Fuses (results: 1705)

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0154.750DR Littelfuse Fuse Surface mount fuse: ultra rapid; ceramic type; SMD; 2410; current: 750mA; voltage: 125VAC; 125VDC; with holder; dimensions: 9,9x3,8x5mm
0154.750DR RoHS || 0154.750DR || 0154.750DR Littelfuse Fuse Rys.0154
Manufacturer:
LITTELFUSE
Manufacturer part number:
0154.750DR RoHS
Case style:
Rys.0154
Datasheet
In stock:
100 pcs.
Quantity of pieces 1+ 5+ 20+ 100+ 400+
Net price (EUR) 1,1877 0,8316 0,7075 0,6466 0,6255
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Packaging:
100
Quantity (multiple 1)
 
Manufacturer:
LITTELFUSE
Manufacturer part number:
0154.750DR
Case style:
Rys.0154
 
External warehouse:
825 pcs.
Quantity of pieces 25+ (Need a significantly larger quantity? Ask for price).
Net price (EUR) 0,8730
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Packaging:
25
Delivery within 4-7 business days.
Minimum order amount
must exceed 20 Euro.
SF70R0 SCHOTT Fuse Thermal fuse; 73°C; current: 15A; voltage: 250VAC; axial; dimensions: 4x8,5mm
SF70R0 RoHS || SF70R0 || SF70R0 SCHOTT Fuse Rys.BT/15a-N
Manufacturer:
NEC
Manufacturer part number:
SF70R0 RoHS
Case style:
Rys.BT/15a-N
 
In stock:
80 pcs.
Quantity of pieces 2+ 10+ 30+ 100+ 400+
Net price (EUR) 0,7801 0,4896 0,4076 0,3631 0,3397
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Packaging:
100
Quantity (multiple 1)
 
Manufacturer:
SCHOTT
Manufacturer part number:
SF70R0
Case style:
Rys.BT/15a-N
 
External warehouse:
740 pcs.
Quantity of pieces 1+ (Need a significantly larger quantity? Ask for price).
Net price (EUR) 0,3397
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Packaging:
1
Delivery within 4-7 business days.
Minimum order amount
must exceed 20 Euro.
Fast-acting fuse; 20A Ceramic fast-acting fuse; SMD; current: 20A; dimensions: 12,45x4,5mm; operating temperature: -55°C~125°C
R1245F.20 RoHS || Fast-acting fuse; 20A Rys.bezp.1245C
Manufacturer:
Chipfuse
Manufacturer part number:
R1245F.20 RoHS
Case style:
Rys.bezp.1245C
 
In stock:
200 pcs.
Quantity of pieces 1+ 5+ 30+ 200+ 400+
Net price (EUR) 0,8855 0,5880 0,4685 0,4287 0,4217
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Packaging:
200
Quantity (multiple 1)
Time-lag fuse; 20A; Ceramic time-lag fuse; SMD; current: 20A; dimensions: 12,45x4,5mm; operating temperature: -55°C~125°C
R1245T.20 RoHS || Time-lag fuse; 20A; Rys.bezp.1245C
Manufacturer:
Chipfuse
Manufacturer part number:
R1245T.20 RoHS
Case style:
Rys.bezp.1245C
 
In stock:
200 pcs.
Quantity of pieces 1+ 5+ 30+ 200+ 400+
Net price (EUR) 0,8855 0,5880 0,4685 0,4287 0,4217
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Packaging:
200
Quantity (multiple 1)
0466.375NR Littelfuse Fuse Ultra rapid fuse; ceramic type; SMD; 1206; current: 375mA; voltage: 125VAC; 125VDC operating temperature: -55°C ~90°C
0466.375NRHF RoHS || 0466.375NR Littelfuse Fuse Rys.466LT
Manufacturer:
LITTELFUSE
Manufacturer part number:
0466.375NRHF RoHS
Case style:
Rys.466LT
Datasheet
In stock:
100 pcs.
Quantity of pieces 2+ 10+ 50+ 300+ 900+
Net price (EUR) 0,8504 0,5388 0,4240 0,3818 0,3701
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Packaging:
300
Quantity (multiple 1)
Auto Fuse: MINI; 5A Auto Fuse: current: 5A; MINI; colour: brown; dimensions: 10,9mm; voltage: 32VDC
Auto Fuse: MINI; 5A Rys297
Manufacturer:
AFS
Manufacturer part number:
 
