Axial Lead & Cartridge Fuses 5×20 mm > Time-Lag > 477 Series 477 Series, 5×20 mm, Time-Lag Fuse RoHS Pb PS E Description 400Vdc/500Vac rated, 5x20mm, time-lag, surge withstand ceramic body cartridge fuse. Features • Designed to International • Available in cartridge and (IEC) Standard for use axial lead form globally. • RoHS compliant and • Follow the IEC 60127-2, lead-free Sheet 5 specification for time-lag fuses Agency Approvals Applications Agency Agency File Number Ampere Range High energy and power efficient applications. Cartridge: NBK040609-JP1021A 1A – 5A NBK040609-JP1021C 6.3A – 12A Electrical Characteristics for Series NBK100408-JP1021A 16A PES Leaded: NBK040609-JP1021B 1A – 5A % of Ampere Ampere Rating Opening Time NBK040609-JP1021D 6.3A – 12A Rating NBK100408-JP1021B 16A .5 - .8 60 minutes, Minimum 1 - 3.15 60 minutes, Minimum 1620077 0.500A – 8A 150% 4 - 6.3 60 minutes, Minimum E10480 0.500A - 16A 8 - 16 30 minutes, Minimum 40025413 1A, 3.15A .5 - .8 30 minutes, Maximum J50248089 10A, 12A, 16A 210% 1 - 3.15 30 minutes, Maximum 4 - 6.3 30 minutes, Maximum N/A 0.500A – 16A 8 - 16 30 minutes, Maximum .5 - .8 .25 sec., Min.; 80 sec. Max. 1 - 3.15 .75 sec., Min.; 80 sec. Max. Additional Information 275% 4 - 6.3 .75 sec., Min.; 80 sec. Max. 8 - 16 .75 sec., Min.; 80 sec. Max. .5 - .8 .05 sec., Min.; 5 sec. Max. 1 - 3.15 .095 sec., Min.; 5 sec. Max. 400% 4 - 6.3 .15 sec., Min.; 5 sec. Max. 8 - 16 .15 sec., Min.; 5 sec. Max. Datasheet Resources Samples .5 - .8 .005 sec., Min.; .15 sec. Max. 1 - 3.15 .01 sec., Min.; .15 sec. Max. 1000% 4 - 6.3 .01 sec., Min.; .15 sec. Max. 8 - 16 .01 sec., Min.; .15 sec. Max. © 2020 Littelfuse, Inc. Specifications are subject to change without notice. Revised: BA.09/16/20

Axial Lead & Cartridge Fuses 5×20 mm > Time-Lag > 477 Series Electrical Characteristic Max Voltage Nominal Cold Nominal Agency Approvals Amp Amp Rating (V) Interrupting Rating Resistance Melting Code Rating PS AC DC (Milli-ohms) I2t (A2 sec.)† E .500 0.5 500 400 1055.900 0.300 - x* x** - - .800 0.8 500 400 430.000 0.909 - x* x** - - 100A@500VAC 001. 1 500 400 139.400 1.800 x x* x** - x 1500A@400VDC 002. 2 500 400 55.200 9.120 x x* x** - - 3.15 3.15 500 400 27.700 50.109 x x* x** - x 004. 4 500 400 17.200 52.480 x x* x** - - 005. 5 500 400 13.700 76.500 x x* x** - - 06.3 6.3 500 400 100A@500VAC 10.970 121.451 x x x** - - 008. 8 500 400 500A@400VDC 8.305 203.520 x x x** - - 010. 10 500 400 4.950 509.000 x x - x - 012. 12 500 400 4.730 576.000 x x - x - 100A@500VAC 016. 16 500 400 3.100 1331.200 x x - x*** - 400A@400VDC *100A @ 600Vac also available. Add suffix "MXE6P". Example: 0477004.MXE6P. **Semko approval for 100A@500Vac and 200A@400Vdc. ***100A@ 500Vac and 300A@400Vdc for 16A †I2t test at 10x rated current. Temperature Re-rating Curve Average Time Current Curves 0.500A 0.800A1A 2A 3.15A4A5A6.3A8A 10A12A16A © 2020 Littelfuse, Inc. Specifications are subject to change without notice. Revised: BA.09/16/20

Axial Lead & Cartridge Fuses 5×20 mm > Time-Lag > 477 Series Soldering Parameters - Wave Soldering Recommended Process Parameters: 300 C) - Measured on bottom side of board 11111222228024680246800000000000 ( SPD ro eeTTPlpdeehreemmeenrhad pptPes:eeo aorrWttaan TTtt aFuueimvlrrmueeexe p MMPA:ecariatrnaixvatiamiummtrioueeunm:tm Tee::rmperature) (LTeypaidca-lF 2Ir6n6ed00eu-1° sRC8t11re0 y05Mc R00soae°°emCCxccoiommmnumedmnsedndaattiioonn) mperature (° 246000 RSoeSlcdooerml dIrmeoner n TDdemewdp eeHralaltn Tudrie-mS: 3oe5ld0:°eCr P+/a-r 5a°mCe ters: 2-5 seconds Te 00 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210 220 230 240 HNeoattein: gT hTeimsee :d 5e vsiececos nadrse mnoatx r.ecommended 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, –65ºC to +125ºC) 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 A Cap 1: Brand logo, current and voltage ratings Humidity (High RH (95%) and elevated temp (40ºC) for Product Marking Cap 2: Series and agency approval markings 240 hours) Packaging Available in Bulk (M=1000 pcs/pkg) Salt Spray MIL-STD-202, Method 101, Test Condition B Dimensions Part Numbering System 0477 xxxx M X E P 0477000XP Series Amp Code 0477.500XEP Refer to Amp Code Column of to 40±1.0 21.5±1.0 5.6±0.4 Electral Characteristics Table 0477.800XEP Quantity Code 0.65±0.05* M = 1000 Packing Code 04770t0o1.XEP 40±1.0 21.5±1.0 5.5±0.3 X = Filler 0477016.XEP Option Code E: Axial Lead 0.65±0.05* Others: Special Options All dimensions in mm Please Call Littelfuse for detail. Notes: * Ratings above 5A 1.0±0.05 diameter lead. Lead-Free Packaging Quantity & Packaging Option Packaging Specification Quantity Reel Size Packaging Code 477 Series Bulk N/A 1000 MX N/A Bulk N/A 1000 MXE N/A Reel and Tape N/A 1000 MRET1 T1=53mm (2.087”) Disclaimer Notice - Littelfuse products are not designed for, and shall not be used for, any purpose (including, without limitation, automotive, military, aerospace, medical, life-saving, life-sustaining or nuclear facility applications, devices intended for surgical implant into the body, or any other application in which the failure or lack of desired operation of the product may result in personal injury, death, or property damage) other than those expressly set forth in applicable Littelfuse product documentation. Warranties granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in applications not expressly intended by Littelfuse as set forth in applicable Littelfuse documentation. The sale and use of Littelfuse products is subject to Littelfuse Terms and Conditions of Sale, unless otherwise agreed by Littelfuse. 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 www.littelfuse.com/disclaimer-electronics. © 2020 Littelfuse, Inc. Specifications are subject to change without notice. Revised: BA.09/16/20