SC250-020 SOCAY | Alldatasheet
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Radial Lead Resettable Polymer PTCs Revision September 12, 2013 2 / 5 @ SOCAY Electronics Co., Ltd. 2013 Specifications are subject to change without notice. Please refer to www.socay.com for current information. SC250 Series SOCAY Electronics Co., Ltd. www.socay.com I hold= Hold current: maximum current device will pass without tripping in 25°C still air. I trip= Trip current: minimum current at which the device will trip in 25°C still air. V max= Maximum voltage device can withstand without damage at rated current (Imax) I max= Maximum fault current device can withstand without damage at rated voltage (Vmax) Pdtyp.= Power dissipated from device when in the tripped state at 25°C 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 25°C measured one hour after tripping. Caution: Operation beyond the specified rating may result in damage and possible arcing and flame. 0.48 0.25 Ambient Operation Temperature -40°C -20°C 0°C 25°C 40°C 50°C 60°C 70°C 85°C Part Number Hold Current (A) Temperature Rerating Chart – I hold (A)
Radial Lead Resettable Polymer PTCs Revision September 12, 2013 3 / 5 @ SOCAY Electronics Co., Ltd. 2013 Specifications are subject to change without notice. Please refer to www.socay.com for current information. SC250 Series SOCAY Electronics Co., Ltd. www.socay.com A0=SC250-020 A=SC250-030 B=SC250-040 C=SC250-050 D=SC250-060 E=SC250-080 F=SC250-120S G=SC250-160 H=SC250-200C I=SC250-250 J=SC250-300 K=SC250-330 L=SC250-400 M=SC250-500 N=SC250-550 O=SC250-600 P=SC250-650 Q=SC250-750 R=SC250-800 S=SC250-900 T=SC250-1000C U=SC250-1100 V=SC250-1250C W=SC250-1350 X=SC250-1600 Y=SC250-1850 Z=SC250-2000 Test Test Conditions Accept/Reject Criteria Resistance In still air @25±2°C Rmin≤R≤Rmax Hold Current 60 min, at Ihold, In still air @25±2°C No trip Time to Trip Specified current, Vmax, @25±2°C T≤Maximum Time To Trip Trip Cycle Life Vmax, Imax,100 cycles No arcing or burning Trip Endurance Vmax,24hours No arcing or burning Pre-Heating Zone Refer to the condition recommended by the manufacturer. Max. ramping rate should not exceed 4°C/Sec Soldering Zone Max. solder temperature should not exceed 260°C Cooling Zone Cooling by natural convection in air Test Procedures and Requirement Soldering Parameters Part Numbering Part Marking Average Time Current Curves Temperature Rerating Curve Current in Amperes Time in Seconds Percentage of Rated Current Temperature (°C)
Radial Lead Resettable Polymer PTCs Revision September 12, 2013 4 / 5 @ SOCAY Electronics Co., Ltd. 2013 Specifications are subject to change without notice. Please refer to www.socay.com for current information. SC250 Series SOCAY Electronics Co., Ltd. www.socay.com Lead Material 0.02-0.04A Tin-plated Copper clad steel 0.05-2.00A Tin-plated Copper Soldering Characteristics Solder ability per MIL-STD-202, Method 208E Insulating Material Cured, flame retardant epoxy polymer meets UL 94V-0 requirements. Device Labeling Marked with ‘SC’, voltage, current rating Figure1 Figure2 Figure3 Figure4 A B C D Lead (dia) Inches mm Inches mm Inches mm Inches mm Part Number Figure Inches mm Packaging (Bulk Pack) Dimensions Physical Specifications
Radial Lead Resettable Polymer PTCs Revision September 12, 2013 5 / 5 @ SOCAY Electronics Co., Ltd. 2013 Specifications are subject to change without notice. Please refer to www.socay.com for current information. SC250 Series SOCAY Electronics Co., Ltd. www.socay.com A B C D Lead (dia) Inches mm Inches mm Inches mm Inches mm Part Number Figure Inches mm Packaging (Bulk Pack) u This product should not be used in an application where the maximum interrupt voltage or maximum interrupt current in a fault condition, Operation beyond the maximum rating or improper use may result in device damage and possible electrical arcing and flame. u A PPTC device is not a fuse, It is a nonlinear thermistor that limits current, Because under a fault condition all PPTC devices go into a high resistance state but not open circuit hazardous voltage may be present at PPTC. u The devices are intended for protection against occasional over-current or over-temperature fault conditions and should not be used when repeated fault conditions or prolonged trip events. u In most application, power must be removed and the fault condition cleared in order to reset a PPTC device. u PPTC devices are not recommended to be installed in applications where the device is constrained such that its PPTC properties are inhibited, for example in rigid potting materials or Add devices surface coating, Bundled devices ontology, which lack adequate clearance to accommodate device expansion. u Contamination on of the PPTC material with certain silicone-based oils or some aggressive solvents can adversely impact the performance of the devices. For example, Organic solvents to cleaning. Dimensions (Continue) Warning