303 Series - Micro™/TR3 Subminiature Fuses

Brand: Littelfuse, Inc

The 303 Series are TR3, fast-acting type, 125V rated fuses designed in accordance to UL 248–14.
Features
  • Lead-free/RoHS Compliant
  • Reduced PCB space requirements
  • Direct solderable or plug-in versions
  • Internationally approved
  • Low internal resistance
  • Shock-safe casing
  • Vibration resistant

Specifications

Materials

  • Base/Cap: Black Thermoplastic Base Polyamide PA 6.6, UL 94V-0 Brass, Nickel-Plated Cap
  • Round Pins: Copper Alloy, Tin-Plated

Lead Pull Strength

  • 10 N (IEC 60068-2-21)

Solderability

  • 260° C, ≤ 3 s. (Wave)
  • 350° C, ≤ 1 s. (Soldering Iron)

Soldering Heat Resistance

  • 260° C, 10 s. (IEC 60068-2-20)
  • 350° C, 3 s. (Soldering Iron)

Operating Temperature

  • -25° C to +70° C (Consider De-Rating)

Climatic Category

  • -25° C/+70° C/21 days (IEC 60068-1-3)

Stock Conditions

  • +10° C to +60° C RH, ≤ 75 % Yearly Average, Without dew

Vibration Resistance

  • 24 cycles at 15 minutes each (IEC 60068-6)
  • 10-60 Hz at 0.75 mm Amplitude
  • 60 - 2000 Hz at 10 g acceleration

Approvals

  • UL
  • CSA

  • Battery Chargers
  • Consumer Electronics
  • Power Supplies
  • Industrial Controller
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