POLY-FUSE Resettable PTCs Surface Mount > 250S Series RoHS 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, and is offered in horizontal and new vertical surface mount package. Features Helps meets ITU K.20, RoHS Compliant, K.21/Telcordia standards Directive 2002/95/EC Ex cellent solder joint Lead-Free & Halogen-Free Agency Approvals inspectability Low resistance High v oltage Compatible with telecom AGENCY AGENCY FILE NUMBER standards E183209 Applications R50120008 Customer P remises LAN/WAN equipment Equipment (CPE) Access equipment Central Office (CO)/ telecom centers Additional Information Datasheet Resources SamplesSamples Electrical Characteristics Agency Time to Trip at 1A Resistance Device I I V I Approvals P typ. hold trip max max d Part Number Mounting (W) (A) (A) (V /V ) (A) R R R Typical Maximum int op min max 1max Layout (Sec.) (Sec.) () () () 250S130 0.13 0.26 250/60 3 1.2 0.9 4.0 4 13 20 250S130RA 0.13 0.26 250/60 3 1.2 1.4 4.0 6.5 10 15 Horizontal 250S130RB 0.13 0.26 250/60 3 1.2 0.7 4.0 9 13 20 250S130RC 0.13 0.26 250/60 3 1.2 1.1 4.0 7 11 17 250S130V Vertical 0.13 0.26 250/60 3 1.2 2.0 4.0 4 13 20 I = Hold current: maximum current device will pass without tripping in 20C still air. R = Minimum resistance of device in initial (un-soldered) state. hold min I = Trip current: minimum current at which the device will trip in 20C still air. R = Maximum resistance of device in initial (un-soldered) state. trip max V = Maximum voltage the device can withstand without damage at rated current (I max) R = Maximum resist ance of device at 20C measured one hour after tripping. int 1max V = The device regular operation voltage Caution: Operation beyond the specified rating may result in damage and possible arcing op and flame. I = Maximum fault current device can withstand without damage at rated voltage (V ) max max P = Power dissipated from device when in the tripped state at 20C still air. d WARNING Users shall independently assess the suitability of these devices for each of their Exposure to silicon-based oils, solvents, electrolytes, acids, and similar materials can applications adversely affect the performance of these PPTC devices Operation of these devices beyond the stated maximum ratings could result in damage to These devices undergo thermal expansion under fault conditions, and thus shall be the devices and lead to electrical arcing and/or fire provided with adequate space and be protected against mechanical stresses These devices are intended to protect against the effects of temporary over-current or over- Circuits with inductance may generate a voltage (L di/dt) above the rated voltage of the temperature conditions and are not intended to perform as protective devices where such PPTC device. conditions are expected to be repetitive or prolonged in duration 2017 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 03/22/17 POLY-FUSE Resettable PTCs Surface Mount > 250S Series Temperature Rerating Ambient Operation Temperature -40C -20C 0C 20C 40C 50C 60C 70C 85C Hold Current (A) Part Number 0.19 0.17 0.13 0.11 0.10 0.09 0.07 0.05 250S130 0.21 Average Time Current Curves Temperature Rerating Curve 1812L 100000 