... , OEM acceptable color:as you like Silicone keypad fields of application: Keypads of Telephone, Interphone, Alarm System, machine equipment, Remote Control ... Ω. 5) Stroke Voltage: 25-30KV/mm. 6) Expectation of Life: 500, 000 - 20, 000, 000 closures. 7) Meet ROSH directive, the ... standard of ISO 9001.8) Applications: cordless phones and ...