Hirose updated a number of their connectors several years ago for current RoHS standards, leading to a suffix change. Per their PCN from the time, there isn’t any performance specification change between the two, it only changes packaging and specific types of acid used in the resin.
Here’s a copy of the product change notification: https://media.digikey.com/pdf/PCNs/Hirose%20Display/430-18008.pdf
Applicable Parts
SR30-10PG-6P(71) SR30-10PG-6P(31)
SR30-10PM-6P(71) 103-0288-8-31 SR30-10PM-6P(31)
SR30-10PX-6P(71) 103-0336-9-31 SR30-10PX-6P(31)
SR30-10PM-4P(71) 103-0341-9-31 SR30-10PM-4P(31)
SR40-14P-32P(71) 103-0403-4-31 SR40-14P-32P(31)
HA16PRY-3SE(71) 104-0465-8-31 HA16PRY-3SE(31)
HR08D-12WR-10P 108-0218-4-31 HR08D-12WR-10P(31)
HR08D-12WPA-10S 108-0219-7-31 HR08D-12WPA-10S(31)
HR08D-12WPA-10SC 108-0220-6-31 HR08D-12WPA-10SC(31)
HR08D-12WLPA-10S 108-0221-9-31 HR08D-12WLPA-10S(31)
HR08D-12WLPA-10SC 108-0222-1-31 HR08D-12WLPA-10SC(31)
HR08D-12WLPA-10SC(01) 108-0222-1-32 HR08D-12WLPA-10SC(32)
HR08D-12WPB-10S 108-0231-2-31 HR08D-12WPB-10S(31)
HR08D-12WPB-10SC 108-0232-5-31 HR08D-12WPB-10SC(31)
HR08D-12WLPB-10S 108-0233-8-31 HR08D-12WLPB-10S(31)
HR08D-12WLPB-10SC 108-0234-0-31 HR08D-12WLPB-10SC(31)
HR08D-12WPK-10S 108-0262-6-31 HR08D-12WPK-10S(31)
HR08D-12WPK-10SC 108-0263-9-31 HR08D-12WPK-10SC(31)
HR08D-12WLPK-10S 108-0264-1-31 HR08D-12WLPK-10S(31)
HR08D-12WLPK-10SC 108-0265-4-31 HR08D-12WLPK-10SC(31)
HR08D-12WPN-2S 108-0266-7-31 HR08D-12WPN-2S(31)
HR08D-12WLPN-2S 108-0267-0-31 HR08D-12WLPN-2S(31)
HR08D-12WPM-10SC 108-0268-2-31 HR08D-12WPM-10SC(31)
HR08D-12WPN-10SC 108-0269-5-31 HR08D-12WPN-10SC(31)
HR08D-12WLPM-10SC 108-0270-4-31 HR08D-12WLPM-10SC(31)
HR08D-12WLPN-10SC 108-0271-7-31 HR08D-12WLPN-10SC(31)
HR08D-12WPM-2S 108-0272-0-31 HR08D-12WPM-2S(31)
HR08D-12WLPM-2S 108-0273-2-31 HR08D-12WLPM-2S(31)
HR08D-12WPM-10S 108-0274-5-31 HR08D-12WPM-10S(31)
HR08D-12WPN-10S 108-0275-8-31 HR08D-12WPN-10S(31)
HR08D-12WLPM-10S 108-0276-0-31 HR08D-12WLPM-10S(31)
HR08D-12WLPN-10S 108-0277-3-31 HR08D-12WLPN-10S(31)
HR08D-12WPQ-10S 108-0278-6-31 HR08D-12WPQ-10S(31)
HR08D-12WPA-2S 108-0279-9-31 HR08D-12WPA-2S(31)
HR08D-12WPB-2S 108-0280-8-31 HR08D-12WPB-2S(31)
HR08D-12WPK-2S 108-0281-0-31 HR08D-12WPK-2S(31)
HR08D-12WLPA-2S 108-0282-3-31 HR08D-12WLPA-2S(31)
HR08D-12WLPB-2S 108-0283-6-31 HR08D-12WLPB-2S(31)
