PolySwitch Resettable PPTCs Line-Voltage-Rated Devices RoHS Line-Voltage-Rated Devices Description Littelfuse PolySwitch line-voltage-rated (LVR) devices help protect electric motors and transformers used in commercial and home appliances from damage caused by mechanical overloads, overheating, stall, lost neutral and other potentially harmful conditions. The LVR line-voltage product line of polymeric positive temperature coefficient (PPTC) devices includes components that are rated for line voltages of 120V , AC V and 240V , V for up to 2A of operating current at DC AC DC 20C. They help protect against damage caused by both overcurrent surges and overtemperature faults. They also offer low resistance and are compatibly sized with fuse Agency Approvals solutions. Agency Agency File Number E74889 Features 78165 RoHS and Halogen-free Fast time-to-trip compliant 72161781 Low resistance Broadest range of radi- UL Recognized to UL 1434 CQC16001159721 al-leaded resettable devic- CSA Approved to CSA TIL es No. CA-3A available in the industry Applications TUV Approved to EN Current ratings from 50mA 60730-1 to 2A Electromagnetic loads Satellite video receivers CQC Approved to GB Line voltage rating of Game machines Security and fire alarm systems 8898, GB/T 7153, GB 120V , V and 240V , AC DC AC Industrial controls Test and measurement 14536.1 V DC equipment Lighting ballasts Transformers Loudspeakers Additional Information USB hubs, ports and Medical equipment peripherals Motors, fans and blowers Intelligent appliance POS equipment Robotic machine Datasheet Resources Samples Electrical Characteristics V I MAX MAX Max Time-to- Ordering Lead Size I I P R R R H T D Typ MIN MAX 1MAX Part trip 2 Part Operating Interrupt Interrupt (mm / Number Number AWG) (A) (A) (V , V ) (V , V ) (A) (W) (A) (s) () () () AC DC AC DC LVR 240 265 1.0 LVR005NK RF1251-000 0.05 0.12 0.9 0.25 10.0 18.5 31.0 65.0 0.51/24 LVR005NS RF1245-000 120 135 20.0 240 265 1.2 LVR008NK RF1252-000 0.08 0.19 0.9 0.40 10.0 7.4 12.0 26.0 0.51/24 LVR008NS RF1246-000 120 135 20.0 2020 Littelfuse, Inc. Specifications are subject to change without notice. Revised: GD. 12/20/20 PolySwitch Resettable PPTCs Line-Voltage-Rated Devices Electrical Characteristics (Contd) V I MAX MAX Max Time-to- Ordering Lead Size I I P R R R H T D Typ MIN MAX 1MAX Part trip 2 Part Operating Interrupt Interrupt (mm / Number Number AWG) (A) (A) (V , V ) (V , V ) (A) (W) (A) (s) () () () AC DC AC DC LVR 240 265 1.2 LVR012K 122814-000 0.12 0.30 1.0 0.60 15.0 3.0 6.5 12.0 0.51/24 LVR012S D63011-000 120 135 20.0 240 265 2.0 LVR016K 887538-000 0.16 0.37 1.4 0.80 15.0 2.5 4.1 7.8 0.51/24 LVR016S 224962-000 120 135 20.0 240 265 3.5 LVR025K 657076-000 0.25 0.56 1.5 1.25 18.5 1.3 2.1 3.8 0.64/22 LVR025S 543478-000 120 135 20.0 240 265 4.5 LVR033K F74007-000 0.33 0.74 1.7 1.65 21.0 0.77 1.24 2.60 0.64/22 LVR033S F71843-000 120 135 20.0 240 265 5.5 LVR040K 598204-000 0.40 0.90 2.0 2.00 24.0 0.60 0.97 1.90 0.64/22 LVR040S 336638-000 120 135 20.0 240 265 7.0 LVR055K F17956-000 0.55 1.25 3.4 2.75 26.0 0.45 0.73 1.45 0.81/20 LVR055S 758968-000 120 135 20.0 LVR075K-240 RF4176-000 0.75 1.50 240 265 7.5 2.6 3.75 18.0 0.316 0.483 0.839 0.81/20 LVR075S-240 RF3174-000 LVR100K-240 RF4177-000 1.00 2.00 240 265 10.0 2.9 5.00 21.0 0.218 0.334 0.580 0.81/20 LVR100S-240 RF3175-000 LVR125K-240 RF4178-000 1.25 2.50 240 265 12.5 3.3 6.25 23.0 0.165 0.253 0.440 0.81/20 LVR125S-240 RF3176-000 LVR200K-240 RF4179-000 2.00 4.00 240 265 20.0 4.5 10.00 28.0 0.089 0.131 0.221 0.81/20 LVR200S-240 RF3177-000 Notes: I : Hold current: maximum current device will pass without interruption in 20C still air. H I : Trip current: minimum current that will switch the device from low resistance to high resistance in 20C still air. T V Operating : Maximum continuous voltage device can withstand without damage at rated current. MAX V Interrupt : Under specified conditions this is the highest voltage that can be applied to the device at the maximum interrupt current. MAX I Interrupt : Maximum fault current device can withstand without damage at rated voltage. MAX P : Power dissipated from device when in the tripped state in 20C still air. D R : Minimum resistance of device as supplied at 20C unless otherwise specified. MIN R : Maximum resistance of device as supplied at 20C unless otherwise specified. MAX R : Maximum resistance of device when measured one hour post trip at 20C unless otherwise specified. 1MAX * Electrical characteristics determined at 25C. See Application Limitations on next page. 2020 Littelfuse, Inc. Specifications are subject to change without notice. Revised: GD. 12/20/20