Panasonic Electronic Components ESE-2121BT Actuator Type: Overtravel Plunger Circuit: SPST-NO Contact Rating @ Voltage: 0.01A @ 5VDC Mounting Type: Surface Mount Operating Force: 30gf Series: ESE212 Switch Function: Off-Mom Termination Style: SMD (SMT) Tab Other Names: ESE2121BT, P13377STR