Special Application Fuses 242 Series Barrier Network Fuse 242 Series Barrier Network Fuse RoHS Description The 242 Series hazardous area barrier network fuse offers a range of fuses designed to enable greater safety operating electronic equipment within potentially explosive environments. Features • Available in both axial lead and surface mount. • High interrupting rating suitable for intrinsic safety protection of hazardous locations equipment. • RoHS compliant and Halogen-free Agency Approvals Agency Agency File Number Ampere Range E10480 0.050 - 0.250 A Electrical Characteristics % of Ampere Rating Opening Time 100% 4 hours, Minimum 300% 10 seconds, Maximum 1000% 0.002 seconds, Maximum Applications • Intrinsic saftey electrical equipment; Electrical connections and components, Test equipment Additional Information Datasheet Resources Samples Electrical Characteristics Nominal Cold Resistance (Ohms) Nominal Melting I2t (A2 Sec.) 11.34 0.000103 Agency Approvals Ampere Rating (A) Amp Code Body Color Coding 0.050 .050 Red 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 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 Interrupting Rating 4000A @ 250VAC/VDC x © 2015 Littelfuse, Inc. Specifications are subject tostrongly change recommended. without notice. Specifications are subject to change without notice. Application testing is Revised: 11/11/15 Special Application Fuses 242 Series Barrier Network Fuse Dimensions 4.60mm (.181") .080A .100A .125A .160A .200A .250A .050A Average Time Current Curves 1.90mm (.075") 100 3.02mm (.119") TIME IN SECONDS .635mm (.025") 8.40mm (.331") 10 1.90mm (.075") 4.60mm (.181") 1 3.02mm (.119") 8.40mm (.331") 0.1 9.80mm 0.01 2.90mm 0.001 3.20mm 0.0001 0.01 0.1 1 10 100 1000 CURRENT IN AMPERES 4.00mm Soldering Parameters Pb – Free assembly Pre Heat - 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 Product Characteristics tP TP Critical Zone TL to TP Ramp-up Temperature Reflow Condition TL TS(max) tL Ramp-down Preheat TS(min) tS 25 time to peak temperature (t 25ºC to peak) 260°C, 10 seconds max. Wave Soldering Part Numbering System Operating Temperature –40OC to 125OC (Consider re-rating) 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. © 2015 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 11/11/15 SERIES AMP CODE Time 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