HR08D-12WLPK-2S 108-0284-9-31 HR08D-12WLPK-2S(31)
HR08D-12WPS-10S 108-0285-1-31 HR08D-12WPS-10S(31)
RM15WTLP-10P(71) 109-0020-0-31 RM15WTLP-10P(31)
RM15TR-C(71) 109-0080-5-31 RM15TR-C(31)
RM21TR-C(71) 109-0354-9-31 RM21TR-C(31)
RM31TR-C(71) 109-0394-3-31 RM31TR-C(31)
RM24TR-C(71) 109-0492-2-31 RM24TR-C(31)
RM15TPN-10PC(71) 109-0712-7-31 RM15TPN-10PC(31)
RM15TPN-10PC(72) 109-0712-7-32 RM15TPN-10PC(32)
RM15TR-C4(71) 109-0986-2-31 RM15TR-C4(31)
RM15TR-C7(75) 109-0990-0-35 RM15TR-C7(35)
RM15WTLP-12P(71) 109-0997-9-31 RM15WTLP-12P(31)
RM15WTLP-12P(72) 109-0997-9-32 RM15WTLP-12P(32)
RM15WTLP-10S(71) 109-0999-4-31 RM15WTLP-10S(31)
RM12WTPE-6S-(4)(81) 109-1092-0-31 RM12WTPE-6S-(4)(31)
RM12WTJA-6P-(4)(71) 109-1136-3-31 RM12WTJA-6P-(4)(31)
RM12WBP-6P(71) 109-1150-4-31 RM12WBP-6P(31)
RM21WTP-15S(81) 109-1401-2-31 RM21WTP-15S(31)
RM21WTP-20S(81) 109-1402-5-31 RM21WTP-20S(31)
RM21WTP-15P(71) 109-1403-8-31 RM21WTP-15P(31)
RM21WTP-20P(71) 109-1404-0-31 RM21WTP-20P(31)
RM21WTR-15P(71) 109-1445-8-31 RM21WTR-15P(31)
RM21WTR-20P(71) 109-1446-0-31 RM21WTR-20P(31)
RM21WTR-15S(81) 109-1447-3-31 RM21WTR-15S(31)
RM21WTR-20S(81) 109-1448-6-31 RM21WTR-20S(31)
RM24WTP-CP(14)(71) 109-1495-6-31 RM24WTP-CP(14)(31)
RM31WTR-40S(71) 109-1527-0-85 RM31WTR-40S(85)
RM31WTP-40P(71) 109-1573-8-85 RM31WTP-40P(85)
RM24WTP-CP14(71) 109-1851-9-31 RM24WTP-CP14(31)
RM15WTLP-4P(71) 109-1886-3-31 RM15WTLP-4P(31)
RM15WTLP-8P(71) 109-1887-6-31 RM15WTLP-8P(31)
RM15WTLP-4S(82) 109-1888-9-32 RM15WTLP-4S(32)
RM15WTLP-8S(72) 109-1889-1-32 RM15WTLP-8S(32)
RM15WTLP-20P 109-1907-1-31 RM15WTLP-20P(31)
RM15WTLP-12S(71) 109-1911-9-31 RM15WTLP-12S(31)
KMC9BPD-4P(71) 110-0013-8-31 KMC9BPD-4P(31)
KMC9BPD-6P(71) 110-0018-1-31 KMC9BPD-6P(31)
HR10-10PA-12P(73) 110-0051-7-31 HR10-10PA-12P(31)
HR10-10PA-12S(73) 110-0054-5-31 HR10-10PA-12S(31)
HR10WT-B(74) 110-0066-4-31 HR10WT-B(31)
RP6-12P-10PA(383)(71) 113-0117-2-31 RP6-12P-10PA(383)(31)
RP13A-12PB-13SC(71) 113-0184-0-31 RP13A-12PB-13SC(31)
JR13WCC-10-A 114-0010-0-31 JR13WCC-10-A(31)
JR13WCC-8-A 114-0011-0-31 JR13WCC-8-A(31)
JRC21BP-26S(71) 114-0267-1-31 JRC21BP-26S(31)
JRC21BPA-26P(71) 114-0268-4-31 JRC21BPA-26P(31)
JRC25WRG-16P(74) 114-1032-3-31 JRC25WRG-16P(31)
JRC25WRG-24P(74) 114-1033-6-31 JRC25WRG-24P(31)
JRC25WRG-16S(74) 114-1043-0-31 JRC25WRG-16S(31)
JRC25WRG-24S(74) 114-1044-2-31 JRC25WRG-24S(31)