Fuse Mounting Accessories Page 63 Fuse & Mounting Accessories

2017 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 03/03/17 Surface Mount Fuses NANO 2 > Very Fast-Acting Fuse > 451/453 Series Materials Body: Ceramic Terminations : Gold-Plated Caps / Sn-dipped Silver Plated Caps (451 RoHS/HF series) SnPb Plated Caps (for 451 Non-RoHS series, 375mA-15A) Silver-plated Caps (451MR RoHS ratings below 375mA and 453 RoHS 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 Dimensions Packaging Part Numbering System 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 7 A Packaging Option Packaging Specification Quantity Quantity & Packaging Code 12mm Tape and Reel EIA RS-481-2 (IEC 286, part 3) 5000 NR 12mm Tape and Reel EIA RS-481-2 (IEC 286, part 3) 1000 MR 0451 001. M R L SERIES AMP Code QUANTITY Code PACKAGING Code Refer to Electrical characteristics table M = 1000 pcs N = 5000 pcs R = Tape and Reel L-RoHS Compliant & Halogen Free (Gold Plated Caps) 451 = Gold / SnPb / Silver Plated Caps 453 = Silver Plated Caps NOTE: "L " suffix applies to 451 series only - 451 series may be ordered as either "RoHS and HF" ("L " suffix) or non-RoHS (no suffix) version. - 453 series is available only as RoHS compliant version and does not require "L " suffix. Please do not include "L " suffix within 453 series ordering instructions. SN-RoHS Compliant & Halogen Free (Sn-dipped Caps) 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.

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