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Littelfuse 0313003 313 Series 3.0 A 3AG Glass Tube Through-Hole Fuse
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pLittelfuse 0313003 — 3 A, 250 V, glass cartridge fuse, 10000A@125VAC interrupting./p
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Littelfuse 0313003 313 Series 3.0 A 3AG Glass Tube Through-Hole Fuse
Littelfuse 0313003 313 Series 3.0 A 3AG Glass Tube Through-Hole Fuse belongs to the Littelfuse range. It carries 3.0 A, rated 250 VAC, in a glass body.
Technical Data
| Parameter | Rating |
|---|---|
| Parameter | Value |
| Manufacturer / Series | Littelfuse / 313 Series |
| Part number | 0313003 |
| Fuse characteristic | time-delay (Slo-Blo®) |
| Rated current | 3.0 A |
| Voltage rating | 250 VAC |
| Interrupting rating | 10000A@125VAC |
| Nominal cold resistance | 0.05925 Ω |
| Nominal melting I²t | 200 A²·s |
| Package / mounting | 3AG glass tube (6.3 × 32 mm) |
| Operating temperature | 2 °C |
| Agency / environmental | UL 248-14 / IEC 60127-2 compliant, RoHS compliant and lead-free |
Design Notes
- Interrupting capability is 10000A@125VAC — confirm the circuit's prospective fault current stays below this.
- Glass body lets you inspect the element after a fault.
- Best kept for lower fault-current circuits where visual diagnosis matters.
- Working voltage must stay at or below 250 VAC; a lower-rated part is not a safe substitute.
- Do not upsize beyond 3.0 A to stop nuisance trips — fix the cause instead.
Where It Is Used
Typical places this fuse turns up:
- power supply
- SMPS
- adapter
- industrial control
- lighting
- appliance
Ordering Details
Order code 0313003 from Littelfuse, supplied in 3AG glass tube (6.3 × 32 mm). Confirm the exact suffix before release.
Common Questions
What are the ratings of the 0313003?
3.0 A continuous at 250 VAC, interrupting rating 10000A@125VAC.
Can the 0313003 be used on a higher fault-current circuit?
No — its interrupting rating is 10000A@125VAC. Choose a part whose breaking capacity exceeds the prospective fault current.
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