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1812L050PR Littelfuse PolySwitch 1812L050PR is a resettable PTC fuse rated at 0.5A hold current, 1A trip current, with a maximum voltage of 15V DC. It comes in an 1812 (4532 Metric) surface mount package.
Mfr Part #:

1812L050PR

Available from 3 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
Littelfuse PolySwitch 1812L050PR is a resettable PTC fuse rated at 0.5A hold current, 1A trip current, with a maximum voltage of 15V DC. It comes in an 1812 (4532 Metric) surface mount package.
Total Stock: 35,222 pcs

1812L050PR Available from 3 distributors

Authorised
Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
34,058 pcs
34058 pcs On Request 1 On Request On Request 14+ On Request On Request
Non-Authorised Inventory information
994 pcs
994 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
170 pcs
170 pcs On Request 1 On Request On Request On Request On Request On Request

1812L050PR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Automotive Grade
Current
Current - Max
Halogen Free
Hold Current
Length
Mounting Type
Operating Temperature
Package / Case
Power Dissipation (Typ)
Resistance
Resistance - Initial (Rmin)
Resistance - Post Trip (R1max)
SVHC Present
Tape & Reel
Thickness (Max)
Time to Trip
Trip Current
Type
Voltage
Voltage - Max
Width

1812L050PR Description

Short technical summary and product information.

The Littelfuse PolySwitch 1812L050PR is a polymeric positive temperature coefficient (PPTC) resettable fuse designed for overcurrent protection in a wide range of electronic circuits. It provides automatic reset after fault conditions are cleared, eliminating the need for replacement fuses.

 

The device is rated for a hold current of 500 mA and a trip current of 1 A at a maximum voltage of 15V DC. It can withstand fault currents up to 100 A. Typical power dissipation is 0.8 W. Initial resistance is as low as 0.15 Ω, rising to a maximum of 1 Ω after tripping. The time to trip at 8 A is 150 ms.

 

The 1812L050PR is housed in a compact 1812 (4532 Metric) concave surface mount package, measuring 4.55 mm in length, 3.24 mm in width, and 0.75 mm in thickness. It operates over a temperature range of -40°C to +85°C. The component is RoHS compliant, lead-free, and halogen-free, suitable for high temperature soldering processes.

1812L050PR Quick Information

Product Type: PTC Resettable Fuse
Series: 1812L
Canonical Name: PolySwitch 1812L Series PTC Resettable Fuse, 0.5A Hold, 15V, 1812 Package
Subcategory: Surface Mount Polymeric PTC

1812L050PR Compliance

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

1812L050PR Features

  • Polymeric PPTC resettable overcurrent protection.
  • Hold current 500 mA, trip current 1 A.
  • Maximum voltage 15V DC, interrupt 100 A.
  • Low initial resistance of 0.15 ohms.
  • Surface mount 1812 package, RoHS compliant.

1812L050PR Applications

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

1812L050PR FAQs

5 frequently asked questions generated from this part’s specifications.
What is the hold current of the 1812L050PR?

The hold current is 500 mA.

What is the maximum voltage rating?

The maximum voltage is 15V DC.

What package type does the 1812L050PR use?

It uses an 1812 (4532 Metric) concave surface mount package.

What is the trip current of this PTC fuse?

The trip current is 1 A.

What is the operating temperature range?

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

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