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

RKEF250

DigiKey Part Number
RKEF250HF-ND
Manufacturer
Manufacturer Product Number
RKEF250
Description
PTC RESET FUSE 60V 2.5A RADIAL
Manufacturer Standard Lead Time
15 Weeks
Customer Reference
Detailed Description
Polymeric PTC Resettable Fuse 60V 2.5 A Ih Through Hole Radial, Disc
Datasheet
 Datasheet
EDA/CAD Models
RKEF250 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)
2.5 A
Current - Trip (It)
5 A
Current - Max
40 A
Time to Trip
15.6 s
Resistance - Initial (Ri) (Min)
40 mOhms
Resistance - Post Trip (R1) (Max)
140 mOhms
Operating Temperature
-40°C ~ 85°C
Ratings
-
Mounting Type
Through Hole
Package / Case
Radial, Disc
Size / Dimension
0.512" L x 0.150" W (13.00mm x 3.81mm)
Height - Seated (Max)
0.740" (18.80mm)
Thickness (Max)
-
Lead Spacing
0.200" (5.08mm)
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: 493
Check for Additional Incoming Stock
All prices are in HKD
Bag
QuantityUnit PriceExt Price
1$5.84000$5.84
5$4.84000$24.20
10$4.46200$44.62
50$3.69940$184.97
100$3.41380$341.38
250$3.06888$767.22
500$2.83032$1,415.16
1,000$2.60954$2,609.54
5,000$2.18458$10,922.90
Manufacturers Standard Package