The 1593TTBU pairs the 112 mm low-profile 1593T body with a transparent blue satin-texture ABS shell. Its translucency suits portable devices where LEDs or displays should be visible through the case, such as handheld indicators, beacons and prototypes.

The integrated battery compartment closes with a long-life "three snap" door and takes AAA batteries only, with the two AAA battery holder the largest that will fit. One end panel is removable, and the recessed top provides a 100.00 x 55.00 mm inlay for a membrane display. Transparent blue enclosures include black finish screws.

Size is 4.4 x 2.6 x 0.83 in (112 x 66 x 21 mm), or 112 x 67 x 21 mm in the series table. The drawing gives 69.93 mm inside length, 60.79 mm inside width and 14.80 mm inside height; PC boards up to 59.14 x 68.12 mm mount on #4 self-tapping screws.

The 1593TTBU ships in shrink wrap at 0.14 lbs (0.06 kg) with top and bottom cover, 1 plastic flat front panel, battery door and 4 cover screws. Solid models are available in .stp or .x_t, and the case can be factory modified. UL94 HB, RoHS and REACH compliant.