Axial Lead & Cartridge Fuses 3AB > Time Lag > 325/326 Series 325/326 Series (R) Lead-Free 3AB, Slo-Blo PS E Fuse Description The 3AB Slo-Blo(R) Fuse with ceramic body construction permits higher interrupting ratings and voltage ratings. Ideal for applications where high current loads are expected. Features t *OBDDPSEBODFXJUI6- Standard 248-14 t "WBJMBCMFJODBSUSJEHF and axial lead format and with various forming dimensions Agency Approvals Agency File Number E10480 250mA - 10A E10480 12A - 30A LR 29862 PS E Ampere Range NBK 030805E10480A-F/ NBK 260106JP1021A/B SU050105012/6006/6007/7005 Applications Used as supplementary protection in appliance or utilization equipment to provide individual protection for components or internal circuits. 250mA - 30A 1A - 30A Electrical Characteristics for Series 2.5A - 3.2A/ 7A - 30A % of Ampere Rating Ampere Rating Opening Time 100% 100mA - 30A 4 hours, Minimum 10mA - 30A 135% 200% (c) 2009 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/325.html or /326.html for current information. 329 Revised: January 7, 2009 100mA - 30A 1 hour, Maximum 100mA - 3.2A 5 sec., Min., 30 sec., Max. 4A - 30A 5 sec., Min., 60 sec., Max. 325/326 Series 325/326 Series Agency t 3P)4DPNQMJBOUBOE Lead-free Introduction to & Circuit Protection Axial Lead Cartridge Fuses 3AB > Time Lag > Transientology 325/326 Series Electrical Characteristic Specifications by Item Amp Code Ampere Rating (A) Voltage Rating (V) Interrupting Rating Nominal Cold Resistance (Ohms) Nominal Melting I2t (A2 sec) Agency Approvals PS E .010 0.01 250 3324.8000 0.00148 x .031 0.031 250 332.5000 0.0110 x .062 0.062 250 91.7000 0.0276 x .100 0.1 250 33.5500 0.0870 x .125 0.125 250 22.4500 0.100 x .150 0.15 250 15.4500 0.143 x .175 0.175 250 8.9200 0.220 x x 100A@250Vac .187 0.187 250 7.7250 0.230 .200 0.2 250 6.7700 0.213 .250 0.25 250 4.4300 0.432 x x x x .300 0.3 250 3.2200 0.690 x x x .375 0.375 250 2.1550 1.20 x x x .400 0.4 250 1.9350 1.33 x x x .500 0.5 250 1.3000 2.50 x x x .600 0.6 250 0.9495 3.90 x x x .700 0.7 250 0.7215 6.42 x x x .750 0.75 250 0.6410 7.00 x x x .800 0.8 250 0.5725 8.20 x x x 100A@250Vac 10KA@125Vac 10KA@125Vdc 001. 1 250 0.3890 16.3 x x x x 01.2 1.2 250 0.2860 22.0 x x x x 1.25 1.25 250 0.2680 24.0 x x x x 01.5 1.5 250 0.1975 40.1 x x x x 01.6 1.6 250 0.1760 45.0 x x x x 0.1210 002. 2 250 80.0 x x x x 02.5 2.5 250 0.0835 136.0 x x x x x 02.8 2.8 250 0.0695 170.0 x x x x x 003. 3 250 0.0605 200.0 x x x x x 0.0539 214.0 x x x x x 03.2 3.2 100A@250Vac 100KA@125Vac 250 004. 4 250 0.0761 9.71 x x x x 005. 5 250 0.0522 25.0 x x x x 6.25 6.25 250 007. 7 250 0.0346 60.4 x x x x 0.0227 47.3 x x x 008. 8 x 250 0.0193 67.1 x x x x 010. x 10 250 0.0132 137 x x x x x 012. 12 250 0.0067 129 x x 012.* 12 250 0.0011 445 015. 15 250 0.0050 245 015.* 15 250 0.0083 760 020. 250 0.0034 575 020.* 20 20 250 0.0042 1900 025. 25 125 0.0024 1030 030. 30 125 0.0019 1690 400A@250Vac 10KA@125Vac 400A@250Vac 10KA@125Vac 500A@60Vdc 400A@125Vac 10KA@60Vdc 600A@125Vdc 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 *Higher I t version available. 0325020.MXDP nominal I t is 2507 A Sec 2 325/326 Series 2 2 330 Revised: January 7, 2009 (c) 2009 Littelfuse, Inc. 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 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 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 240 230 220 210 200 190 180 170 160 140 150 130 120 110 90 100 80 70 60 50 40 30 0 0 20 20 Recommended Hand-Solder Parameters: Time (Seconds) Cooling Time Preheat Time Solder Iron Temperature: 350 C +/- 5C Heating Time: 5 seconds max. Dwell Time Note: These devices are not recommended for IR or Convection Reflow process. (c) 2009 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/325.html or /326.html for current information. 331 Revised: January 7, 2009 325/326 Series 325/326 Series Recommended Process Parameters: 280 10 Temperature (C) - Measured on bottom side of board 300 Introduction to & Circuit Protection Axial Lead Cartridge Fuses 3AB > Time Lag > Transientology 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: -55C to +125C MIL-STD-202G, Method 107G, Test Condition B:(5 cycles - 65C to 125C) MIL-STD-202G, Method 201A MIL-STD-202G, Method 103B, Test Condition A: High RH (95%) and Elevated temperature(40C) 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 Dimensions Part Numbering System 326 000P Series 325 000P Series 0325 xxxx M X P 0.813 (.032") ( 1/100 -15A) 1.016 (.040") (20 -30A) 6.985 (.275") Series Amp Code 6.35 (.25") 31.75 (1.25") Refer to Amp Code column of Electrical Characteristics Table 32.72 (1.288") 38.1 (1.50") TYP. Quantity Code M = 1000 Axial Lead Material: Tin coated copper. Packaging Code X = Filler Lead-free Packaging Packaging Option 325 Series Bulk Bulk Bulk Bulk Bulk Bulk Bulk 326 Series Bulk Bulk Bulk Bulk Bulk 325/326 Series Packaging Specification Quantity Quantity & Packaging Code Reel Size N/A N/A N/A N/A N/A N/A N/A 5 100 1000 1000 1000 1000 1000 VX HX MX MX52 MX52L MXD MXF31 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A 5 100 1000 1000 1000 VX HX MX MXCC MXD N/A N/A N/A N/A N/A 332 Revised: January 7, 2009 (c) 2009 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/325.html or /326.html for current information.