0312035.MXP

Axial Lead & Cartridge Fuses 3AG > Fast Acting > 312/318 Series 312/318 Series Lead-Free 3AG, Fast-Acting Fuse RoHS Pb PS E Description The 312 and 318 Series are 3AG Fast-Acting fuses that solve solves a broad range of application requirements while offering reliable performance and cost-effective circuit protection. 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 Applications Agency File Number E10480 PS E Ampere Range 0.062 - 10A Used as supplementary protection in appliance or utilization equipment to provide individual protection for components or internal circuits. 12A-25A 29862 312 Series: 0.062A - 30A 318 Series: 0.062A - 10A (312 Series) NBK060618-E10480A NBK060618-E10480C 1A - 5A 6A - 10A (318 Series) NBK060618-E10480B NBK060618-E10480D Electrical Characteristics for Series % of Ampere Rating Ampere Rating Opening Time 100% 0.062A – 35A 4 hours, Minimum 1A - 5A 6A - 10A 135% 0.062A – 35A 1 hour, Maximum E10480 318 Series: 12A - 30A 200% SU05001-6008 SU05001-5005 SU05001-5006 1A - 2A 3A - 6A 7A - 10A N/A 0.062A - 10A 0.062A – 10A 5 sec., Maximum 12A – 30A 10 sec., Maximum 35A 20 sec., Maximum Additional Information Datasheet 312 Series Resources 312 Series Samples 312 Series Datasheet 318 Series Resources 318 Series Samples 318 Series Accessories 312 & 318 Series For recommended fuse accessories for this product series, see ‘Recommended Accessories’ section. © 2020 Littelfuse, Inc. Specifications are subject to change without notice. Revised: GD. 12/14/20 Axial Lead & Cartridge Fuses 3AG > Fast Acting > 312/318 Series Electrical Characteristic Specifications by Item Ampere Rating (A) Voltage Rating (V) .062 0.062 .100 0.1 .125 Agency Approvals Nominal Cold Resistance (Ohms) Nominal Melting I2t (A2 sec) 250 24.7 0.000249 x - - - x x 250 11.28 0.00171 x - - - x x 0.125 250 7.145 0.00289 x - - - x x .150 0.15 250 5.13 0.00550 x - - - x x .175 0.175 250 3.875 0.00960 x - - - x x .187 0.187 250 3.42 0.0128 x - - - x x .200 0.2 250 3.02 0.0165 x - - - x x .250 0.25 250 2.01 0.0355 x - - - x x .300 0.3 250 1.405 0.0689 x - - - x x .375 0.375 250 0.825 0.185 x - - - x x .500 0.5 250 0.498 0.483 x - - - x x .600 0.6 250 0.362 0.88 x - - - x x .750 0.75 250 0.2445 1.84 x - - - x x 001. 1 250 0.19 0.76 x - x x x x 1.25 1.25 250 0.1385 1.45 x - x x x x 01.5 1.5 250 0.1036 2.35 x - - x x x 01.6 1.6 250 0.0934 2.8 x - x x x x 1.75 1.75 250 0.0856 3.6 x - - x x x 01.8 1.8 250 0.0825 3.85 x - - x x x 002. 2 250 0.0704 5.2 x - x x x x 2.25 2.25 250 0.0594 7.2 x - x x x x 02.5 2.5 250 0.0513 9.54 x - x x x x 003. 3 250 0.0427 14.0 x - x x x x 004. 4 250 0.0293 28.5 x - x x x x 005. 5 250 0.0224 50.0 x - x x x x 006. 6 250 0.0178 118.0 x - x x x x 007. 7 250 0.0146 81.0 x - x x x x 008. 8 250 0.0122 166.0 x - x x x x 010. 10 250 0.0093 298.0 x - x x x x 012. 12 32 0.0072 234.6 x† x** - - x† - 015. 15 32 0.0052 490.5 x† x** - - x† - 020. 20 32 0.0035 1414 x† x** - - x† - 025. 25 32 0.0024 2041 x† x** - - x† - 030. 30 32 0.0019 3717 - x** - - x† - 035. 35 32 0.0013 7531 - - - - - - Amp Code Interrupting Rating 35A@250Vac 10KA@125Vac 100A@250Vac 10KA@125Vac 200A@250Vac 10KA@125Vac 300A@32 Vac PS E Notes: * - For 312 and 318 Series: Listed for the US and Canada (cULus) ** - For 318 Series (12A-25A) and 312 Series (30A only): Recognized for the US and Canada (cURus). † - For 312 series only. © 2020 Littelfuse, Inc. Specifications are subject to change without notice. Revised: GD. 12/14/20 Axial Lead & Cartridge Fuses 3AG > Fast Acting > 312/318 Series 12A 15A 20A 25A 30A 35A .250 A .375 A .500 A .750 A 1A 1.5 A 2A 2.5 A 3A 4A 5A 6A 7A 8A 10 A .125 A 1000 .062 A Average Time Current Curves 10000 1000 100 Time (seconds) Time (seconds) 100 10 10 1 1 0,1 0,01 0.1 0,001 0,01 0,1 1 10 100 1000 Current (amps) 0.01 0.005 0.01 0.1 1 10 100 Current (amps) *Please contact