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nanoSMD450LR Dataheets PDF



Part Number nanoSMD450LR
Manufacturers Littelfuse
Logo Littelfuse
Description Low Rho SMD
Datasheet nanoSMD450LR DatasheetnanoSMD450LR Datasheet (PDF)

PolySwitch® Resettable PTCs Surface Mount > LoRho Series Low Rho SMD Series Agency Approvals AGENCY AGENCY FILE NUMBER 078165 * E74889 * R 72161796 * * - See Electrical Characteristic Table for approved part numbers. Description PolySwitch® low resistivity SMD (surface-mount device) is a versatile device well suited for general applications which have space-constrained, low power dissipation and high environmental reliability requirements. The devices can help provide both overcurrent and ov.

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PolySwitch® Resettable PTCs Surface Mount > LoRho Series Low Rho SMD Series Agency Approvals AGENCY AGENCY FILE NUMBER 078165 * E74889 * R 72161796 * * - See Electrical Characteristic Table for approved part numbers. Description PolySwitch® low resistivity SMD (surface-mount device) is a versatile device well suited for general applications which have space-constrained, low power dissipation and high environmental reliability requirements. The devices can help provide both overcurrent and overtemperature protection for battery pack PCMs (protection circuit modules), circuit PCBA and signal/power I/O interface. The resettable feature ensures the device will “Trip” and protect the application during the faults and yet regain the functions once the error is removed. Features • Current ratings from 1.75 to 6.0A • Maximum electrical rating: 6VDC and short circuit current 50A • Halogen free (Br≤900ppm, Cl≤900ppm, and Br+Cl≤1500ppm) • Ultra low internal resistance • Automatic Reset • RoHS Complaint, lead-free and halogen free Applications • Mobile and smart phones • Wearable devices • Portable game console • VR/AR head mount display (HMD) • Tablets and eBook • Portable printer and projector • Li-Ion battery Powered Mobile Devices • USB Connection Ports © 2017 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 09/21/17 PolySwitch® Resettable PTCs Surface Mount > LoRho Series Electrical Characteristics Part Number IH IT (A) (A) nanoSMDLR Series Size 3216mm/1206mils nanoSMD175LR 1.75 5.00 nanoSMD200LR 2.00 9.50 nanoSMD270LR 2.70 6.30 nanoSMD350LR 3.50 6.30 nanoSMD380LR 3.80 8.00 nanoSMD400LR 4.00 8.00 nanoSMD450LR 4.50 10.00 nanoSMD500LR-D 5.00 10.00 nanoSMD550LR 5.50 11.00 nanoSMD600LR 6.00 12.00 microSMDLR Series Size 3225mm/1210mils microSMD190LR 1.90 4.90 microSMD200LR 2.00 5.00 microSMD250LR-A 2.50 5.20 microSMD350LR-D 3.50 9.00 microSMD380LR 3.80 9.00 microSMD400LR 4.00 9.00 microSMD450LR 4.50 9.00 microSMD500LR 5.00 10.00 microSMD550LR 5.50 11.00 