0242.200UAT1

Special Application Fuses 242 Series Barrier Fuse 242 Series Barrier Fuse RoHS Description The 242 Series fuse is designed for barrier circuits in intrinsic safety applications relating to Hazardous Locations. Ranging from 40mA to 250mA, the 242 Series provides overcurrent protection solutions to fit many Hazardous Location barrier applications. Features Agency Approvals Agency • Available in both axial lead and surface mount. • High interrupting rating suitable for intrinsic safety protection of hazardous locations equipment. Agency File Number Ampere Range E10480 0.040A - 0.250A Electrical Characteristics % of Ampere Rating Opening Time 100% 4 hours, Minimum 300% 10 seconds, Maximum 1000% 0.002 seconds, Maximum • RoHS compliant and Halogen-free. Applications • Intrinsic saftey electrical equipment; Electrical connections and components; Test equipment • Barriers providing intrinsically safe outputs to Hazardous Locations Additional Information Datasheet Samples Resources Electrical Characteristics Nominal Cold Resistance (Ohms) Nominal Melting I2t (A2 Sec.) 0.000078 Ampere Rating (A) Amp Code Body Color Coding 0.040 .040 Gold 16.48 Interrupting Rating Agency Approvals x 0.050 .050 Red 11.34 0.000103 x 0.080 .080 Green 8.19 0.000214 x 0.100 .100 Blue 3.60 0.000977 x 0.125 .125 Orange 3.78 0.001026 x 4000A @ 250VAC/VDC 0.160 .160 Violet 3.00 0.00157 x 0.200 .200 Brown 2.68 0.0025 x 0.250 .250 Black 1.6 0.00579 x 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. Specifications are subject to change without notice. Application testing is strongly recommended. © 2018 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 05/31/18 Special Application Fuses 242 Series Barrier Fuse .040A .050A 140% 100 120% 100% 80% 10 60% 40% 20% 0% -55 -35 -15 5 25 -45 65 85 105 125 Temperature (°C) TIME IN SECONDS Percent of Rating .080A .100A .125A .160A .200A .250A Average Time Current Curves Temperature De-Rating Curve 1 0.1 0.01 0.001 0.0001 0.01 0.1 1 10 100 1000 CURRENT IN AMPERES Soldering Parameters Pre Heat Pb – Free assembly - Temperature Min (Ts(min)) 150°C - Temperature Max (Ts(max)) 200°C - Time (min to max) (ts) 60 – 180 secs Average ramp up rate (Liquidus Temp (TL) to peak 5°C/second max TS(max) to TL - Ramp-up Rate 5°C/second max Reflow - Temperature (TL) (Liquidus) 217°C - Temperature (tL) 60 – 150 seconds Peak Temperature (TP) 250+0/-5 °C Time within 5°C of actual peak Temp. (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 Material Information tP TP Critical Zone TL to TP Ramp-up TL TS(max) Temperature Reflow Condition tL Ramp-down Preheat TS(min) 25 tS time to peak temperature (t 25ºC to peak) Wave Soldering Time 260°C, 10 seconds max. Product Characteristics Body Ceramic Leads Tin-Plated Copper Endcaps Silver-Plated Brass © 2018 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 05/31/18 Operating Temperature –40OC to 125OC (Consider rerating) Thermal Shock Withstands 5 cycles of – 55OC to 125OC Vibration Per MIL-STD-202 Method 201 Insulation Resistance (After Opening) Greater than 10,000 ohms. Special Application Fuses 242 Series Barrier Fuse Part Numbering System Dimensions 4.60mm (.181") 3.02mm (.119") 8.40mm (.331") 4.60mm (.181") 1.90mm (.075") SERIES AMP CODE .635mm (.025") 0242.050UAT1 Refer to Amp Code column in the Electrical Specifications table. QUANTITY & PACKAGING CODE HAT1 = 100 pcs, Axial Leaded, Ammo Pack T1 Tape UAT1 = 500 pcs, Axial Leaded, Ammo Pack T1 Tape UR = 500 pcs, Surface Mount, Tape & Reel 1.90mm (.075") 3.02mm (.119") 8.40mm (.331") 9.80mm 2.90mm 3.20mm 4.00mm 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. © 2018 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 05/31/18