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Littelfuse 0473003MRT1L Slo-Blo Fuse

The Littelfuse PICO II Slo-Blo fuse combines time delay characteristics with proven reliability. Designed for circuit protection, it offers a balance between allowing temporary current surges while quickly interrupting fault conditions. The fuse is RoHS compliant, indicating adherence to environmental standards, and is recognized by Underwriters Laboratories and CSA for safety and performance. Its applications span various industrial sectors where reliable circuit protection is essential, such as power supplies, lighting, and electronic equipment.

Authorized Distributors
Source:Newark
Part No:0473003.MRT1L
Stock:1
Inv Date:05-28-2026
Price: Unit price: $1.76
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Source:DigiKey
Part No:0473003.MRT1L
Stock:6288
Inv Date:05-28-2026
Price: Unit price: $1.20105
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Part No:0473003.MRT1L
Stock:0
Inv Date:05-28-2026
Price: Unit price: $1.82
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Part No:0473003.MRT1L
Stock:0
Inv Date:05-28-2026
Price: Unit price: $1.164
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Part No:0473003.MRT1L
Stock:0
Inv Date:05-28-2026
Price: Unit price: $1.164
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Part No:0473003.MRT1L
Stock:1000
Inv Date:05-28-2026
Price: Unit price: $0.77
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Part No:0473003.MRT1L
Stock:314
Inv Date:05-29-2026
Price: N/A
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Littelfuse 0473003MRT1L Slo-Blo Fuse Specifications:

  • Ampere Rating: 3A
  • Voltage Rating: 125V
  • Nominal Resistance Cold Ohms: 0.0380
  • Nominal Melting I2t A2 Sec: 21.0
  • % of Ampere Rating Opening Time: 100% - 4 hours (minimum), 200% - 1 second (minimum), 300% - 0.2 second (minimum), 800% - 0.02 second (minimum)
  • Interrupting Rating: 50 amperes at 125 VDC/VAC
  • Operating Temperature: -55°C to 125°C
  • Shock: MIL-STD-202, Method 213
  • Vibration: MIL-STD-202, Methods 201 & 204
  • Salt Spray: MIL-STD-202, Method 101
  • Insulation Resistance (After Opening): MIL-STD-202, Method 302
  • Resistance to Soldering Heat: MIL-STD-202, Method 210
  • Thermal Shock: MIL-STD-202, Method 107
  • Moisture Resistance: MIL-STD-202, Method 106
  • Materials: Encapsulated, Epoxy-Coated Body; Solder Coated Copper Wire Leads
  • Soldering Parameters Wave Solder: 260°C, 3 seconds maximum
  • Lead Pull Force: MIL-STD-202, Method 211

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Frequently Asked Questions

Where can I buy Littelfuse 0473003MRT1L?

You can click on the BUY or RFQ button to purchase 0473003MRT1L from an authorized Littelfuse distributor.

How do I troubleshoot issues or seek technical support for part 0473003MRT1L?

You can download the 0473003MRT1L datasheet or visit the Littelfuse website for support.

Who is the manufacturer of 0473003MRT1L?

Littelfuse

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