Axial Lead & Cartridge Fuses 3AB > High I2t > 328 Series 328 Series, Lead-Free 3AB, High Surge Withstanding Fuse Description The 328 Series is a 300VAC rated, 10kA surge withstanding, 6.3×32mm ceramic fuse, designed in accordance to UL248-14 Standard, provided in cartridge and axial-lead packages. Features • High surge withstanding capability – 20 hits of 10kA 8/20μs surge Agency Approvals Agency Agency File Number Ampere Range E10480 21A – Meets ANSI/IEEE C62.41, Category C-High – Meets US Dept of Energy (DOE) MSSLC/ CBEA street lighting and parking lot lighting, elevated level • Small form factor (6.3×32mm) with cartridge and axial-lead package options • High breaking capacity: 200A@300VAC • Lead-free, RoHS compliant, halogen-free • Compliant with UL24814 and NFPA 70 (NEC) primary fusing requirements • Operating temperature: –55°C to 125 ° Electrical Characteristics Applications Commercial and outdoor LED luminaries % of Ampere Rating Ampere Rating Opening Time 100% 21A 4 hours, minimum Outdoor electronics and electrical equipment 120 sec., maximum 200% Electrical Characteristics Amp Rating (A) Voltage Rating (VAC) Interrupting Rating Surge Rating Nominal Cold Resistance (Ohms) Nominal Melting 2 I t (A2 sec) 21 300 200A @ 300VAC 1.2/50 - 8/20µs, 20kV/10kA 20 hits 0.0042 4,800 © 2013 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 04/16/13 Agency Approvals E10480 Axial Lead & Cartridge Fuses 3AB > High I2t > 328 Series Temperature Rerating Curve 21 A Average Time Current Curves 10000 1000 Time (seconds) 100 10 1 0.1 0.01 0.001 10 100 1000 Amps Soldering Parameters - Wave Soldering Recommended Process Parameters: 280 Wave Parameter 260 240 Lead-Free Recommendation Preheat: 220 (Depends on Flux Activation Temperature) 200 180 160 140 120 100 80 60 (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 40 Recommended Hand-Solder Parameters: 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 Solder Iron Temperature: 350°C ±5°C Heating Time: 5 seconds max. Note: These devices are not recommended for IR or Convection Reflow process. © 2013 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 04/16/13 Axial Lead & Cartridge Fuses 3AB > High I2t > 328 Series Product Characteristics Materials Body: Ceramic Cap: Nickel–plated brass Leads: Tin–plated copper Terminal Strength MIL-STD-202G, Method 211A, Test Condition A Solderability Reference IEC 60127 Second Edition 2003-01 Annex A Product Marking Cap1: Brand logo, current and voltage ratings Cap2: Series and agency approval marks Operating Temperature –55OC to +125OC Thermal Shock MIL-STD-202G, Method 107G, Test Condition B: (5 cycles –65°C to +125°C) Vibration MIL-STD-202G, Method 201A MIL-STD-202G, Method 103B, Test Condition A. High RH (95%) and elevated temperature (40°C) for 240 hours. MIL-STD-202G, Method 101D, Test Condition B Humidity Salt Spray Dimensions Part Numbering System Measurements displayed in millimeters (inches). 0328 xxxx M X E P Series 6.985 (.275˝) ±0.3 6.35 (.25”) ±0.3 31.75 (1.25˝) ±1.12 1.20 (0.05˝) ±0.05 32.72 (1.288˝) ±1.12 Amp Code Refer to Amp Code column of Electrical Characteristics Table Quantity Code M = 1000 38.1 (1.50˝) ±3.15 Packaging Code X = Filler Option Codes Blank: Cartridge Type Fuse E: Axial Lead Fuse Lead-free Packaging Packaging Option Packaging Specification Quantity Quantity & Packaging Code Taping Width N/A 1000 MX N/A 328 Series Bulk © 2013 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 04/16/13 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Littelfuse: 0328021.MXP 0328021.MXEP