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457 Datasheet(PDF) 1 Page - Littelfuse |
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457 Datasheet(HTML) 1 Page - Littelfuse |
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1 / 2 page ![]() 050912 WebSite Europe Tel: +49 2302 662-107 Americas Tel: +1 404 699-7820 Asia Tel: +852 26 14-1108 China Tel: +86 21 6432 5146 www.wickmanngroup.com E-mail: sales@wickmann.com E-mail: service@wickmannusa.com E-mail: sales@wickmann.com.hk E-mail: sales@wickmann.cn 1,65 1,65 10 -0,5 Type (I) 100% x I 250% x I 500 mA ... 2.00 A > 4 h 1 ... 120 s SSSSSURFACE URFACE URFACE URFACE URFACE M M M M MOUNT OUNT OUNT OUNT OUNT TTTTTELECOM ELECOM ELECOM ELECOM ELECOM PPPPPROTECTORS ROTECTORS ROTECTORS ROTECTORS ROTECTORS Dimensions (mm) Dimensions (mm) Dimensions (mm) Dimensions (mm) Dimensions (mm) Operating Conditions Operating Conditions Operating Conditions Operating Conditions Operating Conditions Order Order Order Order Order Qty. Qty. Qty. Qty. Qty. Order- Order- Order- Order- Order- Series Series Series Series Series TTTTType Code Packaging ype Code Packaging ype Code Packaging ype Code Packaging ype Code Packaging Information Information Information Information Information Number Number Number Number Number 457 TTTTTelecom T elecom T elecom T elecom T elecom Tube Protector ube Protector ube Protector ube Protector ube Protector Overcurrent Protection for T Overcurrent Protection for T Overcurrent Protection for T Overcurrent Protection for T Overcurrent Protection for Telecom Equipment elecom Equipment elecom Equipment elecom Equipment elecom Equipment TTTTTime-Current Characteristic ime-Current Characteristic ime-Current Characteristic ime-Current Characteristic ime-Current Characteristic Transient Tolerant Applicable Standards Applicable Standards Applicable Standards Applicable Standards Applicable Standards UL-248-14 UL 60950 3rd Edition * Telcordia GR-1089 * FCC 47 CFR Part 68 Approvals Approvals Approvals Approvals Approvals cULus Recognized Features Features Features Features Features Surge proof for telecom line applications No need for series resistors (1.25A & 2.00A) Reduced PCB space requirements Lead-free construction Flame resistant ceramic housing Irreversible physical separation under fault Highly defined cut-off times Low internal resistance minimizes line losses For Reflow Soldering or Soldering Iron W W W W WebLinks ebLinks ebLinks ebLinks ebLinks Further info see: Further info see: Further info see: Further info see: Further info see: www.wickmanngroup.com Further application info see fuseology: Further application info see fuseology: Further application info see fuseology: Further application info see fuseology: Further application info see fuseology: www.wickmanngroup.com/download/ fuseology.pdf No. No. No. No. No. 457 Lead Free 457 Lead Free 457 Lead Free 457 Lead Free 457 Lead Free Pad Layout Pad Layout Pad Layout Pad Layout Pad Layout Chip Size 10030 Specifications Specifications Specifications Specifications Specifications Packaging Packaging Packaging Packaging Packaging 000: 2500 pcs./330mm reel (Blister Tape) 001: 500 pcs./178mm reel (Blister Tape) Tape width 16mm Materials Materials Materials Materials Materials Housing: Ceramic tube Element: Wire Terminals: Copper, nickel & silver plated Operating T Operating T Operating T Operating T Operating Temperature emperature emperature emperature emperature -40 ºC to +125 ºC (consider de-rating) Climatic T Climatic T Climatic T Climatic T Climatic Test est est est est Damp heat, steady state 40 ºC/ 93%/ 21 days (IEC 60068-1,-2-1,-2-2,-2-78) Stock Conditions Stock Conditions Stock Conditions Stock Conditions Stock Conditions +10 ºC to +60 ºC relative humidity ≤ 75 % yearly average, without dew, maximum value for 30 days - 95 % Recommended soldering Recommended soldering Recommended soldering Recommended soldering