0452003.MR

Surface Mount Fuses NANO2® > Slo-Blo® Fuse > 452/454 Series 452/454 Series Fuse RoHS PS E Description The NANO2® Slo-Blo® fuse has enhanced inrush withstand characteristics over the NANO2® Fast-Acting fuse. The unique time delay feature of this fuse design helps solve the problem of nuisance “opening” by accommodating inrush currents that normally cause a fast-acting fuse to open. Features Agency Approvals Agency PS E Agency File Number Ampere Range E10480 0.375A - 12A 29862 0.375A - 12A NBK030205-E10480B 1A - 5A Electrical Characteristics for Series % of Ampere Rating Opening Time 100% 4 hours, Minimum 200% 1 sec., Min.; 60 sec., Max. 300% 0.2 sec., Min.; 3 sec., Max 800% 0.002 sec., Min.; 0.1 sec., Max. • Small size • Wide range of current rating available (0.375A to 12A) • Wide operating temperature range • RoHS compliant and Halogen Free • UL Recognized to UL/ CSA/NMX UL 248-1 and UL/CSA/NMX UL 248-14 • Conforms to DENAN’s Appendix 3 Applications • Notebook PC • LCD/PDP TV • LCD monitor • LCD/PDP panel • LCD backlight inverter • Portable DVD player • Power supply • Networking • PC server • Cooling fan system • Storage system • Telecom system • Wireless basestation • White goods • Game console • Office Automation equipment • Battery charging circuit protection • Industrial equipment Electrical Specifications by Item Ampere Rating (A) Amp Code Max Voltage Rating (V) Interrupting Rating Agency Approvals Nominal Cold Nominal Melting Resistance (Ohms) I2t (A2sec) PS E 0.375 .375 125 1.2000 0.101 x x 0.500 .500 125 0.7000 0.240 x x 0.750 .750 125 0.3600 0.904 x x 001. 001. 125 0.2250 1.98 x x x 1.50 01.5 125 0.0930 3.65 x x x 2.00 002. 125 0.0625 8.20 x x x 2.50 02.5 125 0.0450 15.0 x x x 3.00 003. 125 0.0340 20.16 x x x 3.50 03.5 125 0.0224 26.53 x x x 4.00 004. 125 0.0186 34.40 x x x 5.00 005. 125 0.0136 53.72 x x x 7.00 007. 75 0.0105 123.83 x x 8 008. 75 0.0088 137.34 x x 12 012. 75 0.0061 260.46 x x 50A @ 125 VAC/VDC 300A @ 32 VDC PSE: 100A @ 100 VAC 50A @ 72 VAC 50A @ 60 VDC 100A @ 75 VDC Notes: - l2t calculated at 8ms. - Resistance is measured at 10% of rated current, 25ºC © 2019 Littelfuse, Inc. Specifications are subject to change without notice. Specifications are subject to change without notice. Application testing is strongly recommended. Revised: 11/21/19 Surface Mount Fuses NANO2® > Slo-Blo® Fuse > 452/454 Series Temperature Re-rating Curve Average Time Current Curves 12.0A 8.00A 7.00A 5.00A 4.00A 3.50A 3.00A 2.50A 2.00A 1.50A 1.00A 750mA 500mA 375mA TIME IN SECONDS 100 10 1 Note: 1. Rerating depicted in this curve is in addition to the standard derating of 25% for continuous operation. 0.1 0.01 0.1 1 10 100 1000 CURRENT IN AMPS Soldering Parameters Pb – Free assembly Pre Heat - Temperature Min (Ts(min)) 150°C - Temperature Max (Ts(max)) 200°C - Time (Min to Max) (ts) 60 – 180 secs Average ramp up rate (Liquidus Temp (TL) to peak 5°C/second max. TS(max) to TL - Ramp-up Rate Reflow 5°C/second max. - Temperature (TL) (Liquidus) 217°C - Temperature (tL) 60 – 150 seconds Peak Temperature (TP) 260+0/–5 °C Time within 5°C of actual peak Temperature (tp) 20 – 40 seconds Ramp-down Rate 5°C/second max. Time 25°C to peak Temperature (TP) 8 minutes max. Do not exceed 260°C Wave Soldering Parameters tP TP Critical Zone TL to TP Ramp-up TL TS(max) Temperature Reflow Condition tL Ramp-down TS(min) 25 Preheat tS time to peak temperature (t 25ºC to peak) Time 260°C Peak Temperature, 3 seconds max. © 2019 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 11/21/19 Surface Mount Fuses NANO2® > Slo-Blo® Fuse > 452/454 Series Product Characteristics Product Marking Body: Ceramic Terminations: Gold-plated Caps / Sn-dipped Silver Plated Caps (452 Series) Silver-plated Caps (454 Series) Brand, Ampere Rating Operating Temperature -55°C to 125°C Moisture Sensitivity Level Level 1, J-STD-020 Vibration Solderability Insulation Resistance (after Opening) MIL-STD-202, Method 208 MIL-STD-202, Method 302, Test Condition A (10,000 ohms minimum) Moisture Resistance Materials Thermal Shock Mechanical Shock Salt Spray Resistance to Soldering Heat MIL-STD-202, Method 107, Test Condition B, 5 cycles, -65°C / +125°C, 15 minutes @ each extreme MIL-STD-202, Method 213, Test I: Deenergized. 100G’s pk amplitude, sawtooth wave 6ms duration, 3 cycles XYZ+xyz = 18 shocks MIL-STD-202, Method 201: 0.03” amplitude, 10-55 Hz in 1 min. 2hrs each XYZ=6hrs MIL-STD-202, Method 106, 10 cycles MIL-STD-202, Method 101, Test Condition B (48hrs) MIL-STD-202, Method 210, Test condition B (10 sec at 260°C) Part Numbering System Dimensions 0452 2.69 ± .25 (.106") 6.10 ± .20 (.240") T F 2.69 ± .25 (.106") 1A 1.45 (.057") Series Amp Code Refer to Amp Code column in the Electrical Specifications table. The dot is positioned at the end of the number sequence with whole ratings and within for fractional ratings. Example: 0.375 Amp product is 0452.375MRL (1 amp product shown) 6.86 (.270") Quantity code 3.15 (.124") Packaging code M = 1000 pcs N = 5000 pcs R = Tape and Reel L - RoHS Compliant & Halogen Free (Gold Plated Caps) SN-RoHS Compliant & Halogen Free (Sn-dipped Caps) 2.95 (.116") 1.96 (.077") Recommended pad layout Notes: 452 series may be ordered as “RoHS and HF (Gold Plated Caps)” (“L” suffix). 454 series is available only as “RoHS and HF” version and does not require “L” suffix. Please do not include “L” suffix within 454 series ordering instructions. Additional Information Packaging Packaging Option 12mm Tape and Reel 12mm Tape and Reel 001. M R L Packaging Specification EIA RS-481-1 (IEC 286, part 3) EIA RS-481-1 (IEC 286, part 3) Quantity Quantity & Packaging Code 5000 NR 1000 MR Datasheet 452 Series Resources 452 Series Samples 452 Series Datasheet 454 Series Resources 454 Series Samples 454 Series 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. © 2019 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 11/21/19