5.00 mm Pitch, 13-Position Shrouded Header for Terminal Block Interfaces
The 1-2351885-3: The shroud covers all four sides of the pins, which protects the contacts during handling and prevents mis-mating in a panel or enclosure — a practical detail when you're wiring up a control cabinet and don't want to chase a bent pin.
Through-Hole Vertical Mount with Tin-Plated Contacts
The header mounts through-hole with a vertical orientation, so the pins stand straight up from the board — the insulation height is 0.472" (12.00 mm) and the contact tail length is 0.177" (4.50 mm). Contact mating finish is tin, which is the standard choice for moderate-cycle industrial applications where cost matters more than thousands of matings. Tin works fine here — the header is typically soldered once and the plug cycles on and off during maintenance, not daily.
The 1-2305909-1 is a 13-position header from the same Buchanan series, also active and bulk-packaged. The key difference is the contact plating — 1-2305909-1 carries tin plating as well, so functionally it is a direct alternative for the same footprint and mating half. If you see 1-2305909-1 on a BOM and need 1-2351885-3, the swap is straightforward: same pitch, same position count, same current rating. The 1-2213934-1 and 1-2213935-1 are also active bulk-packaged headers in the same series, but their position counts differ — verify your BOM position count before substituting.