Case style:
Rys297
 
In stock:
790 pcs.
Quantity of pieces 5+ 20+ 100+ 500+ 2000+
Net price (EUR) 0,1443 0,0684 0,0382 0,0288 0,0262
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Packaging:
100/2000
Quantity (multiple 1)
     
Item in delivery
Estimated time: 2025-06-30
Quantity of pieces: 2000
Resettable fuse; 0.05A Resettable fuse; THT; current: 0.05A; voltage: 130V; r=5.1mm; endurance: 100cycles; operating temperature: -40÷85°C
Resettable fuse; 0.05A Rys.BP130-050
Manufacturer:
SLC
Manufacturer part number:
 
Case style:
Rys.BP130-050
 
In stock:
568 pcs.
Quantity of pieces 5+ 20+ 100+ 300+ 1000+
Net price (EUR) 0,2413 0,1319 0,0864 0,0747 0,0689
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Packaging:
1000
Quantity (multiple 1)
179020.0,063 Siba Fuse Fuse: fast-acting; glass type; WTA; current: 63mA; voltage: 250V; dimensions: 5x20mm equivalent: 0034.1530
179 120 63mA RoHS || 179020.0,063 Siba Fuse Rys.bezp5x20
Manufacturer:
SIBA
Manufacturer part number:
179 120 63mA RoHS
Case style:
Rys.bezp5x20
Datasheet
In stock:
900 pcs.
Quantity of pieces 3+ 10+ 40+ 100+ 700+
Net price (EUR) 0,2694 0,1710 0,1237 0,1096 0,0977
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Packaging:
10/100/1000
Quantity (multiple 1)
7012540.1,25 Siba Fuse Fuse: ultra rapid, ceramic type; current: 1,25A; voltage: 700VAC; dimensions: 6,3x32mm
7012540.1,25 RoHS || 7012540.1,25 || 7012540.1,25 Siba Fuse Rys.bezpceramss 6.3x32
Manufacturer:
SIBA
Manufacturer part number:
7012540.1,25 RoHS
Case style:
Rys.bezpceramss 6.3x32
Datasheet
In stock:
30 pcs.
Quantity of pieces 1+ 3+ 10+ 50+ 200+
Net price (EUR) 1,2416 0,9487 0,7848 0,6887 0,6536
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Packaging:
10/50
Quantity (multiple 1)
 
Manufacturer:
SIBA
Manufacturer part number:
7012540.1,25
Case style:
Rys.bezpceramss 6.3x32
 
External warehouse:
80 pcs.
Quantity of pieces 1+ (Need a significantly larger quantity? Ask for price).
Net price (EUR) 0,8617
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Packaging:
1
Delivery within 4-7 business days.
Minimum order amount
must exceed 20 Euro.
157000.0,25 Siba Fuse Square surface mount fuse: fast-acting; ceramic type: SMD; 2410; current: 250mA; voltage: 125VAC; 125VDC
157 000 250mA RoHS || 157000.0,25GT || 157000.0,25 Siba Fuse Rys.BEZPSMD2.6x6.1
Manufacturer:
SIBA
Manufacturer part number:
157 000 250mA RoHS
Case style:
Rys.BEZPSMD2.6x6.1
 
In stock:
150 pcs.
Quantity of pieces 2+ 5+ 20+ 100+ 400+
Net price (EUR) 0,6466 0,4802 0,3561 0,2999 0,2811
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Stock available
While the stock lasts
Packaging:
20
Quantity (multiple 1)
 
Manufacturer:
SIBA
Manufacturer part number:
157000.0,25GT
Case style:
Rys.BEZPSMD2.6x6.1
 
External warehouse:
2500 pcs.
Quantity of pieces 100+ (Need a significantly larger quantity? Ask for price).
Net price (EUR) 0,2811
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Stock available
While the stock lasts
Packaging:
100
Delivery within 4-7 business days.
Minimum order amount
must exceed 20 Euro.
Time-lag fuse; 25A; Ceramic time-lag fuse; SMD; current: 25A; dimensions: 12,45x4,5mm; operating temperature: -55°C~125°C
R1245T.25 RoHS || Time-lag fuse; 25A; Rys.bezp.1245C
Manufacturer:
Chipfuse
Manufacturer part number:
R1245T.25 RoHS
Case style:
Rys.bezp.1245C
 