200.00 2920L 0603L 0805L 1206L 1210L 2016L 250S 100 100 100 1000 10000 100 100.00 100 160.00 120.00 1000 10 10 10 100 10 10.00 10 80.00 100 40.00 1 1 1 10 1 10 1.00 1 0.00 -40.00 0.00 40.00 80.00120.00 Device Ambient Temperature C 1 0.1 0.1 0.1 0.10 0.1 0.1 1 Agency Specification Selection Guide For Telecom 0.1 and Networking Applications Product Lightning Power Cross 0.01 0.01 0.01 0.10 0.01 0.01 0.01 0.01 250S130 10.00 0.1 110 100 0.1 110 100 0.1 110 0.101.00 10.00 0.1 110100 0.1 110 0.1 110 100 0.1 110100 250S130V Current in Amperes Current in Amperes Current in Amperes Current in Amperes Current in Amperes Current in Amperes Current in Amperes Current in Amperes ITU K.20/21/45 ITU K.20/21/45 250S130-RA 1.5kV 10/700s 230Vac, 10 250S130-RB The average time current curves and Temperature Rerating curve performance is affected 250S130-RC by a number or variables, and these curves provided as guidance only. Customer must verify the performance in their application. Protection Application Guide Region/ Device 0805L OLD 1210L OLD 1206L OLD Application 10000 2920L 2016L OLD 100000 100000 Specification Selection 100000 100000 Access network equipment 250S130 South America/ Remote terminal 250S130V 10000 1000 10000 Asia/Europe Repeaters 250S130-RA 10000 10000 ITU K.45 WAN equipment 250S130-RB Cross connect 250S130-RC 100 1000 Customer and IT equipment 1000 1000 1000 250S130 Analog modems South America/ 250S130V ADSL, xDSL Asia/Europe 250S130-RA Phone sets, PBX systems 100 10 100 100 ITU K.21 250S130-RB 100 Internet appliances 250S130-RC POS terminals Central Office 250S130 10 1 10 10 10 South America/ POTS/ISDN linecards 250S130V Asia/Europe T1/E1/J1 linecards 250S130-RA ITU K.20 ADSL/VDSL splitters 250S130-RB 1 0.1 1 1 1 CSU/DSU 250S130-RC 2017 Littelfuse, Inc. 0.1 0.01 0.1 0.1 0.1 Specifications are subject to change without notice. 0.1 110100 Revised: 03/22/17 Current in Amperes 0.01 0.01 0.01 0.01 0.1 110 100 0.1 110 100 0.11 10 100 0.1 110 100 Current in Amperes Current in Amperes Current in Amperes Current in Amperes Time in Seconds 0.04A 0.10A 0.20A 0.25A 0.35A 0.50A Time in Seconds Time in Seconds 0.10A 0.10A 0.20A 0.20A 0.35A 0.35A 0.50A 0.50A 0.75A 0.75A 1.00A 1.00A 1.10A Time in Seconds Time in Seconds 0.12A 0.16A 0.12A 0.20A 0.16A 0.25A 0.20A 0.35A 0.25A 0.35A/15V 0.35A, 0.35A/15V 0.50A 0.50A, 0.50A/15V 0.50A/15V 0.75A 0.75A 0.75A/13.2V 1.0A 1.1A 1.1A 1.5A 1.5A 1.75A 2.0A 2.0A Time in Seconds Time in Seconds 0.05A 0.10A 0.20A 0.05A 0.35A 0.10A 0.50A 0.20A 0.75A 0.35A 1.10A 0.35A/30 1.50A 0.50A 1.75A 0.50A/30 2.00A 0.75A 0.75A/24 1.10A 1.50A 1.50A/16 1.75A 2.00A Time in Seconds 0.10A 0.14A 0.20A 0.50A 0.75A/33V 0.75A/24V 0.75A 1.10A/16V 1.10A/33V 1.10A 1.25A 1.25A/6V 1.50A/12V 1.50A 1.50A/24V 1.60A/12V 1.60A 1.60A/8V 2.00A 2.60A Time in Seconds Time in Seconds 0.16A 0.30A 1.00A/33v 1.00A 0.30A 1.50A 0.50A 2.00A 0.75A/60 1.00A 1.00A/33 1.50A 2.00A Time in Seconds Time in Seconds 0.10A 0.30A 0.30A 0.50A 0.50A .75A .75A/60 0.75A & 0.75A/60 1.00A 1.00A 1.25A 1.25A 1.50A 1.50A 1.85A 1.85A 2.00A/24V 2.00A/24V 2.00A 2.50A 2.50A 2.60A & 2.60A/24 2.60A 3.00A/15V 3.00A/15V 5.00A/16V 3.00A Time in Seconds 0.13A Percentage of rated current %