Fuse Mounting Accessories Page 66 Fuse & Mounting Accessories

2017 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 03/03/17 Surface Mount Fuses NANO 2 > Slo-Blo Fuse > 452/454 Series Materials Body: Ceramic Terminations : Gold-plated Caps / Sn-dipped Silver Plated Caps (452 Series) Silver-plated Caps (454 Series) Product Marking Brand, Ampere Rating Operating Temperature -55C to 125C Moisture Sensitivity Level Level 1, J-STD-020 Solderability MIL-STD-202, Method 208 Insulation Resistance (after Opening) MIL-STD-202, Method 302, Test Condition A (10,000 ohms minimum) Thermal Shock MIL-STD-202, Method 107, Test Condition B, 5 cycles, -65C / +125C, 15 minutes @ each extreme Mechanical Shock MIL-STD-202, Method 213, Test I: Deenergized. 100G's pk amplitude, sawtooth wave 6ms duration, 3 cycles XYZ+xyz = 18 shocks Vibration MIL-STD-202, Method 201: 0.03" amplitude, 10-55 Hz in 1 min. 2hrs each XYZ=6hrs Moisture Resistance MIL-STD-202, Method 106, 10 cycles Salt Spray MIL-STD-202, Method 101, Test Condition B (48hrs) Resistance to Soldering Heat MIL-STD-202, Method 210, Test condition B (10 sec at 260C) Product Characteristics 1 A T 6.86 (.270") 3.15 (.124") 2.95 (.116") 1.96 (.077") 2.69 .25 (.106") 2.69 .25 (.106") 1.45 (.057") 6.10 .20 (.240") Recommended pad layout F Dimensions Packaging Part Numbering System Packaging Option Packaging Specification Quantity Quantity & Packaging Code 12mm Tape and Reel EIA RS-481-1 (IEC 286, part 3) 5000 NR 12mm Tape and Reel EIA RS-481-1 (IEC 286, part 3) 1000 MR 0452 001. M R L SERIES AMP Code QUANTITY Code PACKAGING Code M = 1000 pcs N = 5000 pcs R = Tape and Reel L - RoHS Compliant & Halogen Free (Gold Plated Caps) 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 .375 MRL (1 amp product shown) 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. SN-RoHS Compliant & Halogen Free (Sn-dipped Caps) 452 Series 454 Series 452 Series 454 Series 452 Series 454 Series 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 www.littelfuse.com/disclaimer-electronics. Additional Information Datasheet Samples Resources Datasheet Samples Resources

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