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Littelfuse 40011250075 1.25 A Slo-Blo® / Time-Lag (T) TE5® 400 – Bulk 0075
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pLittelfuse 40011250075 — integrated circuit, TE5® radial box fuse; 7.5 mm lead pitch; Bulk, 250 V./p
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Littelfuse 40011250075 1.25 A Slo-Blo® / Time-Lag (T) TE5® 400 – Bulk 0075
Littelfuse 40011250075 1.25 A Slo-Blo® / Time-Lag (T) TE5® 400 – Bulk 0075 belongs to the Littelfuse range. It carries 1.25 A, rated 250 VAC, uses a time-delay element.
Technical Data
| Parameter | Rating |
|---|---|
| Parameter | Value |
| Manufacturer / Series | Littelfuse / TE5® 400 |
| Part number | 40011250075 |
| Fuse characteristic | Slo-Blo® / Time-Lag (T) |
| Rated current | 1.25 A |
| Rated voltage | 250 VAC |
| Interrupting capability | 130 A @ 250 VAC |
| Package | TE5® radial box fuse; 7.5 mm lead pitch; Bulk |
| Mounting method | Through Hole, Radial |
| Dimensions | 8.5 × 4.0 × 8.0 mm max; lead Ø0.6 mm |
| Lead pitch | 7.5 mm |
| Operating temperature | -40°C to +125°C |
| Approvals | cRUus E67006; CE/UKCA; CCC; KC; international approvals; PSE |
| Standards / compliance | IEC/EN/J/K 60127-1 & 60127-3; UL/CSA/NMX 248-1 & 248-14; cRUus; CCC; KC; international approvals |
| Environmental | RoHS; lead-free; halogen-free |
| Nominal cold resistance | 0.0562 Ω |
| Nominal melting I²t | 14.44 A²s |
| Packaging / order code | 0075: Bulk, 1,400 pcs; 7.5 mm lead pitch; 7.5 mm lead pitch configuration |
| Product status | Verify current orderability with Littelfuse / authorized distribution |
Design Notes
- Interrupting capability is 130 A @ 250 VAC — 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 1.25 A to stop nuisance trips — fix the cause instead.
Where It Is Used
Typical places this fuse turns up:
- EV
Ordering Details
Order code 40011250075 from Littelfuse, supplied in TE5® radial box fuse; 7.5 mm lead pitch; Bulk. Confirm the exact suffix before release.
Common Questions
What are the ratings of the 40011250075?
1.25 A continuous at 250 VAC, interrupting rating 130 A @ 250 VAC.
Is the 40011250075 fast-acting or time-delay?
It is time-delay. It tolerates short inrush surges.
Can the 40011250075 be used on a higher fault-current circuit?
No — its interrupting rating is 130 A @ 250 VAC. Choose a part whose breaking capacity exceeds the prospective fault current.
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