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Eaton SR-5-125mA-AP 125 mA 250 Vac Time-Delay Subminiature Fuse
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pEaton SR-5-125mA-AP — 125 mA, 250 V, time-delay fuse, 35 A at rated voltage, 50 Hz interrupting./p
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Eaton SR-5-125mA-AP 125 mA 250 Vac Time-Delay Subminiature Fuse
The SR-5-125mA-AP from Eaton carries 125 mA, rated 250 Vac, uses a time-delay element.
Technical Data
| Parameter | Rating |
|---|---|
| Parameter | Value |
| Orderable part number | SR-5-125mA-AP (-AP = 1,000 pcs ammo pack, 12.7 mm pitch) |
| Typical DC cold resistance | 1.6 Ohm |
| Agency | VDE 40020842 / cURus E19180 (JDYX8, JDYX2) / CCC / PSE / SEMKO / KC |
| Pre-arcing I2t (typical) | 0.0268 A2s |
| Typical voltage drop | 238 mV at rated current |
| Voltage rating | 250 Vac |
| Body / package | Radial leaded, time-delay, thru-hole, plastic cap and base, UL 94V0 |
| Design standard | IEC 60127-3 sheet 4 |
| Dissipated power at rating | 0.03 W |
| Characteristic | Time-delay (T) |
| Interrupting rating | 35 A at rated voltage, 50 Hz |
| Current rating | 125 mA |
Practical Notes
- Interrupting capability is 35 A at rated voltage, 50 Hz — 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.
- Working voltage must stay at or below 250 Vac; a lower-rated part is not a safe substitute.
- Do not upsize beyond 125 mA to stop nuisance trips — fix the cause instead.
Application Scenarios
Common installation contexts include:
- EV
- adapter
- surge
- transformer
Buying Notes
Order code SR-5-125mA-AP from Eaton, supplied in Radial leaded, time-delay, thru-hole, plastic cap and base, UL 94V0. Confirm the exact suffix before release.
Questions and Answers
What are the ratings of the SR-5-125mA-AP?
125 mA continuous at 250 Vac, interrupting rating 35 A at rated voltage, 50 Hz.
Is the SR-5-125mA-AP fast-acting or time-delay?
It is time-delay. It tolerates short inrush surges.
Can the SR-5-125mA-AP be used on a higher fault-current circuit?
No — its interrupting rating is 35 A at rated voltage, 50 Hz. Choose a part whose breaking capacity exceeds the prospective fault current.
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