In stock:
200 pcs.
Quantity of pieces 1+ 5+ 30+ 200+ 400+
Net price (EUR) 0,8855 0,5880 0,4685 0,4287 0,4217
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Packaging:
200
Quantity (multiple 1)
Fast-acting fuse; 25A Ceramic fast-acting fuse; SMD; current: 25A; dimensions: 12,45x4,5mm; operating temperature: -55°C~125°C
R1245F.25 RoHS || Fast-acting fuse; 25A Rys.bezp.1245C
Manufacturer:
Chipfuse
Manufacturer part number:
R1245F.25 RoHS
Case style:
Rys.bezp.1245C
 
In stock:
200 pcs.
Quantity of pieces 1+ 5+ 30+ 200+ 400+
Net price (EUR) 0,8855 0,5880 0,4685 0,4287 0,4217
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Packaging:
200
Quantity (multiple 1)
Square surface mount fuse: time-lag; 250mA Square surface mount fuse: time-lag; ceramic type; SMD; 2410; current: 250mA; voltage: 250VAC; equivalent: 158000.0,25; operating temperature: -55°C ~125°C
Square surface mount fuse: time-lag; 250mA Rys.bezp.2410Cz
Manufacturer:
Chipfuse
Manufacturer part number:
 
Case style:
Rys.bezp.2410Cz
 
In stock:
0 pcs.
Quantity of pieces 3+ 10+ 50+ 300+ 1500+
Net price (EUR) 0,2881 0,1851 0,1302 0,1106 0,1052
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Packaging:
1500
Quantity (multiple 1)
Chip fuse: fast acting: 750mA Surface mount chip fuse: fast-acting; glass type; SMD; 1206; current: 750mA; voltage: 72VDC; operating temperature: -55°C ~90°C
Chip fuse: fast acting: 750mA Rys.bezp.1206Ss
Manufacturer:
Chipfuse
Manufacturer part number:
 
Case style:
Rys.bezp.1206Ss
 
In stock:
2300 pcs.
Quantity of pieces 5+ 20+ 100+ 500+ 3000+
Net price (EUR) 0,2460 0,1246 0,0754 0,0597 0,0546
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Packaging:
3000
Quantity (multiple 1)
56000001009 Littelfuse Holder Fuse holder; TE5; TR5; 6,3A; 250V; r=5,08mm; PCB; white; dimensions: 9,5x4,3mm
56000001009 RoHS || 56000001009 || 56000001009 Littelfuse Holder Rys.56000001009
Manufacturer:
LITTELFUSE
Manufacturer part number:
56000001009 RoHS
Case style:
Rys.56000001009
Datasheet
In stock:
100 pcs.
Quantity of pieces 1+ 5+ 20+ 100+ 500+
Net price (EUR) 0,9487 0,6325 0,5224 0,4709 0,4521
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Packaging:
100
Quantity (multiple 1)
 
Manufacturer:
LITTELFUSE
Manufacturer part number:
56000001009
Case style:
Rys.56000001009
 
External warehouse:
64331 pcs.
Quantity of pieces 500+ (Need a significantly larger quantity? Ask for price).
Net price (EUR) 0,4521
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Packaging:
500
Delivery within 4-7 business days.
Minimum order amount
must exceed 20 Euro.
 
Manufacturer:
LITTELFUSE
Manufacturer part number:
56000001009
Case style:
Rys.56000001009
 
External warehouse:
51579 pcs.
Quantity of pieces 300+ (Need a significantly larger quantity? Ask for price).
Net price (EUR) 0,4521
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Packaging:
100
Delivery within 4-7 business days.
Minimum order amount
must exceed 20 Euro.
Chip fuse: slow blow; 2A Surface mount chip fuse: slow blow; glass type; SMD; 1206; current: 2A; voltage: 72VDC; replacement: 0685T2000-01; operating temperature: -55°C ~90°C
Chip fuse: slow blow; 2A Rys.bezp.1206Sz
Manufacturer:
Chipfuse
Manufacturer part number:
 
