Fuses

Manufacturers Package/Case Series Packaging Product Status Mounting Type Fuse Type Current Rating (Amps) Voltage Rating - AC Voltage Rating - DC Response Time Breaking Capacity @ Rated Voltage Melting I²t Approval Agency Operating Temperature Color Size / Dimension

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Photo Mfr. Part # Availability Price Quantity Datasheet Package/Case Series Packaging Product Status Mounting Type Fuse Type Current Rating (Amps) Voltage Rating - AC Voltage Rating - DC Response Time Breaking Capacity @ Rated Voltage Melting I²t Approval Agency Operating Temperature Color Size / Dimension
BK/EFF-500MA

BK/EFF-500MA

FUSE BRD MNT 500MA 250VAC RADIAL

Eaton - Electronics Division

7,988
RFQ
BK/EFF-500MADatasheet EFF Bulk Obsolete Through Hole Board Mount (Cartridge Style Excluded) 500 mA 250 V - Fast Blow 50A 0.15 SEMKO, UL -55°C ~ 125°C - 0.329" Dia x 0.303" H (8.35mm x 7.70mm)
BK/EFF-630MA

BK/EFF-630MA

FUSE BRD MNT 630MA 250VAC RADIAL

Eaton - Electronics Division

8,576
RFQ
BK/EFF-630MADatasheet EFF Bulk Obsolete Through Hole Board Mount (Cartridge Style Excluded) 630 mA 250 V - Fast Blow 50A 0.12 SEMKO, UL -55°C ~ 125°C - 0.329" Dia x 0.303" H (8.35mm x 7.70mm)
BK/EFF-800MA

BK/EFF-800MA

FUSE BRD MNT 800MA 250VAC RADIAL

Eaton - Electronics Division

8,919
RFQ
BK/EFF-800MADatasheet EFF Bulk Obsolete Through Hole Board Mount (Cartridge Style Excluded) 800 mA 250 V - Fast Blow 50A 0.21 SEMKO, UL -55°C ~ 125°C - 0.329" Dia x 0.303" H (8.35mm x 7.70mm)
BK/ETF-1

BK/ETF-1

FUSE BOARD MNT 1A 277VAC RADIAL

Eaton - Electronics Division

8,869
RFQ
BK/ETF-1Datasheet ETF Bulk Obsolete Through Hole Board Mount (Cartridge Style Excluded) 1 A 277 V - Slow Blow 100A 5.9 SEMKO, UL -55°C ~ 125°C - 0.329" Dia x 0.303" H (8.35mm x 7.70mm)
BK/ETF-1.25

BK/ETF-1.25

FUSE BRD MNT 1.25A 277VAC RADIAL

Eaton - Electronics Division

7,586
RFQ
BK/ETF-1.25Datasheet ETF Bulk Obsolete Through Hole Board Mount (Cartridge Style Excluded) 1.25 A 277 V - Slow Blow 100A 9.0 SEMKO, UL -55°C ~ 125°C - 0.329" Dia x 0.303" H (8.35mm x 7.70mm)
BK/ETF-1.6

BK/ETF-1.6

FUSE BOARD MNT 1.6A 277VAC RAD

Eaton - Electronics Division

9,323
RFQ
BK/ETF-1.6Datasheet ETF Bulk Obsolete Through Hole Board Mount (Cartridge Style Excluded) 1.6 A 277 V - Slow Blow 100A 15.0 SEMKO, UL -55°C ~ 125°C - 0.329" Dia x 0.303" H (8.35mm x 7.70mm)
BK/ETF-100MA

BK/ETF-100MA

FUSE BRD MNT 100MA 277VAC RADIAL

Eaton - Electronics Division

5,857
RFQ
BK/ETF-100MADatasheet ETF Bulk Obsolete Through Hole Board Mount (Cartridge Style Excluded) 100 mA 277 V - Slow Blow 100A 0.02 SEMKO, UL -55°C ~ 125°C - 0.329" Dia x 0.303" H (8.35mm x 7.70mm)
BK/ETF-125MA

