The 1551BTSK is the translucent smoke version of the 50 mm x 25 mm x 15 mm (1.97 in x 0.98 in x 0.61 in) 1551MINI subminiature enclosure. It is made for dongles and small printed circuit boards with USB connectors and offers a tinted, see-through look.
The enclosure is molded in general purpose ABS with a satin texture finish, rated UL94 HB and designed to meet IP54. Its cover is recessed with a 0.50 mm [0.02 in] inlay depth for labels.
The 1551BTSK is RoHS and REACH compliant, bagged, with a listed shipping weight of 0.02 lbs (0.01 kg). Spare black lid screws are 1551USB50BK (pack of 50). For a USB-A male connector cutout in this size, see the 1551USB2 series. Factory modification (milling, drilling, printing) is available, and solid models can be had in .stp or .x_t format. As with any ABS enclosure, avoid acetone, ketones, thread-locking compounds, cutting fluids and strong solvents, which can damage the plastic.
| Included | Box, lid, 2 cover screws |
| Cover Screws | #2 x 1/2" self-tapping, black |
| Recommended Screw Torque | (35-43) Ozf.in / (25-30) cN.m |
| Replacement Cover Screws | 1551USB50 (silver/plated, pack of 50) or 1551USB50BK (black, pack of 50) |
| PC Board Screws (Not Included) | #2 x 3/16" self-tapping (4.8mm), part number 1553WTS100 (pack of 100) |
| Type | Miniature, general purpose |
| Series | 1551MINI Series Subminiature Plastic Enclosures |
| Part Number | 1551BTSK |
| Short Description | 50 X 25 X 15.5MM ABS TRANS SMK |
| Width | 0.98 in (25 mm) |
| Length | 1.97 in (50 mm) |
| Height (Drawing) | 15.50 mm [0.61 in] |
| Size (L X W X H) | 1.97 in x 0.98 in x 0.61 in (50 mm x 25 mm x 15 mm) |
| Max. P.C. Board Width | 44 mm |
| Depth (Ordering Table) | 0.63 in (16 mm) |
| Max. P.C. Board Length | 20.5 mm |
| Lid Label Recess (Inlay) Depth | 0.50 mm [0.02 in] |
| UPC | 623980572963 |
| UNSPSC | 39121301 |
| 3D Solid Models | Available in .stp or .x_t |
| Factory Modification | Enclosures can be factory modified (milling, drilling, printing etc.) |
| Other Materials / Colours | Available, consult factory |
| Same Size With USB-A Cutout | 1551USB2 series |
| Packaging Type | Bag |
| Shipping Weight | 0.02 lbs (0.01 kg) |
| Color | Trans. Smoke |
| Cover | Recessed for label installation |
| Finish | Satin texture |
| Material | ABS Plastic (general purpose) |
| Board Mounting | Standoffs molded into interior; mounting posts accept #2 x 3/16" self-tap screws |
| IP Rating | IP54 (designed to meet) |
| Flame Rating | UL94 HB |
| Chemical Resistance | the manufacturer advises against acetone, ketones, ethers, aromatic and chlorinated hydrocarbons, thread-locking compounds, cutting or tapping fluid, water detection paste, anti-seize paste, strong solvents or cleaners, and some greases and oils |
| RoHS Compliant | Yes |
| REACH Compliant | Yes |
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The part page lists 50 mm x 25 mm x 15 mm (1.97 in x 0.98 in x 0.61 in). The drawing shows a 15.50 mm [0.61 in] height and the series ordering table lists the depth as 16 mm (0.63 in).
The maximum PC board size is 20.5 mm x 44 mm. Boards mount on molded-in posts with #2 x 3/16" self-tapping screws (part 1553WTS100, pack of 100), which are not included.
The box, lid and two #2 x 1/2" self-tapping cover screws. Translucent smoke boxes are supplied with black screws.
The 1551MINI series is designed to meet IP54, and the ABS carries a UL94 HB flammability rating.
Yes. The same size molded with a USB-A male connector cutout is the 1551USB2 series.
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