The TE Connectivity Buchanan 1-282841-0 is a 10-position, single-level PCB terminal block with a 0.200" (5.08mm) pitch. It uses a screw-driven rising cage clamp to terminate solid or stranded wire from 12 AWG down to 30 AWG — the clamp lifts inside the housing, pulling the conductor against the current bar. The M3 screw gets torqued to 0.79 Nm (7.0 Lb-In), which is enough bite for the 17.5 A rating without crushing fine strand. The green polyamide (PA66) housing carries the Buchanan series look and the side interlock lets you snap multiple blocks together on the same rail for a multi-circuit strip without extra hardware.
How the Ratings Drive the Fit
The 0.200" (5.08mm) pitch is the first thing to check against your PCB footprint — it's wider than a typical signal terminal block, which gives you room for the M3 screw and the cage mechanism, but it also means each position takes up more board edge. The 17.5 A current rating at 300 V is a power-level spec, not signal; the rising cage clamp and tin-plated brass contact bar handle that current without hot spots, but if you're running near the limit, the PA66 housing's temperature rating (not stated here, but typical for nylon 6/6) means derate above 85°C ambient. The side interlock feature is the one that trips people up: it's a dovetail that slides into the adjacent block, so you can build a 20-position assembly from two 10-position blocks — but the interlock only works if you buy the same series and same orientation (horizontal with board).