BK/S501-4-R is out of stock and can be placed on backorder.
Available Substitutes:

Direct


Littelfuse Inc.
In Stock: 0
Unit Price: $1.77000
Datasheet
4 A 250 V Fuse Cartridge, Ceramic Requires Holder 5mm x 20mm
Image shown is a representation only. Exact specifications should be obtained from the product data sheet.
4 A 250 V Fuse Cartridge, Ceramic Requires Holder 5mm x 20mm
Eaton Electronics Overcurrent Protection Fuse Portfolio

BK/S501-4-R

DigiKey Part Number
283-2666-ND
Manufacturer
Manufacturer Part Number
BK/S501-4-R
Description
FUSE CERAMIC 4A 250VAC 5X20MM
Manufacturer Standard Lead Time
19 Weeks
Customer Reference
Detailed Description
4 A 250 V Fuse Cartridge, Ceramic Requires Holder 5mm x 20mm
Datasheet
 Datasheet
Product Attributes
Filter Similar Products
Show Empty Attributes
Category
Voltage Rating - AC
250 V
Mfr
Response Time
Fast Blow
Series
Package / Case
Packaging
Bulk
Breaking Capacity @ Rated Voltage
1.5kA
Part Status
Active
Melting I²t
14.0
Mounting Type
Requires Holder
Approval Agency
BSI, CCC, CSA, cULus, IMQ, MITI/JET, SEMKO, VDE
Fuse Type
Size / Dimension
0.205" Dia x 0.787" L (5.20mm x 20.00mm)
Current Rating (Amps)
DC Cold Resistance
0.027 Ohms
Associated Products
Environmental & Export Classifications
Product Questions and Answers
Additional Resources
Substitutes (1)
Part NumberManufacturerQuantity AvailableDigiKey Part NumberUnit PriceSubstitute Type
0216004.MXPLittelfuse Inc.0F1708-ND$1.77000Direct
In-Stock: 0
100 estimated in stock on 12-Mar-2027
Request Stock Notification
All prices are in USD
Bulk
QuantityUnit PriceExt Price
1$1.86000$1.86
5$1.54200$7.71
10$1.42200$14.22
50$1.18000$59.00
100$1.08860$108.86
300$0.95763$287.29
500$0.90196$450.98
1,000$0.83123$831.23
5,000$0.68615$3,430.75
Tariff Status: Tariff may apply if shipping to the United States. Estimated tariff costs will be calculated and displayed in the shopping cart to help you assess potential expenses.