Compact power inductor for surface-mount electronic applications
Manufacturer： sumida-corporation
# Introduction to the CDRH4D28 - 2R2 Product Series
## Overview
The CDRH4D28 - 2R2 product series represents a cutting - edge range of components designed to meet the diverse and demanding requirements of modern electronic circuits. These components are engineered with precision and innovation, offering high - performance solutions for a wide array of applications.
## Key Features
### Inductance and Resistance
- **Inductance Value**: The "2R2" in the model name indicates an inductance value of 2.2 μH. This specific inductance is carefully calibrated to provide optimal performance in various circuit designs. It allows for efficient energy storage and transfer in the magnetic field, which is crucial for functions such as filtering, impedance matching, and signal coupling.
- **Resistance**: The series is designed with low DC resistance (DCR). Low DCR minimizes power losses in the form of heat, improving the overall efficiency of the circuit. This is especially important in power - sensitive applications where energy conservation is a priority.
### High - Frequency Performance
- The CDRH4D28 - 2R2 components are optimized for high - frequency operation. They can handle high - frequency signals with minimal signal distortion and attenuation. This makes them suitable for use in radio frequency (RF) circuits, wireless communication devices, and high - speed data transmission systems.
- Their excellent high - frequency characteristics are achieved through advanced core materials and winding techniques. The core materials are selected for their low hysteresis and eddy - current losses at high frequencies, while the winding design ensures proper coupling and reduced parasitic capacitance.
### Compact Design
- These components feature a compact form factor, making them ideal for applications where space is limited. The small size allows for easy integration into densely packed printed circuit boards (PCBs), enabling the design of more compact and lightweight electronic devices.
- Despite their small size, the CDRH4D28 - 2R2 series does not compromise on performance. They are built to deliver the same level of functionality as larger components, making them a popular choice for portable electronics, wearables, and other miniaturized devices.
### High Current Handling Capability
- The series is capable of handling relatively high currents. This is essential in power - supply circuits and other applications where large amounts of current need to be processed. The high - current handling capacity is achieved through the use of thick - gauge wire for the windings and a robust core structure that can withstand the magnetic forces generated by the current.
### Temperature Stability
- The CDRH4D28 - 2R2 components exhibit excellent temperature stability. They are designed to maintain their electrical characteristics over a wide temperature range. This ensures reliable performance in different environmental conditions, from extreme cold to high - temperature industrial settings.
- The temperature stability is achieved through the selection of materials with low temperature coefficients and proper thermal management design within the component.
## Applications
### Power Supplies
- In switching power supplies, the CDRH4D28 - 2R2 inductors are used for energy storage and filtering. They help to smooth out the output voltage and reduce ripple, ensuring a stable and clean power supply to the connected electronic devices.
- They are also used in DC - DC converters, where they play a crucial role in stepping up or stepping down the voltage levels efficiently.
### RF and Wireless Communication
- In RF circuits, these inductors are used for impedance matching, which is essential for maximizing the power transfer between different stages of the circuit. They are also used in filters to select specific frequencies and reject unwanted signals.
- In wireless communication devices such as smartphones, tablets, and Wi - Fi routers, the CDRH4D28 - 2R2 series helps to improve the signal quality and reception performance.
### Automotive Electronics
- In automotive applications, these