| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
|
1,000 pcs
|
1000 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
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| Manufacturer Name | |
| Approval Agency | |
| Breaking Capacity @ Rated Voltage | |
| Current Rating (Amps) | |
| Fuse Type | |
| Halogen Free | |
| Lead Style | |
| Melting I²t | |
| Mounting Type | |
| Operating Temperature | |
| Package / Case | |
| Response Time | |
| Voltage Rating |
The Littelfuse 399 Series TE5 time-lag fuse (part number 40012500440) is a board mount fuse designed for through hole mounting in a radial box package. It is rated for 2.5A continuous current at 250VAC and 65VDC, with a breaking capacity of 130A at rated voltage. The fuse features a slow blow (time-lag) response, making it suitable for circuits with inrush currents.
Electrical characteristics include a nominal cold resistance of 0.017Ω measured at 10% of rated current and 25°C, and a maximum power dissipation of 520 mW at rated current. The melting integral (I²t) at 10× rated current is 23.13 A²s. The operating temperature range is -40°C to 85°C.
The fuse is housed in a flame-resistant encapsulated casing and is lead-free, halogen free, and RoHS compliant. It is intended for short circuit protection of sensitive electronic components and assemblies, such as IC chips.
| Qty | Low | High |
|---|---|---|
| 1+ | $1.95 | $1.95 |
| 5+ | $1.62 | $1.62 |
| 10+ | $1.49 | $1.49 |
| 50+ | $1.24 | $1.24 |
| 100+ | $1.14 | $1.14 |
| 250+ | $1.03 | $1.03 |
| 500+ | $0.95 | $0.95 |
| 1,400+ | $0.84 | $0.84 |
| 5,600+ | $0.81 | $0.81 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The current rating is 2.5 A.
The voltage rating is 250 VAC and 65 VDC.
The breaking capacity is 130 A at rated voltage.
The response time is slow blow (time-lag).
The fuse comes in a radial box package (Radial, Box).
The operating temperature range is -40°C to 85°C.
Yes, it is RoHS3 compliant, lead-free, and halogen free as stated in the datasheet.