Semiconductors
Passive Components
Sensors
Power
Optoelectronics
For Reference Only
| Part Number | LR4-550F |
| OEMstron Part # | LR4-550F |
| 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 | LR4-550F PCB Footprint and Symbol |
| Warehouses | USA, Europe, China, Hong Kong SAR |
| Estimated Delivery | May 31 - Jun 5 (Choose Expedited Shipping) |
| Warranty | Up to 1 year [Limited-Warranty]* |
| Payment |  |
| Shipping |  |
LR4-550F Specifications
| Part Number | LR4-550F | |
| 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 | 1.417" L x 0.283" W (36.00mm x 7.20mm) | |
| Height - Seated (Max) | - | |
| Thickness (Max) | 0.039" (1.00mm) | |
| Lead Spacing | - |
LR4-550F Documents
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Global Supply Chains - Reliable and Authorized Distributor Resources
| Part Number | Description | Stock |
|
LR4-550F D# V79:2366_17803361 Littelfuse Inc |
PTC Resettable Fuse 5.5A(hold) 10.5A(trip) 20V 100A 2.8W 5s 0.009Ohm SMD Solder Pad 37 X 7.5 X 1mm Bag RoHS: Compliant
|
Americas - 56 |
| Part Number | Description | Stock |
|
RALR-550(CROSS: LR4-550F) OptiFuse |
5000 |
| Part Number | Description | Stock |
|
LR4-550F TE Connectivity |
POLYSWITCH, STRAP, 5.5A |
950 |
| Part Number | Description | Stock |
|
LR4-550F D# LR4-550F-ND Littelfuse Inc |
PTC RESET FUSE 20V 5.5A STRAP |
4367 In Stock |
| Part Number | Description | Stock |
|
LR4-550F D# 1345908RL Littelfuse Inc |
POLYSWITCH, STRAP, 5.5A RoHS: Compliant
Min Qty: 1
Container: Reel
|
0 |
| Part Number | Description | Stock |
|
LR4-550F Littelfuse Inc |
RoHS: Compliant
pbFree: Yes
|
0 Bag |
| Part Number | Description | Stock |
|
LR4-550F D# 650-LR4-550F Littelfuse Inc |
Resettable Fuses - PPTC 5.5A 20V 100A Imax RoHS: Compliant
|
1294 |
| Part Number | Description | Stock |
|
LR4550F TE Connectivity |
OEM/CM ONLY |
5016 |
| Part Number | Description | Stock |
|
RF1545-000 Littelfuse Inc |
Resettable Fuses - PPTC 20V 5.5A-HD 100A MAX pbFree: Pb-Free
|
Americas - 825 |
|
LR4-550F Littelfuse Inc |
Resettable Fuses - PPTC 5.5A 20V 100A Imax pbFree: Pb-Free
|
Americas - 825 |
| Part Number | Description | Stock |
|
LR4-550F D# 26120441 Littelfuse Inc |
PTC Resettable Fuse 5.5A(hold) 10.5A(trip) 20V 100A 2.8W 5s 0.009Ohm SMD Solder Pad 37 X 7.5 X 1mm Bag RoHS: Compliant
|
Americas - 56 |
| Part Number | Description | Stock |
|
LR4-550F D# 1345908 Littelfuse Inc |
POLYSWITCH, STRAP, 5.5A RoHS: Compliant
Min Qty: 5
Container: Cut Tape
|
101 |
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Quick Inquiry
| In Stock | 328 - 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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