OptiFuse

OptiFuse

OptiFuse is a company that specializes in the design, manufacturing, and distribution of high-quality fuses and circuit protection products. With a focus on safety and reliability, OptiFuse offers a wide range of fuse solutions that cater to various industries such as automotive, telecommunications, industrial automation, and renewable energy. The company's product portfolio includes blade fuses, automotive fuses, PCB-mount fuses, and thermal cutoffs, among others. OptiFuse prides itself on delivering exceptional customer service and technical support, ensuring that their clients receive the most suitable fuse solutions for their specific needs. With a commitment to innovation and stringent quality control measures, OptiFuse has gained a reputation for providing reliable circuit protection solutions that safeguard valuable equipment and systems.

Fuses

Results:
1,188
Series
Current Rating (Amps)
Size / Dimension
Package / Case
Breaking Capacity @ Rated Voltage
Approval Agency
Color
Mounting Type
Voltage Rating - DC
Operating Temperature
Melting I²t
Fuse Type
Voltage Rating - AC
Response Time
Results remaining1,188
Applied Filters:
OptiFuse
Select
ImageProduct DetailPriceAvailabilityECAD ModelColorVoltage Rating - DCOperating TemperatureMounting TypeCurrent Rating (Amps)Response TimeVoltage Rating - ACFuse TypePackage / CaseBreaking Capacity @ Rated VoltageMelting I²tSeriesApproval AgencySize / Dimension
FMR-4A
FUSE BOARD MNT 4A 250VAC RADIAL
1+
$4.1324
5+
$3.9028
10+
$3.6732
Quantity
35 Available
Can ship immediately
Ships from: HK
PCB Symbol, Footprint & 3D Model
-
-
-
Through Hole
4 A
Fast Blow
250 V
Board Mount (Cartridge Style Excluded)
Radial, Can, Vertical
50A
3.5
FMR
cULus, UL 248
0.335" Dia x 0.327" H (8.50mm x 8.30mm)
TCD-1.25A
Ceramic-5x20mm (IEC), Slow 1.25A
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Quantity
Contact us
PCB Symbol, Footprint & 3D Model
-
-
-55°C ~ 125°C
Requires Holder
1.25 A
Slow Blow
250 V
Cartridge, Ceramic
5mm x 20mm
1.5kA
-
TCD
cURus, IEC 60127
0.205" Dia x 0.787" L (5.20mm x 20.00mm)
FCD-P-2.5A
Ceramic-5x20mm (IEC), Fast 2.5A
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Quantity
Contact us
PCB Symbol, Footprint & 3D Model
-
250 V
-55°C ~ 125°C
Through Hole
2.5 A
Fast Blow
250 V
Cartridge, Ceramic
5mm x 20mm (Axial)
1.5kA
1.995
FCD
cURus, IEC 60127
0.217" Dia x 0.827" L (5.50mm x 21.00mm)
MGGA-300A-B
Limiter Fuse, Time Delay, 300A
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Quantity
Contact us
PCB Symbol, Footprint & 3D Model
Black
32 V
-20°C ~ 125°C
Bolt Mount
300 A
Slow Blow
-
Automotive
Auto Link
2kA
-
MGGA-B
ISO
1.150" L x 0.748" W x 0.370" H (29.20mm x 19.00mm x 9.40mm)
TPCC-R-4A
CLASS CC FUSE, TIME DELAY 4A
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Quantity
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PCB Symbol, Footprint & 3D Model
-
300 V
-
Holder
4 A
Slow Blow
600 V
Cartridge, Ceramic
5AG, 10mm x 38mm (Midget)
200kA AC, 100kA DC
-
TPCC-R
CSA, UL
0.409" Dia x 1.500" L (10.40mm x 38.10mm)
FSE-P-500MA
Glass Fuse - 5x15mm, Fast 500mA
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Quantity
Contact us
PCB Symbol, Footprint & 3D Model
-
-
-55°C ~ 125°C
Through Hole
500 mA
Fast Blow
250 V
Cartridge, Glass
2AG, 5mm x 15mm (Axial)
100A
0.109
FSE
cULus, UL 248
0.197" Dia x 0.630" L (5.00mm x 16.00mm)
TPCC-R-15A
CLASS CC FUSE, TIME DELAY 15A
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Quantity
Contact us
PCB Symbol, Footprint & 3D Model
-
300 V
-
Holder
15 A
Slow Blow
600 V
Cartridge, Ceramic
5AG, 10mm x 38mm (Midget)
200kA AC, 100kA DC
-
TPCC-R
CSA, UL
0.409" Dia x 1.500" L (10.40mm x 38.10mm)
ANT-3A
MICRO2 Blade Fuse, 32V 3A
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Quantity
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PCB Symbol, Footprint & 3D Model
Violet
32 V
-
Requires Holder
3 A
Fast Blow
-
Automotive
Blade, Micro
1kA
-
ANT
ISO, SAE
0.358" L x 0.150" W x 0.311" H (9.10mm x 3.80mm x 7.90mm)
MGGA-200A-B
Limiter Fuse, Time Delay, 200A
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Quantity
Contact us
PCB Symbol, Footprint & 3D Model
Black
32 V
-20°C ~ 125°C
Bolt Mount
200 A
Slow Blow
-
Automotive
Auto Link
2kA
-
MGGA-B
ISO
1.150" L x 0.748" W x 0.370" H (29.20mm x 19.00mm x 9.40mm)
TFLN-30A
LINK FUSE, LOCKING FEMALE - 30A
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Quantity
Contact us
PCB Symbol, Footprint & 3D Model
