The TS391AX250 from Chip Quik Inc. is a thermally stable leaded no-clean solder paste with a Sn63/Pb37 (63/37) composition, supplied in a jar of 8.8 oz (250 g).
The TS391AILT from STMicroelectronics is a general-purpose comparator Integrated Circuit with 1 comparator (CMOS, DTL, ECL, MOS, TTL) in a SOT-23-5 package.
The TS391AX10 from Chip Quik Inc. is a thermally stable, leaded, no-clean solder paste in Sn63Pb37 (63/37) composition, supplied in a 10 cc syringe (1.23 oz, 35 g).