| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
|
5,756 pcs
|
5756 pcs | On Request | 1 | On Request | On Request | 14+ | On Request | On Request | |
|
5,756 pcs
|
5756 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
| Category | |
| Manufacturer Name | |
| AEC Qualified | |
| Approval Agency | |
| Automotive Grade | |
| Breaking Capacity @ Rated Voltage | |
| Current Rating (Amps) | |
| Fuse Type | |
| Halogen Free | |
| Height | |
| Industrial Grade | |
| Length | |
| Medical Grade | |
| Melting I²t | |
| Military Grade | |
| Mounting Type | |
| Nominal Power Dissipation | |
| Nominal Resistance | |
| Nominal Voltage Drop | |
| Operating Temperature | |
| Response Time | |
| SVHC Present | |
| Tape & Reel | |
| Termination Style | |
| Voltage Rating | |
| Voltage Rating DC | |
| Width |
The Littelfuse 0438004.WR is a 4A fast-acting surface mount fuse from the 438 Series, designed for overcurrent protection in high-temperature environments. It is rated for a maximum voltage of 32 VDC and 12 VAC, with a breaking capacity of 50A at rated voltage. The fuse offers a nominal resistance of 0.017Ω, a melting I²t of 0.692 A²s, and a voltage drop of 0.079V at rated current, with a power dissipation of 0.316W.
This fuse is housed in a 0603 (1608 Metric) package, measuring 1.54mm x 0.85mm x 0.50mm, and is surface mount compatible. It operates over a wide temperature range from -55°C to 150°C, making it suitable for demanding applications. The device is 100% lead-free, RoHS compliant, and halogen-free, with UL and CSA agency approvals.
Typical applications include overcurrent protection in power supplies, battery management circuits, and industrial control systems where high ambient temperature and inrush current withstand capability are required.
| Qty | Low | High |
|---|---|---|
| 1+ | $1.55 | $1.55 |
| 5+ | $1.37 | $1.37 |
| 10+ | $1.30 | $1.30 |
| 50+ | $1.05 | $1.05 |
| 100+ | $0.91 | $0.91 |
| 250+ | $0.87 | $0.87 |
| 500+ | $0.75 | $0.75 |
| 1,000+ | $0.69 | $0.69 |
| 3,000+ | $0.65 | $0.65 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
4 A.
Maximum 32 VDC and 12 VAC.
50 A at rated voltage.
Fast blow (fast-acting).
0603 (1608 Metric) surface mount package.
-55°C to 150°C.
CSA, UL, RoHS, Halogen-free.