# RXEF185K-AP Littelfuse Inc. | Circuit Protection | DigiKey

**Manufacturer:** Littelfuse Inc  
**Brand:** Littelfuse Inc.  
**MPN:** `RXEF185K-AP`

## Specifications

| Attribute | Value |
| --- | --- |
| Brand name | Littelfuse Inc. |
| Manufacturer name | Littelfuse Inc. |
| Manufacturer | Littelfuse Inc. |
| DimensionUnit | inch |
| Extra Product Name | RXEF185K-AP Littelfuse Inc. \| Circuit Protection \| DigiKey |
| atoms | 1 |
| extraShipping | 0 |
| height | 0.906 |
| height_Attrib | Height - Seated (Max) |
| moq | 1 |
| MPN | RXEF185K-AP |
| multiple | 1 |
| qtyInStock | 218 |
| SKU | 5015973 |
| snippet | Polymeric PTC Resettable Fuse 72V 1.85 A Ih Through Hole Radial, Disc |
| tierMinQty1 | 1 |
| tierMinQty10 | 3,000 |
| tierMinQty2 | 5 |
| tierMinQty3 | 10 |
| tierMinQty4 | 50 |
| tierMinQty5 | 100 |
| tierMinQty6 | 250 |
| tierMinQty7 | 500 |
| tierMinQty9 | 2,000 |
| tierPrice1 | 0.759 |
| tierPrice10 | 0.26997 |
| tierPrice2 | 0.7336999999999999 |
| tierPrice3 | 0.7106999999999999 |
| tierPrice4 | 0.5984599999999999 |
| tierPrice5 | 0.49679999999999996 |
| tierPrice6 | 0.45158199999999993 |
| tierPrice7 | 0.383847 |
| tierPrice9 | 0.27488 |
| 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) | 1.85 A |
| Current - Trip (It) | 3.7 A |
| Time to Trip | 12.6 s |
| Resistance - Initial (Ri) (Min) | 80 mOhms |
| Resistance - Post Trip (R1) (Max) | 190 mOhms |
| Operating Temperature | -40?C ~ 85?C |
| Ratings | - |
| Mounting Type | Through Hole |
| Package / Case | Radial, Disc |
| Size / Dimension | 0.660" Dia x 0.118" T (16.76mm x 3.00mm) |
| Height - Seated (Max) | 0.906" (23.00mm) |
| 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 | 5015973 | 0.759 | 1 | 218 | 1 |
| Newark | 45P8135 | 0.372 | 1 | None | 5000 |
| Digi-Key | 5268556 | 0.7475 | 1 | 325 | 500 |
| Digi-Key | 6588997 | 0.7475 | 1 | 325 | 500 |

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Structured data: `/python/html6/product/500/146000000/146452500/part_--RXEF185KAP---LittelfuseInc--d54a93ad1d.json`  
Search API: https://www.dataalchemy.com/api/  
MCP server: https://www.dataalchemy.com/mcp