# RXEF250-1 Littelfuse Inc. | Circuit Protection | DigiKey

**Manufacturer:** Littelfuse Inc  
**Brand:** Littelfuse Inc.  
**MPN:** `RXEF250-1`

## Specifications

| Attribute | Value |
| --- | --- |
| Brand name | Littelfuse Inc. |
| Manufacturer name | Littelfuse Inc. |
| Manufacturer | Littelfuse Inc. |
| Extra Product Name | RXEF250-1 Littelfuse Inc. \| Circuit Protection \| DigiKey |
| atoms | 1 |
| minimum | 1 |
| moq | 1 |
| MPN | RXEF250-1 |
| multiple | 1 |
| qtyInStock | 0 |
| SKU | RXEF250-1-ND |
| Mfr | Littelfuse Inc. |
| Part Status | Obsolete |
| Type | Polymeric |
| Voltage - Max | 72V |
| Operating Temperature | -40?C ~ 85?C |
| Ratings | - |
| Mounting Type | Through Hole |
| Package / Case | Radial, Disc |
| Size / Dimension | 0.819" Dia x 0.118" T (20.80mm x 3.00mm) |
| Height - Seated (Max) | 1.000" (25.40mm) |
| Thickness (Max) | - |
| Lead Spacing | 0.400" (10.15mm) |
| Approval Agency | CQC, CSA, TUV, UL |
| Current - Max | 40 A |
| Current - Hold (Ih) (Max) | 2.5 A |
| Current - Trip (It) | 5 A |
| Time to Trip | 15.6 s |
| Resistance - Initial (Ri) (Min) | 50 mOhms |
| Resistance - Post Trip (R1) (Max) | 130 mOhms |

## Distributor availability

| Distributor | SKU | Price (USD) | Qty | Stock | MOQ |
| --- | --- | --- | --- | --- | --- |
| Digi-Key | RXEF250-1-ND |  |  | None | 1 |
| Newark | 40K8563 |  |  | None | 2000 |
| Digi-Key | 1114066 |  |  | None | 1 |

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Structured data: `/python/html6/product/500/500000/786000/part_--RXEF2501---LittelfuseInc--432d817fb2.json`  
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MCP server: https://www.dataalchemy.com/mcp