The Keystone Electronics 5019 is a miniature surface-mount PCB test point made from silver-plated phosphor bronze and supplied on 1,000-piece reels (Keystone product page). Its most common use is to provide a dedicated, mechanically accessible connection to a PCB net for a probe, clip, or hook during board bring-up, production testing, and troubleshooting (Keystone SMT test-point catalog).

Verification scope: Manufacturer product-page facts and distributor packaging information below were checked on October 6, 2026. The project datasheet lookup remained pending after two attempts, so citation-backed drawing dimensions, pad g...