Silent USB Wired Chocolate Keyboard
Innovative chocolate ultra-quiet structure design, more quiet to use, the touch area of the button cap is enlarged, more comfortable and will not be disturbed;
This specification defines the stylish silent chocolate multimedia keyboard suitable for desktop computers and LCD computers, which is based on the USB protocol. 1.1 General description
Dimensions: 443 (L)* 159 (W)*27.5 (H) (including keycap) mm
Number of keys: 105 Keys (US), 106Keys (UK), 108Keys (KR), 109Keys (BP)
Keyboard weight: 550g
Keyboard pitch: 19.0 mm
Button size: 15.9*15.9mm
Interface type: USB Wired
System requirements: IBM or compatible PC with
Windows 98/2000/ME/XP/Vista/Windows 7/Windows 8/Windows 10
mechanical properties
Button structure diagram: Please refer to the following diagram
Appearance and size: please refer to the picture below
| Part name | Material | UL Grade |
|---|---|---|
| Key cap | ABS | 94HB |
| Conductive film | PET silver paste circuit | 94VTM-2 |
| Hot pressed Rubber | Silicone liquid molding | 94HB |
| Upper cover |
ABS |
94HB |
| Lower cover |
ABS |
94HB |
| Wire rod |
All copper wire |
NA |
Button silicone life test (test condition: 150g full stroke pressure).
8 million times. (Silicone uses a whole piece of silica gel)
MTBF (Mean time between failure) in life test 8 million life cycle.
Keycap pullout force, over 1.5kg
Definition of Appearance Specifications
| Profile Color | Keycap color | Keycap printing | Label color | Cable (S/R) |
|
Color of top cover: Black or other Color of lower cover: Black or other |
All black or all white | White font | Black on white | All black or all white |
Electrical characteristics
Working voltage: 5V
Working current: 100mA
Control IC: RF: SX83073CE
Typical application circuit and application description
Standard circuit (built-in oscillation, omit external crystal oscillator, can use four-core USB cable)
Certification supervision and management: CE,FCC,ROHS
EMS: Electrostatic Discharge Sensitive
Contact discharge: 2, 4 KV
Air discharge: 2, 4, 6, 8 KV. Radiation characteristics
Level: 3V/m, 80-1000MHZ
