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1812L050PRT Littelfuse 1812L050PRT is a polymeric PTC resettable fuse rated for 15V DC with 500mA hold current and 100A maximum fault current in a compact 1812 surface mount package.
Mfr Part #:

1812L050PRT

Available from 1 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
Littelfuse 1812L050PRT is a polymeric PTC resettable fuse rated for 15V DC with 500mA hold current and 100A maximum fault current in a compact 1812 surface mount package.
Total Stock: 975 pcs

1812L050PRT Available from 1 distributors

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1812L050PRT Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Current
Halogen Free
Hold Current
Length
Max Current
Max Voltage
Mounting Type
Operating Temperature
Package / Case
Power Dissipation
Product Series
Resistance
Resistance - Initial (R Min)
Resistance - Post Trip (R_1max)
Tape & Reel
Thickness
Thickness (Max)
Time to Trip
Trip Current
Type
Voltage
Width

1812L050PRT Description

Short technical summary and product information.

The Littelfuse 1812L050PRT is a PolySwitch resettable PPTC (positive temperature coefficient) overcurrent protection device from the 1812L series. It is designed for surface mount applications where resettable protection is required, eliminating the need for replacement after a fault event.

 

Key electrical specifications include a hold current of 500 mA, a trip current of 1 A, a maximum voltage rating of 15 V DC, and a maximum interrupt current of 100 A. Typical power dissipation is 0.8 W. The device has an initial resistance of 150 mΩ and a post-trip resistance of 1 Ω. The time to trip at 8 A is 150 ms.

 

The 1812L050PRT is housed in a standard 1812 (4532 metric) concave surface mount package with dimensions of 4.55 mm length, 3.24 mm width, and 0.75 mm thickness. It operates over a temperature range of -40°C to 85°C. The device is RoHS compliant, lead-free, and halogen-free per the manufacturer's datasheet.

1812L050PRT Quick Information

Product Type: PTC Resettable Fuse
Series: 1812L
Canonical Name: Littelfuse 1812L Series PTC Resettable Fuse, 500mA Hold, 15V, 1812 Package
Subcategory: Surface Mount PTC

1812L050PRT Compliance

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

1812L050PRT Features

  • 500 mA hold current rating.
  • 15 V DC maximum voltage rating.
  • 100 A maximum fault current.
  • Surface mount 1812 package.
  • RoHS compliant and halogen-free.

1812L050PRT Applications

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

1812L050PRT FAQs

7 frequently asked questions generated from this part’s specifications.
What is the hold current of the 1812L050PRT?

The hold current is 500 mA (0.5 A).

What is the maximum voltage rating?

The maximum voltage is 15 V DC.

What is the trip current?

The trip current is 1 A.

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.

What is the time to trip?

The time to trip at 8 A is 150 ms.

Is the 1812L050PRT RoHS compliant?

The datasheet states RoHS compliance, but this has not been independently verified.

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