Part Details for RF2638-000 by Littelfuse Inc
Results Overview of RF2638-000 by Littelfuse Inc
- Distributor Offerings: (3 listings)
- Number of FFF Equivalents: (5 replacements)
- CAD Models: (Request Part)
- Number of Functional Equivalents: (10 options)
- Part Data Attributes: (Available)
- Reference Designs: (Not Available)
Tip: Data for a part may vary between manufacturers. You can filter for manufacturers on the top of the page next to the part image and part number.
RF2638-000 Information
RF2638-000 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 RF2638-000
| Part # | Distributor | Description | Stock | Price | Buy | |
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DISTI #
576-RF2638-000
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Mouser Electronics | Resettable Fuses - PPTC 72V .9A-HD 40A MAX RoHS: Compliant | 0 |
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$0.2400 / $0.2520 | Order Now |
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DISTI #
RXEF090-2
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TTI | Resettable Fuses - PPTC Radial Lead .9A 72V 40A Imax RoHS: Compliant pbFree: Pb-Free Min Qty: 3000 Package Multiple: 3000 Container: Reel | Americas - 0 |
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$0.2790 / $0.2960 | Buy Now |
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DISTI #
000000000007267015
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Sager | Resettable Fuses - PPTC 72V .9A-HD 40A MAX Min Qty: 3000 | 0 |
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$0.2575 / $0.2700 | Buy Now |
Part Details for RF2638-000
RF2638-000 CAD Models
RF2638-000 Part Data Attributes
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RF2638-000
Littelfuse Inc
Buy Now
Datasheet
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Compare Parts:
RF2638-000
Littelfuse Inc
PTC Resettable Fuse, 0.47ohm, Through Hole Mount, RADIAL LEADED, ROHS COMPLIANT
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| Pbfree Code | Yes | |
| Rohs Code | Yes | |
| Part Life Cycle Code | Active | |
| Ihs Manufacturer | LITTELFUSE INC | |
| Package Description | RADIAL LEADED, ROHS COMPLIANT | |
| Reach Compliance Code | compliant | |
| Additional Feature | RESISTANCE RANGE(MIN-MAX): 0.2-0.31 | |
| Mounting Feature | THROUGH HOLE MOUNT | |
| Number of Terminals | 2 | |
| Operating Temperature-Max | 85 °C | |
| Operating Temperature-Min | -40 °C | |
| Package Shape | DISK PACKAGE | |
| Packing Method | TR, 15 INCH | |
| Rated Power Dissipation (P) | 0.99 W | |
| Resistance | 0.47 Ω | |
| Resistor Type | PTC RESETTABLE FUSE | |
| Surface Mount | NO | |
| Terminal Placement | RADIAL | |
| Terminal Shape | WIRE | |
| Thermistor Application | TEMPERATURE SENSING |
Alternate Parts for RF2638-000
This table gives cross-reference parts and alternative options found for RF2638-000. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of RF2638-000, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.
| Part Number | Manufacturer | Composite Price | Description | Compare |
|---|---|---|---|---|
| RXE090B | TE Connectivity | Check for Price | RESISTOR, TEMPERATURE DEPENDENT, PTC, THROUGH HOLE MOUNT, RADIAL LEADED | RF2638-000 vs RXE090B |
| RXEF090-2 | Littelfuse Inc | $0.3365 | PTC Resettable Fuse, Through Hole Mount, RADIAL LEADED | RF2638-000 vs RXEF090-2 |
| RXEF090-2 | TE Connectivity | $0.3519 | PTC Resettable Fuse, 0.47ohm, Through Hole Mount, RADIAL LEADED, ROHS COMPLIANT | RF2638-000 vs RXEF090-2 |
| RXE090S-1 | TE Connectivity | Check for Price | RESISTOR, TEMPERATURE DEPENDENT, PTC RESETTABLE FUSE, THROUGH HOLE MOUNT, RADIAL LEADED | RF2638-000 vs RXE090S-1 |
| RXEF090-AP | Littelfuse Inc | Check for Price | PTC Resettable Fuse, Through Hole Mount, RADIAL LEADED | RF2638-000 vs RXEF090-AP |
RF2638-000 Frequently Asked Questions (FAQ)
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Littelfuse provides a recommended PCB layout and land pattern in their application notes and design guides. It's essential to follow these guidelines to ensure optimal performance, minimize parasitic inductance, and reduce electromagnetic interference (EMI).
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To select the correct fuse, consider factors such as the maximum current, voltage, and power rating of your circuit. You should also consider the fuse's interrupting rating, melting I²t, and cold resistance. Littelfuse provides a fuse selection guide and online tools to help with this process.
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The lead time and availability of the RF2638-000 can vary depending on the region, distributor, and quantity. It's best to check with authorized distributors or Littelfuse's website for the most up-to-date information on lead times and availability.
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Yes, it's essential to follow proper safety precautions when handling and installing the RF2638-000, such as wearing protective gear, avoiding over-tightening, and ensuring the fuse is properly seated in its holder. Refer to Littelfuse's safety guidelines and industry standards for more information.
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The RF2638-000 has a maximum operating temperature of 125°C. While it can be used in high-temperature applications, it's crucial to consider the fuse's derating curves and ensure it's properly cooled to prevent premature aging or failure.