SMD molded power inductors play a vital role in modern electronics, offering significant advantages in compactness, better performance, and thermal management. Their small footprint allows the efficient use of PCB space which is essential for the miniaturization of devices.
In automotive applications, they support critical functions in electric and hybrid vehicles, advanced driver-assistance systems (ADAS), and infotainment systems, ensuring reliable and efficient power delivery under demanding conditions.
Our partner Sunlord has a large portfolio of power Inductors, suitable for various automotive applications. All the series mentioned below are AEC-Q200 Qualified and Sunlord offers direct replacement to various well-known manufacturers.
Magnetic Shielding Series: AS1A and AS1B
This magnetic shield type wire wound Inductor is one of the key highlights due to its electrical performance and reliability. The closed magnetic circuit design reduces flux and Electro Magnetic Interference (EMI).
- AS1A-Series
The AS1A series offers a large range of available sizes with different values of Inductance and rated current provides high flexibility in choosing the specific product. The series is suitable for operating temperatures between -40°C to +125°C.
Applications
Automotive on-board control or safety system. Also, can be used in non-safety systems in the vehicle.
- A1SB-Series
The AS1B series has an alloy magnetic core design ensuring higher current carrying capacity. The metallized magnetic core also provides strong impact resistance. AS1B series can be used for operating temperature between -55℃ to +150°C.
Applications
ADAS, Infotainment system, LED lighting, Airbag, Internet of vehicles.
Both series in comparison
| Series | Structure | Land Pattern Range LxW (mm) | Height (mm) | Inductance Range (μH) | Rated Current Range (A) |
| AS1A | Magnetic Shield Coating (Ferrite core) | 2.0x1.6 to 8.0x8.0 | 1.0 to 4.0 | 0.24 to 470 | 0.17 to 7.0 |
| AS1B | Magnetic Shield Coating (Metal core, High Temp) | 2.0x1.6 to 4.0x4.0 | 1.0 to 2.0 | 0.24 to 22 | 0.65 to 8.0 |
Molding Series: AS2A and AMP
Sunlord’s molded type SMD power Inductors are compact and have extremely robust design. Their Improved thermal management and enhanced EMI shielding benefits results in higher current carrying capacity. Also, they offer high performance and excellent reliability.
AS2A-Series
AS2A series is manufactured using ultra-low pressure molding process. The flat wire coil reduces the losses improving overall efficiency. This series is suitable for operating temperature range is from -55℃ to +165°C. Its extremely low DCR and AC losses, makes it the best choice for high switching frequency applications (up to 10MHz). The series has no thermal aging issues.Applications
Due to its wide temperature range, this series is suitable for extreme temperature sensitive applications for example automotive on-board control or safety system, LED, ECM, ADAS, BCM.- AMP-Series
As compared to AS2A series, this series offers comparatively bigger sizes ranging from 4mm to 17mm land pattern dimensions and wide inductance range. Compared to traditional winding power inductors, it has high current features, low DC resistance and better DC bias. This series has been developed with ferroalloy as a core material and integrated molding process. The implementation of Poka-Yoke technique in the production process gives the guarantee of quality consistency and production stability.
AMP series is suitable for operating temperature between -55℃ to +150°C.
Applications
Due to its multiple advantages over the existing products in market, this series is suitable for various in-vehicle modules, such as LED lighting, Airbag, BMS, intelligent cockpit system, intelligent driving system, T-BOX and V2X, OBC, DC-DC conversion, etc.
Both series in comparison
| Series | Structure | Land Pattern Range LxW (mm) | Height (mm) | Inductance Range (μH) | Rated Current Range (A) |
| AS2A | Transfer Molding Power Inductor (Flat Wire, High Temp) | 2.0x1.6 bis 3.2x2.5 | 1.2 bis 2.0 | 0.01 bis 47 | 0.67 bis 45 |
| AMP | Molding Power Inductor (Ferroally core) | 4.4x4.2 bis 17.2x17 | 1.8 bis 6.9 | 0.05 bis 100 | 1.4 bis 51 |
Learn more about Wire Wound Power Inductors
Which component is the right one for your application?
Find the right component in the product series list: