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RKEF Series
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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

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All prices are in CAD
Bag
QuantityUnit PriceExt Price
1$1.03000$1.03
5$0.85600$4.28
10$0.79000$7.90
50$0.65480$32.74
100$0.60420$60.42
250$0.54320$135.80
500$0.50098$250.49
1,000$0.46189$461.89
5,000$0.38667$1,933.35
Manufacturers Standard Package