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The 1R5 SMD power inductor (1.5 μ H) is a square surface mount inductor with a flat copper wire winding and built-in magnetic shielding structure. It has low DC resistance (DCR) and high current carrying capacity, and is suitable for high-frequency switch circuits. Its closed magnetic circuit design effectively suppresses electromagnetic interference (EMI), improves system stability, and is resistant to high temperatures (-40 ° C to+125 ° C). It is suitable for digital amplifiers, DC-DC converters, and high-density power modules, balancing high efficiency and compact packaging (such as 5x5mm or 7x7mm), and is suitable for industrial, automotive electronics, and consumer applications.
1. Efficient flat copper wire design: Using flat copper wire winding to reduce skin effect and direct current resistance (DCR), improve current carrying capacity, and reduce energy loss.
2. Magnetic shielding structure: Integrated closed magnetic circuit
design effectively suppresses electromagnetic interference (EMI),
avoids affecting surrounding circuits, and improves system
stability.
3. High temperature resistance: With a wide operating temperature
range (-40 ° C~+125 ° C, some models can reach+150 ° C), it is
suitable for high-power and high-temperature environments.
4. Compact SMT package: Standard SMD square design (such as 5x5mm
or 7x7mm) saves PCB space and is suitable for high-density circuit
layout.
5. High reliability applications: Suitable for high-frequency
switching circuits such as digital amplifiers and DC-DC converters,
supporting industrial, automotive electronics, and consumer
devices, and complying with RoHS/AEC-Q200 standards.
Summary of the two core functions of 1R5 SMD Power Conductor:
1.Efficient energy storage and conversion
As the core energy storage component of switching power supplies
(such as DC-DC Buck/Boost circuits), efficient energy conversion is
achieved through a 1.5 μ H inductance value, reducing power loss
and improving system efficiency.
Flat copper wire design reduces high-frequency losses, supports
fast charging and discharging, and is suitable for high-frequency
(above 500kHz) digital amplifiers (Class-D) and other scenarios.
2.Electromagnetic interference (EMI) suppression
The integrated magnetic shielding structure effectively suppresses
high-frequency noise and magnetic field leakage, reduces
interference with surrounding sensitive circuits (such as RF or
signal processing modules), and ensures stable system operation.
The closed magnetic circuit design meets EMC requirements and is
suitable for harsh environments such as automotive electronics and
industrial power supplies.
In short, it has dual functions of efficient power processing and
electromagnetic compatibility optimization.
Feature | Description |
Inductance Value | 1.5μH (Rated) ±20% tolerance |
Construction | Flat copper wire winding for reduced skin effect and lower DCR |
Shielding | Integrated magnetic shielding for minimal EMI and improved noise suppression |
Current Rating | High saturation current (Isat) up to 3A-20A (model-dependent) |
DCR (DC Resistance) | Ultra-low milliohm range for efficient power conversion |
Operating Temperature | -40°C to +125°C (extendable to +150°C for some models) |
Core Material | Ferrite or alloy powder for high-frequency stability |
Package Size | Compact SMD (e.g., 5x5mm or 7x7mm), RoHS-compliant |
Applications | Class-D amplifiers, DC-DC converters (Buck/Boost), automotive/industrial PSUs |
Certifications | AEC-Q200 (automotive-grade options available) |