide range of electronic circuits. This series is engineered to meet the demanding requirements of modern electronic devices, offering reliable and efficient performance in various applications.

## Key Features

### 1. Inductance Value
The "1R0" in the model number indicates an inductance value of 1.0 μH. This specific inductance is carefully calibrated to provide the appropriate impedance and filtering characteristics for many electronic circuits. It allows for precise control of the flow of alternating current (AC) while having minimal impact on direct current (DC), making it suitable for applications where signal integrity and power management are crucial.

### 2. Tolerance
The "M" in the model number represents a tolerance of ±20%. This tolerance level provides a reasonable balance between cost - effectiveness and performance accuracy. In practical applications, it means that the actual inductance value of the component can vary within the range of 0.8 μH to 1.2 μH. This level of tolerance is acceptable for many general - purpose electronic circuits, where small variations in inductance do not significantly affect the overall functionality of the system.

### 3. Size and Package
The LQM18FN1R0M00 is typically available in a compact surface - mount package. This form factor is highly advantageous in modern electronic designs, as it allows for high - density PCB (Printed Circuit Board) layouts. The small size not only saves valuable board space but also reduces the overall weight of the electronic device, which is particularly important in portable and miniaturized applications such as smartphones, tablets, and wearables.

### 4. High - Frequency Performance
This product series is optimized for high - frequency operation. It exhibits low resistance and excellent self - resonant frequency (SRF) characteristics. The low resistance helps to minimize power losses in the circuit, improving the overall efficiency of the system. The high SRF allows the inductor to maintain its inductive properties at high frequencies, making it suitable for use in RF (Radio Frequency) circuits, such as wireless communication modules, Wi - Fi routers, and Bluetooth devices.

### 5. Temperature Stability
The LQM18FN1R0M00 is designed to have good temperature stability. It can maintain its electrical properties over a wide temperature range, typically from - 40°C to +125°C. This makes it suitable for use in harsh environmental conditions, such as automotive electronics, industrial control systems, and outdoor communication equipment, where the temperature can vary significantly.

## Applications

### 1. Power Supply Circuits
In power supply circuits, the LQM18FN1R0M00 can be used as a filter inductor. It helps to smooth out the DC output of a power supply by reducing the ripple voltage. By blocking high - frequency noise and allowing only the desired DC component to pass through, it ensures a stable and clean power supply for the electronic components in the circuit. This is essential for the proper operation of sensitive electronic devices, such as microprocessors, memory chips, and analog circuits.

### 2. RF Circuits
In RF circuits, the inductor is used for impedance matching, filtering, and tuning. It can be used in the input and output stages of RF amplifiers to match the impedance between different components, improving the power transfer efficiency. In addition, it can be used as a part of a filter circuit to select or reject specific frequencies, ensuring that only the desired signals are processed by the circuit.

### 3. Signal Processing Circuits
In signal processing circuits, the LQM18FN1R0M00 can be

Images for reference

LQM18 Series

LQM18 Series

LQM18F Series End

LQM18F Series End

LQM18F Series Top

LQM18F Series Top

Datasheets

Partlist

LQM18FN1R0M00D