Case style:
Rys.bezp.1206Sz
 
In stock:
3000 pcs.
Quantity of pieces 5+ 20+ 100+ 500+ 3000+
Net price (EUR) 0,2460 0,1246 0,0754 0,0597 0,0546
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Packaging:
3000
Quantity (multiple 1)
Time-lag fuse; 30A; Ceramic time-lag fuse; SMD; current: 30A; dimensions: 12,45x4,5mm; operating temperature: -55°C~125°C
R1245T.30 RoHS || Time-lag fuse; 30A; Rys.bezp.1245C
Manufacturer:
Chipfuse
Manufacturer part number:
R1245T.30 RoHS
Case style:
Rys.bezp.1245C
 
In stock:
200 pcs.
Quantity of pieces 1+ 5+ 30+ 200+ 400+
Net price (EUR) 0,8855 0,5880 0,4685 0,4287 0,4217
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Packaging:
200
Quantity (multiple 1)
154000.0,5 Siba Fuse Ultra rapid fuse; ceramic type; SMD; 1206; current: 500mA; voltage: 63VDC operating temperature: -55°C ~90°C
154000.0,5GT-1K RoHS || 154000.0,5 Siba Fuse Rys.BEZP.SMD1206
Manufacturer:
SIBA
Manufacturer part number:
154000.0,5GT-1K RoHS
Case style:
Rys.BEZP.SMD1206
Datasheet
In stock:
50 pcs.
Quantity of pieces 2+ 10+ 30+ 100+ 400+
Net price (EUR) 0,8293 0,5201 0,4334 0,3842 0,3608
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Packaging:
100
Quantity (multiple 1)
Fast acting fuse; 250mA Square surface mount fuse: fast-acting; ceramic type: SMD; 2410; current: 250mA; voltage: 250VAC; equivalent: 0679L0250-01; operating temperature: -55°C ~125°C
Fast acting fuse; 250mA Rys.bezp.2410Cs
Manufacturer:
Chipfuse
Manufacturer part number:
 
Case style:
Rys.bezp.2410Cs
 
In stock:
1065 pcs.
Quantity of pieces 3+ 10+ 50+ 300+ 1500+
Net price (EUR) 0,2600 0,1656 0,1167 0,0991 0,0942
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Packaging:
1500
Quantity (multiple 1)
10303 5A B&P Auto Fuse Auto Fuse: current: 5A; MINI; colour: brown; dimensions: 10,9mm; voltage: 32VDC
10303 5A MINI RoHS || 10303 5A B&P Auto Fuse Rys.MA05.0 BP
Manufacturer:
B&P
Manufacturer part number:
10303 5A MINI RoHS
Case style:
Rys.MA05.0 BP
 
In stock:
800 pcs.
Quantity of pieces 5+ 30+ 200+ 1000+ 5000+
Net price (EUR) 0,2153 0,0860 0,0501 0,0417 0,0391
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Packaging:
1000
Quantity (multiple 1)
179020.0,08 Siba Fuse Fuse: fast-acting; glass type; WTA; current: 80mA; voltage: 250V; dimensions: 5x20mm equivalent: 0034.1531
179 020 80mA RoHS || 179020.0,08 Siba Fuse Rys.bezp5x20
Manufacturer:
SIBA
Manufacturer part number:
179 020 80mA RoHS
Case style:
Rys.bezp5x20
Datasheet
In stock:
550 pcs.
Quantity of pieces 3+ 10+ 40+ 100+ 700+
Net price (EUR) 0,2694 0,1710 0,1237 0,1096 0,0977
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Packaging:
10/100/1000
Quantity (multiple 1)
Chip fuse: fast acting: 1A Surface mount chip fuse: fast-acting; glass type; SMD; 1206; current: 1A; voltage: 72VDC; operating temperature: -55°C ~90°C
Chip fuse: fast acting: 1A Rys.bezp.1206Ss
Manufacturer:
Chipfuse
Manufacturer part number:
 
Case style:
Rys.bezp.1206Ss
 
In stock:
3000 pcs.
Quantity of pieces 5+ 20+ 100+ 500+ 3000+
Net price (EUR) 0,2460 0,1246 0,0754 0,0597 0,0546
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Packaging:
3000
Quantity (multiple 1)
Resettable fuse; 0.05A Resettable fuse; THT; current: 0.05A; voltage: 250V; r=5.1mm; endurance: 100cycles; operating temperature: -40÷85°C
Resettable fuse; 0.05A Rys.BP250-050
Manufacturer:
SLC
Manufacturer part number:
 
