452 Series - NANO Slo-Blo® Subminiature Surface Mount Fuse

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The NANO2 Slo-Blo fuse has enhanced inrush withstand characteristics over the NANO2 Fast-Acting fuse. The unique time delay feature of this fuse design helps solve the problem of nuisance "opening" by accommodating inrush currents that normally cause a fast-acting fuse to open.


  • Time-Lag (Slo-Blo)
  • Small size 
  • Wide range of current rating available (375mA to 12A)
  • Wide operating temperature range
  • Low temperature de-rating
  • RoHS compliant
  • Halogen Free

Access specifications, certifications, check availability and order parts below

Catalog #Amps (A)VDC (V)VAC (V)Nominal Melting I2T (A2sec)Resistance
Interrupting RatingBodyMin Operating Temp (°C)Max Operating Temp (°C)Marking CodeMSLOpeningSizeStockSamplesCompare
0452.3750.3751251250.1011.2300A@32VDCCeramic-55125LF T 375mA1Slo-Blo/Time Lag (T)/Time Delay6.10 x 2.69mmCheckOrder
0452.5000.51251250.240.7300A@32VDCCeramic-55125LF T 500mA1Slo-Blo/Time Lag (T)/Time Delay6.10 x 2.69mmCheckOrder
0452.7500.751251250.9040.36300A@32VDCCeramic-55125LF T 750mA1Slo-Blo/Time Lag (T)/Time Delay6.10 x 2.69mmCheckOrder
0452001.11251251.980.225300A@32VDCCeramic-55125LF T 1A1Slo-Blo/Time Lag (T)/Time Delay6.10 x 2.69mmCheckOrder
0452002.21251258.20.0625300A@32VDCCeramic-55125LF T 2A1Slo-Blo/Time Lag (T)/Time Delay6.10 x 2.69mmCheckOrder
0452003.312512520.160.034300A@32VDCCeramic-55125LF T 3A1Slo-Blo/Time Lag (T)/Time Delay6.10 x 2.69mmCheckOrder
0452004.412512534.40.0186300A@32VDCCeramic-55125LF T 4A1Slo-Blo/Time Lag (T)/Time Delay6.10 x 2.69mmCheckOrder
0452005.512512553.720.0136300A@32VDCCeramic-55125LF T 5A1Slo-Blo/Time Lag (T)/Time Delay6.10 x 2.69mmCheckOrder
0452007.76072123.830.0105Ceramic-55125LF T 7A1Slo-Blo/Time Lag (T)/Time Delay6.10 x 2.69mmCheckOrder
0452008.86072137.340.0088Ceramic-55125LF T 8A1Slo-Blo/Time Lag (T)/Time Delay6.10 x 2.69mmCheckOrder
045201.51.51251253.650.093300A@32VDCCeramic-55125LF T 1.5A1Slo-Blo/Time Lag (T)/Time Delay6.10 x 2.69mmCheckOrder
0452012.126072260.460.0061Ceramic-55125LF T 12A1Slo-Blo/Time Lag (T)/Time Delay6.10 x 2.69mmCheckOrder
045202.52.5125125150.045300A@32VDCCeramic-55125LF T 2.5A1Slo-Blo/Time Lag (T)/Time Delay6.10 x 2.69mmCheckOrder
045203.53.512512526.530.0224300A@32VDCCeramic-55125LF T 3.5A1Slo-Blo/Time Lag (T)/Time Delay6.10 x 2.69mmCheckOrder

452 454 TC Curver

EC611 Circuit Protection for Lithium Ion and Lithium Polymer Rechargeable Battery Applications

This application note summarizes how the increased use of Lithium-Ion and Lithium Polymer battery packs in applications where user safety is critical, the implementation of secondary protection circuits will ensure an unsurpassed level of safety with minimal cost impact.

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