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1812L110/24DR Littelfuse 1812L110/24DR is a PolySwitch resettable PPTC fuse with 1.1A hold current, 24V maximum voltage, in a 1812 surface mount package.
Mfr Part #:

1812L110/24DR

Available from 2 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
Littelfuse 1812L110/24DR is a PolySwitch resettable PPTC fuse with 1.1A hold current, 24V maximum voltage, in a 1812 surface mount package.
Total Stock: 850 pcs

1812L110/24DR 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
637 pcs
637 pcs On Request 1 On Request On Request 21+ On Request On Request
Non-Authorised Inventory information
213 pcs
213 pcs On Request 1 On Request On Request On Request On Request On Request

1812L110/24DR Specifications Quick View

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

1812L110/24DR Description

Short technical summary and product information.

The Littelfuse 1812L110/24DR is a PolySwitch resettable PPTC (positive temperature coefficient) overcurrent protection device. It is designed for surface mount applications where resettable protection is desired, eliminating the need for fuse replacement after a fault event.

 

This device features a hold current of 1.1 A and a trip current of 1.95 A, with a maximum voltage rating of 24 V DC and a maximum interrupt current of 20 A. Typical power dissipation is 0.8 W. The initial resistance is 0.06 Ω minimum, rising to 0.2 Ω maximum after tripping. The time to trip is 500 ms at 8 A, 25°C.

 

The 1812L110/24DR is housed in a 1812 (4532 Metric) surface mount package with dimensions 4.55 mm x 3.24 mm x 1.07 mm. It operates over a temperature range of -40°C to 85°C. The device is RoHS compliant, lead-free, and halogen-free, making it suitable for environmentally sensitive designs.

1812L110/24DR Quick Information

Product Type: PTC Resettable Fuse
Series: 1812L
Canonical Name: Littelfuse 1812L110/24DR PolySwitch Resettable PPTC, 24V, 1.1A Hold, 1812 Package
Subcategory: Surface Mount Polymeric PTC

1812L110/24DR Compliance

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

1812L110/24DR Features

  • 1.1 A hold current, 1.95 A trip current.
  • 24 V DC maximum voltage rating.
  • 20 A maximum interrupt current capability.
  • Surface mount 1812 package, 4.55 x 3.24 mm.
  • RoHS compliant, lead-free and halogen-free.

1812L110/24DR Applications

  • USB peripheral overcurrent protection.
  • Motherboard and PCI card protection.
  • Game console port protection.
  • Plug and play motherboard peripherals.

1812L110/24DR FAQs

7 frequently asked questions generated from this part’s specifications.
What is the hold current of the 1812L110/24DR?

The hold current is 1.1 A.

What is the trip current of this PTC fuse?

The trip current is 1.95 A.

What is the maximum voltage rating?

The maximum voltage is 24 V DC.

What is the maximum interrupt current?

The maximum interrupt current is 20 A.

What is the operating temperature range?

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

What package is this PTC fuse available in?

It is available in a 1812 (4532 Metric) surface mount package.

What is the time to trip at 8 A?

The time to trip is 500 ms at 8 A, 25°C.

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