For mating Board to Board Sockets see SFM Series, stock number ; 507-7308 507-7308 typical For mating IDC cable assemblies see SFSD Series, stock number ; 767-9221 767-9221 typical. Surface Mount Headers - TFM Series. These TFM Series Board to Board Headers from Samtec are SMT Terminal Strips with a 1.27 mm pitch. Current rating 2A Operating temperature -55 to 125°C TFM-xxx- 02 -x-x are 5.72mm in body height TFM-xxx- 32 -x-x are 11.18mm in body height TFM-xxx-xx- S -x-x have 0.76 m gold plated contacts and 0.076 m gold plated tails TFM-xxx-xx- L -x-x have 0.38 m gold plated contacts and tin plated tails TFM-xxx-xx-x- A have Alignment Pins TFM-xxx-xx-x- WT have Weld Tabs