This product is Huawei's HUAWEI P50 phone, which uses a 6.57-inch OLED screen with a resolution of 2700 x 1228 pixels and a refresh rate of 90Hz. It is powered by the Kirin 9000 processor and has a triple rear camera system with a 50-megapixel main camera, a 13-megapixel ultrawide camera, and a 12-megapixel telephoto camera. The front camera is a 13-megapixel camera.
The STF203 is a combination EMI filter and line termination device with integrated TVS diodes designed for use on upstream USB ports. It meets the requirements of revision 1.1 of the Universal Serial Bus specification by providing termination, filtering, and ESD protection for one upstream USB port. The device integrates passive components and TVS diodes in a single SC70-6L package to simplify design and minimize board space.
The product offers ESD protection for USB power and data lines (D+ & D-) to IEC 61000-4-2 Level 4, with suppression capabilities of 15kV for air discharge and 8kV for contact discharge on data lines, and 25kV for the voltage bus. Series resistors are available in 15Ω, 22Ω, and 33Ω values to match the 45Ω characteristic impedance of the USB cable.
| Package Type | SC70-6L |
|---|---|
| ESD Protection (Air Discharge) | 15kV |
| ESD Protection (Contact Discharge) | 8kV |
| Operating Temperature | -40 to +125 °C |
| Series Resistance (STF203-15) | 15 Ω |
| Series Resistance (STF203-22) | 22 Ω |
| Series Resistance (STF203-33) | 33 Ω |
| Pull Up Resistance | 1.5kΩ |
| Capacitor Value | 47 pF |
The TVS diodes on the input/output pins provide suppression of ESD voltages in excess of 15kV (air discharge) and 8kV (contact discharge) per IEC 61000-4-2, level 4.
The devices are available with resistor values of 15Ω (STF203-15), 22Ω (STF203-22), and 33Ω (STF203-33).
The typical reverse stand-off voltage (Vr) is 5.25V.