Polymeric PTC Resettable Fuse 20V 5.5 A Ih User Defined Strap
Image shown is a representation only. Exact specifications should be obtained from the product data sheet.
Polymeric PTC Resettable Fuse 20V 5.5 A Ih User Defined Strap
Building Automation – Protect/Sense/Control
Basics of NTC and PTC Thermistors - Another Teaching Moment

LR4-550F

DigiKey Part Number
LR4-550F-ND
Manufacturer
Manufacturer Product Number
LR4-550F
Description
PTC RESET FUSE 20V 5.5A STRAP
Manufacturer Standard Lead Time
17 Weeks
Customer Reference
Detailed Description
Polymeric PTC Resettable Fuse 20V 5.5 A Ih User Defined Strap
Datasheet
 Datasheet
Product Attributes
Filter Similar Products
Show Empty Attributes
Category
Time to Trip
5 s
Manufacturer
Littelfuse Inc.
Resistance - Initial (Ri) (Min)
9 mOhms
Series
Resistance - Post Trip (R1) (Max)
22 mOhms
Packaging
Bag
Operating Temperature
-40°C ~ 85°C
Part Status
Active
Mounting Type
User Defined
Type
Polymeric
Package / Case
Strap
Voltage - Max
20V
Size / Dimension
1.417" L x 0.283" W (36.00mm x 7.20mm)
Current - Hold (Ih) (Max)
5.5 A
Thickness (Max)
0.039" (1.00mm)
Current - Trip (It)
10.5 A
Approval Agency
CSA, TUV, UL
Current - Max
100 A
Environmental & Export Classifications
Product Questions and Answers
Additional Resources
In-Stock: 2,006
Check for Additional Incoming Stock
All prices are in USD
Bag
QuantityUnit PriceExt Price
1$1.32000$1.32
5$1.09200$5.46
10$1.00800$10.08
50$0.83640$41.82
100$0.77170$77.17
250$0.69352$173.38
500$0.64710$323.55
Tariff Status: Tariff may apply if shipping to the United States. Tariff costs are calculated and will be displayed in the shopping cart.