# RXEF050-AP Littelfuse Inc. | Circuit Protection | DigiKey

**Manufacturer:** Littelfuse Inc  
**Brand:** Littelfuse Inc.  
**MPN:** `RXEF050-AP`

## Specifications

| Attribute | Value |
| --- | --- |
| Brand name | Littelfuse Inc. |
| Manufacturer name | Littelfuse Inc. |
| Manufacturer | Littelfuse Inc. |
| DimensionUnit | inch |
| Extra Product Name | RXEF050-AP Littelfuse Inc. \| Circuit Protection \| DigiKey |
| atoms | 1 |
| extraShipping | 0 |
| height | 0.539 |
| height_Attrib | Height - Seated (Max) |
| moq | 1 |
| MPN | RXEF050-AP |
| multiple | 1 |
| packaging | Cut Tape (CT) |
| qtyInStock | 9905 |
| SKU | 5015966 |
| snippet | Polymeric PTC Resettable Fuse 72V 500 mA Ih Through Hole Radial, Disc |
| tariff | 1.2 |
| tierMinQty1 | 1 |
| tierMinQty10 | 4,000 |
| tierMinQty2 | 5 |
| tierMinQty3 | 10 |
| tierMinQty4 | 50 |
| tierMinQty5 | 100 |
| tierMinQty6 | 250 |
| tierMinQty7 | 500 |
| tierMinQty8 | 1,000 |
| tierMinQty9 | 2,000 |
| tierPrice1 | 0.576 |
| tierPrice10 | 0.19512 |
| tierPrice2 | 0.5544 |
| tierPrice3 | 0.5364 |
| tierPrice4 | 0.4512 |
| tierPrice5 | 0.37464 |
| tierPrice6 | 0.34056 |
| tierPrice7 | 0.289488 |
| tierPrice8 | 0.255432 |
| tierPrice9 | 0.19867 |
| Category | Circuit Protection |
| Mfr | Littelfuse Inc. |
| Series | PolySwitch?, RXEF |
| Package | Cut Tape (CT) |
| Product Status | Active |
| Type | Polymeric |
| Voltage - Max | 72V |
| Current - Max | 40 A |
| Current - Hold (Ih) (Max) | 500 mA |
| Current - Trip (It) | 1 A |
| Time to Trip | 4 s |
| Resistance - Initial (Ri) (Min) | 500 mOhms |
| Resistance - Post Trip (R1) (Max) | 1.17 Ohms |
| Operating Temperature | -40?C ~ 85?C |
| Ratings | - |
| Mounting Type | Through Hole |
| Package / Case | Radial, Disc |
| Size / Dimension | 0.311" Dia x 0.118" T (7.90mm x 3.00mm) |
| Height - Seated (Max) | 0.539" (13.70mm) |
| Thickness (Max) | - |
| Lead Spacing | 0.199" (5.05mm) |
| Approval Agency | CQC, CSA, TUV, UL |

## Distributor availability

| Distributor | SKU | Price (USD) | Qty | Stock | MOQ |
| --- | --- | --- | --- | --- | --- |
| Digi-Key | 5015966 | 0.576 | 1 | 9905 | 1 |
| Newark | 40K8553 |  |  | None | 1 |
| Newark | 34AC5280 | 0.248 | 1 | None | 2000 |
| iodParts | RXEF050-AP |  |  | 1036 | 1 |
| Digi-Key | 5268546 | 0.506 | 1 | 1941 | 1 |
| Mouser | 650-RXEF050-AP | 0.46 | 1 | 2657 | 1 |
| Arrow | RXEF050-AP |  |  | None | 2000 |

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Structured data: `/python/html6/product/500/209000000/209413000/part_--RXEF050AP---LittelfuseInc--14308a311d.json`  
Search API: https://www.dataalchemy.com/api/  
MCP server: https://www.dataalchemy.com/mcp