1.General specification 基本说明;1.1 Scope 范围 This specification covers the requirements for single key switches which have no keytop;(TACT SWITCHES:MECHANICAL CONTACT).此规范含盖单推柄和无推柄的轻触开关要求;1.2 Operating Temperature Range 使用温度范围 -20 to70℃(normal humidity, normal press.) 正常湿度,标准压力; 1.3 Storage Temperature Range 保存温度范围 -30 to80℃(normal humidity, normal press.); 1.4 Test Conditions 测试条件Tests and measurements shall be made in the following standard clnditions unless otherwise specified: 测试和计量按下列标准条件除非特殊说明;Normal temperature (temperature 5 to 35℃) 标准温度;Normal humidity (relative humidity 45 to85%) 正常湿气; Normal pressure (pressure 860 to 1060 mbars) 标准压力 In case any question arises from the judgement made, tests shall be conducted in the following conditions:; Temperature (20±2℃) 温度;Relative humidity (65±5%) 相对湿; Pressure (860 to 1060 mbars) 压力;2.APPEARNCE, STYLE, AND DIMENSIONS外形,类型和尺寸;2.1 Appearance 外形There shall be no defects that affect the serviceability of the product.外形必须无缺陷才不影响产品适用性;2.2 Style and Dimensions类型和尺寸Shall conform to the assembly drawings.符合装配图;3.TYPE OF ACTUATION 动作类型;Tactile feedback 轻触返回;4.CONTACT ARRANGEMENT 1 poles 1 throws 接触形式 1接点1回路;(Details of contact arrangement are given in the assembly drawings.)细接点形式在装配图中。