Allicdata Part #: | 250R120-R1U-ND |
Manufacturer Part#: |
250R120-R1U |
Price: | $ 0.57 |
Product Category: | Circuit Protection |
Manufacturer: | Littelfuse Inc. |
Short Description: | PTC RESET FUSE 60V 120MA RADIAL |
More Detail: | Polymeric PTC Resettable Fuse 60V (250V Int) 120mA... |
DataSheet: | 250R120-R1U Datasheet/PDF |
Quantity: | 4865 |
Moisture Sensitivity Level (MSL): | 1 (Unlimited) |
Lead Free Status / RoHS Status: | Lead free / RoHS Compliant |
1 +: | $ 0.52290 |
5 +: | $ 0.50778 |
10 +: | $ 0.49203 |
50 +: | $ 0.41404 |
100 +: | $ 0.34373 |
250 +: | $ 0.31248 |
500 +: | $ 0.26561 |
1000 +: | $ 0.23436 |
5000 +: | $ 0.21092 |
Resistance - Initial (Ri) (Min): | 6 Ohms |
Approvals: | cURus, TUV |
Lead Spacing: | 0.201" (5.10mm) |
Thickness (Max): | -- |
Height - Seated (Max): | 0.433" (11.00mm) |
Size / Dimension: | 0.256" L x 0.181" W (6.50mm x 4.60mm) |
Package / Case: | Radial, Disc |
Mounting Type: | Through Hole |
Ratings: | -- |
Operating Temperature: | -40°C ~ 85°C |
Resistance - Post Trip (R1) (Max): | 16 Ohms |
Series: | POLY-FUSE®, 250R |
Time to Trip: | 2.5s |
Current - Trip (It): | 240mA |
Current - Hold (Ih) (Max): | 120mA |
Current - Max: | 3A |
Voltage - Max: | 60V (250V Int) |
Type: | Polymeric |
Moisture Sensitivity Level (MSL): | -- |
Part Status: | Active |
Lead Free Status / RoHS Status: | -- |
Packaging: | Bulk |
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PTC resettable fuses, which are also known as polymeric positive temperature coefficient (PPTC) devices, are a type of overcurrent protection. It consists of a positive temperature coefficient element placed in series in an electrical circuit. When the current flowing in the protected circuit exceeds a specified limit, the current passing through the element increases consequent to its self-heating. As the temperature rises, the resistance of the element quickly increases, causing the current to drop. When the current becomes low enough, the temperature of the device falls, and the element\'s resistance lowers until the normal current is detected.
250R120-R1U is a PPTC resettable fuse designed to provide reliable overcurrent protection in a variety of applications. It offers a variety of features including a compact size, high current rating, excellent cyclic performance, and stable reset threshold. It is ideal for applications such as motor controllers, load switches, and protection in DC-DC converters, DC motors, power tools, lighting, etc. The device is UL recognized and has an operating temperature range of -40°C to +85°C.
The 250R120-R1U offers a maximum current rating of 120A and a maximum voltage of 250V. Its UL temperature derating curve allows for operation at temperatures up to 85°C with a maximum current rating of 100A. The device is constructed with an enhanced-sensitivity element which allows for reliable and consistent reset thresholds. Furthermore, the device features protection against short-circuits and can be used in series to offer protection for multiple device channels.
When the 250R120-R1U senses an overcurrent, the device will reach its reset threshold due to the increase in current and temperature. At this point, the device will become an open circuit, interrupting the current flow and effectively protecting the circuit. After the overcurrent condition has been removed, the device will self-reset, restoring the circuit to its normal operating state.
The 250R120-R1U is available in surface-mount and through-hole packages with a variety of pin configurations. This allows for easy implementation in a variety of applications. Additionally, the device features a thermoplastic housing which provides a mechanical barrier to dust, water, and other contaminants.
In conclusion, the 250R120-R1U is an excellent choice for the reliable protection of AC and DC circuits in a variety of applications. It offers excellent features such as a high current rating, low temperature derating, and a stable reset threshold. Additionally, the device is UL recognized and it\'s available in a variety of packages with a variety of pin configurations, allowing for easy implementation.
The specific data is subject to PDF, and the above content is for reference
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