Recently, Dyson launched the HD19 portable high-speed hair dryer to meet the growing travel needs of business travelers. This product features a significantly reduced size while still housing a high-speed motor with a rotation speed of up to 110,000 RPM.
According to a teardown report from ChargerLAB, the Dyson HD19′s mainboard uses four high-voltage filtering electrolytic capacitors, all from YMININ, with a specification of 400V 39μF.
Image source: ChargerLAB’s 4078th teardown report
Behind the portable body, how are capacitors simultaneously “slimmed down”?
The Dyson HD19 portable hair dryer’s design philosophy revolves around “smallness”: its body length is significantly reduced, and its weight is lighter by 25%, making it ideal for travel storage. All of this is inseparable from the simultaneous miniaturization of internal components.
Four 400V 39μF high-voltage filter electrolytic capacitors on the PCB utilize a compact packaging process, achieving a smaller footprint for the same capacitance value. This allows Dyson to significantly compress the length of the air outlet without sacrificing electrical performance. The parallel design of the four capacitors provides ample filtering margin, ensuring stable operation of the entire device even under voltage fluctuations or full load conditions. —Small size and high energy density make it an ideal choice for power filtering in portable devices.
Furthermore, high-voltage aluminum electrolytic capacitors cover specifications ranging from 400~500V and 8.2~270μF, providing a one-stop solution for various high-voltage capacitor needs.
YMININ Capacitors – Flagship Performance in a Tiny Size
Dyson’s choice is a testament to and recognition of the quality of YMININ Capacitors.
We always uphold the service philosophy of “For capacitor applications, turn to YMIN for help.” If your project faces challenges in capacitor selection, please visit the YMIN website (www.YMINin.com). We will provide support including selection materials, specification sheets, performance test reports, and sample testing to help your solutions be implemented quickly.
| The information about the Dyson HD19 mentioned in this article comes from a publicly available teardown report by ChargerLAB. YMIN Capacitor technical parameters are subject to the official specification sheet.
Post time: Jul-24-2026