POLYFUSE® Resettable PTCs Surface Mount > 250S Series 250S Series Description Features • RoHS Compliant, Directive 2002/95/EC • Lead-Free & Halogen-Free • Low resistance • Compatible with telecom standards Agency Approvals AGENCY AGENCY FILE NUMBER E183209 • Helps meets ITU K.20, K.21/Telcordia standards • Excellent solder joint inspectability • High voltage Applications • LAN/WAN equipment • Access equipment • Customer Premises Equipment (CPE) • Central Office (CO)/ telecom centers Electrical Characteristics Device Mounting Layout I hold (A) I trip (A) V max (Vint /Vop) I max (A) Pd typ. (W) 250S130 0.13 0.26 250/60 3 250S130–RA 0.13 0.26 250/60 3 Part Number 250S130–RB Horizontal 250S130–RC 250S130V Vertical Time to Trip at 1A Agency Approvals Resistance 4.0 R min (Ω) 4 R max (Ω) 13 R 1max (Ω) 20 – 4.0 6.5 10 15 – Typical (Sec.) Maximum (Sec.) 1.2 0.9 1.2 1.4 0.13 0.26 250/60 3 1.2 0.7 4.0 9 13 20 – 0.13 0.26 250/60 3 1.2 1.1 4.0 7 11 17 – 0.13 0.26 250/60 3 1.2 2.0 4.0 4 13 20 – I hold = Hold current: maximum current device will pass without tripping in 23°C still air. R min = Minimum resistance of device in initial (un-soldered) state. I trip = Trip current: minimum current at which the device will trip in 23°C still air. R max = Maximum resistance of device in initial (un-soldered) state. Vint = Maximum voltage the device can withstand without damage at rated current (I max) R 1max = Maximum resistance of device at 20°C measured one hour after tripping. Vop= The device regular operation voltage Caution: Operation beyond the specified rating may result in damage and possible arcing and flame. 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 23°C still air. ©2009 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/250S.html for current information. 57 250S Series Revised: November 30, 2009 250S Series 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, and is offered in horizontal and new vertical surface mount package. POLYFUSE® Resettable PTCs Surface Mount > 250S Series Temperature Rerating Ambient Operation Temperature -40°C -20°C 0°C 23°C 0.21 0.19 0.17 0.13 50°C 60°C 70°C 85°C 0.10 0.09 0.07 0.05 Hold Current (A) Part Number 250S130 0.11 Temperature Rerating Curve 0.13A Average Time Current Curves 200.00 250S 1000 Percentage of rated current % 160.00 100 Time in Seconds 40°C 120.00 80.00 40.00 10 0.00 -40.00 0.00 40.00 80.00 120.00 Device Ambient Temperature ºC 1 Agency Specification Selection Guide For Telecom and Networking Applications 0.10 0.1 Product 1 10 250S130 250S130V 250S130-RA 250S130-RB 250S130-RC 100 Current in Amperes The average time current curves and Temperature Rerating curve performance is affected by a number or variables, and these curves provided as guidance only. Customer must verify the performance in their application. Lightning ITU K.20/21/45 – 1.5kV 10/700μs Power Cross ITU K.20/21/45 – 230Vac, 10Ω Protection Application Guide Region/ Specification South America/ Asia/Europe ITU K.45 South America/ Asia/Europe ITU K.21 South America/ Asia/Europe ITU K.20 58 250S Series Revised: November 30, 2009 Application Access network equipment Remote terminal Repeaters WAN equipment Cross –connect Customer and IT equipment Analog modems ADSL, xDSL Phone sets, PBX systems Internet appliances POS terminals Central Office POTS/ISDN linecards T1/E1/J1 linecards ADSL/VDSL splitters CSU/DSU Device Selection 250S130 250S130V 250S130-RA 250S130-RB 250S130-RC 250S130 250S130V 250S130-RA 250S130-RB 250S130-RC 250S130 250S130V 250S130-RA 250S130-RB 250S130-RC ©2009 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/250S.html for current information. POLYFUSE® Resettable PTCs Surface Mount > 250S Series Soldering Parameters Profile Feature Pb-Free Assembly Average Ramp-Up Rate (TS(max) to TP) 3°C/second max Temperature Min (Ts(min)) 150°C Temperature Max (Ts(max)) 200°C Time (Min to Max) (ts) 60 – 180 secs Temperature (TL) Time Maintained Above: Temperature (tL) 217°C Peak / Classification Temperature (TP) 260+0/-5 °C Time within 5°C of actual peak Temperature (tp) 20 – 40 seconds Ramp-down Rate 6°C/second max Time 25°C to peak Temperature (TP) 8 minutes Max. 60 – 150 seconds -- All temperature refer to topside of the package, measured on the package body surface -- If reflow temperature exceeds the recommended profile, devices may not meet the performance requirements -- Recommended reflow methods: IR, vapor phase oven, hot air oven, N2 environment 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 Physical Specifications Environmental Specifications Terminal Material Solder-Plated Copper (Solder Material: Matte Tin(Sn)) Operating/Storage Temperature -40°C to +85°C Lead Solderability Meets EIA Specification RS186-9E, ANSI/ J-STD-002 Category 3. Maximum Device Surface Temperature in Tripped State 125°C -/+10ºC Passive Aging +85°C, 1000 hours Humidity Aging +85°C, 85%,R.H.,1000 hours Thermal Shock MIL–STD–202F, Method 107G +125°C to -55°C 10 times Solvent Resistance MIL–STD–202, Method 215F Moisture Sensitivity Level Level 1, J–STD–020C ©2009 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/250S.html for current information. 59 250S Series Revised: November 30, 2009 250S Series Pre Heat: POLYFUSE® Resettable PTCs Surface Mount > 250S Series Dimensions C H B F D A E G G Soldering Pad Layout A Part Number B C D E F Inch mm Inch mm Inch mm Inch mm Inch mm Max. Max. Max. Max. Max. Max. Max. Max. Max. Max. Material Inch G H mm Inch mm Inch mm Max. Max. Max. Max. Max. Max. 250S130 0.37 9.4 0.15 3.7 0.29 7.4 0.016 0.4 0.15 3.8 Sn/Ni/Cu 0.18 4.6 0.07 1.8 0.24 6.1 250S130–RA 0.37 9.4 0.15 3.7 0.29 7.4 0.016 0.4 0.15 3.8 Sn/Ni/Cu 0.18 4.6 0.07 1.8 0.24 6.1 250S130–RB 0.37 9.4 0.15 3.7 0.29 7.4 0.016 0.4 0.15 3.8 Sn/Ni/Cu 0.18 4.6 0.07 1.8 0.24 6.1 250S130–RC 0.37 9.4 0.15 3.7 0.29 7.4 0.016 0.4 0.15 3.8 Sn/Ni/Cu 0.18 4.6 0.07 1.8 0.24 6.1 C A I G B H J G H D F Part Number A Inch B mm Inch C mm Soldering Pad Layout E Inch D mm Inch E mm Inch F mm Inch mm G H I J Material Inch mm Inch mm Inch mm Inch mm Max. Max. Max. Max. Max. Max. Max. Max. Max. Max. Max. Max. 250S130V .24 6.1 .27 6.9 .13 3.2 .04 1.0 .07 1.9 .09 2.3 Max. Max. Max. Max. Max. Max. Max. Max. Sn/Ni/Cu .09 2.3 .09 2.4 .25 6.4 .14 3.43 Part Ordering Number System 250 S 130 -RA D R PACKAGING STYLE R: Tape & Reel QUANTITY CODE: D=1500 OPTION CODE (BLANK) = Horizontal / 4-13Ω resistance range V = Vertical / 4-13Ω resistance range -RA = Horizontal / 6.5-10Ω resistance range -RB = Horizontal / 9-13Ω resistance range -RC = Horizontal / 7-11Ω resistance range I HOLD CURRENT CODE (Refer to Electrical Characteristics Table) SURFACE MOUNT PEAK VOLTAGE RATING Packaging Part Number Ordering Number I hold (A) I hold Code Packaging Option Quantity Quantity & Packaging Code DR 250S130 250S130DR 0.13 130 Tape and Reel 1500 250S130V 250S130VDR 0.13 130 Tape and Reel 1500 DR 250S130–RA 250S130–RADR 0.13 130 Tape and Reel 1500 DR 250S130–RB 250S130–RBDR 0.13 130 Tape and Reel 1500 DR 250S130–RC 250S130–RCDR 0.13 130 Tape and Reel 1500 DR 60 250S Series Revised: November 30, 2009 ©2009 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/250S.html for current information. POLYFUSE® Resettable PTCs Surface Mount > 250S Series Tape and Reel Specifications TAPE SPECIFICATIONS: EIA-481-1 (mm) W REEL DIMENSIONS: EIA-481-1 (mm) 16 +/- 0.30 H 22.4 +/- 0.05 7.5 +/- 0.05 W 16.4 .0 +0/+2 1.75 +/- 0.10 D Ø60+0.5 D0 1.5 +/- 0.05 F Ø13.0+/- 0.2 D1 1.00(MIN) C Ø340+/- 1.0 P0 4.00 +/- 0.10 H1 11+/- 0.5 P1 12.00 +/- 0.10 W1 2.2+/- 0.5 P2 2.00 +/- 0.05 W2 3.0+0.5 A0 6.9 +/- 0.10 W3 4.0+0.5 W4 5.5+0.5 B0 9.6 +/- 0.10 Tmax 0.4 +/- 0.10 K0 3.4 +/- 0.15 Leader Min. 300 Trailer Min. 300 250S Series F E1 Tape and Reel Diagram H P1 P2 D0 E1 P0 W4 W3 D F W T W2 W F D2 C W1 A0 K0 ©2009 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/250S.html for current information. H1 B0 61 250S Series Revised: November 30, 2009