Case style:
Rys.BP250-050
 
In stock:
6750 pcs.
Quantity of pieces 3+ 20+ 100+ 300+ 1000+
Net price (EUR) 0,2600 0,1377 0,1068 0,0986 0,0944
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Packaging:
1000
Quantity (multiple 1)
Chip fuse: slow blow; 2.5A Surface mount chip fuse: slow blow; glass type; SMD; 1206; current: 2.5A; voltage: 72VDC; replacement: 0685T2500-01; operating temperature: -55°C ~90°C
Chip fuse: slow blow; 2.5A Rys.bezp.1206Sz
Manufacturer:
Chipfuse
Manufacturer part number:
 
Case style:
Rys.bezp.1206Sz
 
In stock:
2810 pcs.
Quantity of pieces 5+ 20+ 100+ 500+ 3000+
Net price (EUR) 0,2460 0,1246 0,0754 0,0597 0,0546
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Packaging:
3000
Quantity (multiple 1)
7012540.2 Siba Fuse Fuse: ultra rapid, ceramic type; current: 2A; voltage: 1000VAC; dimensions: 6,3x32mm
7012540.2 RoHS || 7012540.2 || 7012540.2 Siba Fuse Rys.bezpceramss 6.3x32
Manufacturer:
SIBA
Manufacturer part number:
7012540.2 RoHS
Case style:
Rys.bezpceramss 6.3x32
Datasheet
In stock:
16 pcs.
Quantity of pieces 1+ 3+ 10+ 50+ 200+
Net price (EUR) 1,6375 1,2509 1,0354 0,9066 0,8621
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Packaging:
10/100
Quantity (multiple 1)
 
Manufacturer:
SIBA
Manufacturer part number:
7012540.2
Case style:
Rys.bezpceramss 6.3x32
 
External warehouse:
2710 pcs.
Quantity of pieces 1+ (Need a significantly larger quantity? Ask for price).
Net price (EUR) 0,8621
Add to comparison tool
Packaging:
1
Delivery within 4-7 business days.
Minimum order amount
must exceed 20 Euro.
0154001.DR Littelfuse Fuse Surface mount fuse: ultra rapid; ceramic type; SMD; 2410; current: 1A; voltage: 125VAC; 125VDC; with holder; dimensions: 9,9x3,8x5mm
0154001.DR RoHS || 0154001.DR || 0154001.DR Littelfuse Fuse Rys.0154
Manufacturer:
LITTELFUSE
Manufacturer part number:
0154001.DR RoHS
Case style:
Rys.0154
 
In stock:
30 pcs.
Quantity of pieces 1+ 5+ 20+ 100+ 300+
Net price (EUR) 1,6047 1,1900 1,0401 0,9675 0,9441
Add to comparison tool
Packaging:
100
Quantity (multiple 1)
 
Manufacturer:
LITTELFUSE
Manufacturer part number:
0154001.DR
Case style:
Rys.0154
 
External warehouse:
7500 pcs.
Quantity of pieces 1500+ (Need a significantly larger quantity? Ask for price).
Net price (EUR) 0,9441
Add to comparison tool
Packaging:
1500
Delivery within 4-7 business days.
Minimum order amount
must exceed 20 Euro.
 
Manufacturer:
LITTELFUSE
Manufacturer part number:
0154001.DR
Case style:
Rys.0154
 
External warehouse:
1450 pcs.
Quantity of pieces 25+ (Need a significantly larger quantity? Ask for price).
Net price (EUR) 0,9441
Add to comparison tool
Packaging:
25
Delivery within 4-7 business days.
Minimum order amount
must exceed 20 Euro.
179120.0,063 Siba Fuse Fuse: time-lag; glass type; current: 63mA; voltage: 250VAC; dimensions: 5x20mm equivalents: S506-63-R/BK1; 0034.3105
179 120 63mA RoHS || 179120.0,063 || 179120.0,063 Siba Fuse Rys.bezp5x20
Manufacturer:
SIBA
Manufacturer part number:
179 120 63mA RoHS
Case style:
Rys.bezp5x20
Datasheet
In stock:
2090 pcs.
Quantity of pieces 3+ 10+ 40+ 100+ 700+
Net price (EUR) 0,2694 0,1710 0,1237 0,1096 0,0977
Add to comparison tool
Packaging:
10
Quantity (multiple 1)
 
