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
15 Weeks
Customer Reference
Detailed Description
Polymeric PTC Resettable Fuse 20V 5.5 A Ih User Defined Strap
Datasheet
 Datasheet
Product Attributes
Type
Description
Select All
Category
Manufacturer
Littelfuse Inc.
Series
Packaging
Bag
Part Status
Active
Type
Polymeric
Voltage - Max
20V
Current - Hold (Ih) (Max)
5.5 A
Current - Trip (It)
10.5 A
Current - Max
100 A
Time to Trip
5 s
Resistance - Initial (Ri) (Min)
9 mOhms
Resistance - Post Trip (R1) (Max)
22 mOhms
Operating Temperature
-40°C ~ 85°C
Ratings
-
Mounting Type
User Defined
Package / Case
Strap
Size / Dimension
1.417" L x 0.283" W (36.00mm x 7.20mm)
Height - Seated (Max)
-
Thickness (Max)
0.039" (1.00mm)
Lead Spacing
-
Approval Agency
CSA, TUV, UL
Product Questions and Answers

See what engineers are asking, ask your own questions, or help out a member of the DigiKey engineering community

In-Stock: 22.949
Check for Additional Incoming Stock
All prices are in RON
Bag
QuantityUnit PriceExt Price
15,88000 lei5,88 lei
54,88800 lei24,44 lei
104,50700 lei45,07 lei
503,73960 lei186,98 lei
1003,45000 lei345,00 lei
2503,10072 lei775,18 lei
5002,85918 lei1.429,59 lei
1.0002,63547 lei2.635,47 lei
5.0002,43062 lei12.153,10 lei
Manufacturers Standard Package
Unit Price without VAT:5,88000 lei
Unit Price with VAT:7,11480 lei