The SMBJ20A-T with SMB (DO-214AA) TVS ROHS is an electronic part manufactured by Prosemi. This part is a potted, axial leaded, unidirectional, super-fast Transient Voltage Suppressor (TVS) diode. It is designed to protect sensitive equipment from damage caused by electrical transients. The SMB(DO-214AA) package offers the same "Surface Mount" style body as the SMB but with DO-214AA case outline dimensions. It is RoHS compliant, meaning it is lead and halogen free. This diode has a Peak Pulse Power rating of 400W, a Working Voltage of 20V, a Clamping Voltage (Vc) of 37.5V, and a Breakdown Voltage (Vbr) of 20V. The SMBJ20A-T is useful in a variety of applications such as telecom systems, data lines, computer networks, instrumentation, ground loops, and automotive systems.