4.3 .169 4.4 .173 2.1 .083 mm inch 14 23 RoHS.
AQY410SZ - GU (General Use) Type SOP Series 1- Channel (Form B) 4-Pin Type
AQY410S - Photo MOS Relay
AQY410SX - GU (General Use) Type SOP Series 1- Channel (Form B) 4-Pin Type