Special Application Fuses 242 Series Barrier Network Fuse Barrier Network Fuse 242 Series Description / iEO{OE-iAiAE >a>AOAE>Ai>EL>AAiAEiIUAEvOAiE offers a range of fuses designed to enable greater safety iA>I}EiiVIAVEiOiIEUI EIiI>EiYAUiE iUAiIAE Features UE iiIAE >AAiAE iIUAE -I>>AAE xaaOa(R)E for hazardous applications. UE } EIiAAOI}E rating. Meets the Agency Approvals Agency 1500A minimum. UE U>>LiEELI E>Y>E lead and surface mount. Agency File Number Ampere Range Recognized under the components program of Underwriters Laboratories (JDYX2-10480) Applications UE /iEEAIiVIiE electrical equipment; Electrical connections and components, Test equipment 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 Electrical Characteristics Agency Approvals Amp Code 0.050 .050 Red 11.34 0.000103 x 0.080 .080 Green 8.19 0.000214 x 3.60 0.000977 x 3.00 0.00157 x Interrupting Rating 0.100 .100 Oi 0.160 .160 Violet 0.200 .200 AU 2.68 0.0038 x 0.250 .250 >V 1.6 0.00579 x 4000A @ 250VAC/VDC (c) 2009 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/242.html for current information. 343 Revised: September 20, 2011 242 Series Body Color Coding Nominal Nominal Cold Melting Resistance 2 I t (A2 Sec.) (Ohms) Ampere Rating (A) Barrier Network Fuse 242 Series Introduction to Application Circuit Protection Special Fuses 242 Series Barrier Transientology Network Fuse Dimensions .080A .100A .125A .160A .200A .250A .050A Average Time Current Curves 4.60mm (.181") 100 1.90mm (.075") 3.02mm (.119") TIME IN SECONDS .635mm (.025") 8.40mm (.331") 10 1 4.60mm (.181") 1.90mm (.075") 3.02mm (.119") 0.1 8.40mm (.331") 0.01 9.80mm 2.90mm 0.001 0.0001 0.01 0.1 1 10 100 3.20mm 1000 CURRENT IN AMPERES Soldering Parameters Reflow Condition Pb - Free assembly Pre Heat - Temperature Max (Ts(max)) 200C - Time (min to max) (ts) 60 - 180 secs 5C/second max TS(max) to TL - Ramp-up Rate 5C/second max - Temperature (TL) (Liquidus) 217C - Temperature (tL) 60 - 150 seconds +0/-5 Peak Temperature (TP) 250 Time within 5C of actual peak Temp. (tp) 20 - 40 seconds Ramp-down Rate 5C/second max Time 25C to peak Temperature (TP) 8 minutes Max. Do not exceed 260C TL TS(max) tL Ramp-down Preheat TS(min) tS 25 time to peak temperature (t 25C to peak) C Wave Soldering Time 260C, 10 seconds max. Part Numbering System Product Characteristics Operating Temperature -40OC to 125OC. Thermal Shock Withstands 5 cycles of - 55OC to 125OC Vibration Per MIL-STD-202F Insulation Resistance (After Opening) Greater than 10,000 ohms. Barrier Network Fuse 242 Series Critical Zone TL to TP Ramp-up Average ramp up rate (Liquidus Temp (TL) to peak Reflow tP TP 150C Temperature - Temperature Min (Ts(min)) 0242.050UAT1 SERIES AMP CODE Refer to Amp Code column in the Electrical Specifications table. QUANTITY & PACKAGING CODE /ErEaaEVA]EY>Ei>i]EE*>VE/E/>i 1/ErExaaEVA]EY>Ei>i]EE*>VE/E/>i 1,EEEEErExaaEVA]E-OAv>ViEOI]E/>iEEE,ii 344 (c) 2009 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/242.html for current information.