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0251.500NRT1L Board mount fuse rated 500mA at 125VAC/VDC with fast blow response time. Axial lead package for through hole mounting.
Mfr Part #:

0251.500NRT1L

Available from 2 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
Board mount fuse rated 500mA at 125VAC/VDC with fast blow response time. Axial lead package for through hole mounting.
Total Stock: 48,252 pcs

0251.500NRT1L Available from 2 distributors

Authorised
Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
45,200 pcs
45200 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
3,052 pcs
3052 pcs On Request 1 On Request On Request On Request On Request On Request

0251.500NRT1L Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Approval Agency
Breaking Capacity
Breaking Capacity @ Rated Voltage
Cold Resistance
Current Rating
Current Rating (Amps)
Failure Rate
Fuse Type
Lead Style
Medical Grade
Melting I²t
Mounting Type
Operating Temperature
Package / Case
Response Time
Size
Size / Dimension
Tape & Reel
Termination Style
Voltage Drop
Voltage Rating

0251.500NRT1L Description

Short technical summary and product information.

The Littelfuse 0251.500NRT1L is a 251 series PICO II very fast-acting fuse designed for secondary protection in space-constrained applications. It is rated for 500mA at 125VAC/VDC with a breaking capacity of 50A AC and 300A DC. The fuse features a fast blow response time with a melting I²t of 0.0598 A²s. It is housed in an axial lead package with a diameter of 0.110" and length of 0.280", suitable for through hole mounting. The operating temperature range is -55°C to 125°C. The fuse is approved by CCC, CSA, cURus, and TUV. The datasheet lists typical applications including flat-panel displays, LCD monitors, power supplies, and medical equipment. The cold resistance is 0.302 Ω with a voltage drop of 0.2165 V.

0251.500NRT1L Quick Information

Product Type: Board Mount Fuse
Series: 251
Canonical Name: Littelfuse 0251.500NRT1L 251 Series PICO II Very Fast-Acting Fuse, 500mA, 125V
Subcategory: Subminiature Fuse

0251.500NRT1L Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected
Lead Free: Yes

0251.500NRT1L Features

  • Rated 500mA at 125VAC/VDC.
  • Fast blow response time.
  • Axial lead through hole package.
  • Melting I²t of 0.0598 A²s.
  • Operating temperature from -55°C to 125°C.

0251.500NRT1L Applications

  • Used in flat-panel display TVs.
  • Suitable for LCD monitor backlight inverters.
  • Applied in power supply circuits.
  • Used in medical equipment.

0251.500NRT1L FAQs

7 frequently asked questions generated from this part’s specifications.
What is the current rating of the Littelfuse 0251.500NRT1L?

500 mA (0.5 A).

What is the voltage rating?

125 V.

What is the breaking capacity?

50 A AC and 300 A DC.

What is the response time?

Fast Blow.

What is the package type?

Axial lead package, 0.110" diameter x 0.280" length.

What is the melting I²t value?

0.0598 A²s.

What is the operating temperature range?

-55°C to 125°C.

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