RKEF400 is out of stock and can be placed on backorder.
Available Substitutes:

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Bel Fuse Inc.
In Stock: 0
Unit Price: $0.75000
Datasheet
Polymeric PTC Resettable Fuse 60V 4 A Ih Through Hole Radial, Disc
Image shown is a representation only. Exact specifications should be obtained from the product data sheet.
Polymeric PTC Resettable Fuse 60V 4 A Ih Through Hole Radial, Disc
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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
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Category
Time to Trip
24 s
Manufacturer
Littelfuse Inc.
Resistance - Initial (Ri) (Min)
14 mOhms
Series
Resistance - Post Trip (R1) (Max)
60 mOhms
Packaging
Bag
Operating Temperature
-40°C ~ 85°C
Part Status
Active
Mounting Type
Through Hole
Type
Polymeric
Package / Case
Radial, Disc
Voltage - Max
60V
Size / Dimension
0.827" L x 0.118" W (21.00mm x 3.00mm)
Current - Hold (Ih) (Max)
4 A
Height - Seated (Max)
0.980" (24.90mm)
Current - Trip (It)
8 A
Lead Spacing
0.400" (10.15mm)
Current - Max
40 A
Approval Agency
CSA, TUV, UL
Environmental & Export Classifications
Product Questions and Answers
Additional Resources
Substitutes (1)
Part NumberManufacturerQuantity AvailableDigiKey Part NumberUnit PriceSubstitute Type
0ZRP0400FF1ABel Fuse Inc.05923-0ZRP0400FF1A-ND$0.75000Similar
In-Stock: 0
250 estimated in stock on 09-Mar-2027
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All prices are in USD
Bag
QuantityUnit PriceExt Price
1$0.96000$0.96
5$0.79600$3.98
10$0.73400$7.34
50$0.60920$30.46
100$0.56210$56.21
250$0.50524$126.31
500$0.46594$232.97
1,000$0.42953$429.53
5,000$0.37075$1,853.75
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