LS311 SOT-23 3L LS3550C SOIC 8L LS3550B SOT-23 3L LS313 SOT-23 3L LS311 PDIP 8L LS311 SOIC 8L LS3550B SOIC 8L LS310 SOIC 8L LS351 PDIP 8L LS3550C TO-78 6L LS3550B TO-78 6L LS310 TO-78 6L LS313 TO-71 6L LS312 TO-78 6L ALD810023SCL BCV61C,215 BCV62C,215 UMC5NT1G DMB53D0UDW-7 ALD910022SAL