microSMD600LR 6.00 12.00 VMAX (VDC) IMAX (A) 6 50 6 50 6 50 6 50 6 50 6 50 6 50 6 50 6 50 6 50 6 50 6 50 6 50 6 50 6 50 6 50 5 50 6 50 5 50 6 50 PD MAX (W) Max Time-to-Trip (A) (S) 1.00 9.50 1.00 1.00 9.50 3.00 1.00 8.00 5.00 1.00 8.00 5.00 1.00 9.50 10.00 1.00 20.00 2.00 1.00 25.00 2.00 1.00 25.00 2.00 1.00 25.00 2.00 1.00 25.00 2.00 1.00 9.50 4.00 1.00 9.50 4.00 1.00 9.50 5.00 1.00 9.50 10.00 1.00 9.50 10.00 1.00 9.50 10.00 1.00 25.00 2.00 1.00 25.00 2.00 1.00 25.00 2.00 1.00 25.00 2.00 RMIN (^) 0.008 0.006 0.005 0.004 0.004 0.004 0.002 0.002 0.002 0.002 0.006 0.006 0.005 0.0025 0.0025 0.0025 0.002 0.002 0.002 0.002 R1MAX (v) 0.034 0.024 0.018 0.018 0.014 0.010 0.008 0.008 0.007 0.007 0.021 0.021 0.018 0.011 0.009 0.0099 0.008 0.007 0.0065 0.0063 Agency Recognition UL, CSA, TÜV UL, CSA UL, CSA, TÜV UL, CSA, TÜV UL TÜV UL, TÜV UL, CSA, TÜV LR2 UL,TÜV UL, CSA UL, CSA UL, CSA UL, CSA, TÜV UL, CSA UL,TÜV UL, TÜV UL UL, TÜV Temperature Rerating Ambient OperatingTemperature Part Number -40°C -20°C 0°C 20°C 25°C 40°C 50°C 60°C nanoSMDLR Series Size 3216mm/1206mils nanoSMD175LR 3.00 2.60 nanoSMD200LR 3.60 3.20 nanoSMD270LR 4.00 3.50 nanoSMD350LR 5.50 4.80 nanoSMD380LR 5.75 5.15 nanoSMD400LR 5.80 5.20 nanoSMD450LR 6.69 6.00 nanoSMD500LR-D 7.40 6.60 nanoSMD550LR 7.96 7.19 nanoSMD600LR 8.50 7.80 microSMDLR Series Size 3225mm/1210mils microSMD190LR 3.40 2.90 microSMD200LR 3.50 3.00 microSMD250LR-A 4.40 3.80 microSMD350LR-D 5.40 4.75 microSMD380LR 5.71 5.04 microSMD400LR 5.91 5.24 microSMD450LR 7.00 6.20 microSMD500LR 7.40 6.60 microSMD550LR 7.96 7.19 microSMD600LR 8.50 7.80 2.20 2.80 3.00 4.00 5.00 4.60 5.40 6.00 6.50 7.00 2.40 2.50 3.20 4.00 4.00 4.70 5.50 6.00 7.00 7.00 1.75 1.70 1.40 1.20 1.00 2.00 1.90 1.80 1.60 1.40 2.70 2.60 2.20 2.00 1.60 3.50 3.30 2.70 2.30 1.90 3.80 3.74 3.06 2.60 2.20 4.00 3.90 3.40 3.10 2.82 4.50 4.40 3.80 3.50 3.30 5.00 4.90 4.60 4.20 3.70 5.50 5.30 4.80 4.30 3.80 6.00 5.72 4.94 4.42 3.90 1.90 1.80 1.40 1.15 0.90 2.00 1.90 1.50 1.25 1.00 2.50 2.40 1.90 1.50 1.25 3.50 3.20 2.70 2.40 2.00 3.80 3.52 3.01 2.67 2.50 4.00 3.72 3.21 2.87 2.50 4.50 4.40 3.80 3.50 3.20 5.00 4.90 4.60 4.20 3.70 5.50 5.46 4.88 4.49 4.10 6.00 5.70 5.00 4.50 3.90 Note: The temperature rerating data is for reference only. Please contact Littelfuse technical support for detail temperature rerating information 70°C 0.80 1.20 1.40 1.60 1.90 2.52 2.75 3.30 3.40 3.50 0.65 0.75 1.00 1.70 2.00 2.20 2.75 3.30 3.50 3.50 80°C 0.60 1.00 1.20 1.40 1.60 2.23 2.35 3.00 3.10 3.20 0.40 0.50 0.65 1.35 1.66 1.86 2.35 3.00 3.20 3.10 85°C 0.50 0.80 1.10 1.30 1.50 2.10 2.16 2.80 2.90 3.00 0.28 0.38 0.50 1.20 1.49 1.69 2.16 2.80 3.00 2.90 © 2017 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 09/21/.


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