Just-in-time(JIT)
Minimization of inventory by supplying material and components to the production line directly before placement into the product.
Jumper
An electrical connection between two points on a printed board added after the intended conductive pattern is formed.
J-leads
The preferred surface mount lead form used on PLCCs, so named because the lead departs the package body near its Z-axis centre-line, is formed down the rolled under the package. Leads so formed are shaped like the letter “J”.