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LR4-550F

Product Status| Activei
PTC LR4_550F Image

LR4-550F

LR4-550F | Series: LR4
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Littelfuse PolySwitch, a pioneer of polymeric positive temperature coefficient (PPTC) resettable devices, offers several material platforms to help protect battery applications. The high trip temperature, broad range of hold current ratings, and high voltage ratings available, combined with automotive qualifications are a unique combination for the LR4 series

PropertyValue
IH (A)
5.5
Trip Current (A)
10.5
Max Voltage Rating (V)
20
Max Fault Current Rating (A)
100
PDMAX (W)
2.8
RMIN (Ω)
0.009
Resistance (Max) (Ω)
0.016
R1max (Ω)
0.022
Max Time to Trip Time (Sec)
5
RTYP (Ω)
0.013
Activation Temperature (Typical) (°C)
125
Interrupt Current Max
100
Max Operating Temperature (°C)
Not Applicable
  • Qualified to AEC-Q200 for automotive applications
  • Current ratings from 1.9A to 13A
  • Voltage ratings from 15 V to 20 V
  • Broad range of resettable devices available
  • Low-resistance devices increase battery operating time
  • Halogen-free and RoHS compliant
  • Compatible with high-volume electronics assembly
  • UL Recognized to UL 1434
  • CSA Certified to CSA TIL No. CA-3A
  • TUV Certified to EN 60730-1

LR4-550F Applications

Highlights Section

  • Rechargeable batteries for mobile devices
  • E-call systems
  • Vacuum cleaner
  • Power tools
  • Portable medical devices

LR4-550F Resources

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Part NumberPart DescriptionRoHSPb-FreeRoHS (2015/863/EU) CertificateREACH (SVHCs) DeclarationREACH (SVHCs)Halogen FreeIPC-Material Declaration
RF1545-000LR4-550FRoHS6/13/2017Pb-Free6/13/2017Pdf IconCoC_RoHS10_RF1545-000_LR4-550FPdf IconREACH_SVHC Declaration_RF1545-000 (LR4-550F)Does Not ContainYes6/13/2017Pdf IconIPC_RF1545-000 (LR4-550F)

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