Littelfuse Rf0322-000.
POLYSWITCH, SMD, 3A; Thermistor Mounting:SMD; Product Range:PolySwitch Series; Holding Current:3A; Tripping Current:6A; Voltage Rating:6VDC; Operating Temperature Min:-40°C; Operating Temperature Max:85°C; Automotive Qualification Standard:-; SVHC:No SVHC (15-Jun-2015); Approval Bodies:CSA, TUV; Approval Category:ELV Compliant, UL Recognised; Carrying Current Max:40A; Initial Resistance Max:0.048ohm; Operating Voltage:6VDC; PTC Fuse Case Style:2920 [7351 Metric].