BK/ETF-125MA

FUSE BRD MNT 125MA 277VAC RADIAL

Eaton - Electronics Division

7,318
RFQ
BK/ETF-125MADatasheet ETF Bulk Obsolete Through Hole Board Mount (Cartridge Style Excluded) 125 mA 277 V - Slow Blow 100A 0.04 SEMKO, UL -55°C ~ 125°C - 0.329" Dia x 0.303" H (8.35mm x 7.70mm)
BK/ETF-2

BK/ETF-2

FUSE BOARD MNT 2A 277VAC RADIAL

Eaton - Electronics Division

9,020
RFQ
BK/ETF-2Datasheet ETF Bulk Obsolete Through Hole Board Mount (Cartridge Style Excluded) 2 A 277 V - Slow Blow 100A 23.0 SEMKO, UL -55°C ~ 125°C - 0.329" Dia x 0.303" H (8.35mm x 7.70mm)
BK/ETF-3.15

BK/ETF-3.15

FUSE BRD MNT 3.15A 277VAC RADIAL

Eaton - Electronics Division

5,145
RFQ
BK/ETF-3.15Datasheet ETF Bulk Obsolete Through Hole Board Mount (Cartridge Style Excluded) 3.15 A 277 V - Slow Blow 100A 58.0 SEMKO, UL -55°C ~ 125°C - 0.329" Dia x 0.303" H (8.35mm x 7.70mm)
BK/ETF-4

BK/ETF-4

FUSE BOARD MNT 4A 277VAC RADIAL

Eaton - Electronics Division

4,668
RFQ
BK/ETF-4Datasheet ETF Bulk Obsolete Through Hole Board Mount (Cartridge Style Excluded) 4 A 277 V - Slow Blow 100A 92.0 SEMKO, UL -55°C ~ 125°C - 0.329" Dia x 0.303" H (8.35mm x 7.70mm)
BK/ETF-5

BK/ETF-5

FUSE BOARD MNT 5A 277VAC RADIAL

Eaton - Electronics Division

5,903
RFQ
BK/ETF-5Datasheet ETF Bulk Obsolete Through Hole Board Mount (Cartridge Style Excluded) 5 A 277 V - Slow Blow 100A 145.0 SEMKO, UL -55°C ~ 125°C - 0.329" Dia x 0.303" H (8.35mm x 7.70mm)
BK/ETF-500MA

BK/ETF-500MA

FUSE BRD MNT 500MA 277VAC RADIAL

Eaton - Electronics Division

5,511
RFQ
BK/ETF-500MADatasheet ETF Bulk Obsolete Through Hole Board Mount (Cartridge Style Excluded) 500 mA 277 V - Slow Blow 100A 1.5 SEMKO, UL -55°C ~ 125°C - 0.329" Dia x 0.303" H (8.35mm x 7.70mm)
BK/ETF-6.3

BK/ETF-6.3

FUSE BOARD MNT 6.3A 277VAC RAD

Eaton - Electronics Division

7,846
RFQ
BK/ETF-6.3Datasheet ETF Bulk Obsolete Through Hole Board Mount (Cartridge Style Excluded) 6.3 A 277 V - Slow Blow 100A 230.0 SEMKO, UL -55°C ~ 125°C - 0.329" Dia x 0.303" H (8.35mm x 7.70mm)
BK/ETF-800MA

BK/ETF-800MA

FUSE BRD MNT 800MA 277VAC RADIAL

Eaton - Electronics Division

4,697
RFQ
BK/ETF-800MADatasheet ETF Bulk Obsolete Through Hole Board Mount (Cartridge Style Excluded) 800 mA 277 V - Slow Blow 100A 3.7 SEMKO, UL -55°C ~ 125°C - 0.329" Dia x 0.303" H (8.35mm x 7.70mm)
BK/ETF-80MA

