The SMBJ40CA is a bidirectional transient voltage suppressor diode designed for surge and ESD protection in portable communications, computing, and video equipment. It features a working peak reverse voltage of 40 V, a breakdown voltage range of 44.4 V to 49.1 V, and a maximum reverse voltage of 10 V at 10 mA. The device offers fast response times of less than 5.0 picoseconds and is housed in a compact DO-214AA (SMB) surface mount package. With a maximum peak current of 9.3 A and maximum clamping current of 83.9 A, the SMBJ40CA provides robust protection against transient overvoltages. It is RoHS compliant and suitable for IEC 61000-4-2 ESD, IEC 61000-4-4 EFT, and IEC 61000-4-5 Surge protection applications.