Recommended soldering 240 ºC, 30 s (Reflow) Solderability Solderability Solderability Solderability Solderability acc. to IEC 60068-2-58 235 °C, 2 s Soldering Heat Resistance Soldering Heat Resistance Soldering Heat Resistance Soldering Heat Resistance Soldering Heat Resistance 260 ºC, 10 s (IEC 60068-2-58) 280 ºC, 5 s (IEC 60068-2-58) Minimum Cross Section, Copper Minimum Cross Section, Copper Minimum Cross Section, Copper Minimum Cross Section, Copper Minimum Cross Section, Copper Conducting path - 0.175 mm2 Path thickness - 0.035 mm Mounting Mounting Mounting Mounting Mounting Avoid circuit traces below the Fuse. Fuse should not be enclosed in potting materials. Marking Marking Marking Marking Marking Logo, Current Rating Unit Weight Unit Weight Unit Weight Unit Weight Unit Weight 0.25 g (approx.) Lightning Surge Specifications Lightning Surge Specifications Lightning Surge Specifications Lightning Surge Specifications Lightning Surge Specifications Specifications are subject to change without notice Electrical Specifications Electrical Specifications Electrical Specifications Electrical Specifications Electrical Specifications Surge Specification Surge Repetitions Waveform ( µsec.) Current (A) Voltage (V) Performance Requirement FCC 47 Part 68 Logitudinal Type A 2 10x160 70A 1500 Fuse cannot open FCC 47 Part 68 Metallic Type A 2 10x560 45A 800 Fuse cannot open Telcordia GR-1089-CORE First Level Lightning 50 10x1000 30A 1000 Fuse cannot open FCC 47 Part 68 Longitudinal Type A 2 10x160 160 1500 Fuse cannot open FCC 47 Part 68 Metallic Type A 2 10x560 115 800 Fuse cannot open Telcordia GR-1089-CORE First Level Lightning 50 10x1000 100 1.000 Fuse cannot open Telcordia GR-1089-CORE First Level Lighting 50 2x10 500 2.500 Fuse cannot open 0500 tested 0500 tested 0500 tested 0500 tested 0500 tested 1250 and 1251 tested 1250 and 1251 tested 1250 and 1251 tested 1250 and 1251 tested 1250 and 1251 tested Type Code Current Voltage Rating Interrupting Rating Voltage Drop Cold Resistance Melting Integral Approvals AC 250VAC 600VAC 1.0 x I N 0.1 x I N 10 x I N 50/60 Hz cosϕ=1 max. (mV) max. (m Ω) typ. (A2s) 0500 500mA 250V 50A 60A 450 640 2 • 1250 1.25A 250V 50A 60A 250 150 16 • 1251 2.00A 250V 50A 60A 375 115 18 • UL 60950 3rd Edition * Telcordia1089 (2ndLevel)* Type Test M1 Test M2 Test M3 Test M3 Test 1 Test 2 Test 3 Test 4 Code 600V/1.5s 600V/5s 600V/30min Max. ∆∆∆∆∆ T (ºC) 277V/15min 600V/5s 600V/5s 600V/15min AC Power Fault Ratings • AC Power Fault Ratings • AC Power Fault Ratings • AC Power Fault Ratings • AC Power Fault Ratings • Permissible continuous operating current is Permissible continuous operating current is Permissible continuous operating current is Permissible continuous operating current is Permissible continuous operating current is ≤≤≤≤≤ 80 80 80 80 80 % at ambient % at ambient % at ambient % at ambient % at ambient temperature of 23 temperature of 23 temperature of 23 temperature of 23 temperature of 23 ºC ºC ºC ºC ºC (73.4 (73.4 (73.4 (73.4 (73.4 ºF) ºF) ºF) ºF) ºF) 0500 40A 7A 2.2A -- 25A 60A 7A 2.2A 1250 40A 7A 2.2A 120 25A 60A 7A 2.2A 1251 40A 7A 2.2A 50 25A 60A 7A 2.2A * UL60950 3rd edition * UL60950 3rd edition * UL60950 3rd edition * UL60950 3rd edition * UL60950 3rd edition aaaaand T nd T nd T nd T nd Telcordia 1089 (2nd Level) elcordia 1089 (2nd Level) elcordia 1089 (2nd Level) elcordia 1089 (2nd Level) elcordia 1089 (2nd Level) are device standards, which require a testing of the complete device. are device standards, which require a testing of the complete device. are device standards, which require a testing of the complete device. are device standards, which require a testing of the complete device. are device standards, which require a testing of the complete device. This product is not recommended for new designs. Please refer to Littelfuse No. 461. |
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