LVR055S-1

$1.18

Description：PTC RESET FUSE 240V 550MA RADIAL
Series：PolySwitch®, LVR
Mfr：Littelfuse Inc.
Package：Bag

SKU:eda62b7030a2 Category: PTC Resettable Fuses Brand: Littelfuse Inc.

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Product introduction

LVR055S-1 is listed in the Ptc Resettable Fuses range at ChipApex. The manufacturer field lists Littelfuse Inc.. Its product description is PTC RESET FUSE 240V 550MA RADIAL. Review the specifications below when checking this part for your BOM.

Ptc Resettable Fuses specifications for LVR055S-1

Description：PTC RESET FUSE 240V 550MA RADIAL
Series：PolySwitch®, LVR
Mfr：Littelfuse Inc.
Package：Bag
Type：Polymeric
Voltage - Max：240V (265V Int)
Current - Hold (Ih) (Max)：550 mA
Current - Trip (It)：1.25 A
Current - Max：7:00 AM
Time to Trip：26 s
Resistance - Initial (Ri) (Min)：450 mOhms
Resistance - Post Trip (R1) (Max)：1.45 Ohms
Resistance - 25°C (Typ)：-
Operating Temperature：-20°C ~ 85°C
Grade：-
Qualification：-
Ratings：-
Mounting Type：Through Hole
Package / Case：Radial, Disc
Size / Dimension：0.551" L x 0.161" W (14.00mm x 4.10mm)
Height - Seated (Max)：0.854" (21.70mm)
Thickness (Max)：-
Lead Spacing：0.200" (5.08mm)

Ptc Resettable Fuses datasheet and documents for LVR055S-1

LVR055S-1

Ptc Resettable Fuses Overview

The Littelfuse LVR055S-1 is a PolySwitch resettable PTC device designed for line-voltage protection. It features a hold current of 0.55 A and a trip current of 1.25 A at 20°C. The maximum voltage rating is 240 VAC/VDC, with a maximum fault current capacity of 7 A. The device operates within a temperature range of -40°C to +85°C and has a maximum resistance of 1.45 ohms. It utilizes a radial leaded package with a 5.8 mm lead spacing.

Ptc Resettable Fuses Feature Summary

Provides overcurrent protection against mechanical overloads, overheating, stall, and lost neutral conditions in commercial and home appliances.
Offers low resistance characteristics compatible with traditional fuse solutions while maintaining a compact form factor.
Constructed from polymeric positive temperature coefficient materials that raise resistance upon heating to limit current flow.

Ptc Resettable Fuses Applications

Protection of electric motors in commercial and home appliances
Transformer circuit protection against overcurrent surges
Defense against overtemperature faults in line-voltage circuits

Ptc Resettable Fuses Procurement Notes

Verify the specific suffix designation to ensure correct voltage and current ratings. Confirm compliance requirements such as RoHS status prior to integration. Check datasheet specifications for thermal derating curves relevant to the intended operating environment. Ensure mounting style matches the PCB layout requirements.

Ptc Resettable Fuses Selection Notes

Select this component for applications requiring line-voltage rated resettable fuses up to 240 VAC/VDC. Consider the 0.55 A hold current for circuits where continuous operation must be maintained under normal load. Evaluate the 7 A maximum fault current rating against potential surge scenarios. Verify that the radial leaded package fits the assembly constraints.

Ptc Resettable Fuses Part Context

The LVR series represents Littelfuse's line-voltage-rated PolySwitch devices. These components are engineered specifically for protecting equipment connected to mains power lines. The series offers a broad range of radial-leaded options suitable for replacing traditional fuses in high-voltage AC/DC environments.