Green
32 V
-
Requires Holder
30 A
Fast Blow
-
Automotive
Auto Link
1kA
-
TFLN
ISO, SAE
-
MGGA-250A-B
LIMITER FUSE, TIME DELAY, 250A
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Quantity
Contact us
PCB Symbol, Footprint & 3D Model
Black
32 V
-20°C ~ 125°C
Bolt Mount
250 A
Slow Blow
-
Automotive
Auto Link
2kA
-
MGGA-B
ISO
1.150" L x 0.748" W x 0.370" H (29.20mm x 19.00mm x 9.40mm)
MGGA-100A-B
LIMITER FUSE, TIME DELAY, 100A
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Quantity
Contact us
PCB Symbol, Footprint & 3D Model
Black
32 V
-20°C ~ 125°C
Bolt Mount
100 A
Slow Blow
-
Automotive
Auto Link
2kA
-
MGGA-B
ISO
1.150" L x 0.748" W x 0.370" H (29.20mm x 19.00mm x 9.40mm)
TFLN-25A
LINK FUSE, LOCKING FEMALE - 25A
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Quantity
Contact us
PCB Symbol, Footprint & 3D Model
Brown
32 V
-
Requires Holder
25 A
Fast Blow
-
Automotive
Auto Link
1kA
-
TFLN
ISO, SAE
-
FXG-400MA
THRU HOLE 2.7X7.3MM, FAST 400MA
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Quantity
Contact us
PCB Symbol, Footprint & 3D Model
-
-
-55°C ~ 125°C
Through Hole
400 mA
Fast Blow
250 V
Board Mount (Cartridge Style Excluded)
Axial
50A
-
FXG
UL 248
0.110" Dia x 0.290" L (2.80mm x 7.37mm)
FCM-R-2A
SMD FUSE-2410, FAST ACTING 2A
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Quantity
Contact us
PCB Symbol, Footprint & 3D Model
-
32 V
-55°C ~ 125°C
Surface Mount
2 A
Fast Blow
125 V
Board Mount (Cartridge Style Excluded)
2410 (6125 Metric)
50A AC, 300A DC
-
FCM
CSA, cULus, PSE
0.240" L x 0.100" W x 0.100" H (6.10mm x 2.54mm x 2.54mm)
TSC-P-3.5A
GLASS - 5X20MM (UL), SLOW 3.5A
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Quantity
Contact us
PCB Symbol, Footprint & 3D Model
-
-
-55°C ~ 125°C
Through Hole
3.5 A
Slow Blow
250 V
Cartridge, Glass
5mm x 20mm (Axial)
200A
-
TSC-P
cULus, UL 248
0.217" Dia x 0.827" L (5.50mm x 21.00mm)
TCD-P-10A
CERAMIC-5X20MM (IEC), SLOW 10A
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Quantity
Contact us
PCB Symbol, Footprint & 3D Model
-
-
-55°C ~ 125°C
Through Hole
10 A
Slow Blow
250 V
Cartridge, Ceramic
5mm x 20mm (Axial)
1.5kA
-
TCD-P
cURus, IEC 60127
0.217" Dia x 0.827" L (5.50mm x 21.00mm)
FSC-7A
FUSE GLASS 7A 250VAC 5X20MM
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Quantity
Contact us
PCB Symbol, Footprint & 3D Model
-
-
-55°C ~ 90°C
Requires Holder
7 A
Fast Blow
250 V
Cartridge, Glass
5mm x 20mm
200A
-
0.205" Dia x 0.787" L (5.20mm x 20.00mm)
FSC-5A
FUSE GLASS 5A 250VAC 5X20MM
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Quantity
Contact us
PCB Symbol, Footprint & 3D Model
-
-
-55°C ~ 90°C
Requires Holder
5 A
Fast Blow
250 V
Cartridge, Glass
5mm x 20mm
200A
-
FSC
cULus, UL 248
0.205" Dia x 0.787" L (5.20mm x 20.00mm)
FSC-2A
FUSE GLASS 2A 250VAC 5X20MM
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Quantity
Contact us
PCB Symbol, Footprint & 3D Model
-
-
-55°C ~ 90°C
Requires Holder
2 A
Fast Blow
250 V
Cartridge, Glass
5mm x 20mm
100A
-
FSC
cULus, UL 248
0.205" Dia x 0.787" L (5.20mm x 20.00mm)

About  Fuses

Fuses are specialized devices designed to interrupt the flow of electrical current in a circuit when the current exceeds a specific threshold, providing protection against overcurrent conditions. They consist of a conductor that is intentionally designed to melt and open the circuit when exposed to excessive current, thereby preventing damage to the connected components or equipment. When the current flowing through a fuse surpasses its rated capacity, the heat generated within the fuse causes the conducting element to melt or blow, creating an open circuit and stopping the flow of electricity. This action effectively protects the circuit and connected devices from potential damage caused by excessive current flow. Fuses are available in various types and configurations, including fast-acting and slow-blow fuses, each with different response times to overcurrent conditions. Fast-acting fuses respond quickly to overloads, while slow-blow fuses offer a delayed response and can withstand temporary current surges without blowing. The selection of the appropriate fuse type depends on the specific requirements of the electrical circuit being protected. By using fuses with the correct characteristics, the risk of damage to equipment and hazards resulting from excessive current flow can be minimized, ensuring the safe and reliable operation of electrical systems.