Ingun GKS-050 214 050 A 2000 Probe, Crown Tip, 50mil

The INGUN GKS-050 214 050 A 2000 (INGUN item GKS-050-0002) is a fine-pitch spring-loaded test probe for the 1.27 mm (50 mil) grid, seated in a KS-050 receptacle.

Tip style 14 is a self-cleaning four-point crown. The four points straddle a rounded target and grip it from all sides, which makes a crown far more stable on a solder bump, a wire end or a trimmed lead than a flat or bullet-nosed tip — and because the load is split four ways, the probe bites through oxide without the punch-through risk of a single needle. At 0.5 mm this is the smallest crown available, which is what lets it work on a 50 mil (1.27 mm) grid at all. It is paired here with the heaviest spring stocked in this series, 2 N, for targets that need real force to seat; if the concern is total board load, the 1 N version of a comparable geometry is the better pick.

• Tip style 14, 4-point crown, self-cleaning; tip diameter 0.5 mm (0.019 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 2 N at working stroke, pre-load 0.55 N
• Working stroke 4.3 mm, maximum stroke 6.35 mm
• Current rating 2 A, contact resistance 20 mΩ typical
• Steel plunger, gold-plated
• Receptacle: KS-050