LSK152M2C--A3050 LSK152M2C--A3540 LSK152M2D--A3550 LSK152M2V--A3580R LSK152M2VBK-3580 LSK1668 LSK170 LSK170A SOT-23 3L LSK170A SOT-23 3L ROHS LSK170A TO-92 3L ROHS