| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
|
15,000 pcs
|
15000 pcs | On Request | 1 | On Request | On Request | 22+ | On Request | On Request | |
|
5,700 pcs
|
5700 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
| Category | |
| Manufacturer Name | |
| Approval Agency | |
| Breaking Capacity @ Rated Voltage | |
| Current Rating (Amps) | |
| Fuse Type | |
| Halogen Free | |
| Height | |
| Length | |
| Melting I²t | |
| Mounting Type | |
| Nominal Power Dissipation | |
| Nominal Resistance | |
| Nominal Voltage Drop | |
| Operating Temperature | |
| Response Time | |
| Tape & Reel | |
| Voltage Rating | |
| Voltage Rating DC | |
| Width |
The Littelfuse 0437004.WR is a 4A fast-acting surface mount fuse from the 437 Series. It is rated for 32VAC and 35VDC with a breaking capacity of 50A at rated voltage. The fuse has a nominal melting I²t of 1.024 A²s and a nominal resistance of 0.022 ohms. It operates over a temperature range of -55°C to 150°C.
This fuse is designed for board-level overcurrent protection in circuits that may encounter high ambient temperatures. Its fast-acting response time ensures quick disconnection during fault conditions. The 1206 (3216 Metric) package is suitable for surface mount assembly, with dimensions of 3.20mm x 1.63mm x 0.82mm.
The 0437004.WR is 100% lead-free, halogen-free, and RoHS compliant. It is recognized by CSA and UR agencies. The fuse is suitable for both leaded and lead-free reflow/wave soldering processes. Typical applications include power supplies, industrial controls, and consumer electronics where reliable overcurrent protection is required.
| Qty | Low | High |
|---|---|---|
| 1+ | $1.62 | $1.62 |
| 5+ | $1.46 | $1.46 |
| 10+ | $1.30 | $1.30 |
| 50+ | $1.09 | $1.09 |
| 100+ | $0.99 | $0.99 |
| 250+ | $0.94 | $0.94 |
| 500+ | $0.87 | $0.87 |
| 1,000+ | $0.72 | $0.72 |
| 3,000+ | $0.63 | $0.63 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
4 A.
32 VAC and 35 VDC.
50 A at rated voltage.
Fast Blow (fast-acting).
1206 (3216 Metric).
-55°C to 150°C.
1.024 A²s.