EPCOS AG Electric Actuators/Cylinders B58004M4040A020

The B58004M4040A020 is a multilayer piezo actuator with a ceramic body measuring 5.2 x 5.2 x 45 mm, designed for high-reliability linear motion applications. It operates within a voltage range of -10 to +180 V and delivers a stroke of 83 ±10% µm at 160 V under a 730 N pre-load. The actuator has a dynamic stiffness of 16 N/µm and a blocking force of 1400 N. Its capacitance is 5.3 µF at 1 kHz and 25 °C, with insulation resistance exceeding 40 MΩ. The device is rated for stack surface temperatures from -40 to +160 °C and has a resonance frequency of 30 kHz in free state. It features RoHS-compatible PZT ceramic with copper electrodes, is passivated for humidity resistance, and meets IATF 16949 for automotive applications. The part contains SVHC substance 12626-81-2.