The 1551USB1BK is a black ABS plastic miniature enclosure with an integrated cutout for a male USB-A connector, measuring 35 mm x 20 mm x 15 mm (1.38 in x 0.79 in x 0.61 in). It is the smallest size in the 1551USB series and is aimed at developers and OEMs building USB dongles and small printed circuit boards with male USB-A connectors. The USB connector itself is not included.
The enclosure is molded from general purpose ABS in black (RAL 9011) with a satin texture finish and a UL94 HB flammability rating. It is designed to meet IP51. The cover is recessed with a 0.50 mm [0.02 in] inlay depth so a label can be applied flush.
Standoffs molded into the interior accept #2 x 3/16" self-tapping screws for board mounting; these are not included (order 1553WTS100, pack of 100). The maximum PC board size is 15.5 mm x 31.25 mm. The lid is fastened with the two black #2 x 1/2" self-tapping screws supplied, at a recommended torque of 35-43 ozf.in (25-30 cN.m). Extra screws are 1551USB50BK (black) or 1551USB50 (silver), each a pack of 50.
The 1551USB1BK is RoHS and REACH compliant, packed in a bag, and has a listed shipping weight of 0.01 lbs. It is also offered in grey, translucent clear, translucent smoke and translucent red, and the same size without a USB cutout is available in the 1551MINI series. Factory modification (milling, drilling, printing) and .stp or .x_t solid models are available. Avoid acetone, ketones, thread-locking compounds and strong solvents on ABS.
| 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, USB |
| Series | 1551USB Series ABS Plastic Miniature USB Enclosures |
| Description | Black ABS plastic USB enclosure |
| Part Number | 1551USB1BK |
| Short Description | USB 35 X 20 X 15.5MM ABS BLACK |
| Connector Compatibility | For male USB-A connectors (USB connector not included) |
| Width | 0.79 in (20 mm) |
| Length | 1.38 in (35 mm) |
| Height (Drawing) | 15.50 mm [0.61 in] |
| Size (L X W X H) | 1.38 in x 0.79 in x 0.61 in (35 mm x 20 mm x 15 mm) |
| Max. P.C. Board Width | 31.25 mm |
| Depth (Ordering Table) | 0.63 in (16 mm) |
| Max. P.C. Board Length | 15.5 mm |
| Lid Label Recess (Inlay) Depth | 0.50 mm [0.02 in] |
| UPC | 623980562605 |
| 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 |
| Other 1551USB1 Colours | 1551USB1GY (grey), 1551USB1CLR (translucent clear), 1551USB1TSK (translucent smoke), 1551USB1TRD (translucent red) |
| Same Size Without USB Cutout | 1551MINI series |
| Packaging Type | Bag |
| Shipping Weight | 0.01 lbs (0.00 kg) |
| Color | Black |
| Cover | Recessed for label installation |
| Finish | Satin texture |
| Material | ABS Plastic (general purpose) |
| RAL Colour | RAL 9011 |
| USB Cutout | Integrated USB-A male connector cutout |
| Board Mounting | Standoffs molded into interior; mounting posts accept #2 x 3/16" self-tap screws |
| IP Rating | IP51 (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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No. The enclosure has a cutout for a male USB-A connector, but the connector is not included.
The maximum PC board size is 15.5 mm x 31.25 mm, mounted on molded standoffs with #2 x 3/16" self-tapping screws (1553WTS100, pack of 100, not included).
The part page lists 35 mm x 20 mm x 15 mm (1.38 in x 0.79 in x 0.61 in); the drawing shows a 15.50 mm [0.61 in] height and the ordering table gives a 16 mm (0.63 in) depth.
The 1551USB series is designed to meet IP51.
Two black #2 x 1/2" self-tapping lid screws. Replacements are 1551USB50BK (black, pack of 50) or 1551USB50 (silver, pack of 50).
Yes, the same sizes without a USB cutout are the 1551MINI series.
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