LR4-550F is out of stock and can be placed on backorder.
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LR4-550F | |
|---|---|
DigiKey Part Number | LR4-550F-ND |
Manufacturer | |
Manufacturer Product Number | LR4-550F |
Description | PTC RESET FUSE 20V 5.5A STRAP |
Manufacturer Standard Lead Time | 15 Weeks |
Customer Reference | |
Detailed Description | Polymeric PTC Resettable Fuse 20V 5.5 A Ih User Defined Strap |
Datasheet | Datasheet |
Product Attributes
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Category | Time to Trip 5 s |
Manufacturer Littelfuse Inc. | Resistance - Initial (Ri) (Min) 9 mOhms |
Series | Resistance - Post Trip (R1) (Max) 22 mOhms |
Packaging Bag | Operating Temperature -40°C ~ 85°C |
Part Status Active | Mounting Type User Defined |
Type Polymeric | Package / Case Strap |
Voltage - Max 20V | Size / Dimension 1.417" L x 0.283" W (36.00mm x 7.20mm) |
Current - Hold (Ih) (Max) 5.5 A | Thickness (Max) 0.039" (1.00mm) |
Current - Trip (It) 10.5 A | Approval Agency CSA, TUV, UL |
Current - Max 100 A |
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Substitutes (4)
| Part Number | Manufacturer | Quantity Available | DigiKey Part Number | Unit Price | Substitute Type |
|---|---|---|---|---|---|
| MF-LR550 | Bourns Inc. | 0 | MF-LR550-ND | $1.05000 | Direct |
| MF-LR730/20-0 | Bourns Inc. | 0 | 118-MF-LR730/20-0-ND | $1.81000 | Similar |
| MF-LR900/20-0 | Bourns Inc. | 0 | MF-LR900/20-0-ND | $2.15000 | Similar |
| 0ZSC0550FF1E | Bel Fuse Inc. | 0 | 5923-0ZSC0550FF1E-ND | $0.79000 | Similar |
In-Stock: 0
1,000 estimated in stock on 09-Mar-2027
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Quantity
All prices are in USD
Bag
| Quantity | Unit Price | Ext Price |
|---|---|---|
| 1 | $1.21000 | $1.21 |
| 5 | $1.00200 | $5.01 |
| 10 | $0.92400 | $9.24 |
| 50 | $0.76700 | $38.35 |
| 100 | $0.70760 | $70.76 |
| 250 | $0.63596 | $158.99 |
| 500 | $0.58642 | $293.21 |
| 1,000 | $0.54052 | $540.52 |
| 5,000 | $0.47750 | $2,387.50 |
Tariff Status: Tariff may apply if shipping to the United States. Estimated tariff costs will be calculated and displayed in the shopping cart to help you assess potential expenses.

