Axial Lead Fuses 3AB > Slo-Blo® Fuse > 325SP Series 325SP Series Lead-Free 3AB, Slo-Blo® Fuse PS E RoHS Description The 3AB Slo-Blo® Fuse with ceramic body construction permits higher interrupting ratings and voltage ratings. Ideal for applications where high current loads are expected. Features • In accordance with UL Standard 248-14 • Available in axial lead format and with various forming dimensions Agency Approvals Agency • RoHS compliant and Lead-free Agency File Number Ampere Range E10480 12A - 20A 29862 12A - 20A NBK 030805 - E10480F 12A - 15A NBK 260106 - JP1021B 20A SU05001-5011 12A - 15A SU05001-5012 20A N/A 12A - 20A Applications Used as supplementary protection in appliance or utilization equipment to provide individual protection for components or internal circuits. PS E Electrical Characteristics for Series % of Ampere Rating Ampere Rating Opening Time 100% 12 – 20A 4 hours, Minimum 135% 12 – 20A 1 hour, Maximum 200% 12 – 20A 5 sec., Min., 60 sec., Max. © 2015 Littelfuse, Inc. Specifications are subject to change without notice. Application testing istostrongly Specifications are subject change recommended. without notice. Revised: 04/22/15 Axial Lead Fuses 3AB > Slo-Blo® Fuse > 325SP Series Electrical Characteristic Specifications by Item Agency Approvals Amp Code Ampere Rating (A) Voltage Rating (V) Interrupting Rating Nominal Cold Resistance (Ohms) Nominal Melting I2t (A2 sec) PS E 012. 015. 020. 12 15 20 250 250 250 400A@250Vac 10KA@125Vac 600A@125Vdc 0.0067 0.0050 0.0034 129 245 575 x x x x x x x x x x x x Average Time Current Curves 12.0A 15.0A 20.0A Temperature Rerating Curve x x x 1000 100 TIME IN SECONDS 10 1 0.1 0.01 0.01 0.1 1 10 100 1000 CURRENT IN AMPERES Note: 1. Rerating depicted in this curve is in addition to the standard derating of 25% for continuous operation. Soldering Parameters - Wave Soldering Recommended Process Parameters: 280 260 Wave Parameter 240 220 Lead-Free Recommendation Preheat: 200 (Depends on Flux Activation Temperature) 180 160 140 120 100 80 60 40 (Typical Industry Recommendation) Temperature Minimum: 100° C Temperature Maximum: Preheat Time: 150° C 60-180 seconds Solder Pot Temperature: 260° C Maximum Solder Dwell Time: 2-5 seconds Time (Seconds) Cooling Time Preheat Time Dwell Time 240 230 220 210 200 190 180 170 160 150 140 130 120 110 90 100 80 70 60 50 40 30 0 0 20 20 10 Temperature (°C) - Measured on bottom side of board 300 Recommended Hand-Solder Parameters: Solder Iron Temperature: 350° C +/- 5°C Heating Time: 5 seconds max. Note: These devices are not recommended for IR or Convection Reflow process. © 2015 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 04/22/15 Axial Lead Fuses 3AB > Slo-Blo® Fuse > 325SP Series Product Characteristics Body: Ceramic Cap: Nickel–plated brass Leads: Tin–plated Copper MIL-STD-202, Method 211, Test Condition A Materials Terminal Strength –55ºC to +125ºC MIL-STD-202, Method 107, Test Condition B:(5 cycles - 65ºC to 125ºC) MIL-STD-202, Method 201 MIL-STD-202, Method 103, Test Condition A: High RH (95%) and Elevated temperature(40ºC) for 240 hours MIL-STD-202, Method 101, Test Condition B Operating Temperature Thermal Shock Vibration: Solderability MIL-STD-202 Method 208 Product Marking Cap1: Brand logo, current and voltage ratings Cap2: Series and agency approval marks Humidity Salt Spray Part Numbering System Dimensions Measurements displayed in millimeters (inches) 0325 xxxx M X SP P 325 000SP Series (axial leaded) Series Amp Code 6.36±0.1 (.250") Refer to Amp Code column of Electrical Characteristics Table 31.74±0.8 (1.25") Axial Lead Diameter: 0.81±0.05 (.032") for (<20A) 1.02±0.05 (.040") for (≥20A) Quantity Code M = 1000 Axial Lead Length: 21.0±0.5 (0.83") TYP. Packaging Code Axial Lead Material: Tin-coated copper Single Cap Pigtail X = Filler Lead-free Packaging Packaging Option 325SP Series Bulk Bulk Packaging Specification Quantity Quantity & Packaging Code Taping Width N/A N/A 1000 1000 MXSPP MXF48SPP N/A N/A © 2015 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 04/22/15