Surface Mount Fuses NANO2® > 458 Series 1206 Size Inrush Withstand Fuse 458 Series Fuse RoHS Description The 458 Series Nano2® Fuse is an ultra-small, square surface mount fuse designed to support a variety of space constrained overcurrent protection applications. Offering a 1206 size footprint, it is the smallest wire-in-air type surface mount fuse offered by Littelfuse. Features • Surface Mount Fuse • Available in ratings of • Fully compatible with 1 to 10 Amperes lead free soldering • Recognized to UL/CSA/ profiles NMX 248-1 and UL/CSA/ • RoHS Compliant and NMX 248-14 Halogen-Free Agency Approvals Applications Agency Agency File Number Ampere Range • Notebook PC • Car Navigation System • LCD backlight inverter • Network Equipment E10480 1A–10A • LCD Panel • Telecom Equipment • DC/DC converter • Electronic Signage • Battery Pack • Portable Consumer Electronics Electrical Characteristics for Series Additional Information % of Ampere Rating Opening Time 100% 4 hours, Minimum 250% 5 seconds, Maximum Datasheet Resources Samples Electrical Specifications by Item Max Agency Approvals Ampere Rating Interrupting Nominal Cold Nominal Melting Amp Code Marking Voltage (A) Rating Resistance (Ohms) I2t (A2sec) Rating (V) 1.0 001. 1 0.180 .168 x 1.25 1.25 1.25 0.125 .313 x 1.5 01.5 1.5 0.099 .548 x 1.6 01.6 1.6 0.092 .562 x 50A @ 75VDC 2 002. 2 0.0695 .952 x 50A @ 48VAC 2.5 02.5 2.5 0.06 1.408 x 75V 3 003. 3 0.049 2.289 x 3.15 3.15 3.15 0.045 2.457 x 3.5 03.5 3.5 0.0375 4.00 x 4 004. 4 0.032 4.832 x 50A @ 75VDC 5 005. 5 0.027 7.938 x 50A @ 32VAC 6.3 06.3 6.3 0.0192 14.37 x 7 007. 7 0.0175 20.48 x 50A @ 63VDC 8 008. 8 63V 0.0058 13.448 x 50A @ 32VAC 10.0 010. 10 0.00465 15.0 x Notes: 1. l2t values stated for 8 msec opening time 2. Cold resistance measured at less than 10% of rated current at 25°C. 3. Agency Approval Table Key: X=Approved or Certified, P=Pending and Blank=Not Approved 4. Have special electrical characteristic needs? Contact Littelfuse to learn more about application specific options. © 2020 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 03/03/20

Surface Mount Fuses NANO2® > 458 Series 1206 Size Inrush Withstand Fuse Temperature Re-rating Curve Average Time Current Curves 140 1.00A1.25A1.50A1.60A2.00A2.50A3.00A3.15A3.50A4.00A5.00A6.30A7.00A8.00A10.00A 120 100 g atin 100 R nt of 80 e erc 60 10 P 40 20 S -60(cid:31)C -40(cid:31)C -20(cid:31)C 0(cid:31)C 20(cid:31)C 40(cid:31)C 60(cid:31)C 80(cid:31)C 100(cid:31)C '120(cid:31)C D -76(cid:31)F -40(cid:31)F -4!F -32(cid:31)F 68(cid:31)F 104(cid:31)F 140(cid:31)F 176(cid:31)F 212(cid:31)F 248(cid:31)F N O 1 C Ambient Temperature E S N E I Note: M 1. Rerating depicted in this curve is in addition to the standard rerating of 25% for continuous operation. TI 0.1 0.01 0.001 0.1 1 10 100 1000 CURRENT IN AMPS Soldering Parameters Reflow Condition Pb – Free assembly t P - Temperature Min (T ) 150°C T s(min) P Critical Zone Pre Heat - Temperature Max (Ts(max)) 200°C Ramp-up TL to TP - Time (Min to Max) (t) 60 – 180 secs T s L t Average ramp up rate (Liquidus Temp (TL) to peak 5°C/second max eruTS(max) L T to T - Ramp-up Rate 5°C/second max ta S(max) L r Ramp-down e - Temperature (T) (Liquidus) 217°C p Preheat Reflow L mTS(min) - Temperature (tL) 60 – 150 seconds eT tS Peak Temperature (T) 260+0/-5 °C P Time within 5°C of actual peak Temperature (t) 20 – 40 seconds 25 p time to peak temperature Ramp-down Rate 5°C/second max (t 25ºC to peak) Time Time 25°C to peak Temperature (T) 8 minutes Max. P Do not exceed 260°C © 2020 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 03/03/20

Surface Mount Fuses NANO2® > 458 Series 1206 Size Inrush Withstand Fuse Product Characteristics Body: Ceramic Operating Temperature –55OC to 125OC with proper derating Materials Cap: Gold Plated Brass MIL-STD-202, Method 107, Thermal Shock Test Condition B (5 cycles -65oC to +125oC) Body: Current Rating Product Marking (Refer to Electrical Characteristic table) Vibration MIL-STD-202, Method 201(10-55 Hz) MIL-STD-202, Method 106, High Humidity (90- Insulation Resistance MIL-STD-202, Method 302, Moisture Resistance 98%RH), Heat (65oC) (after Opening) Test Condition A (10,000 ohms, Minimum) Salt Spray MIL-STD-202, Method 101, Test Condition B Solderability MIL-STD-202, Method 208 MIL-STD-202, Method 213, Test Condition I (100 Shock Resistance to MIL-STD-202, Method 210, G’s peak for 6 milliseconds) Soldering Heat Test Condition B (10 sec at 260oC) Moisture Sensitivity Level 1 J-STD-020 Level Dimensions Part Numbering System 3.175 (.125”) 1.575 0458 001. D R (.062”) Series 1.575 (.062”) AMP Code Refer to Electrical charac- 0.813 teristics table (.032”) Quantity Code 3.65 D: 1500 pcs (.143”) Packaging Code R: Tape and Reel 2.05 (.081”) Example: 1.5 amp product is 0458 D R (1 amp product shown above). 1.185 1.28 (.047”) (.050”) Recommended Pad Layout Packaging Quantity & Packaging Option Packaging Specification Quantity Packaging Code 8mm Tape and Reel EIA-RS 481-1 1500 DR 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: 03/03/20