0304.750HR

Special Application Fuses PICO® 304 Series Fuses > 277V UL913 Intrinsically Safe Fuse PICO® 304 Series – 277V UL913 Intrinsically Safe Fuse RoHS Description Features Agency • High Interrupting Rating of • Designed for operation 1500A in a range of hazardous environments • Well suited for 277V application • Encapsulated and sealed (1mm minimum) • Current rating options from 0.050 to 0.750A • Surface Mount Device IN A Agency Approvals Agency File Number Ampere Rating DEMKO 13 ATEX 1200U 50 - 750mA E358130 50 - 750mA IECEx UL 13.0077U 50 - 750mA Applications • Testing, measuring or • Process control and processing electronic and automation electrical equipment • Sensors • Motor controllers • Lighting IM Reference Standards Agency RY The PICO® 304 Series offers a range of suface mountable encapsulated fuses certified under UL 913, the standard for intrinsically safe electrical equipment, to operate in hazardous locations. Ideal for use in oil, gas, mine, chemical, and pharmaceutical industries, the PICO 304 Series surface mountable fuse was designed to limit the energy and temperature generated during its operation. The fuse design and its encapsulant are suitable for use in an intrinsically safe apparatus and associated apparatus for peak voltage not exceeding 375V. Standards • Communication handsets/ • Flow/gas meters two-way radios EN 60079-0, EN 60079-11, EN 60079-26 IECEx IEC 60079-0, IEC 60079-11, IEC 60079-26 UL UL 913, UL 60079-0, UL 60079-11 % of Ampere Rating CAN/CSA C22.2 No. 157, CAN/CSA C22.2 No. 60079-0, CAN/CSA C22.2 No. 60079-11 110% 4 Hours, Minimum 300% 10 Seconds, Maximum cUL EL ATEX Electrical Characteristics for Series Opening Time Electrical Specifications by Items Ampere Rating (A) Amp Code Nominal Melting I2t (A2 Sec.) Minimum Cold Resistance at -20°C (Ohms) 0304.050 0.050 0304.080 0.080 .050 0.00019 .080 0.00035 0304.100 0.100 .100 0304.160 0.160 .160 0304.200 0.200 .200 0304.250 0.250 .250 0304.500 0.500 0304.750 0.750 Agency Approvals Minimum Cold Resistance at -40°C (Ohms) Nominal Cold Resistance at 25°C (Ohms) 9.202 9.010 12.00 X X X 6.031 5.963 8.19 X X X 0.00070 2.709 2.668 5.00 X X X 0.00202 2.297 2.292 3.00 X X X 0.00288 1.935 1.839 2.68 X X X 0.00662 1.268 1.105 1.60 X X X .500 0.04462 0.392 0.368 0.46 X X X .750 0.13448 0.219 0.196 0.27 X X X Interrupting Rating PR Catalog Number 1500A @ 277VAC/DC Notes: 1) The fuse must be mounted so that creepage and clearance distances are not impaired in any way. 2) The fuse is suitable for use in intrinsically safe equipment and associated apparatus for voltage not exceeding 375V peak. 3) Maximum surface temperature rise at 170% rated current: ≤200mA = 88°C, 250mA = 52°C, 500mA = 52°C, and 750mA = 45°C. © 2017 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 02/22/17 Special Application Fuses PICO® 304 Series Fuses > 277V UL913 Intrinsically Safe Fuse -40ºC to +60ºC -40ºC to +56ºC -40ºC to +84ºC 0.750A -40ºC to +56ºC 1) Any use of the 304 Series fuse outside of the ambient temperature ranges specified in the table is subject to additional investigation. Thermal Shock Withstands 5 cycles of –55°C to 125°C Vibration Per MIL-STD-202 Insulation Resistance (After Opening) Greater than 10,000 ohms (at twice rated DC voltage) 10 TIME IN SECONDS Note: IN A RY 0.250A 0.500A 100 .750A Ambient Temperature ≤0.200A .050A Operating Temperature Current Rating .500A Average Time Current Curves .080A .100A .160A .200A .250A Product Characteristics 1 0.1 0.01 0.001 Reflow Condition Pre Heat - Temperature Min (Ts(min)) 150°C - Temperature Max (Ts(max)) - Time (Min to Max) (ts) 200°C 60 - 120 seconds 5°C/second max EL Average Ramp-up Rate (Liquidus Temp (TL) to peak) TS(max) to TL - Ramp-up Rate Reflow Pb-free assembly - Temperature (TL) (Liquidus) - Temperature (tL) 5°C/second max 217°C 60 - 90 seconds 260+0/-5°C Time within 5°C of actual peak Temperature (tp) 20 -40 seconds Ramp-down Rate 5°C/second max Time 25°C to Peak Temperature (TP) 8 minutes max Do not exceed 260°C Wave Soldering 260°C, 10 sec. max PR Peak Temperature (TP) 0.01 1 10 CURRENT IN AMPERES 0.1 100 1000 tP TP Critical Zone TL to TP Ramp-up TL tL TS(max) Temperature Soldering Parameters IM 0.0001 Ramp-down TS(min) 25 Preheat tS time to peak temperature (t 25ºC to peak) Time © 2017 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 02/22/17 Special Application Fuses PICO® 304 Series Fuses > 277V UL913 Intrinsically Safe Fuse Dimensions (mm) Temperature Rerating Curve 140 120 IN A RY 6.09 ± 0.10 13.67 ± 0.10 PERCENT OF RATING 2.91 ± 0.10 6.03 ± 0.10 LF Phils. 2017 304.XXX UL913 277V II 1 G Ex ia IIC IECEx UL 13.0077U DEMKO 13 ATEX 1200U 100 80 60 25˚C 40 0.10 Max. 20 1.37± 0.10 10.90± 0.20 2.00± 0.10 -60 -40 -20 0 20 40 60 80 100 AMBIENT TEMPERATURE (˚C) Note: 3.00 RECOMMENDED PAD LAYOUT 1) Rerating depicted in this curve is in addition to the standard rerating of 25% for continuous operation. Part Numbering System 0304 .050 Z R 11.20 EL IM 1.70 SERIES AMP CODE Refer to Electrical Specifications table QUANTITY CODE Z = 800 pcs H = 100 pcs PACKAGING CODE R = Tape and Reel Packaging Packaging Specification 24mm Tape and Reel EIA 481-1 PR Packaging Option © 2017 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 02/22/17 Quantity Quantity & Packaging Code 800 ZR 100 HR 120