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The T4420W is a miniature membrane switch developed by Dexerials Corporation. It is designed for use in handheld and other small-sized electronic devices such as keypads, remote controls, and gaming devices. This switch features a long life of over 10 million cycles, a high contact reliability and a water-resistant construction. With a responsive feel and low-profile design, the switch is a great choice for applications that require high performance in a small space. Features like compact structure, 2-dimensional structure, dust resistance and low profile make it an ideal choice for small-sized electronic devices.