ET

C&K 的 ET 系列是密封式超小型钮子开关, 通常用于医疗和电信行业的手持式或仪器仪表应用。耐久性 ET 开关尺寸小（以节省印刷电路板上的空间）和 ESD 有保护功能, 针对焊接和清洗过程的污染物提供强大保护。
特点
Sealed against solder and cleaning process contaminants
Compact size and small footprint save PCB space
ESD protection available
典型应用
Hand-held telecommunications
Instrumentation
Medical equipment
产品规格
Contact Rating:
Gold contact material: 0.4 VA max. @ 20 V AC or DC max. See datasheet for additional ratings

Electrical Life:
ETX1 models: 60,000 make-and-break cycles at full load. All other models: 30,000 cycles

Contact Resistance:
Below 20 millohms typ. initial @ 2-4 V DC, 100 mA, for both silver and gold plated contacts

Insulation Resistance:
10? ohms min.

Dielectric Strength:
1000 Vrms min. @ sea level

Operating Temperature:
–30oC to 85oC

Solderability:
Per MIL-STD-202F method 208D, or EIA RS-186E method 9 (1 hour steam aging)

Certifications:
 models available