1. Electronics & Power Supplies (Most Common)
In the engineering and manufacturing context, QPD primarily refers to a series of AC/DC power supplies or RF transistors:
QPD Series Power Supplies: Manufactured by Qualtek Electronics. These are enclosed AC/DC converters (e.g., QPD-25, QPD-60, QPD-100, QPD-150) with output powers ranging from 25W to 150W. They are used in commercial and industrial electronics.
QPD0005: A GaN RF transistor made by Qorvo, used in 5G基站 (base stations) and communication systems.
2. Industrial Brakes Context
There is no "QPD Series" listed in the provided brake catalogs.
The standard pneumatic disc brake series mentioned are the CQ/Q Series (Spring Applied, Pneumatic Released).
The standard pneumatic drum brake series mentioned is the QW Series.
3. Possible Confusion
If you are looking for a pneumatic brake, you might be referring to one of the following standard series:
QW Series: Pneumatic Drum Brake (often used in commercial vehicles).
CQ/Q Series: Pneumatic Disc Brake (used in industrial machinery).
YP Series: Electro-hydraulic Disc Brake (a different actuation method).
