The MA4E1338 series is a silicon medium barrier Schottky diode suitable for use in mixer, detector and limiter circuits. These diodes are also suitable for usage in anti-parallel, shunt power surge protection circuits for 50 and 75 systems. These parts are offered with Sn/Pb plating, as well as with 100 % matte Sn plating on the RoHS compliant part numbers. The MA4E1338 Series of Schottky diodes is available in the SOT-23 ( case style 287 ), SOT-143 ( case style 1068 ), SOT-323 ( case style 1146 ) and the SOD 323, ( case style 1141 ) plastic package. These packages are supplied on tape and reel for automatic pick and place assembly and for surface mount placement to circuit boards, as indicated by a "T" to the P/N suffix.