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0472001.NRT1L
Part Number 0472001.NRT1L
Manufacturer Littelfuse Inc.
Description FUSE BRD MNT 1A 125VAC/VDC AXIAL
Quantity Available 30244 pcs new original in stock.
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Datasheets 0472001.NRT1L.pdf
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Technical Information of 0472001.NRT1L
Manufacturer Part Number 0472001.NRT1L Category Circuit Protection
Manufacturer Hamlin / Littelfuse Description FUSE BRD MNT 1A 125VAC/VDC AXIAL
Package / Case Axial Quantity Available 30244 pcs
Voltage Rating - DC 125 V Voltage Rating - AC 125 V
Size / Dimension 0.110" Dia x 0.280" L (2.80mm x 7.11mm) Series PICO® II 472
Response Time Slow Blow Package / Case Axial
Package Tape & Reel (TR) Operating Temperature -55°C ~ 125°C
Mounting Type Through Hole Melting I²t 0.9384
Fuse Type Board Mount (Cartridge Style Excluded) DC Cold Resistance 0.078 Ohms
Current Rating (Amps) 1 A Color -
Breaking Capacity @ Rated Voltage 50A Approval Agency UR
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0472001.NRT1L are New and Original in Stock, Find 0472001.NRT1L electronics components stock, Datasheet, Inventory and Price at Ariat-Tech.com Online, Order 0472001.NRT1L Littelfuse Inc. with warrantied and confidence from Ariat Technology Limitd. Ship via DHL/FedEx/UPS. Payment with Wire Transfer or PayPal is OK.
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Frequently Asked Questions

  • What does the slow-blow response time of the 0472001.NRT1L mean for its behavior in circuits subject to inrush currents? The slow-blow response time of the 0472001.NRT1L enables the fuse to remain intact during brief overcurrent events like those caused by inductive loads or power supply startup transients thereby preventing false activations while still interrupting faults that persist above the 1A threshold at 125V AC or DC.
  • How does the 125 V AC and 125 V DC voltage rating of the 0472001.NRT1L influence its compatibility with various power supply configurations? The dual 125 V AC/DC voltage rating of the 0472001.NRT1L makes it versatile for designs that may encounter either AC or DC voltages up to that level allowing engineers to use a single part without needing separate AC-only or DC-only fuses thus simplifying inventory and reducing potential compatibility issues in mixed-signal systems.
  • In what way does the 50A breaking capacity rating of the 0472001.NRT1L contribute to its effectiveness against short-circuit conditions? The 50A breaking capacity rating of the 0472001.NRT1L ensures that the fuse can safely interrupt fault currents up to 50A at rated voltage without exploding or failing in a way that could damage surrounding components which is critical for applications where fault currents might exceed normal operating levels but are still within the interrupting range.
  • How does the DC cold resistance of 0.078 Ohms in the 0472001.NRT1L affect heat generation and overall circuit efficiency? With a DC cold resistance of 0.078 Ohms the 0472001.NRT1L introduces a minimal voltage drop when carrying the 1A rated current resulting in low power dissipation which helps maintain system efficiency and reduces thermal stress on adjacent components in space-constrained designs.
  • What operating temperature range is specified for the 0472001.NRT1L and why is it important for design considerations? The 0472001.NRT1L is rated for operation from -55°C to 125°C providing a wide temperature window that accommodates both cold environments like refrigeration controls and hot conditions such as automotive under-hood electronics while ensuring material integrity over extended periods.
  • How does the physical size of the 0472001.NRT1L measuring 0.110 inches in diameter by 0.280 inches in length impact its PCB layout choices? The compact axial dimensions of the 0472001.NRT1L 0.110 inches Dia x 0.280 inches L facilitate easy through-hole insertion on PCBs with limited board space allowing designers to position it near sensitive components without occupying excessive real estate though careful consideration must be given to lead bending and stress relief to prevent mechanical failure.
  • Why might the 0472001.NRT1L be selected as an alternative to other similar fuses in the Littelfuse lineup such as the 0471001.NRT1L? The 0472001.NRT1L is often preferred when its specific axial package and slow-blow time delay provide better accommodation for the transient loads present in the application differing from the 0471001.NRT1L in form factor or response characteristics that might not fit the same assembly tolerances.
  • What are the key electrical differences between the 0472001.NRT1L and the 0471001.NRT1L that an engineer should evaluate during part selection? An engineer evaluating the 0472001.NRT1L against the 0471001.NRT1L would note differences in their respective I²t values and breaking capacities which directly influence how each handles fault energy and duration with the 0472001.NRT1L's 0.9384 A²s and 50A capacity providing a balance suited for lower-power circuits where higher energy tolerance could lead to overdesign.
  • How does the melting I²t of 0.9384 for the 0472001.NRT1L help in sizing protection for downstream components? The 0.9384 A²s melting I²t rating of the 0472001.NRT1L indicates the energy required to blow the fuse allowing designers to calculate the fault current duration it can withstand before opening thus protecting more sensitive circuits by ensuring the fuse acts after the protected device has had time to fail or isolate itself in scenarios involving short circuits or overloads.
  • For what types of applications is the 0472001.NRT1L best suited considering its through-hole mounting and slow-blow characteristics? The 0472001.NRT1L is particularly well-suited for consumer electronics and industrial control panels where through-hole components are standard and slow-blow behavior is needed to accommodate startup currents from transformers or motors but it may be less ideal for high-reliability automotive applications requiring faster response times or for communication systems demanding very low DC resistance.
  • What replacement strategy should be considered when migrating from an older fuse to the 0472001.NRT1L in a production design? When replacing legacy fuses with the 0472001.NRT1L engineers should verify that the new part's voltage rating physical footprint and temperature range match the original design's constraints as the 0472001.NRT1L's UR approval and RoHS compliance can support global manufacturing while its axial package requires planning for automated insertion equipment to maintain assembly yield.
  • How does the reliability of the 0472001.NRT1L compare to other board-mount fuses in terms of lifecycle and environmental factors? The reliability of the 0472001.NRT1L is enhanced by its UR agency listing and the material properties that ensure consistent performance across the -55°C to 125°C range making it a dependable choice for long-term deployments in equipment where fuse failure could lead to system downtime though its non-applicable MSL means it should be handled carefully in high-humidity environments to preserve solderability.
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