Axial Lead & Cartridge Fuses 3AG > Time Lag > 373/375 Series RoHS Pb 373/375 Series Lead-Free 3AG, Slo-Blo Fuse Description The 3AG Slo-Blo fuse solves a broad range of application requirements while offering reliable performance and cost- effective circuit protection. Features In accordance with UL RoHS compliant and Standard 248-14 Lead-free Available in cartridge and axial lead format and with various forming Agency Approvals dimensions Agency Agency File Number Ampere Range Applications E10480 Used as supplementary protection in appliance or 12A, 15A utilization equipment to provide individual protection for LR 29862 components or internal circuits. Electrical Characteristics by Series Additional Information % of Ampere Ampere Rating Opening Time Rating 100% 12A, 15A 4 hours, Minimum Resources Datasheet Samples 135% 12A, 15A 1 hour, Maximum 373 Series 373 Series 373 Series 5 sec., Min., 200% 12A, 15A 60 sec Max Resources Datasheet Samples 375 Series 375 Series 375 Series 2018 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 01/16/18Axial Lead & Cartridge Fuses 3AG > Time Lag > 373/375 Series Electrical Characteristic Specifications by Item Agency Approvals Nominal Cold Nominal Ampere Rating Voltage Rating Interrupting Amp Code Resistance Melting (A) (V) Rating 2 2 (Ohms) I t (A sec) 012. 12 125 0.0065 1200 x x x 10kA 125Vac 015. 15 125 0.0050 1870 x x x Temperature Rerating Curve Average Time Current Curves 1000 100 10 1 0.1 0.01 0.001 0.01 0.1 110 100 1000 CURRENT IN AMPERES Soldering Parameters - Wave Soldering Recommended Process Parameters: 300 280 Wave Parameter Lead-Free Recommendation 260 240 Preheat: 220 (Typical Industry Recommendation) (Depends on Flux Activation Temperature) 200 Temperature Minimum: 100 C 180 160 Temperature Maximum: 150 C 140 Preheat Time: 60-180 seconds 120 100 Solder Pot Temperature: 260 C Maximum 80 Solder Dwell Time: 2-5 seconds 60 40 20 Recommended Hand-Solder Parameters: 0 Solder Iron Temperature: 350 C +/- 5C Time (Seconds) Heating Time: 5 seconds max. Preheat Time Cooling Time Note: These devices are not recommended for IR or Dwell Time Convection Reflow process. 2018 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 01/16/18 Temperature (C) - Measured on bottom side of board 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210 220 230 240 TIME IN SECONDS 12A 15A