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| POLYFUSE(R) Resettable PTCs Surface Mount > 250S Series 250S Series Description The 250S High Voltage Radial device is a Polymer-based PTC suitable to protect telephony equipment against lightining and power cross strikes. The 250S Series is fully compatible with telecommunications standards. PRELIMINARY DATA SHEET: This product is scheduled for release by end of 2008 and specifications may change. Please refer to www.littelfuse.com/series/250S.html for the current information. Features Agency Approvals AGENCY AGENCY FILE NUMBER Pending Directive 2002/95/EC inspectability standards Applications Electrical Characteristics Time to Trip at 1A Pd typ. (W) Typical Maximum (Sec.) (Sec.) 1.2 1.2 1.2 1.2 0.9 1.4 0.7 1.1 4.0 4.0 4.0 4.0 Resistance R min () 4.0 6.5 9 7 R max () 13 10 13 11 R 1max () 20 15 20 17 Agency Approvals Part Number I hold (A) 0.13 0.13 0.13 0.13 I trip (A) 0.26 0.26 0.26 0.26 V max (Vint /Vop) 250/60 250/60 250/60 250/60 I max (A) 3 3 3 3 250S130 250S130-RA 250S130-RB 250S130-RC - - - - I hold = Hold current: maximum current device will pass without tripping in 23C still air. I trip = Trip current: minimum current at which the device will trip in 23C still air. Vint = Maximum voltage the device can withstand without damage at rated current (I max) Vop= The device regular operation voltage I max = Maximum fault current device can withstand without damage at rated voltage (Vmax) P d = Power dissipated from device when in the tripped state at 23C still air. R min = Minimum resistance of device in initial (un-soldered) state. R max = Maximum resistance of device in initial (un-soldered) state. R 1max = Maximum resistance of device at 20C measured one hour after tripping. Caution: Operation beyond the specified rating may result in damage and possible arcing and flame. (c)2009 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/250S.html for current information. 105 Revised: April 3, 2009 250S Series 250S Series POLYFUSE(R) Resettable PTCs Surface Mount > 250S Series Temperature Rerating Ambient Operation Temperature -40C Part Number 250S130 0.21 0.19 0.17 0.13 -20C 0C 23C 40C Hold Current (A) 0.11 0.10 0.09 0.07 0.05 50C 60C 70C 85C Average Time Current Curves 0.13A Temperature Rerating Curve 200.00 1000 250S 160.00 Percentage of rated current % 120.00 100 80.00 Time in Seconds 40.00 10 0.00 -40.00 0.00 40.00 80.00 120.00 Device Ambient Temperature C 1 Agency Specification Selection Guide For Telecom and Networking Applications Product Lightning Power Cross 0.10 0.1 1 10 100 Current in Amperes 250S130 250S130-RA 250S130-RB 250S130-RC 1.5kV 10/700s The average time current curves and Temperature Rerating curve performance is affected verify the performance in their application. Protection Application Guide Region/ Specification South America/ Asia/Europe Device Selection 250S130 250S130-RA 250S130-RB 250S130-RC 250S130 250S130-RA 250S130-RB 250S130-RC 250S130 250S130-RA 250S130-RB 250S130-RC Application Access network equipment Remote terminal Repeaters WAN equipment Cross -connect Customer and IT equipment Analog modems South America/ Asia/Europe South America/ Asia/Europe Internet appliances POS terminals Central Office POTS/ISDN linecards T1/E1/J1 linecards ADSL/VDSL splitters 250S Series 106 Revised: April 3, 2009 (c)2009 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/250S.html for current information. POLYFUSE(R) Resettable