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Eaton 6125FA1A 1 A Ceramic Fuse, Quick-Blow, 125 Vac
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pEaton 6125FA1A — 1 A, 125 V, fast-acting ceramic cartridge fuse, 50 A at 125 Vac; 300 A at 125 Vdc; 10,000 A at 86 Vdc interrupting./p
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Eaton 6125FA1A 1 A Ceramic Fuse, Quick-Blow, 125 Vac
Eaton 6125FA1A 1 A Ceramic Fuse, Quick-Blow, 125 Vac belongs to the Eaton range. It carries 1 A, rated 125 Vac / 125 Vdc / 86 Vdc, in a ceramic body.
Technical Data
| Parameter | Rating |
|---|---|
| Part number | 6125FA1A |
| Ordering code | TR2/6125FA1A |
| Packaging | 5,000 pcs on 12 mm tape-and-reel, 13 in (330 mm) reel, EIA-481 |
| Typical voltage drop | 0.17 V |
| Interrupting rating | 50 A at 125 Vac; 300 A at 125 Vdc; 10,000 A at 86 Vdc |
| Design standard | EIA/IS-722 |
| Terminations | nickel/silver plated end terminations, solder immersion compatible |
| Typical melting I2t | 0.14 A²s |
| Agency approval | CSA component acceptance 053787 C 000, Class 1422-30; UL Recognition Guide JDYX2, File E19180 |
| Voltage rating | 125 Vac / 125 Vdc / 86 Vdc |
| Package | 6.3 x 2.5 mm (2410 imperial / 6125 metric) |
| Typical cold resistance | 0.11 Ω |
| Rated current | 1 A |
Design Notes
- Interrupting capability is 50 A at 125 Vac; 300 A at 125 Vdc; 10,000 A at 86 Vdc — confirm the circuit's prospective fault current stays below this.
- Ceramic body holds higher breaking capacity than glass at the same footprint.
- It is the usual choice where prospective fault current is high.
- Working voltage must stay at or below 125 Vac / 125 Vdc / 86 Vdc; a lower-rated part is not a safe substitute.
- Do not upsize beyond 1 A to stop nuisance trips — fix the cause instead.
Where It Is Used
Typical places this fuse turns up:
- EV
- surge
Ordering Details
Order code 6125FA1A from Eaton, supplied in 6.3 x 2.5 mm (2410 imperial / 6125 metric). Confirm the exact suffix before release.
Common Questions
What are the ratings of the 6125FA1A?
1 A continuous at 125 Vac / 125 Vdc / 86 Vdc, interrupting rating 50 A at 125 Vac; 300 A at 125 Vdc; 10,000 A at 86 Vdc.
Can the 6125FA1A be used on a higher fault-current circuit?
No — its interrupting rating is 50 A at 125 Vac; 300 A at 125 Vdc; 10,000 A at 86 Vdc. Choose a part whose breaking capacity exceeds the prospective fault current.
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