For infrequent mating cycles — say, once during assembly and again during field service — tin is adequate.
Right-angle mounting and board clearance
The friction lock provides a tactile click when mated and resists vibration-induced disconnection. In a panel or enclosure subject to moderate vibration, this lock holds better than a simple interference fit.
The 281698-4 is listed as Active and RoHS Compliant. The base product number 281698 covers the series; the -4 suffix indicates the 4-position variant.
Mating with HE14 crimp receptacles
This header is designed to mate with HE14-series crimp receptacle housings that accept 0.100" pitch contacts. Confirm that the receptacle housing has a 4-position cavity layout matching the header's single-row, 4-position configuration.