Littelfuse for more details on those T-C Curves of other ampere ratings which are not published. Temperature Re-rating Curve Note: Rerating depicted in this curve is in addition to the industry practice derating of 25% for continuous operation. © 2020 Littelfuse, Inc. Specifications are subject to change without notice. Revised: GD. 12/14/20 Axial Lead & Cartridge Fuses 3AG > Fast Acting > 312/318 Series Soldering Parameters - Wave Soldering Recommended Process Parameters: 300 280 Wave Parameter 240 Lead-Free Recommendation Preheat: 220 (Depends on Flux Activation Temperature) 200 (Typical Industry Recommendation) Temperature Minimum: 100°C 160 Temperature Maximum: 150°C 140 Preheat Time: 60-180 seconds 180 120 100 80 60 40 20 240 230 220 210 200 190 180 170 160 150 140 130 120 110 90 100 80 70 60 50 40 30 20 10 0 0 Temperature (°C) - Measured on bottom side of board 260 Solder Pot Temperature: 260°C Maximum Solder Dwell Time: 2-5 seconds 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. Time (Seconds) Cooling Time Preheat Time Dwell Time Product Characteristics Materials Terminal Strength Solderability Product Marking Body: Glass Cap: Nickel–plated brass Leads: Tin–plated Copper MIL-STD-202, Method 211, Test Condition A MIL-STD-202 method 208 Cap1: Brand logo, current and voltage ratings Cap2: Series and agency approval marks Dimensions Operating Temperature Thermal Shock Vibration –55ºC to +125ºC MIL-STD-202, Method 107, Test Condition B: (5 cycles -65°C to +125°C) MIL-STD-202, Method 201 MIL-STD-202, Method 103, Test Condition A: High RH (95%), and Elevated temperature (40°C) for 240 hours MIL-STD-202, Method 101, Test Condition B Humidity Salt Spray Part Numbering System Measurements displayed in millimeters (inches) 312 000 Series (cartridge) 0312 xxxx M X P 318 000 Series (axial leaded) 6.35±0.3 (.25") Series 6.985±0.3 (.275") 31.75±1.12 (1.25") 0.81±0.05(.032") for (0.062A-15A) 1.02±0.06(.040") for (20A-35A) Axial Lead Material: Tin-coated copper 32.72±1.12 (1.288") Axial Lead Length: Standard Length: 38.1±3.15(1.50") TYP. Short Lead Option: 12.7±2.0(.50") TYP. 312 = Cartridge 318 = Axial Leaded Amp Code Refer to Amp Code column of Electrical Characteristics Table Quantity Code M = 1000 Packaging Code X = Filler Lead-free © 2020 Littelfuse, Inc. Specifications are subject to change without notice. Revised: GD. 12/14/20 Axial Lead & Cartridge Fuses 3AG > Fast Acting > 312/318 Series Packaging Quantity & Packaging Code Packaging Option Packaging Specification Quantity Taping Width Bulk N/A 1000 MX N/A Bulk N/A 100 HX N/A Bulk N/A 1000 MX N/A Bulk N/A 100 HX N/A Bulk N/A 1000 MXB N/A 312 Series 318 Series Recommended Accessories Accessory Type Series 155100 Holder Block Clip Description Twist-Lock In-Line Fuseholder Max Application Voltage 32 Max Application Amperage 20 20 342 Traditional Panel Mount Fuseholder 250 346 Panel Mount Flip-Top Shock-Safe Fuseholder 250 15 345 Shock-Safe Fuseholder with PC Mount, Solder Mount and Panel Mount options 250 20 354 Low Profile OMNI-BLOK® Fuse Block 359 High Current Screw Terminal Fuse Block 122 High Current Traditional PC Board Fuse Clip 1000 30 101 Rivet/Eyelet Type Fuse Clip 1000 15 600 30 30 Notes: 1. Do not use in applications above rating. 2. Please refer to fuseholder data sheet for specific re-rating information. 3. Please contact factory for applications greater than the max voltage and amperage shown. Disclaimer Notice - Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and test each product selected for their own applications. Littelfuse products are not designed for, and may not be used in, all applications. Read complete Disclaimer Notice at: https://www.littelfuse.com/legal/disclaimers/product-disclaimer.aspx.. © 2020 Littelfuse, Inc. Specifications are subject to change without notice. Revised: GD. 12/14/20