BK/ETF-80MA

FUSE BOARD MNT 80MA 277VAC RAD

Eaton - Electronics Division

5,947
RFQ
BK/ETF-80MADatasheet ETF Bulk Obsolete Through Hole Board Mount (Cartridge Style Excluded) 80 mA 277 V - Slow Blow 100A 0.01 SEMKO, UL -55°C ~ 125°C - 0.329" Dia x 0.303" H (8.35mm x 7.70mm)
BK/S505-V-1.25R

BK/S505-V-1.25R

FUSE CERAMIC 1.25A 250VAC 5X20MM

Eaton - Electronics Division

5,646
RFQ
BK/S505-V-1.25RDatasheet S505 Bulk Obsolete Through Hole Cartridge, Ceramic 1.25 A 250 V - Slow Blow 1.5kA 2.22 BSI, CCC/CQC, CSA, cULus, IMQ, KC, PSE/JET, SEMKO, VDE - - 0.218" Dia x 0.831" L (5.54mm x 21.10mm)
BK/S505-V-1.6-R

BK/S505-V-1.6-R

FUSE CERAMIC 1.6A 250VAC 5X20MM

Eaton - Electronics Division

8,389
RFQ
BK/S505-V-1.6-RDatasheet S505 Bulk Obsolete Through Hole Cartridge, Ceramic 1.6 A 250 V - Slow Blow 1.5kA 6.78 BSI, CCC/CQC, CSA, cULus, IMQ, KC, PSE/JET, SEMKO, VDE - - 0.218" Dia x 0.831" L (5.54mm x 21.10mm)
BK/S505-V-2.5-R

BK/S505-V-2.5-R

FUSE CERAMIC 2.5A 250VAC 5X20MM

Eaton - Electronics Division

7,006
RFQ
BK/S505-V-2.5-RDatasheet S505 Bulk Obsolete Through Hole Cartridge, Ceramic 2.5 A 250 V - Slow Blow 1.5kA 16.6 BSI, CCC/CQC, CSA, cULus, IMQ, KC, PSE/JET, SEMKO, VDE - - 0.218" Dia x 0.831" L (5.54mm x 21.10mm)
BK/S505-V-3.15R

BK/S505-V-3.15R

FUSE CERAMIC 3.15A 250VAC 5X20MM

Eaton - Electronics Division

7,865
RFQ
BK/S505-V-3.15RDatasheet S505 Bulk Obsolete Through Hole Cartridge, Ceramic 3.15 A 250 V - Slow Blow 1.5kA 36.6 BSI, CCC/CQC, CSA, cULus, IMQ, KC, PSE/JET, SEMKO, VDE - - 0.218" Dia x 0.831" L (5.54mm x 21.10mm)

Category Overview

Fuses Products & Selection Guide

Fuses are widely used in industrial automation, automotive electronics, communication equipment, consumer electronics, new energy systems, and many other electronic applications. We offer products from multiple manufacturers, packages, and specifications to help engineers and buyers compare and source suitable components.

Use the manufacturer, key specification, availability, and Datasheet filters to narrow down the right Fuses. If the exact part is not listed, submit an inquiry and our team can help check stock, lead time, and suitable alternatives.

FAQ

How do I choose the right Fuses?

Start with the required electrical specifications, package, operating temperature, application conditions, and manufacturer preference, then compare availability and lead time.

Can I order based on the stock shown on this page?

Inventory can change with supply conditions. For project or volume requirements, please submit an inquiry so current stock, pricing, and lead time can be confirmed.

What if the exact part number I need is not listed?

Send us the part number and required quantity. We can help source hard-to-find parts and suggest suitable alternatives based on key specifications.

Do you provide Datasheets and technical documents?

Yes. Use the Datasheet links in the product list to view available technical documents. If a document is unavailable, contact us and we can help check it.

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