# RXEF300K-2 Littelfuse Inc. | Circuit Protection | DigiKey

**Manufacturer:** Littelfuse Inc  
**Brand:** Littelfuse Inc.  
**MPN:** `RXEF300K-2`

## Specifications

| Attribute | Value |
| --- | --- |
| Brand name | Littelfuse Inc. |
| Manufacturer name | Littelfuse Inc. |
| Manufacturer | Littelfuse Inc. |
| DimensionUnit | inch |
| Extra Product Name | RXEF300K-2 Littelfuse Inc. \| Circuit Protection \| DigiKey |
| atoms | 1 |
| extraShipping | 0 |
| height | 1.154 |
| height_Attrib | Height - Seated (Max) |
| moq | 1,000 |
| MPN | RXEF300K-2 |
| multiple | 1,000 |
| qtyInStock | 0 |
| SKU | 5015976 |
| snippet | Polymeric PTC Resettable Fuse 72V 3 A Ih Through Hole Radial, Disc |
| tierMinQty1 | 1 |
| tierPrice1 | 1.081 |
| Category | Circuit Protection |
| Mfr | Littelfuse Inc. |
| Series | PolySwitch?, RXEF |
| Package | Tape & Reel (TR) |
| Product Status | Active |
| Type | Polymeric |
| Voltage - Max | 72V |
| Current - Max | 40 A |
| Current - Hold (Ih) (Max) | 3 A |
| Current - Trip (It) | 6 A |
| Time to Trip | 19.8 s |
| Resistance - Initial (Ri) (Min) | 40 mOhms |
| Resistance - Post Trip (R1) (Max) | 100 mOhms |
| Operating Temperature | -40?C ~ 85?C |
| Ratings | - |
| Mounting Type | Through Hole |
| Package / Case | Radial, Disc |
| Size / Dimension | 0.910" Dia x 0.118" T (23.11mm x 3.00mm) |
| Height - Seated (Max) | 1.154" (29.30mm) |
| Thickness (Max) | - |
| Lead Spacing | 0.400" (10.15mm) |
| Approval Agency | CQC, CSA, TUV, UL |

## Distributor availability

| Distributor | SKU | Price (USD) | Qty | Stock | MOQ |
| --- | --- | --- | --- | --- | --- |
| Digi-Key | 5015976 | 1.081 | 1 | None | 1000 |
| Future Electronics | C010663487 | 0.47 | 1 | None | 1000 |
| iodParts | RXEF300K-2 | 0.371 | 1 | 4000 | 1000 |
| Digi-Key | 5268636 | 1.081 | 1 | None | 10000 |
| Digi-Key | 1773993 | 1.081 | 1 | 510 | 5000 |

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Structured data: `/python/html6/product/500/18000000/18308500/part_--RXEF300K2---LittelfuseInc--0b4a9f4007.json`  
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