Actually, perhaps JST PNI series is the wire-to-wire that mates with PH? Looks fairly similar.
https://www.lcsc.com/mobile/product-detail/Housings-Wire-To-Board-Wire-To-Wire_JST-PNIRR-02VF_C594849.html
the latch detail looks different
It's probably a variation that JST themselves don't make, but Chinese clone manufacturers have come up with.
From a brief search, these seem to be a match:
https://www.lcsc.com/mobile/product-detail/Housings-Wire-To-Board-Wire-To-Wire_DLL-PH-2R_C20598779.html
https://www.lcsc.com/mobile/product-detail/Housings-Wire-To-Board-Wire-To-Wire_HCTL-HC-PH-2EY-05_C20417768.html
Actually, perhaps JST PNI series is the wire-to-wire that mates with PH? Looks fairly similar.
https://www.lcsc.com/mobile/product-detail/Housings-Wire-To-Board-Wire-To-Wire_JST-PNIRR-02VF_C594849.html