Special Application Fuses PICO® 259-UL913 Series Intrinsically Safe Fuse for Hazardous Locations PICO® 259-UL913 Series Intrinsically Safe Fuse RoHS Description The 259-UL913 Series offers a range of encapsulated fuses certified under the UL 913, the standard for intrinsically safe electrical equipment, to operate in hazardous locations. Ideal for use in the oil, gas, mine, chemical process, and pharmaceutical industries, the 259-UL913 fuse was designed to limit the energy and temperature generated during its operation. In addition to UL913, these fuses meet ATEX and IECEx requirements. The fuse design and its encapsulant are suitable for use in intrinsically safe appartatus and associated apparatus for voltage not exceeding 125V rms (190V peak). Features • Encapsulated and sealed (1mm minimum) Agency Approvals Agency Agency File Number Ampere Range Baseefa02ATEX0071U 0.62A - 5A E10480 E358130 0.62A - 5A IECEx BAS 10.0098U 0.62A - 5A Electrical Characteristics for Series • Global hazardous location certifications • 0.62A - 5A range options • Designed to operate within hazardous environments Applications • Testing, measuring or processing electronic and electrical equipment Reference Standards % of Ampere Rating Opening Time 100% 4 Hours, Minimum 200% 5 Seconds, Maximum Agency Standards ATEX EN 60079-0, EN 60079-11 IECEx IEC 60079-0, IEC 60079-11 Electrical Specifications by Items Ampere Rating (A) Amp Code 0.062 .062 Interrupting Rating Nominal Melting I2t (A2 Sec.) 0.00011 Minimum Cold Minimum Cold Resistance at Resistance at -20°C (Ohms) -40°C (Ohms) 4.89 4.39 Agency Approvals Nominal Cold Resistance at 25°C (Ohms) 7.00 x x x 0.125 .125 0.0012 1.35 1.26 1.70 x x x 0.250 .250 0.0095 0.51 0.48 0.67 x x x 0.375 .375 50A @ 125 VAC 0.025 0.32 0.29 0.395 x x x 0.500 .500 300A @ 125 VDC 0.0598 0.24 0.22 0.302 x x x 0.750 .750 0.153 0.14 0.12 0.175 x x x 1.00 001. 0.256 0.10 0.07 0.128 x x x 3.00 003. 1.27 0.03 0.01 0.03 x x x 5.00 005. 4.14 0.01 0.005 0.0158 x x x 50A @ 125 VAC 300A @ 63 VDC Schedule of limitations: 1) The fuse must be mounted in such a way that creepage and clearance distances aren’t impaired in any way. Additional Information 2) The fuse is suitable for use in intrinsically safe equipment for voltages not exceeding 190V peak. 3) Maximum surface temperature rise at 170% rated current: ≤750mA=40ºC, 1A=55ºC, 3A=118ºC and 5A=135ºC. Datasheet © 2016 Littelfuse, Inc. Specifications are subject to change without notice. Application testing is strongly recommended. Revised: 01/06/16 Resources Samples Special Application Fuses PICO® 259-UL913 Series Intrinsically Safe Fuse for Hazardous Locations 259 Series 1A - 40ºC to +73ºC 3A - 40ºC to +74ºC 5A - 40ºC to +45ºC Notes: 1. Any use of the 259-UL913 Series fuse outside of the ambient temperature ranges specified in the table is subject to additional investigation. 2. Specified ambient temperature range is for intrinsic safety certification. Materials Body : Polyamide Terminals - Tin Plated Copper Alloy Maximum operating temperature of Materials is 130°C Operating Temperature For operating temperature see table above (Consider re-rating) Thermal Shock Withstands 5 cycles of – 55°C to 125°C Vibration Per MIL-STD-202, Method 201 Insulation Resistance (After Opening) Greater than 10,000 ohms (at 250V DC) Temperature Re-rating Curve 100 5A - 40ºC to +81ºC 3.15 A ≤ 0.750 A 10 TIME IN SECONDS Ambient Temperature .062 A Operating Temperature Current Rating .250 A .375 A .500 A .750 A 1A Average Time Current Curves .125 A Product Characteristics 1 0.1 0.01 0.001 0.1 1 100 10 CURRENT IN AMPERES 1000 Part Numbering System 0259.062 M X913 SERIES AMP Code Example: The dot is poisitioned before the Packaging Suffix with whole ratings and within the numbering sequence for fractional ratings. Refer to Amp Code column in the Electrical Specifications table. 1 amp product is 0259001.MX913 (.062 amp product shown). PACKAGING Code Note: 1. Re-rating depicted in this curve is in addition to the standard derating of 25% for continuous operation. M = Bulk pack, 1000 pcs T = Bulk pack, 10 pcs Dimensions (.512") 13mm Soldering Parameters Recommended Process Parameters: Wave Parameter Preheat: (Depends on Flux Activation Temperature) 100°C Temperature Maximum: Preheat Time: 150°C 60-180 seconds Solder Dwell Time: (.025") .635mm (Typical Industry Recommendation) Temperature Minimum: Solder Pot Temperature: (.315") 8mm (.197") 5mm Lead-Free Recommendation 260°C Maximum 2-5 seconds Recommended Hand Soldering Parameters: Solder Iron Temperature: 350°C +/- 5°C Heating Time: 5 seconds max. Note: These devices are not recommended for IR or Convection Reflow process (.394") 10mm Packaging Packaging Option Packaging Specification Quantity Bulk N/A 1000 Bulk N/A 10 Quantity & Packaging Code M = Bulk 1000 pieces, T = Bulk 10 pieces Please refer to available quantities above in “Part Numbering System” © 2016 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 01/06/16