ITV9550 45A Series - Three-Terminal Surface Mount Battery Protectors

Series: ITV9550 45A
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ITV is a three-terminal surface mountable li-ion battery protector designed to guard against the damage caused by both overcurrent and overcharging. A fuse element is embedded to cut off the circuit when overcurrent issue happens. A heater is also directly embedded under the fuse element, it will generate heat to blow the fuse once overvoltage detected by IC or FET. 


  • Protection for both overcurrent and overvoltage
  • Low internal resistance
  • UL and TUV certification
  • Surface mount footprint
  • RoHS compliant and Halogen free


 Used as a protector in Li-ion battery pack

  • Vacuum cleaner
  • Power tools
  • E-scooter
  • E-bike
  • UPS

Access specifications, certifications, check availability and order parts below

Catalog #VOP(V)Vmax(Vdc)Ibreak(A)Max Operating Temp (°C)PolySwitch Internal NumberCells in SeriesIrated (A)Rfuse(mΩ)Rheater(Ω)Size Code (mm/in)Packaging
Check StockSamplesProduct
Partner ECAD ModelsStockSamplesCompare
ITV9550L12459.8~13.56212065ITV9550L1245MR3450.4~2.01.9~3.49550(3820)Tape & ReelYesYesProduct SpecificationITV9550L1245CheckOrder
ITV9550L144513.0~18.46212065ITV9550L1445MR4450.4~2.03.4~6.09550(3820)Tape & ReelYesYesProduct SpecificationITV9550L1445CheckOrder
ITV9550L204516.7~23.56212065ITV9550L2045MR5450.4~2.05.6~9.99550(3820)Tape & ReelYesYesProduct SpecificationITV9550L2045CheckOrder
ITV9550L304522.3~31.56212065ITV9550L3045MR6~7450.4~2.010.0~17.79550(3820)Tape & ReelYesYesProduct SpecificationITV9550L3045CheckOrder
ITV9550L404533.0~46.96212065ITV9550L4045MR9~10450.4~2.022.0~38.79550(3820)Tape & ReelYesYesProduct SpecificationITV9550L4045CheckOrder
ITV9550L504543.7~62.06212065ITV9550L5045MR12~14450.4~2.038.5~68.09550(3820)Tape & ReelYesYesProduct SpecificationITV9550L5045CheckOrder
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