Axial Lead & Cartridge Fuses 3AB > Fast-Acting > 314/324 Series 314/324 Series Lead-free 3AB, Fast-Acting Fuse RoHS Pb PS E Description The 3AB Fast-Acting 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 • UL Listed and Standard 248-14 Recognized to UL/CSA/ NMX 248-1 and UL/CSA/ • Available in cartridge NMX 248-14 and axial lead format and with various forming • Conforms to DENAN’s dimensions Appendix 3 • RoHS compliant and • Conforms to EN 60127-1 Lead-free and EN 60127-7 (15A, 20A only) Agency Approvals Applications Used as supplementary protection in appliance or Agency Agency File Number Ampere Range utilization equipment to provide individual protection for components or internal circuits. E10480 0.375A - 15A 29862 0.375A - 20A Electrical Characteristics for Series E10480 20A - 40A 314 Series: 1A - 3.5A % of Ampere Rating Ampere Rating Opening Time NBK030805-E10480A 4A - 5A NBK030805-E10480C 6A - 15A 100% 0.375 - 40 4 hours, Minimum NBK030805-E10480E 20A - 30A 135% 0.375 - 30 1 hour, Maximum NBK260106-JP1021A PS E 324 Series: 0.375 - 12 15 secs., Maximum 1A - 3.5A 200% NBK030805-E10480B 4A - 5A 15 - 30 30 secs., Maximum NBK030805-E10480D 6A - 15A 250% 40 30 secs., Maximum NBK030805-E10480F 20A - 30A NBK260106-JP1021B SU05001-6003 3A SU05001-6001 4-6A SU05001-7006 7-10A Additional Information SU05001-8002 12-15A SU05001-8003 20A SU05001-6002 25-30A N/A 0.375A - 30A J 50440217 *15A/*20A Datasheet Resources Samples Accessories * - Approved for axial leaded version only. 314 Series 314 Series 314 Series 314 & 324 Series Datasheet Resources Samples 324 Series 324 Series 324 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. 10/21/20

Axial Lead & Cartridge Fuses 3AB > Fast-Acting > 314/324 Series Electrical Specification by Item Agency Approvals Ampere Voltage Nominal Cold Interrupting Nominal Melting Amp Code Rating Rating Resistance Rating+ I2t (A2 sec)*** PS (A) (V) (Ohms) E .375 0.375 250 35 A @ 250 VAC 0.820 0.210 x x - - - x - .500 0.5 250 10 kA @ 125 VAC 0.500 0.639 x x - - - x - .750 0.75 250 10 kA @ 125 VDC 0.250 2.061 x x - - - x - 001. 1 250 100 A @ 250 VAC 0.189 0.690 x x - - x x - 002. 2 250 10 kA @ 125 VAC 0.0700 5.700 x x - - x x - 003. 3 250 10 kA @ 125 VDC 0.0432 14.6 x x x - x x - 004. 4 250 0.0470 10.4 x x x - x x - 005. 5 250 0.0300 26.0 x x x - x x - 006. 6 250 0.0240 45.0 x x x - x x - 007. 7 250 0.0187 71.0 x x x - x x - 750 A @ 250 VAC 008. 8 250 0.0153 105 x x x - x x - 10 kA @ 125 VAC 010. 10 250 0.0105 206 x x x - x x - 10 kA @ 125 VDC 010.* 10 280 0.0105 206 - - - x - x - 012. 12 250 0.00760 570 x x x - x x - 015. 15 250 0.00505 292 x x x - x x x**** 015.* 15 280 0.00505 292 - x x - 020. 20 250 1000 A @ 250 VAC 0.00355 631 - x x x x x x**** 200 A @ 300 VAC 020.* 20 280 10 kA @ 125 VAC 0.00355 631 - - - x - x - 10 kA @ 125 VDC 025. 25 250 100 A @ 250 VAC 0.00235 1450 - - x x x x - 025.** 25 280 1000 A @ 75 VDC 0.00235 1450 - - - x - x - 400 A @ 125 VAC 030. 30 250 0.00182 2490 - - x x x x - 400 A @ 125 VDC 1000 A @ 250 VAC 040. 40 250 0.0014 22925 - - - x - x - 400 A @ 150 VDC * 350A@280VAC interrupting rating available for 10A, 15A and 20A. ** 50A@280VAC for 25A. Add suffix ’280’. Example: 0324020.MX280P. ***I2t test at 10x rated current ****Approved for axial leaded versions only, and interrupting rating is 750A@250Vac for 15A,1000A@250Vac for 20A + - Interrupting Rating may differ based on Agency Approval. See Agency Approval certificate for more details. Temperature Re-rating Curve Average Time Current Curves AAA .375.500.7501A 2A3A4A5A6A7A8A10A12A15A20A25A30A40A 1000 100 S D N 10 O C E S N E I M TI 1 0.1 Note: Rerating depicted in this curve is in addition to the standard derating of 25% for continuous operation. 0.01 0.1 1 10 100 1000 CURRENT IN AMPERES © 2020 Littelfuse, Inc. Specifications are subject to change without notice. Revised: GD. 10/21/20

