| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
|
9,000 pcs
|
9000 pcs | On Request | 1 | On Request | On Request | On Request | On Request | 2026-02-16 21:33:16 | |
|
2,553 pcs
|
2553 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 | |
| Breaking Capacity AC | |
| Breaking Capacity DC | |
| Current Rating | |
| 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 | |
| Package / Case | |
| Response Time | |
| SVHC Present | |
| Tape & Reel | |
| Voltage Rating | |
| Voltage Rating AC | |
| Voltage Rating DC | |
| Width |
The Littelfuse 0438.250WR is a 250mA fast-acting surface mount fuse from the 438 Series. It is rated for 32VAC and 63VDC operation with a breaking capacity of 50A at both voltage ratings. The fuse features a nominal resistance of 2.218Ω and a nominal melting I²t of 0.0017 A²s.
The 438 Series is designed for over-current protection in circuits operating at high ambient temperatures up to 150°C. The ceramic fuse construction provides excellent temperature stability and performance reliability. The high I²t values enable high inrush current withstand capability.
This fuse is housed in a compact 0603 (1608 metric) surface mount package with dimensions of 1.54mm x 0.85mm x 0.50mm. It is RoHS compliant, lead-free, and halogen-free. The device is suitable for both leaded and lead-free reflow and wave soldering processes.
The 0438.250WR is recognized to UL/CSA/NMX 248-1 and UL/CSA/NMX 248-14, and conforms to EN 60127-1 and EN 60127-7. It carries CE and UKCA marks for European and UK market suitability.
The current rating is 250 mA (0.25 A).
The 0438.250WR is rated for 32 VAC and 63 VDC.
The breaking capacity is 50 A at both 32 VAC and 63 VDC.
The fuse has a fast-acting (fast blow) response time.
The fuse is housed in a 0603 (1608 metric) surface mount package.
The operating temperature range is -55°C to 150°C.
Yes, it is RoHS3 compliant, 100% lead-free, and halogen-free.