Pitch, rows, and locking
The 350834-2: The locking ramp holds the mating receptacle in place under vibration; the through-hole solder tails (0.215" / 5.46 mm post length) anchor the header to the board.

TE Connectivity AMP Connectors Universal MATE-N-LOK header, order code 350834-2, 6 positions, 3 rows, 0.250" (6.35 mm) pitch, gold-plated mating contacts, through-hole solder termination, locking ramp fastening.
| Parameter | Value |
|---|---|
| Series | Universal MATE-N-LOK |
| Type | Female Socket |
| Mounting | Through Hole |
| Connector type | Header |
| Fastening type | Locking Ramp |
| Contact material | Phosphor Bronze |
| Insulation color | Natural |
| Insulation height | 0.550\" (13.97mm) |
| Insulation material | Polyamide (PA), Nylon |
| Material flammability rating | UL94 V-0 |
| Style | Board to Cable/Wire |
| Package | Bulk |
| Parameter | Value |
|---|---|
| Termination | Solder |
| Contact shape | Circular |
| Rows | 3 |
| Pitch | 0.250\" (6.35mm) |
| Positions | 6 |
| Row spacing - mating | 0.250\" (6.35mm) |
| Contact finish - post | Tin-Lead |
| Contact length - post | 0.215\" (5.46mm) |
| Contact finish - mating | Gold |
| Contact finish thickness - mating | 30.0µin (0.76µm) |
The 350834-2: The locking ramp holds the mating receptacle in place under vibration; the through-hole solder tails (0.215" / 5.46 mm post length) anchor the header to the board.
The 350834-2 is a Board to Cable/Wire style header with female socket contacts, 6 positions loaded across 3 rows.
RoHS and REACH status should be confirmed from the manufacturer's compliance documentation.