TDK BCL3520FT-D Inductor
TDK BCL3520FT small power inductors are designed for automotive power circuits (3.3mm x 3.5mm x 2.0 mm – L x W x T). Inductors such as the BCL3520FT series are used in efficient power supply circuits of ECUs. High efficiency is necessary to reduce power losses because an increasing number of ECUs for ADAS applications are being deployed in cars. This drives the development of low-loss, high-functional power inductors. These components must be compact, as they need to be mounted in the limited space of the ECU. High reliability is also crucial, as they must operate in harsh, high-temperature environments.
Thanks to TDK’s proprietary metallic magnetic materials and structural designs, the BCL3520FT series achieves industry-leading electrical properties for 0.47μH inductors with such small dimensions. Regarding DC resistance, a low 5mΩ (typ.) resistance has been achieved, approximately 15% lower than equivalent products available on the market. Using a flat wire instead of a standard round wire reduces heat generation and power loss. Therefore, the components achieve a rated current (Isat) of 10A, approximately 28% higher than other products, thereby facilitating the use of these products in a range of applications. These high-reliability inductors can be used in high-temperature environments up to 155°C, the upper guaranteed temperature limit.
Features
- Due to the properties of metallic materials able to handle larger currents than ferrite materials
- Use of high-μ materials has made it possible to achieve low Rdc in metal products
- The coil is fully encapsulated with a magnetic material to minimize leakage flux
- Compliant with AEC-Q200 (automotive products)
- Industry-leading DC resistance of 5mΩ and rated current of 10A
- Usable in high-temperature environments with an upper guaranteed temperature limit of 155°C
Applications
- Automotive-related equipment:
- LED, ECM, ADAS, and BCM
- Power supply circuits for automotive applications
- ADAS, xEV, and automotive camera modules
Specifications
- 470nH ±20% at 1MHz inductance
- 8A maximum rated current
- 6mΩ maximum DC resistance
- 40V maximum rated voltage
- -55°C to 155°C operating temperature range
Mechanical Diagram
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