Part Details for LR4-550F by Littelfuse Inc
Results Overview of LR4-550F by Littelfuse Inc
- Distributor Offerings: (7 listings)
- Number of FFF Equivalents: (0 replacements)
- CAD Models: (Request Part)
- Number of Functional Equivalents: (0 options)
- Part Data Attributes: (Available)
- Reference Designs: (Not Available)
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Applications
Industrial Automation
Computing and Data Storage
LR4-550F Information
LR4-550F by Littelfuse Inc is a Non-linear Resistor.
Non-linear Resistors are under the broader part category of Resistors.
Resistors are passive components that work by limiting electron flow in a circuit. They are available as fixed or as variable (potentionmeters). Read more about Resistors on our Resistors part category page.
Price & Stock for LR4-550F
| Part # | Distributor | Description | Stock | Price | Buy | |
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DISTI #
40K7223
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Newark | Fuse, Ptc Reset, 20V, 5.5A, Strap, Product Range:Polyswitch Lr4 Series, Voltage Rating:20Vdc, Holding Current:5.5A, Trip Current:10.5A, Time To Trip:5S, Current Rating Max:100A, Operating Temperature Min:-, External Depth:1Mm Rohs Compliant: Yes |Littelfuse LR4-550F RoHS: Compliant Min Qty: 10000 Package Multiple: 1 Date Code: 0 Container: Bulk | 0 |
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Buy Now | |
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DISTI #
LR4-550F-ND
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DigiKey | PTC RESET FUSE 20V 5.5A STRAP Min Qty: 1 Lead time: 15 Weeks Container: Bag |
154 In Stock |
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$0.4775 / $1.2100 | Buy Now |
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DISTI #
650-LR4-550F
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Mouser Electronics | Resettable Fuses - PPTC 5.5A 20V 100A Imax RoHS: Compliant | 3690 |
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$0.5080 / $1.2100 | Buy Now |
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DISTI #
V99:2348_16264175
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Arrow Electronics | 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 Min Qty: 1 Package Multiple: 1 Lead time: 15 Weeks Date Code: 2115 | Americas - 2 |
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$0.3195 / $0.3986 | Buy Now |
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DISTI #
LR4-550F
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TTI | Resettable Fuses - PPTC 5.5A 20V 100A Imax RoHS: Compliant pbFree: Pb-Free Min Qty: 25 Package Multiple: 25 Container: Bulk |
Americas - 2800 In Stock |
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$0.6400 / $0.9200 | Buy Now |
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DISTI #
RF1545-000
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TME | Fuse: PTC polymer, 5.5A Min Qty: 1000 | 0 |
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$0.9200 | RFQ |
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DISTI #
LR4-550F
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IBS Electronics | PTC RESETTABLE FUSE 5.5A(HOLD) 10.5A(TRIP) 20V 100A 2.8W 0.009OHM SMD SOLDER PAD BAG Min Qty: 10000 Package Multiple: 1 | 0 |
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$0.6305 / $0.6630 | Buy Now |
Part Details for LR4-550F
LR4-550F CAD Models
LR4-550F Part Data Attributes
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LR4-550F
Littelfuse Inc
Buy Now
Datasheet
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Compare Parts:
LR4-550F
Littelfuse Inc
PTC Thermistor, 0.009ohm, Surface Mount, AXIAL LEADED, ROHS COMPLIANT
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| Pbfree Code | Yes | |
| Rohs Code | Yes | |
| Part Life Cycle Code | Active | |
| Ihs Manufacturer | LITTELFUSE INC | |
| Reach Compliance Code | unknown | |
| ECCN Code | EAR99 | |
| HTS Code | 8533.40.80.70 | |
| Samacsys Manufacturer | LITTELFUSE | |
| Additional Feature | Rmin@25 Deg Cel | |
| Mounting Feature | SURFACE MOUNT | |
| Number of Terminals | 2 | |
| Operating Temperature-Max | 85 °C | |
| Operating Temperature-Min | -40 °C | |
| Package Height | 1 mm | |
| Package Length | 37 mm | |
| Package Shape | RECTANGULAR PACKAGE | |
| Package Style | SMT | |
| Package Width | 7.5 mm | |
| Packing Method | BULK | |
| Reference Standard | AEC-Q200; CSA; TUV; UL | |
| Resistance | 0.009 Ω | |
| Resistor Type | PTC RESETTABLE FUSE | |
| Surface Mount | YES | |
| Terminal Placement | AXIAL | |
| Terminal Shape | FLAT | |
| Working Voltage | 20 V |
LR4-550F Frequently Asked Questions (FAQ)
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The recommended mounting torque for the LR4-550F is 10-12 in-lbs (1.1-1.4 Nm).
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Yes, the LR4-550F is designed to operate in high-temperature applications up to 150°C (302°F). However, the fuse's current rating may be derated at higher temperatures.
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Yes, the LR4-550F is compatible with lead-free soldering processes and meets the requirements of the RoHS directive.
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The minimum order quantity for the LR4-550F varies depending on the packaging option and the distributor. Typically, it ranges from 100 to 1000 pieces.
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Yes, the LR4-550F is designed to operate in harsh environments and can withstand exposure to moisture, dust, and vibration. However, it's recommended to use a conformal coating or potting compound to ensure reliability in extreme environments.