Axial Lead & Cartridge Fuses 3AB > Fast-Acting > 314/324 Series Soldering Parameters - Wave Soldering 300 Recommended Process Parameters: 280 260 Measured on bottom side of board 111112220246802400000000 P( S D ro eTTePlpeehdremmeeenhardpp tePsee:a orrotaatn WT ttT Fuuiemalrrumveexee p MMA: ePciaratnaixrvitaimaummtiruoueemn:mt Te:e:rmperature) (1162T0506yp00-0L1i°°°ce8CCCaa0l IMd ns-deaFucxrseoitmreny du RRsmeeccoommmmenednadtioant)ion mperature (°C) - 24680000 ReSScooolmdldemre eIrrno ndD eTdewm Hepaelnrlad Tt-uSirmoe:l d3ee5:r0 °PCa +ra/-m 5e°tCe rs: 2-5 seconds Te 0 Heating Time: 5 seconds max. 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210 220 230 240 Note: These devices are not recommended for IR or Convection Reflow process. Time (Seconds) Preheat Time Cooling Time Dwell Time Product Characteristics Body: Ceramic Operating Temperature –55ºC to +125ºC Materials Cap: Nickel–plated Brass MIL-STD-202, Method 107, Test Condition B (5 Leads: Tin–plated Copper Thermal Shock cycles, -65°C to +125°C) Terminal Strength MIL-STD-202, Method 211, Test Condition A Vibration MIL-STD-202, Method 201 Solderability MIL-STD-202 Method 208 MIL-STD-202, Method 103, Test Condition Cap1: Brand logo, current and voltage ratings Humidity A (High RH (95%) and Elevated temperature Product Marking Cap2: Series and agency approval marks (40°C) for 240 hours) Salt Spray MIL- STD-202, Method 101, Test Condition B Dimensions Part Numbering System 0314 xxxx M X P 314 000P Series 324 000P Series (cartridge) (axial leaded) Series 314 = Cartridge 6.35±0.3 6.985±0.3 324 = Axial Leaded (.25") (.275") Amp Code 31.75±1.12 32.72±1.12 Refer to Amp Code column of (1.25") (1.288") Electrical Specification Table Axial Lead Diameter: Axial Lead Length: Quantity Code 0.81±0.05 (.032") for 38.1±3.15 (1.50") TYP. M = 1000 (0.375A - 15A) 52±3 (2.0") for Long Lead Packaging Code 1.02±0.06 (.040") for (20A - 40A) Axial Lead Material: X = Filler Tin-coated copper Lead-free Measurements displayed in millimeters (inches) © 2020 Littelfuse, Inc. Specifications are subject to change without notice. Revised: GD. 10/21/20

Axial Lead & Cartridge Fuses 3AB > Fast-Acting > 314/324 Series Packaging Quantity & Packaging Option Packaging Specification Quantity Taping Width Packaging Code 314 Series Bulk N/A 5 VX N/A Bulk N/A 100 HX N/A Bulk N/A 1000 MX N/A Bulk N/A 1000 MX52L (long lead) N/A Bulk N/A 1000 MXCC N/A Bulk N/A 1000 MX52LE (long lead) N/A 324 Series Bulk N/A 5 VX N/A Bulk N/A 100 HX N/A Bulk N/A 1000 MX N/A Bulk N/A 1000 MX280 N/A Bulk N/A 1000 MX52L N/A Bulk N/A 1000 MXF24 N/A Recommended Accessories Accessory Max Application Max Application Series Description Type Voltage Amperage 155100 Twist-Lock In-Line Fuseholder 32 20 342 Traditional Panel Mount Fuseholder 250 20 Holder 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 30 Block 600 359 High Current Screw Terminal Fuse Block 30 122 High Current Traditional PC Board Fuse Clip 1000 30 Clip 101 Rivet/Eyelet Type Fuse Clip 1000 15 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. 10/21/20