The M22-2021005 is a 20-contact 2mm male DIL Pin Header with gold plated phosphor bronze contacts, gold plated termination and black UL94V-0 polyamide (nylon) 6T housing. The M22 series connector has 3.4mm PC tail, vertical connector orientation, PC tail/through board connection type and side stackable. It is suitable for use with 0.5mm square mating pin size.