SRR1210-470M
Shielded wirewound power inductors, 47uH, 3.1-3.8A, SMD format
Manufacturer： bourns
series introduction
# SRR1210 - 470M Product Series Introduction
## 1. Overview
The SRR1210 - 470M product series represents a cutting - edge range of surface - mount power inductors. These inductors are designed to meet the diverse and demanding requirements of modern electronic circuits, offering high - performance solutions for a wide array of applications. With a focus on reliability, efficiency, and compact design, the SRR1210 - 470M series has become a popular choice among electronics engineers and manufacturers.
## 2. Key Specifications
### Physical Dimensions
The SRR1210 - 470M inductors feature a standard surface - mount package with dimensions of 12.5mm x 12.5mm x 10mm (L x W x H). This compact size makes them suitable for use in space - constrained circuit boards, allowing for more efficient use of available PCB real estate. The well - defined package dimensions also ensure easy pick - and - place during the automated assembly process, enhancing production efficiency.
### Inductance Value
As indicated by the model number, the inductance value of the SRR1210 - 470M series is 47μH (microhenries). This specific inductance value is carefully selected to provide optimal performance in a variety of circuits, such as power supply filtering, DC - DC converters, and voltage regulators. The inductance is tightly controlled during the manufacturing process to ensure consistency and accuracy, which is crucial for the proper functioning of the overall electronic system.
### Tolerance
The inductors in the SRR1210 - 470M series have a tolerance of ±20%. This tolerance range is acceptable for many general - purpose applications, providing a balance between cost - effectiveness and performance. In applications where more precise inductance values are required, additional calibration or selection of inductors with tighter tolerances may be necessary.
### Saturation Current
The SRR1210 - 470M series offers a relatively high saturation current. Saturation current is the maximum current at which the inductor's inductance value drops to a specified percentage (usually 30%) of its initial value. For this series, the saturation current is typically in the range of several amperes, depending on the specific operating conditions. This high saturation current capability makes the inductors suitable for high - power applications, such as power supplies for servers, industrial equipment, and automotive electronics.
### DC Resistance (DCR)
The DC resistance of the SRR1210 - 470M inductors is relatively low. Low DCR is essential as it reduces power losses in the inductor, resulting in higher efficiency and less heat generation. This is particularly important in power - sensitive applications, where minimizing power consumption is a key design consideration. The low DCR also helps to improve the overall performance and reliability of the circuit by reducing the risk of overheating.
## 3. Electrical Performance
### Frequency Response
The SRR1210 - 470M inductors exhibit excellent frequency response characteristics. They are designed to operate effectively over a wide frequency range, from a few kilohertz to several megahertz. This wide frequency range makes them suitable for use in various types of switching power supplies, where high - frequency operation is often required to achieve smaller component sizes and higher power densities.
### Self - Resonant Frequency (SRF)
The self - resonant frequency of the SRR1210 - 470M series is relatively high. The SRF is the frequency at which the inductor's inductive reactance and capacitive reactance are equal, resulting in a resonance condition. A high SRF ensures that the inductor maintains its
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SRR1210-330M
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