Board-to-wire header with shrouded 4-wall
The 1719771221 is the 21-circuit member of Molex's SL 171977 board-to-wire header line, a single-row surface-mount right-angle part with a shrouded 4-wall housing.
Molex 1719771221 SL Header, 21-Pos 2.54mm SMT Right-Angle
MPN1719771221
Active
Molex SL 171977 header, order code 1719771221, 21 positions, single row, 0.100" (2.54 mm) pitch, 3 A, 250 V, gold-plated mating contacts, surface-mount right-angle, solder termination, shrouded 4-wall.
$6.0782Ref. price · indicative, final on quote
Source DocumentedChannel stated on listing & quote
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Independent China distributor & sourcing agent· Listing updated Aug 2026
Specifications
| Parameter | Value |
|---|---|
| Series | SL 171977 |
| Type | Male Pin |
| Mounting | Surface Mount, Right Angle |
| 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 | 0.276\" (7.00mm) |
| Insulation material | Liquid Crystal Polymer (LCP) |
All specifications
| Parameter | Value |
|---|---|
| Material flammability rating | UL94 V-0 |
| Style | Board to Cable/Wire |
| Features | Board Guide, Polarizing Key |
| Package | Bulk |
| Shrouding | Shrouded - 4 Wall |
| Termination | Solder |
| Contact shape | Circular |
| Rows | 1 |
| Pitch | 0.100\" (2.54mm) |
| Positions | 21 |
| Contact finish - post | Tin |
| Contact finish - mating | Gold |
| Contact length - mating | 0.240\" (6.10mm) |
| Contact finish thickness - post | 78.7µin (2.00µm) |
| Contact finish thickness - mating | 29.5µin (0.75µm) |
Product details
Frequently asked questions
What compliance documentation does Molex provide for the 1719771221?
The housing material is rated UL94 V-0. RoHS and REACH compliance documentation is available from Molex per the product drawing.