As a professional keyboard (metal key base cover + capacitive sensing switch) manufacturer, Sierde is specialized in the R&D, design, manufacturing and integration of the keyboards (metal key base cover + capacitive sensing switch) used in the fields of industrial control, finance, telecommunications, tax administration, touch tablet, medical apparatus and instruments, security and protection entrance control and test instruments.
- All stainless steel or organic boards and keys are supported by precise dies with beautiful and elegant surface treatment and able to provide PS2 and USB interface.
- Keys produced with multiple processes with a variety of cutting and machining techniques, flexible in shape, firm and reliable.
- The keys are etched with imported high-intensity printing ink, durable and wear-proof.
- Service life: the service life of each key >500,000 times:
- Response time: <5MS
- Key journey: 0.45mm
- Key force (optional): 200～420GF
- Working temperature: -30℃～+80℃≤1500VDC
- Storage temperature: -40℃～85℃
- Operating humidity: <95%
-20 ~ +70
-50 ~ +125
VSS-0.3 ~ VSS+5.5
VSS-0.3 ~ VDD+0.3
Antistatic strength of chips
Input low voltag
Input High Voltage
Output response time