ZH / ZR Series
The ordering part number would be B**B-ZR-SM4-TFT (LF)(SN). Where “**” is replace with the applicable number of circuits.
What does the “-P” suffix indicate on part number ( )ZR-8M-P? [replace ( ) with the applicable number of circuits]
The “-P” indicates pre-tin plating and thus makes the IDC connector RoHS compliant.
The difference is the housing / wafer material…
SM3 is made of 46 Nylon glass-filled
SM4 is made of PA 6T Nylon glass-filled and is the RoHS compliant version.
The SM4 is better than SM3 for the higher temperatures required for the lead-free solder reflow process.
RE: B*B-ZR-SM4-*-TF(LF)(SN)
The recommended storage temperature range is +5C to +35C. The recommended maximum storage humidity is 60%.