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1210L050YR Littelfuse 1210L050YR is a 13.2V, 500mA hold current PolySwitch PTC resettable fuse in a 1210 SMD package. It provides surface mount overcurrent protection with resettable functionality.
Mfr Part #:

1210L050YR

Available from 3 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
Littelfuse 1210L050YR is a 13.2V, 500mA hold current PolySwitch PTC resettable fuse in a 1210 SMD package. It provides surface mount overcurrent protection with resettable functionality.
Total Stock: 6,180 pcs

1210L050YR 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
5,000 pcs
5000 pcs On Request 1 On Request On Request On Request On Request 2026-02-16 21:33:16
Non-Authorised Inventory information
1,133 pcs
1133 pcs On Request 1 On Request On Request 16+ On Request On Request
Non-Authorised Inventory information
47 pcs
47 pcs On Request 1 On Request On Request 51321 On Request On Request

1210L050YR Specifications Quick View

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

1210L050YR Description

Short technical summary and product information.

The Littelfuse 1210L050YR is a PolySwitch polymeric PTC resettable fuse designed for surface mount overcurrent protection. It has a hold current of 500 mA and a trip current of 1 A at 20°C still air. The device can withstand a maximum voltage of 13.2 Vdc and a maximum fault current of 100 A. Typical power dissipation is 0.6 W.

 

This PTC fuse features a low initial resistance of 250 mΩ and a maximum post-trip resistance of 900 mΩ. The time to trip is typically 50 ms at 8 A. It is packaged in a 1210 (3225 Metric) concave surface mount package measuring 3.22 mm x 2.58 mm x 0.85 mm.

 

The 1210L050YR is suitable for applications where space is limited and resettable protection is required. It operates over a temperature range of -40°C to 85°C.

1210L050YR Quick Information

Product Type: PTC Resettable Fuse
Series: 1210L
Canonical Name: Littelfuse 1210L050YR PolySwitch PTC Resettable Fuse
Subcategory: Surface Mount Polymeric PTC

1210L050YR Compliance

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

1210L050YR Features

  • 500 mA hold current, 1 A trip current.
  • Max voltage rating of 13.2 Vdc.
  • Handles up to 100 A fault current.
  • Low 250 mΩ initial resistance.
  • Surface mount 1210 package.

1210L050YR Applications

  • Overcurrent protection for portable electronics.
  • Used in USB peripheral power circuits.
  • Suitable for battery pack protection.
  • Ideal for space-constrained PCB designs.

1210L050YR FAQs

6 frequently asked questions generated from this part’s specifications.
What is the hold current of the 1210L050YR?

The hold current is 500 mA at 20°C still air.

What is the maximum voltage rating?

The maximum voltage the device can withstand without damage is 13.2 Vdc.

What is the package type?

The package is 1210 (3225 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 typical time to trip is 50 ms at 8 A.

What is the maximum fault current?

The maximum fault current the device can withstand is 100 A.

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