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045102.5MRL Surface mount fuse rated 2.5A at 125VAC/VDC with fast blow response. Suitable for overcurrent protection in compact electronic designs.
Mfr Part #:

045102.5MRL

Available from 8 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
Surface mount fuse rated 2.5A at 125VAC/VDC with fast blow response. Suitable for overcurrent protection in compact electronic designs.
Total Stock: 5,768 pcs

045102.5MRL Available from 8 distributors

Authorised
Non-Authorised

045102.5MRL Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Approval Agency
Breaking Capacity @ Rated Voltage
Current Rating (Amps)
Fuse Type
Halogen Free
Height
Lead Style
Length
Maximum Operating Temperature
Medical Grade
Melting I²t
Military Grade
Mounting Type
Operating Temperature
Package / Case
Response Time
Tape & Reel
Voltage Rating
Width

045102.5MRL Description

Short technical summary and product information.

The Littelfuse 045102.5MRL is a 2.5A, 125VAC/VDC very fast-acting surface mount fuse from the Nano2 SMF 451/453 series. It features a compact 2-SMD square end block package measuring 6.10mm x 2.69mm x 2.69mm, ideal for space-constrained PCB designs. With a breaking capacity of 50A at rated voltage and a melting I²t of 1.029 A²s, it provides reliable overcurrent protection for secondary side circuits. The fuse is RoHS compliant and halogen free, with agency approvals including CSA, PSE, and UL. Its wide operating temperature range of -55°C to 125°C makes it suitable for various environments. Applications include notebook PCs, LCD displays, power supplies, networking equipment, and battery charging circuits.

045102.5MRL Quick Information

Product Type: Surface Mount Fuse
Series: 451/453 Series
Canonical Name: Littelfuse 045102.5MRL 2.5A 125V Fast Blow Surface Mount Fuse
Subcategory: Fast Blow Fuse

045102.5MRL Compliance

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

045102.5MRL Features

  • Rated 2.5A at 125VAC/VDC.
  • Very fast-acting response time.
  • 50A breaking capacity at rated voltage.
  • Surface mount 2-SMD square end block.
  • RoHS compliant and halogen free.

045102.5MRL Applications

  • Used in notebook PC and LCD TV circuits.
  • Ideal for power supply overcurrent protection.
  • Suitable for networking and telecom equipment.
  • Protects battery charging circuits.
  • Applied in industrial control systems.

045102.5MRL FAQs

7 frequently asked questions generated from this part’s specifications.
What is the current rating of the 045102.5MRL fuse?

2.5A.

What is the voltage rating?

125VAC/VDC.

What is the breaking capacity?

50A at 125VAC/VDC.

What is the response time?

Fast blow (very fast-acting).

What is the package type?

2-SMD, square end block.

What is the operating temperature range?

-55°C to 125°C.

What agency approvals does this fuse have?

CSA, PSE, UL.

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