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Technical content

Features

% of Ampere Rating Opening Time 100% 4 hours, Minimum 0% 1 second, Maximum 300% 0.1 second, Maximum Electrical Specifications by Item Ampere Rating (A) Amp Code Max Voltage Rating (V) Interrupting Rating Nominal Cold Resistance (Ohms) Nominal Melting I2t (A2sec) Agency Approvals PS E 0.062 .062 125

50 A @125 VAC

300 A @125 VDC

7 .0000 0.000075 x x 0.125 .125 125 1 .7000 0.00163 x x 0.250 .250 125 0.6650 0.0106 x x 0.375 .375 125 0.3950 0.0254 x x 0.500 .500 125 0.2800 0.0546 x x 0.750 .750 125 0.1750 0.155 x x 1 .00 001 . 125 0.1250 0.281 x x x 1 .50 01 .5 125 0.0800 0.650 x x x 2.00 002. 125 0.0468 0.421 x x x 2.50 02.5 125 0.0350 0.721 x x x 3.00 003. 125 0.0290 1 .23 x x x 3.50 03.5 125 0.0240 1 .65 x x x 4.00 004. 125 0.0200 2.35 x x x 5.00 005. 125 0.0155 3.90 x x x The 459 Series Very Fast-Acting SMF is based on Littelfuse PICO® fuse technology, though offered in a surface mount package. This series of devices meets the requirements of the RoHS directive.

Applications

t7FSZ'BTU"DUJOH t 8JEFDVSSFOUSBUJOHSBOHFN"UP" t8JEFPQFSBUJOHUFNQFSBUVSFSBOHF t-PXUFNQFSBUVSFSFSBUJOH t3P)4DPNQMJBOU t 8JSFMFTTCBTFTUBUJPO t /FUXPSLFRVJQNFOU t 5FMFDPNFRVJQNFOU Revised: April 24, 2012 PS E Agency Approvals AGENCY AGENCY FILE NUMBER AMPERE RANGE E10480 62mA - 5A LR29862 62mA - 5A PS E NBK030205-E10480B 1A - 5A

Introduction to Circuit ProtectionIntroduction to Circuit Protection Transientology © 2012 Littelfuse, Inc. Specifications are subject to change without notice. Surface Mount Fuses

459 Series

PICO® SMF Fuse > 459 Series Please refer to www.littelfuse.com/series/459.html for current information. Materials Body: Molded Thermoplastic T erminations: 100% Tin-plated Copper (459 Series) Solderability MIL -STD-202, Method 208 Product Marking Body: Brand Logo, Current Rating, Voltage Rating, Series Code, Date Code, Agency Approved Logo Moisture Sensitivity Level Level 1 J-STD - 020C Operating Temperature –55 OC to 125OC Product Characteristics Shock MIL -STD-202, Method 213, Test Condition I (100 G’s peak for 6 msecs.) Vibration MIL -STD-202, Method 201 (10–55 Hz, 0.06 inch total excursion) Salt Spray MIL -STD-202, Method 101, Test Condition B (48 hours) Insulation Resistance (After Opening) MIL -STD-202, Method 302, (10,000 ohms minimum at 100 volts) Thermal Shock MIL -STD-202, Method 107 , Test Condition B (–65 to 125°C) Moisture Resistance MIL -STD-202, Method 106, High Humidity (90-98 RH), Heat (65°C) Average Time Current Curves 100 0.1 0.01 0.001 .062A 0.05 0.1 1 10 100 .125A .25A .375A .500A .750A 1.5A 2.5A 3.5A TIME IN SECONDS CURRENT IN AMPERES Soldering Parameters T emperature Rerating Curve /PUF 1 . Rerating depicted in this curve is in addition to the standard rerating of 25% for continuous operation. Wave Soldering 260°C, 10 seconds max. Reflow Soldering 260°C, 30 seconds max.

© 2012 Littelfuse, Inc. Specifications are subject to change without notice. Surface Mount Fuses PICO® SMF Fuse > 459 Series Please refer to www.littelfuse.com/series/459.html for current information. 4.32 (.170")

5 A 1 2 5 V

B 3® ® 3.05 (.120") 2.97 (.117") 7.24(.285") REF. 8.26 (.325") 1.65 (.065") 4.95 (.195") 1.30(.051") REF. 2.03 (.080") RECOMMENDED PAD LAYOUT Dimensions Packaging Part Numbering System Packaging Option Packaging Specification Quantity Quantity & Packaging Code 12mm T ape and Reel EIA RS-481-1 (IEC 286, part 3) 500 UR 12mm Tape and Reel EIA RS-481-1 (IEC 286, part 3) 2500 ER 0459 .500 UR SERIES AMP Code QUANTITY Code PACKAGING Code Refer to Electrical Characteristics table UR = 500 pcs ER = 2500 pcs R = Tape and Reel Example:

0.62 Amp product is

0459 .062 UR (.5 Amp QSPEVDUTIPXOBCPWF