Semiconductors
Passive Components
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Optoelectronics
For Reference Only
| Part Number | LR4-550RAF |
| OEMstron Part # | LR4-550RAF |
| Manufacturer | Littelfuse |
| Category | Power › Circuit Protection › PTC Resettable Fuses |
| Description | PTC RESET FUSE 20V 5.5A STRAP |
| Lifecycle | Active |
| RoHS | No RoHS Information |
| EDA/CAD Models | LR4-550RAF PCB Footprint and Symbol |
| Warehouses | USA, Europe, China, Hong Kong SAR |
| Estimated Delivery | May 20 - May 25 (Choose Expedited Shipping) |
| Warranty | Up to 1 year [Limited-Warranty]* |
| Payment |  |
| Shipping |  |
LR4-550RAF Specifications
| Part Number | LR4-550RAF | |
| Brand | Littelfuse | |
| Lifecycle | Active | |
| RoHS | No RoHS Information | |
| Product Line | Power | |
| Category | Circuit Protection | |
| Subcategory | PTC Resettable Fuses | |
| Manufacturer | Littelfuse Inc. | |
| Series | PolySwitch®, LR4 | |
| Type | Polymeric | |
| Voltage - Max | 20V | |
| Current - Max | 100A | |
| Current - Hold (Ih) (Max) | 5.5A | |
| Current - Trip (It) | 10.5A | |
| Time to Trip | 5s | |
| Resistance - Initial (Ri) (Min) | 9 mOhms | |
| Resistance - Post Trip (R1) (Max) | 22 mOhms | |
| Resistance - 25°C (Typ) | - | |
| Operating Temperature | -40°C ~ 85°C | |
| Ratings | - | |
| Mounting Type | User Defined | |
| Package / Case | Strap | |
| Size / Dimension | - | |
| Height - Seated (Max) | - | |
| Thickness (Max) | - | |
| Lead Spacing | - |
LR4-550RAF Documents
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Global Supply Chains - Reliable and Authorized Distributor Resources
| Part Number | Description | Stock |
|
RF1537-000 D# LR4-550RAF TE Connectivity |
POLYSWITCH RESETTABLE DEVICES (Alt: LR4-550RAF) RoHS: Compliant
|
Americas - 1000 |
| Part Number | Description | Stock |
|
LR4-550RAF TE Connectivity |
POLYSWITCH PTC RESET 5.5A STRAP |
1000 |
| Part Number | Description | Stock |
|
LR4-550RAF D# LR4-550RAF-ND Littelfuse Inc |
PTC RESET FUSE 20V 5.5A STRAP |
Temporarily Out of Stock |
| Part Number | Description | Stock |
|
LR4550RAF TE Connectivity |
OEM/CM ONLY |
217 |
| Part Number | Description | Stock |
|
LR4550RAF TE Connectivity |
OEM/CM ONLY |
1016 |
| Part Number | Description | Stock |
|
LR4-550RAF D# 19618593 TE Connectivity |
Resettable Fuses - PPTC 5.5A Strap Polyswitch PTC Reset |
Americas - 400 |
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Quick Inquiry
| In Stock | 368 - More on Order |
|---|---|
| Quote Limit | No Limit |
| Lead-Time | To be Confirmed |
| Minimum | 1 |
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Pricing (USD)
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1 | $ 0.0000 | $ 0.0000 |
| 100 | $ 0.0000 | $ 0.0000 |
| 500 | $ 0.0000 | $ 0.0000 |
| 1000 | $ 0.0000 | $ 0.0000 |
| 2500 | $ 0.0000 | $ 0.0000 |
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