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Littelfuse 0451003MRL Fast-Acting Surface Mount Fuse

The Littelfuse Nano[2] SMF Fuse is a compact, wire-in-air surface mount fuse ideal for secondary-side over-current protection in a variety of applications. Its small size and fast-acting characteristics make it suitable for PCB designs utilizing surface mount technology. This fuse offers a wide range of current ratings, is RoHS compliant, and operates effectively across a broad temperature range. Common applications include notebook PCs, telecom systems, LCD/PDP TVs, and power supplies.

Authorized Distributors
Source:Newark
Part No:0451003.MRL
Stock:12
Inv Date:05-28-2026
Price: Unit price: $2.87
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Source:DigiKey
Part No:0451003.MRL
Stock:867
Inv Date:05-28-2026
Price: Unit price: $2.47
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Part No:0451003.MRL
Stock:21
Inv Date:05-28-2026
Price: Unit price: $1.52
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Part No:0451003.MRL
Stock:0
Inv Date:05-28-2026
Price: Unit price: $0.831
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Part No:0451003.MRL
Stock:0
Inv Date:05-28-2026
Price: Unit price: $0.831
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Part No:0451003.MRL
Stock:25000
Inv Date:05-28-2026
Price: Unit price: $0.455
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Source:Arrow EU
Part No:0451003.MRL
Stock:40000
Inv Date:05-29-2026
Price: N/A
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Part No:0451003.MRL
Stock:9000
Inv Date:05-29-2026
Price: N/A
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Littelfuse 0451003MRL Fast-Acting Surface Mount Fuse Specifications:

  • Agency Approvals: E10480 (6.3A - 15A), LR29862 (62mA - 15A), PS NBK030205-E10480B (1A - 5A), E NBK101105-E184655 (6.3A - 10A), E10480 (62mA - 5A)
  • Ampere Rating: 62mA - 15A
  • Opening Time: 1/16 –15 (4 hours), 1/16 –10 (5 sec), 12 –15 (20 sec)
  • Body Material: Ceramic
  • Termination Material: Gold-Plated Caps / Sn-dipped Silver Plated
  • Operating Temperature: -55°C to 125°C
  • Moisture Sensitivity Level: Level 1
  • Insulation Resistance: 10,000 ohms minimum
  • Interrupting Rating: 5.5000 A @ 125VAC/VDC
  • Resistance: 0.00019 Ohms (at 62mA)
  • Soldering Parameters (Pb-Free): Preheat: 150°C min, 200°C max, 60-120 secs. Reflow: 217°C (Liquidus), 60-90 secs, Peak: 260°C (+/- 5°C)
  • Average Time Current Curves: Refer to datasheet for detailed curves

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Frequently Asked Questions

Where can I buy Littelfuse 0451003MRL?

You can click on the BUY or RFQ button to purchase 0451003MRL from an authorized Littelfuse distributor.

How do I troubleshoot issues or seek technical support for part 0451003MRL?

You can download the 0451003MRL datasheet or visit the Littelfuse website for support.

Who is the manufacturer of 0451003MRL?

Littelfuse

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