The recommended land pattern for the VLS252008ET-4R7M can be found in the TDK Corporation's application note or on their website. It typically includes a rectangular pad with a size of around 2.5mm x 1.5mm, with a 0.5mm hole in the center for the inductor's terminal.
The thermal derating of the VLS252008ET-4R7M inductor is typically handled by reducing the maximum current rating as the ambient temperature increases. TDK Corporation provides a thermal derating curve in the datasheet, which shows the maximum current rating at different temperatures. Engineers can use this curve to determine the maximum current rating for their specific application.
The self-resonant frequency of the VLS252008ET-4R7M inductor is not explicitly stated in the datasheet, but it can be estimated using the inductor's inductance value and the parasitic capacitance. Typically, the self-resonant frequency of an inductor is around 10-20 times its operating frequency. For the VLS252008ET-4R7M, the self-resonant frequency is likely to be in the range of 100-200 MHz.
The VLS252008ET-4R7M inductor is designed to meet the vibration requirements of IEC 60068-2-6, which includes vibration testing up to 10G. However, if the application requires even higher vibration resistance, engineers should consult with TDK Corporation or perform additional testing to ensure the inductor's reliability.
The VLS252008ET-4R7M inductor has a tin-silver-copper alloy termination, which can be soldered using a standard reflow soldering process. The recommended soldering conditions are a peak temperature of 260°C, with a soldering time of 3-5 seconds. Engineers should ensure that the soldering process meets these conditions to avoid damaging the inductor.
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About TDK
TDK-Lambda is a global supplier of power supplies and related products. It is a subsidiary of TDK Corporation, a leading electronics company based in Japan. TDK-Lambda specializes in designing and manufacturing a wide range of AC-DC power supplies, DC-DC converters, programmable power supplies, and EMC/EMI filters for various industries and applications.
