Axial Lead & Cartridge Fuses 3AB > Time Lag > 325/326 Series 325/326 Series Lead-Free 3AB, Slo-Blo® Fuse PS E 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 • RoHS compliant and Lead-free • In accordance with UL Standard 248-14 • Available in cartridge and axial lead format and with various forming dimensions Agency Approvals Agency Agency File Number E10480 250mA - 10A E10480 12A - 30A LR 29862 PS E Ampere Range NBK 030805E10480A-F/ NBK 260106JP1021A/B SU05001-5010 SU05001-5011 SU05001-5012 SU05001-7005 250mA - 30A 1A - 30A 2.5A - 3.2A/ 7A - 20A 10mA - 30A Applications Used as supplementary protection in appliance or utilization equipment to provide individual protection for components or internal circuits. Electrical Characteristics for Series % of Ampere Rating Ampere Rating Opening Time 100% 100mA – 30A 4 hours, Minimum 135% 100mA – 30A 1 hour, Maximum 100mA – 3.2A 5 sec., Min., 30 sec., Max. 4A – 30A 5 sec., Min., 60 sec., Max. 200% © 2012 Littelfuse, Inc. 325/326 Series Revised: December 6, 2012 Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/325.html or /326.html for current information. Axial Lead & Cartridge Fuses 3AB > Time Lag > 325/326 Series Electrical Characteristic Specifications by Item Ampere Rating (A) Voltage Rating (V) .010 .031 .062 .100 .125 .150 .175 .187 .200 .250 .300 .375 .400 .500 .600 .700 .750 .800 001. 01.2 1.25 01.5 01.6 002. 02.5 02.8 003. 0.01 0.031 0.062 0.1 0.125 0.15 0.175 0.187 0.2 0.25 0.3 0.375 0.4 0.5 0.6 0.7 0.75 0.8 1 1.2 1.25 1.5 1.6 2 2.5 2.8 3 250 250 250 250 250 250 250 250 250 250 250 250 250 250 250 250 250 250 250 250 250 250 250 250 250 250 250 03.2 3.2 250 004. 005. 6.25 007. 008. 010. 4 5 6.25 7 8 10 012. 012.* Nominal Cold Resistance (Ohms) Nominal Melting I2t (A2 sec) 3324.8000 332.5000 91.7000 33.5500 22.4500 15.4500 8.9200 7.7250 6.7700 4.4300 3.2200 2.1550 1.9350 1.3000 0.9495 0.7215 0.6410 0.5725 0.3890 0.2860 0.2680 0.1975 0.1760 0.1210 0.0835 0.0695 0.0605 0.00148 0.0110 0.0276 0.0870 0.100 0.143 0.220 0.230 0.213 0.432 0.690 1.20 1.33 2.50 3.90 6.42 7.00 8.20 16.3 22.0 24.0 40.1 45.0 80.0 136.0 170.0 200.0 100A@250Vac 10KA@125Vac 0.0539 250 250 250 250 250 250 12 12 Interrupting Rating Agency Approvals PS E x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x 214.0 x x x x x 400A@250Vac 10KA@125Vac 0.0761 0.0522 0.0346 0.0227 0.0193 0.0132 9.71 25.0 60.4 47.3 67.1 137 x x x x x x x x x x x x x x x x x x x x x x x x x x x 250 400A@250Vac 10KA@125Vac 600A@125Vdc 0.0067 129 x x 250 1500A@250Vac 0.0011 445 0.0050 245 100A@250Vac 100A@250Vac 10KA@125Vac 10KA@125Vdc 015. 15 250 400A@250Vac 10KA@125Vac 600A@125Vdc 015.* 15 250 1500A@250Vac 0.0083 760 0.0034 575 x x x x x x x x x x x x x x x x x x x 020. 20 250 400A@250Vac 10KA@125Vac 600A@125Vdc 020.* 20 250 1500A@250Vac 0.0042 2500 025. 25 250 0.0024 1030 x x x x 030. 30 250 400A@250Vac 10KA@60Vdc 600A@125Vdc 0.0019 1690 x x x x x x x x x x *Higher i2t version available. Please add suffix “D” to part numbers. For instance, 0325020.MXDP, 0326020.MXDP I2t test at 10x rated current. © 2012 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/325.html or /326.html for current information. 325/326 Series Revised: December 6, 2012 325/326 Series Amp Code Axial Lead & Cartridge Fuses 3AB > Time Lag > 325/326 Series Average Time Current Curves .375A .500A .750A 1.0A 1.5A 2.0A 2.5A 3.0A 3.5A 4.0A 5.0A 6.25A 7.0A 8.0A 10.0A 12.0A 15.0A 20.0A 25.0A 30.0A Temperature Rerating Curve 1000 100 TIME IN SECONDS 10 1 0.1 0.01 0.05 0.1 10 1 100 1000 CURRENT IN AMPERES Soldering Parameters - Wave Soldering Recommended Process Parameters: 280 260 Wave Parameter 240 220 200 Preheat: 180 (Depends on Flux Activation Temperature) 160 140 120 100 80 60 40 Lead-Free Recommendation (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. © 2012 Littelfuse, Inc. 325/326 Series Revised: December 6, 2012 Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/325.html or /326.html for current information. Axial Lead & Cartridge Fuses 3AB > Time Lag > 325/326 Series Product Characteristics Materials Terminal Strength Solderability Product Marking Body: Ceramic Cap: Nickel–plated brass Leads: Tin–plated Copper MIL-STD-202G, Method 211A, Test Condition A Reference IEC 60127 Second Edition 2003-01 Annex A Operating Temperature Cap1: Humidity Cap2: –55ºC to +125ºC MIL-STD-202G, Method 107G, Test Condition B:(5 cycles - 65ºC to 125ºC) MIL-STD-202G, Method 201A MIL-STD-202G, Method 103B, Test Condition A: High RH (95%) and Elevated temperature(40ºC) for 240 hours MIL-STD-202G, Method 101D, Test Condition B Thermal Shock Vibration: Brand logo, current and voltage ratings Series and agency approval marks Salt Spray Part Numbering System Dimensions Measurements displayed in millimeters (inches) 326 000P Series (cartridge) 0325 xxxx M X P 325 000P Series (axial leaded) 6.35±0.3 (.25") Series 6.985±0.3 (.275") 31.75±1.12 (1.25") Amp Code Refer to Amp Code column of Electrical Characteristics Table 32.72±1.12 (1.288") Axial Lead Diameter: 0.81±0.05 (.032") for (0.01A - 15A) 1.02±0.06 (.040") for (20A - 30A) Quantity Code Axial Lead Length: 38.1±3.15 (1.50") TYP. M = 1000 Packaging Code Axial Lead Material: Tin-coated copper X = Filler Lead-free Packaging Option Packaging Specification Quantity Quantity & Packaging Code Taping Width N/A N/A 1000 100 MX HX N/A N/A N/A N/A 1000 100 MX HX N/A N/A 325 Series Bulk Bulk 326 Series Bulk Bulk © 2012 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/325.html or /326.html for current information. 325/326 Series Revised: December 6, 2012 325/326 Series Packaging