1SS302x Switching Diodes Toshiba 1SS302x Switching Diodes are ultra-high-speed switching diodes with fast reverse recovery time trr <, 1.6ns (typical). These diodes are surface-mount devices with a 0.95mm max height. Toshiba 1SS302x diode is AEC-Q101 qualified, provides 80V maximum peak reverse voltage, 300mA peak forward current, and -55°C to +150°C storage temperature.