Ingun GKS-050 307 090 A 1000, Chisel Tip, 50mil

The INGUN GKS-050 307 090 A 1000 (INGUN item GKS-050-0013) is a fine-pitch spring-loaded test probe for the 1.27 mm (50 mil) grid, seated in a KS-050 receptacle so probes can be replaced from the top of the fixture.

Tip style 07 is a 90° three-edged chisel, self-cleaning. The three edges meet in a line rather than a point, so the probe cuts a short scrub track across the target as it compresses — enough to break through oxide and flux residue on a flat pad without the single-point concentration of a needle. That makes it a good middle ground on a dense board: more reliable than a bullet nose on a dirty pad, gentler and less prone to punching through thin plating than a dagger. At 0.9 mm the chisel is the standard face for this series, and the 1 N spring keeps the aggregate load low across a 50 mil (1.27 mm) field.

• Tip style 07, 90° 3-edged chisel, self-cleaning; tip diameter 0.9 mm (0.035 in)
• Barrel diameter 0.78 mm (0.03 in), total length 43.2 mm (1.7 in)
• Grid pitch 1.27 mm (50 mil)
• Spring force 1 N at working stroke, pre-load 0.44 N
• Working stroke 4.3 mm, maximum stroke 6.35 mm
• Current rating 2 A, contact resistance 20 mΩ typical
• CuBe plunger, gold-plated; plug-in, quick-exchange, RoHS
• Receptacle: KS-050. Operating range −40 °C to 80 °C