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Eaton 1025TD750-R 750 mA Ceramic Fuse, Time-Lag, 250 Vac
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pEaton 1025TD750-R — 750 mA, 250 V, time-delay ceramic cartridge fuse, 50 A AC; 50 A 125 Vdc interrupting./p
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Eaton 1025TD750-R 750 mA Ceramic Fuse, Time-Lag, 250 Vac
The 1025TD750-R from Eaton carries 750 mA, rated 250 Vac, uses a time-delay element, in a ceramic body.
Technical Data
| Parameter | Rating |
|---|---|
| Part number | 1025TD750-R |
| Ordering code | TR2/1025TD750-R |
| Packaging | 2,500 pcs on 24 mm tape-and-reel, 13 in (330 mm) reel, EIA-481 |
| Design standard | EIA/IS-722 |
| Voltage rating | 250 Vac |
| Rated current | 750 mA |
| Voltage rating, DC | 125 Vdc |
| Interrupting rating | 50 A AC; 50 A 125 Vdc |
| Typical melting I2t | 0.93 A²s |
| Typical cold resistance | 0.317 Ω |
| Typical voltage drop | 400 mV |
| Agency approval | UL Recognition, Guide JDYX2, File E19180 (250 mA - 5 A); CSA component acceptance |
| Package | 10.29 x 2.77 mm (4010 imperial / 1025 metric) |
| Terminations | silver-plated end terminations, solder immersion compatible |
Practical Notes
- Interrupting capability is 50 A AC; 50 A 125 Vdc — confirm the circuit's prospective fault current stays below this.
- Time-delay element rides through motor starting and capacitive inrush without nuisance opening.
- Startup surges of several times rated current are tolerated for a short window.
- 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 250 Vac; a lower-rated part is not a safe substitute.
- Do not upsize beyond 750 mA to stop nuisance trips — fix the cause instead.
Application Scenarios
Common installation contexts include:
- motor drive
- EV
- adapter
- surge
Buying Notes
Order code 1025TD750-R from Eaton, supplied in 10.29 x 2.77 mm (4010 imperial / 1025 metric). Confirm the exact suffix before release.
Questions and Answers
What are the ratings of the 1025TD750-R?
750 mA continuous at 250 Vac, interrupting rating 50 A AC; 50 A 125 Vdc.
Is the 1025TD750-R fast-acting or time-delay?
It is time-delay. It tolerates short inrush surges.
Can the 1025TD750-R be used on a higher fault-current circuit?
No — its interrupting rating is 50 A AC; 50 A 125 Vdc. Choose a part whose breaking capacity exceeds the prospective fault current.
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