STM051L23N = SMT CONN
| Parameter Name | Attribute value |
| PCB Connector Component Types | PCB mounting female terminal |
| Connectors and terminals terminate to | A printed circuit board |
| Line spacing | 1.02 mm [ .04 in ] |
| stress relief | Without |
| PCB mounting direction | level |
| Number of Positions | 51 |
| Rows | 2 |
| Backwall/Post Interruptions | Without |
| Pre-installed | yes |
| Terminal base material | beryllium copper alloy, beryllium copper alloy, beryllium copper alloy |
| Terminal contact plating material | tin lead |
| Terminal type | socket |
| PCB terminal termination area plating materials | tin lead |
| terminal vaccination | A printed circuit board |
| Panel mount features | Without |
| PCB installation method | surface mount |
| PCB mounting alignment | Without |
| joint fixation | with |
| PCB installation and fixation | Without |
| Installing/joining hardware | Without |
| Threaded mounting holes | 1 mm [ .039 in ] |
| Surface mount extension leads | Without |
| joint alignment | with |
| Joint fixation type | locking screw |
| Thread locking screw hole (socket only) | .039 in, 1 mm |
| Joint alignment type | polarization |
| Terminal positioning force | Without |
| Centerline (Pitch) | .64 mm [ .025 in ] |
| Shell material | aluminum |
| Shell plating material | nickel |
| length | 21.17 mm [ .8335 in ] |
| high | 3.2 mm [ .126 in ] |
| Package quantity | 5 |