RKEF Series
Image shown is a representation only. Exact specifications should be obtained from the product data sheet.
RKEF Series
Building Automation – Protect/Sense/Control
Basics of NTC and PTC Thermistors - Another Teaching Moment

RKEF400

DigiKey Part Number
RKEF400HF-ND
Manufacturer
Manufacturer Product Number
RKEF400
Description
PTC RESET FUSE 60V 4A RADIAL
Manufacturer Standard Lead Time
15 Weeks
Customer Reference
Detailed Description
Polymeric PTC Resettable Fuse 60V 4 A Ih Through Hole Radial, Disc
Datasheet
 Datasheet
EDA/CAD Models
RKEF400 Models
Product Attributes
Type
Description
Select All
Category
Manufacturer
Littelfuse Inc.
Series
Packaging
Bag
Part Status
Active
Type
Polymeric
Voltage - Max
60V
Current - Hold (Ih) (Max)
4 A
Current - Trip (It)
8 A
Current - Max
40 A
Time to Trip
24 s
Resistance - Initial (Ri) (Min)
14 mOhms
Resistance - Post Trip (R1) (Max)
60 mOhms
Operating Temperature
-40°C ~ 85°C
Ratings
-
Mounting Type
Through Hole
Package / Case
Radial, Disc
Size / Dimension
0.827" L x 0.118" W (21.00mm x 3.00mm)
Height - Seated (Max)
0.980" (24.90mm)
Thickness (Max)
-
Lead Spacing
0.400" (10.15mm)
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: 3 759
Check for Additional Incoming Stock
All prices are in EUR
Bag
QuantityUnit PriceExt Price
10,83000 €0,83 €
50,68800 €3,44 €
100,63400 €6,34 €
500,52620 €26,31 €
1000,48550 €48,55 €
2500,43636 €109,09 €
5000,40244 €201,22 €
1 0000,37099 €370,99 €
5 0000,32022 €1 601,10 €
Manufacturers Standard Package
Unit Price without VAT:0,83000 €
Unit Price with VAT:1,02090 €