SN4890T1R1 SN4894MIR1 Sn48Pb52 0.6mm 1000G Sn48Pb52 0.6mm 100G Sn48Pb52 0.6mm 250G Sn48Pb52 0.6mm 500G Sn48Pb52 0.6mm 700G Sn48Pb52 0.8mm 1000G Sn48Pb52 0.8mm 100G Sn48Pb52 0.8mm 250G