This part is a kind of semiconductor called A493-xxxx.

Function of this product has TRIPLE LINE LEADING EDGE CONTROL PRECISE DELAY MODULES.

Manufacturers : Bel Fuse

Image and pinout :

Some of the text within the PDF file :

defining a degree of excellence TRIPLE LINE LEADING EDGE CONTROL PRECISE DELAY MODULES .300 .375 .350 .300 7 .285 Max Vcc 8 In 1 .10 Typ .50 Max .22 Max .018 Coplanarity + .002 .015 .004 4o .012 .008 .012 .008 .030 .23 Max 100o 90o .10 Typ Gnd 4 .50 Max 2 6 3 5 .325 Cat 39-R0 bel (DC) (P/N) bel * (DC) (P/N) .285 Max .20 Max .015 Min .045 .12 Min .018 Part Numbers SMD Thru-Hole Time Delay 5 ns 7 10 12 15 17 ns ns ns ns ns Tolerance + 1.0 + 1.0 + 1.0 + 1.0 + 1.0 + 1.0 + + + + ns ns ns ns ns ns Rise Time 3 ns 3 3 3 3 3 ns ns ns ns ns Ein Trin PW PP Iccl Vcc Test Conditions @ 25oC Pulse Voltage Rise Time Pulse Width Pulse Period Supply Current Supply Voltage 3.2 Volts 3.0 ns (10%-90%) 1.2 x Total Delay 4 x Pulse Width 80 ma Typical 5.0 Volts S493-0005-A3 A493 [ ... ]

A493-xxxx PDF Datasheet Download