Introduction
The efficiency of modern DC-DC converters can exceed 98%, with performance directly correlated to the losses across various components including inductors, capacitors, resistors, and switching devices. As a critical component in DC-DC converters, inductors significantly influence conversion efficiency, operational stability, and long-term reliability through the selection of coil materials, magnetic core properties, and manufacturing processes. For automotive power supply applications, selecting high-performance, reliable automotive-grade inductors is essential. The AS1A series employs advanced low-loss materials and optimized process engineering to deliver high current capacity, superior voltage tolerance, minimal power loss, and extended temperature range operation, meeting the demanding requirements of contemporary automotive DC-DC converter designs.
Key Features
- Advanced low-loss material technology reduces DCR and ACR parameters, maximizing power conversion efficiency
- Fine crystalline material structure creates more compact magnetic cores with enhanced mechanical durability
- Precision enamel wire stripping technology and robust soldering methodology minimize open/short circuit failure risks
- Comprehensive dimensional range (L×W: 2.0×2.0mm to 8.0×8.0mm) accommodating diverse application requirements
- Full AEC-Q200-G0 qualification with operating temperature range of -50℃ to +150℃, suitable for multiple automotive electronic modules
Electrical Characteristics
| Series | Inductance Range (μH) | DCR Range (mΩ) | Saturation Current Range (A) | Rated Current Range (A) |
|---|---|---|---|---|
| AS1A6020 | 1.0~47 | 25~663 | 0.80~6.40 | 0.72~3.70 |
| AS1A6028 | 1.0~220 | 13~1820 | 0.50~6.00 | 0.50~5.20 |
| AS1A6045 | 1.0~470 | 13~2665 | 0.50~13.00 | 0.35~6.20 |
| AS1A8030 | 1.0~47 | 12~221 | 1.10~7.80 | 1.30~6.20 |
| AS1A8040 | 1.0~47 | 11~182 | 1.60~11.50 | 1.50~7.00 |
Technical Advantages
Commercial Production Status
The series has been fully implemented into mass production, ensuring consistent supply chain availability.
Superior Loss Characteristics
Utilizes materials with high magnetic permeability, elevated saturation flux density (Bs), and optimized loss profiles to reduce DCR and ACR parameters, enhancing saturation performance and power conversion efficiency.
Enhanced Structural Integrity
The material formulation employs uniformly distributed fine powder particles (approximately 10μm average diameter), resulting in components with decreased porosity, increased density, and reduced internal stress. The enhanced bonding strength between grain boundaries and crystalline structures provides superior mechanical properties, with structural strength measuring twice that of equivalent non-automotive-grade components.
Exceptional Reliability
The advanced electrode metallization process and strategically designed side electrode configuration naturally create rounded corner formations during soldering operations, producing dense, continuous solder joints that substantially enhance mechanical resilience. Mechanical shock testing demonstrates strain capacity exceeding 3000ue.
Implementation of high-temperature-rated coated copper conductors combined with precision insulation removal processes and validated soldering protocols effectively minimizes thermal cracking risks and reduces open/short circuit failure potential.
Reference URL: https://www.sunlordinc.com/en/news-productdetail.html?id=79