PTCs Surface Mount > 250S Series Soldering Parameters Profile Feature S(max) Pb-Free Assembly to TP) 3C/second max 150C 200C 60 - 180 secs 217C 60 - 150 seconds 260+0/-5 C 20 - 40 seconds 6C/second max 8 minutes Max. performance requirements for lead -- Recommended maximum paste thickness is 0.25mm (0.010inch) -- Devices can be cleaned using standard industry methods and solvents -- Devices can be reworked using the standard industry practices 2 Temperature Min (Ts(min)) Pre Heat: Temperature Max (Ts(max)) Time (Min to Max) (ts) Time Maintained Above: Temperature (tL) Time within 5C of actual peak Temperature (tp) Ramp-down Rate Temperature (TL) Peak / Classification Temperature (TP) Time 25C to peak Temperature (TP) environment Physical Specifications Solder-Plated Copper (Solder Material: Matte Tin(Sn)) J-STD-002 Category 3. Environmental Specifications Operating/Storage Temperature Maximum Device Surface Temperature in Tripped State Passive Aging Humidity Aging Thermal Shock Solvent Resistance Moisture Sensitivity Level +125C to -55C 10 times Terminal Material Lead Solderability -40C to +85C 125C -/+10C (c)2009 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/250S.html for current information. 107 Revised: April 3, 2009 250S Series 250S Series POLYFUSE(R) Resettable PTCs Surface Mount > 250S Series Dimensions H C B D A E F G G Recommended PCB Pad Layout F G H Physical Inch mm Inch mm Inch mm Inch mm Inch mm Characteristics Inch mm Inch mm Inch mm Material Max. Max. Max. Max. Max. Max. Max. Max. Max. Max. Max. Max. Max. Max. Max. Max. 0.37 0.37 0.37 0.37 9.4 9.4 9.4 9.4 0.15 0.15 0.15 0.15 3.7 3.7 3.7 3.7 0.29 0.29 0.29 0.29 7 .4 7 .4 7 .4 7 .4 0.016 0.016 0.016 0.016 0.4 0.4 0.4 0.4 0.15 0.15 0.15 0.15 3.8 3.8 3.8 3.8 Sn/Ni/Cu Sn/Ni/Cu Sn/Ni/Cu Sn/Ni/Cu 0.18 0.18 0.18 0.18 4.6 4.6 4.6 4.6 0.07 0.07 0.07 0.07 1.8 1.8 1.8 1.8 0.24 0.24 0.24 0.24 6.1 6.1 6.1 6.1 A B C D E Part Number 250S130 250S130-RA 250S130-RB 250S130-RC Part Ordering Number System 250 S 130 - RA D R PACKAGING STYLE R: Tape & Ammo QUANTITY CODE: D=1500 RESISTANCE RANGE BLANK -RA -RB -RC I HOLD CURRENT CODE (Refer to Electrical Characteristics Table) SURFACE MOUNT PEAK VOLTAGE RATING Packaging Part Number 250S130 250S130-RA 250S130-RB 250S130-RC Ordering Number 250S130DR 250S130-RADR 250S130-RBDR 250S130-RCDR I hold (A) 0.13 0.13 0.13 0.13 I hold Code 130 130 130 130 Packaging Option Tape and Reel Tape and Reel Tape and Reel Tape and Reel Quantity 1500 1500 1500 1500 Quantity & Packaging Code DR DR DR DR 250S Series 108 Revised: April 3, 2009 (c)2009 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/250S.html for current information. POLYFUSE(R) Resettable PTCs Surface Mount > 250S Series Tape and Reel Specifications TAPE SPECIFICATIONS: EIA-481-1 (mm) W F E1 D0 D1 P0 P1 P2 A0 B0 Tmax K0 Leader Min. Trailer Min. 16 +/- 0.30 7 +/- 0.05 .5 1.75 +/- 0.10 1.5 +/- 0.05 1.00(MIN) 4.00 +/- 0.10 12.00 +/- 0.10 2.00 +/- 0.05 6.9 +/- 0.10 9.6 +/- 0.10 0.4 +/- 0.10 3.4 +/- 0.15 300 300 REEL DIMENSIONS: EIA-481-1 (mm) H W D F C H1 W1 W2 W3 W4 22.4 +/- 0.05 16.4 .0 +0/+2 O60+0.5 O13.0+/- 0.2 O340+/- 1.0 11+/- 0.5 3.0+0.5 4.0+0.5 5.5+0.5 Tape and Reel Diagram H P1 P0 D0 P2 E1 W4 W3 D F W W2 C T D2 F W1 W A0 K0 B0 H1 (c)2009 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/250S.html for current information. 109 Revised: April 3, 2009 250S Series 250S Series 2.2+/- 0.5 |
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