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1812L125/6PR PTC resettable fuse with 1.25A hold current and 2.5A trip current. Rated for 6V maximum voltage in a compact 1812 surface mount package.
Mfr Part #:

1812L125/6PR

Available from 2 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
PTC resettable fuse with 1.25A hold current and 2.5A trip current. Rated for 6V maximum voltage in a compact 1812 surface mount package.
Total Stock: 47,105 pcs

1812L125/6PR 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
46,485 pcs
46485 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
620 pcs
620 pcs On Request 1 On Request On Request 07+ On Request On Request

1812L125/6PR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Automotive Grade
Current
Halogen Free
Hold Current
Industrial Grade
Length
Max Current
Max Resistance
Max Voltage
Min Resistance
Mounting Type
Operating Temperature
Operating Temperature Range
Package / Case
Resistance
SVHC Present
Storage Temperature
Tape & Reel
Thickness
Thickness (Max)
Time to Trip
Trip Current
Type
Typical Power Dissipation
Voltage
Width

1812L125/6PR Description

Short technical summary and product information.

The Littelfuse 1812L125/6PR is a polymeric PTC resettable fuse designed for overcurrent protection in low-voltage applications. It features a hold current of 1.25A and a trip current of 2.5A, with a maximum voltage rating of 6V DC. The device can handle up to 100A fault current and has a typical power dissipation of 0.8W.

 

This surface mount component is housed in a compact 1812 (4532 Metric) concave package, measuring 4.55mm x 3.24mm x 0.75mm. It offers fast response with a time to trip of 400ms at 8A. The operating temperature range is -40°C to 85°C, making it suitable for a variety of environments.

 

Typical applications include USB peripherals, PCI cards, and game console port protection, as noted in the datasheet. The 1812L series is RoHS compliant and halogen-free, supporting lead-free soldering processes.

1812L125/6PR Quick Information

Product Type: PTC Resettable Fuse
Series: 1812L
Canonical Name: PTC Resettable Fuse, 1.25A Hold, 2.5A Trip, 6V, 1812 (4532 Metric)
Subcategory: Polymeric PTC Resettable Fuse

1812L125/6PR Compliance

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

1812L125/6PR Features

  • 1.25A hold current rating.
  • 2.5A trip current threshold.
  • 6V maximum voltage rating.
  • Surface mount 1812 package.
  • Fast 400ms trip time at 8A.

1812L125/6PR Applications

  • USB peripheral overcurrent protection.
  • PCI card port protection.
  • Game console port protection.
  • Motherboard plug-and-play protection.

1812L125/6PR FAQs

7 frequently asked questions generated from this part’s specifications.
What is the hold current of the 1812L125/6PR?

The hold current is 1.25A.

What is the trip current?

The trip current is 2.5A.

What is the maximum voltage rating?

The maximum voltage is 6V DC.

What is the maximum fault current the fuse can handle?

The maximum interrupt current is 100A.

What is the time to trip?

The time to trip is 400ms at 8A.

What is the package size?

The package is 1812 (4532 Metric) concave, surface mount.

What is the operating temperature range?

The operating temperature range is -40°C to 85°C.

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