The ASMBJ64A-HF from Comchip Technology is a unidirectional 64 V, 600 W transient voltage suppressor (TVS) diode with a 103 V clamp voltage and 5.8 A peak pulse current, in a surface-mount SMB (DO-214AA) package.
The ASMBJ64CA-HF from Comchip Technology is a 600 W bidirectional TVS diode rated 64 V, with a 103 V clamp voltage and 5.8 A peak pulse current (Ipp), in a surface-mount SMB/DO-214AA package.