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0459.500UR Littelfuse 0459.500UR is a 500mA, 125V fast-blow (very fast-acting) surface mount fuse. It features a 2-SMD J-Lead package and is RoHS compliant.
Mfr Part #:

0459.500UR

Available from 2 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
Littelfuse 0459.500UR is a 500mA, 125V fast-blow (very fast-acting) surface mount fuse. It features a 2-SMD J-Lead package and is RoHS compliant.
Total Stock: 786 pcs

0459.500UR 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
523 pcs
523 pcs On Request 1 On Request On Request 2006+ On Request On Request
Non-Authorised Inventory information
263 pcs
263 pcs On Request 1 On Request On Request On Request On Request On Request

0459.500UR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Approval Agency
Body Material
Breaking Capacity
Breaking Capacity @ Rated Voltage
Cold Resistance
Current Rating
Current Rating (Amps)
Fuse Type
Height
Industrial Grade
Lead Style
Length
Melting I²t
Mounting Type
Operating Temperature
Package / Case
Packaging Type
Response Time
Standard Package Quantity
Tape & Reel
Termination Material
Voltage Rating
Width

0459.500UR Description

Short technical summary and product information.

The Littelfuse 0459.500UR is a 500 mA, 125 V very fast-acting surface mount fuse from the 459 Series. It is based on Littelfuse PICO fuse technology and is designed for board-level overcurrent protection. The fuse has a breaking capacity of 50 A AC and 300 A DC. Its fast-blow response time provides rapid protection against short circuits and overcurrent conditions.

 

This fuse is housed in a 2-SMD J-Lead package with dimensions of 7.24mm x 4.32mm x 3.05mm. The body is made of molded thermoplastic, and the terminations are 100% tin-plated copper, ensuring good solderability. The operating temperature range is -55°C to 125°C. The nominal cold resistance is 0.3020 Ω, and the nominal melting I²t is 0.0546 A²s.

 

The device is RoHS compliant and has a Moisture Sensitivity Level (MSL) of 1 (unlimited). It has agency approvals from CSA and UL. Typical applications include wireless basestations, network equipment, and telecom equipment.

0459.500UR Quick Information

Product Type: Surface Mount Fuse
Series: 459
Canonical Name: Littelfuse 459 Series PICO SMF Very Fast-Acting Surface Mount Fuse, 500mA, 125V
Subcategory: Surface Mount Fuse

0459.500UR Compliance

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

0459.500UR Features

  • Very fast-acting response time.
  • Rated 500mA at 125VAC/VDC.
  • Surface mount 2-SMD J-Lead package.
  • RoHS compliant with MSL 1 rating.
  • CSA and UL agency approved.

0459.500UR Applications

  • Protect wireless basestation power circuits.
  • Used in networking and telecom equipment.
  • Overcurrent protection for board-level designs.
  • Suitable for space-constrained applications.

0459.500UR FAQs

6 frequently asked questions generated from this part’s specifications.
What is the current rating of the Littelfuse 0459.500UR?

The current rating is 500 mA.

What is the voltage rating of the 0459.500UR?

The voltage rating is 125 V AC/DC.

What is the breaking capacity of this fuse?

The breaking capacity is 50 A AC and 300 A DC at the rated voltage.

Does the 0459.500UR have a fast-blow or slow-blow response?

It has a fast-blow (very fast-acting) response time.

What package does the 0459.500UR come in?

It comes in a 2-SMD, J-Lead surface mount package.

What is the operating temperature range?

The operating temperature range is -55°C to 125°C.

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