The 1553DTBUBK is the translucent blue size D handheld enclosure in the 1553 Series, with a translucent blue ABS body and a black soft-sided overmold. The translucent case gives handheld products a distinctive look and suits designs where internal indicators or components are meant to show through the housing.

The body is molded from general purpose ABS plastic with a UL94 HB flame rating and a soft plastic overmold for a comfortable grip. The top cover is recessed to take a membrane display or keypad, and PC board standoffs are molded into the case so the board aligns on the PCB bosses. As a single end panel version without a battery door, it is rated IP54.

Overall dimensions are 147 mm long, 89 mm wide and 25 mm deep (5.79 x 3.50 x 0.98 in); the nominal listed size is 5.8 x 3.5 x 0.98 in. The inner box is 140.24 mm long with an inner height of 19.50 mm, and the ordering table gives a maximum PC board of 139 mm x 74 mm (5.47 x 2.91 in).

The 1553DTBUBK is supplied with the top, bottom, removable front plastic panel and 4 cover screws; the PC board is not supplied. Non-grey 1553 enclosures use black screws. The replacement lid screw pack is 1593QS100BK, and the recommended cover screw torque is 2.5 lbf-in (30 cN-m). PC board mounting screws are ordered separately as 1593ATS50 or 1593ATS100.

It is RoHS and REACH compliant, ships in shrink wrap at 0.24 lbs (0.11 kg), and can be factory modified with milling, drilling or printing.