Keypad switches are available at Tenco Electronics. Tenco offers inventory, pricing, datasheets for keypad switches. To know more, please view large section of keypad switches.
SWITCH KEYPAD 6 KEY 0.1A 5V
Grayhill, Inc.
SWITCH KEYPAD 12 KEY 0.01A 24V
SWITCH KEYPAD 16 KEY 0.01A 24V