Manufacturer:
SIBA
Manufacturer part number:
179 120 63mA RoHS
Case style:
Rys.bezp5x20
Datasheet
In stock:
50 pcs.
Quantity of pieces 3+ 10+ 20+ 50+
Net price (EUR) 0,2694 0,1567 0,1235 0,0977
Add to comparison tool
Packaging:
50
Quantity (multiple 1)
 
Manufacturer:
SIBA
Manufacturer part number:
179120.0,063
Case style:
Rys.bezp5x20
 
External warehouse:
1360 pcs.
Quantity of pieces 10+ (Need a significantly larger quantity? Ask for price).
Net price (EUR) 0,2877
Add to comparison tool
Packaging:
10
Delivery within 4-7 business days.
Minimum order amount
must exceed 20 Euro.
Time-lag fuse; 40A; Ceramic time-lag fuse; SMD; current: 40A; dimensions: 12,45x4,5mm; operating temperature: -55°C~125°C
R1245T.40 RoHS || Time-lag fuse; 40A; Rys.bezp.1245C
Manufacturer:
Chipfuse
Manufacturer part number:
R1245T.40 RoHS
Case style:
Rys.bezp.1245C
 
In stock:
195 pcs.
Quantity of pieces 1+ 5+ 30+ 200+ 400+
Net price (EUR) 0,8855 0,5880 0,4685 0,4287 0,4217
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Packaging:
200
Quantity (multiple 1)
Fast acting fuse; 300mA Square surface mount fuse: fast-acting; ceramic type; SMD; 2410; current: 300mA; voltage: 250VAC; operating temperature: -55°C ~125°C
Fast acting fuse; 300mA Rys.bezp.2410Cs
Manufacturer:
Chipfuse
Manufacturer part number:
 
Case style:
Rys.bezp.2410Cs
 
In stock:
1000 pcs.
Quantity of pieces 3+ 20+ 100+ 300+ 1000+
Net price (EUR) 0,2600 0,1375 0,1066 0,0984 0,0942
Add to comparison tool
Packaging:
1000
Quantity (multiple 1)
189100.0,25 Siba Fuse Fuse: time-lag, glass type; current: 250mA; voltage: 250V; dimensions: 6.3x32mm
189100 250mA RoHS || 189100.0,25 Siba Fuse Rys.bezp6.3x32
Manufacturer:
SIBA
Manufacturer part number:
189100 250mA RoHS
Case style:
Rys.bezp6.3x32
Datasheet
In stock:
210 pcs.
Quantity of pieces 3+ 10+ 40+ 100+ 600+
Net price (EUR) 0,3233 0,2106 0,1551 0,1382 0,1242
Add to comparison tool
Packaging:
10/100/300
Quantity (multiple 1)
1    1  2  3  4  5  6  7  8  9    57

Fuses

To ensure that devices operate correctly, they must be provided with suitable working conditions. Fuses protect circuits and installations from harmful factors, making them a common feature in most equipment. Our store offers components with various designs, allowing for the selection of components suited to many applications. 

What is the Function of Fuses?

Fuses are crucial components in circuits, protecting them from excessive current, high or low temperatures, and other adverse conditions. The role of these elements is to interrupt the circuit when the values that define the safe operating conditions of the device are exceeded. Despite their critical function, fuses are relatively simple in design and operation, resulting in generally low prices.

Fuses can be found in virtually every electrical and electronic device. They are also used in vehicles and buildings to protect existing installations. Electrical fuses are also utilized by hobbyists working with electronics, as they are vital components in both simple and complex circuits. 

Fuses – Classification by Application

There are various types of fuses available on the market, making it sometimes challenging to choose the right one. It's essential to understand the basic classification of these components. The simplest distinction considers the application area of the fuses. We can primarily differentiate elements intended for vehicles, various electronic circuits, electrical installations in buildings, and other specialized applications.

Types of Fuses – Classification by Structure and Function

Another important classification divides fuses into single-use and reusable types. The first category includes cartridge fuses, where the filament melts when overheated by excessive current flow. The second category includes polymeric fuses, which must cool down after interrupting the circuit before they can operate again, and reusable electrical fuses, which are systems comprising several components, such as transistors or flip-flops.

There is also a distinct group known as thermal fuses. Unlike the aforementioned components, these disconnect the circuit not due to excessive current flow but when there is an excessive rise in temperature. They are thus used in devices that may be damaged by overheating.