Molex SL 171971 series, 4-circuit, 0.100" (2.54 mm) pitch, vertical through-hole, shrouded header with latch holder, tin-plated contacts, rated 3 A at 250 V, UL94 V-0.
| Parameter | Value |
|---|---|
| Series | SL 171971 |
| Type | Male Pin |
| Mounting | Through Hole |
| Connector type | Header |
| Fastening type | Latch Holder |
| Voltage rating | 250V |
| Current rating | 3A |
| Operating temperature | -40°C ~ 105°C |
| Contact material | Brass |
| Insulation color | Black |
| Insulation height | 0.465\" (11.80mm) |
| Insulation material | Liquid Crystal Polymer (LCP) |
| Parameter | Value |
|---|---|
| Material flammability rating | UL94 V-0 |
| Style | Board to Cable/Wire |
| Package | Tube |
| Features | Polarizing Key |
| Shrouding | Shrouded - 4 Wall |
| Termination | Solder |
| Applications | General Purpose |
| Contact shape | Circular |
| Rows | 1 |
| Pitch | 0.100\" (2.54mm) |
| Positions | 4 |
| Contact finish - post | Tin |
| Contact length - post | 0.130\" (3.30mm) |
| Contact finish - mating | Tin |
| Contact length - mating | 0.240\" (6.10mm) |
| Contact finish thickness - post | 100.0µin (2.54µm) |
| Contact finish thickness - mating | 100.0µin (2.54µm) |
This header mates with SL-series crimp receptacles (e.g., 70066 or 70107 housings) and IDC sockets using 0.100" pitch ribbon cable. The tin-plated mating contacts are rated for moderate cycle life — adequate for field-service connections but not for frequent reconnect duty. The polarizing key on the housing prevents reverse mating with non-keyed receptacles.
Within the SL 171971 series, the 4-position vertical header with latch holder and tin plating is the direct fit. Other 0.100" pitch 4-position shrouded headers from Molex (e.g., C-Grid III series) may be footprint-compatible but differ in latch style and keying — verify the mating receptacle before substituting.