WPJ series socket for 18-22 AWG
The SWPJR-21T-M0.5A is the tin-plated socket member of JST's WPJ crimp contact series, accepting 18-22 AWG wire with a crimp termination.
Same-series pin vs socket
Within the WPJ series the SWPJR-21T-M0.5A socket mates with the SWPJT-21T-P0.5 pin — both share the 18-22 AWG wire range and tin plating, so the pair drops into the same WPJ housing cavity.
