SRP4012-1R0M
Compact shielded power inductors for high-current SMD applications
Manufacturer： bourns
series introduction
# SRP4012 - 1R0M Product Series Introduction
## 1. Overview
The SRP4012 - 1R0M product series represents a cutting - edge line of power inductors designed to meet the diverse and demanding requirements of modern electronic circuits. These inductors are engineered with precision and advanced technology to provide high - performance solutions for a wide range of applications, from consumer electronics to industrial equipment.
## 2. Key Specifications
### Electrical Characteristics
- **Inductance**: The "1R0M" in the model number indicates an inductance value of 1.0 μH. This inductance value is carefully calibrated to ensure optimal performance in various circuit designs, allowing for efficient energy storage and transfer.
- **Tolerance**: The inductance tolerance is typically within a specified range, often denoted by the letter "M". For SRP4012 - 1R0M, the tolerance is usually around ±20%. This level of tolerance provides a balance between cost - effectiveness and the ability to meet the performance requirements of most applications.
- **DC Resistance (DCR)**: The DC resistance of the inductor is an important parameter as it affects the power loss in the circuit. The SRP4012 - 1R0M series is designed to have a relatively low DCR, which helps to minimize power dissipation and improve the overall efficiency of the circuit. The specific DCR value may vary depending on the manufacturing process and the exact design of the inductor, but it is generally in the range that is suitable for high - efficiency power applications.
- **Rated Current**: These inductors are rated for a certain maximum DC current. The rated current is determined based on factors such as the inductor's temperature rise and saturation characteristics. The SRP4012 - 1R0M series can handle a significant amount of current, making it suitable for power - hungry applications. This high - current handling capability ensures stable operation even under heavy load conditions.
### Physical Characteristics
- **Package Size**: The "4012" in the model number refers to the package size of the inductor. In the industry - standard notation, it typically represents a size of 4.0mm x 4.0mm x 1.2mm. This compact size makes the SRP4012 - 1R0M series ideal for applications where space is limited, such as in mobile devices, tablets, and other portable electronics.
- **Mounting Type**: The inductors in this series are surface - mount devices (SMD). Surface - mount technology allows for easy and automated assembly on printed circuit boards (PCBs), reducing production time and cost. It also provides better mechanical stability and electrical performance compared to through - hole components.
## 3. Design and Construction
- **Core Material**: The SRP4012 - 1R0M series uses high - quality magnetic core materials. These core materials are carefully selected to provide high magnetic permeability, low core loss, and good temperature stability. The use of advanced core materials helps to improve the inductor's performance and efficiency, especially at high frequencies.
- **Coil Winding**: The coils in these inductors are wound with precision using high - conductivity copper wire. The winding process is optimized to ensure uniform turns and proper insulation, which helps to reduce parasitic capacitance and improve the inductor's self - resonant frequency. This is crucial for maintaining the inductor's performance in high - frequency applications.
## 4. Applications
### Consumer Electronics
- **Mobile Phones and Tablets**: In mobile devices, the SRP4012 - 1R0M inductors are used in power management circuits, such as voltage regulators and DC - DC converters. They help to convert and regulate the power supply to different
Images for reference
SRP4012-1R5M
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