Fuses
Browse available Fuses part numbers with manufacturer references, stock information, pricing, datasheets and key specifications. Use the table below to compare options for your project.
For BOM, shortage or hard-to-find requirements, send your part number and quantity to Winsun (HK) Electronics for availability, lead-time and quotation support.
| 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-500MAFUSE BRD MNT 500MA 250VAC RADIAL |
7,988 | - |
|
Datasheet | 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-630MAFUSE BRD MNT 630MA 250VAC RADIAL |
8,576 | - |
|
Datasheet | 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-800MAFUSE BRD MNT 800MA 250VAC RADIAL |
8,919 | - |
|
Datasheet | 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-1FUSE BOARD MNT 1A 277VAC RADIAL |
8,869 | - |
|
Datasheet | 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-1.25FUSE BRD MNT 1.25A 277VAC RADIAL |
7,586 | - |
|
Datasheet | 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-1.6FUSE BOARD MNT 1.6A 277VAC RAD |
9,323 | - |
|
Datasheet | 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-100MAFUSE BRD MNT 100MA 277VAC RADIAL |
5,857 | - |
|
Datasheet | 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-125MAFUSE BRD MNT 125MA 277VAC RADIAL |
7,318 | - |
|
Datasheet | 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-2FUSE BOARD MNT 2A 277VAC RADIAL |
9,020 | - |
|
Datasheet | 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-3.15FUSE BRD MNT 3.15A 277VAC RADIAL |
5,145 | - |
|
Datasheet | 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-4FUSE BOARD MNT 4A 277VAC RADIAL |
4,668 | - |
|
Datasheet | 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-5FUSE BOARD MNT 5A 277VAC RADIAL |
5,903 | - |
|
Datasheet | 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-500MAFUSE BRD MNT 500MA 277VAC RADIAL |
5,511 | - |
|
Datasheet | 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-6.3FUSE BOARD MNT 6.3A 277VAC RAD |
7,846 | - |
|
Datasheet | 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-800MAFUSE BRD MNT 800MA 277VAC RADIAL |
4,697 | - |
|
Datasheet | 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-80MAFUSE BOARD MNT 80MA 277VAC RAD |
5,947 | - |
|
Datasheet | 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-1.25RFUSE CERAMIC 1.25A 250VAC 5X20MM |
5,646 | - |
|
Datasheet | 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-RFUSE CERAMIC 1.6A 250VAC 5X20MM |
8,389 | - |
|
Datasheet | 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-RFUSE CERAMIC 2.5A 250VAC 5X20MM |
7,006 | - |
|
Datasheet | 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-3.15RFUSE CERAMIC 3.15A 250VAC 5X20MM |
7,865 | - |
|
Datasheet | 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) |
Fuses FAQ
Common questions about selecting, comparing and sourcing Fuses components through Winsun (HK) Electronics.
What should I check when selecting Fuses components?
Compare the manufacturer part number, electrical specifications, package, operating conditions and application requirements. The product datasheet should be used to confirm technical suitability.
Can Winsun help source specific Fuses part numbers?
Yes. Send the exact part number, manufacturer and required quantity. Winsun (HK) Electronics can assist with availability checks, quotation support and sourcing options based on your requirement.
Do you support shortage, obsolete or hard-to-find Fuses parts?
Yes. Our sourcing team can review shortage and obsolete-part requirements and help check available supply channels or possible alternatives when appropriate.
How do I request a quote for Fuses components?
Submit an RFQ with the part number, manufacturer, quantity and target delivery requirement. Our sales team will review your request and follow up with current sourcing information.
