Allicdata Part #: | RUEF185SHF-ND |
Manufacturer Part#: |
RUEF185S |
Price: | $ 0.32 |
Product Category: | Circuit Protection |
Manufacturer: | Littelfuse Inc. |
Short Description: | PTC RESET FUSE 30V 1.85A RADIAL |
More Detail: | Polymeric PTC Resettable Fuse 30V 1.85A Ih Through... |
DataSheet: | RUEF185S Datasheet/PDF |
Quantity: | 634 |
Lead Free Status / RoHS Status: | Lead free / RoHS Compliant |
Moisture Sensitivity Level (MSL): | 1 (Unlimited) |
1 +: | $ 0.28350 |
5 +: | $ 0.27468 |
10 +: | $ 0.26586 |
50 +: | $ 0.22378 |
100 +: | $ 0.18572 |
250 +: | $ 0.16884 |
500 +: | $ 0.14351 |
1000 +: | $ 0.12663 |
5000 +: | $ 0.11397 |
Specifications
Series: | PolySwitch®, RUEF |
Packaging: | Bulk |
Lead Free Status / RoHS Status: | -- |
Part Status: | Active |
Moisture Sensitivity Level (MSL): | -- |
Type: | Polymeric |
Voltage - Max: | 30V |
Current - Max: | 100A |
Current - Hold (Ih) (Max): | 1.85A |
Current - Trip (It): | 3.7A |
Time to Trip: | 8.7s |
Resistance - Initial (Ri) (Min): | 30 mOhms |
Resistance - Post Trip (R1) (Max): | 90 mOhms |
Operating Temperature: | -40°C ~ 85°C |
Ratings: | -- |
Mounting Type: | Through Hole |
Package / Case: | Radial, Disc |
Size / Dimension: | 0.402" Dia x 0.118" W (10.20mm x 3.00mm) |
Height - Seated (Max): | 0.618" (15.70mm) |
Thickness (Max): | -- |
Lead Spacing: | 0.199" (5.05mm) |
Approvals: | CQC, CSA, TUV, UL |
Description
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PTC Resettable Fuses: RUEF185S Application Field and Working Principle
Polymeric Positive Temperature Coefficient (PPTC) resettable fuses, also known as polyfuses, are current-sensing components that protect electronic circuits from over-currents and short circuits. The variety of PPTC devices available makes them suitable for different applications like over-current protection for power supplies, battery packs, DC motors, telecommunications and automotive applications. Among these products is the leader of the resistance temperature coefficient (RTC) resettable fuse range, the RUEF185S series. This article will explain the application field and working principle of the RUEF185S.RUEF185S is a resettable fuse with superior resistance temperature coefficient designed for a broad range of applications requiring a reliable over-current protection and high current carrying capacity. This RUEF185S resettable fuse offers a broad range of over-current protection while also satisfying the maximum temperature rise requirements in automotive and telecommunications applications. It has an operating temperature range between -40°C and 125°C and can handle up to 20A with a holding current of 0.2A.The working principle of the RUEF185S is based on the PPTC characteristics of polymeric material, which has a higher resistance temperature coefficient than traditional fuses. When the maximum current or maximum permissible overload reaches a certain level, the PPTC material goes into a high-resistance state and trips the circuit. The PPTC material gradually cools and returns to a low-resistance state, allowing the circuit to reset and turn back on.This resettable fuse can be used for multiple applications including power converters, automobile and telecommunications equipment. In automotive applications, RUEF185S can protect against circuit over-voltage and over-current conditions. The fuses offer short-circuit protection and circuit over-protection. The outstanding dynamic resistance temperature characteristics ensure a safe and reliable operation and provide significantly better current carrying capacity than traditional fuses.This PPTC resettable fuse has a number of benefits. One of the major advantages is its compact size, making it more practical than regular fuses. In addition, the device is self-resetting, meaning no manual reset is required, which could otherwise result in potential risks like electric shock or fire. Lastly, it enables faster circuit recovery than normal fuses, providing more flexibility in design and offering improved system reliability.In conclusion, the RUEF185S resettable fuse is a reliable over-current protection device with a broad range of applications in automotive and telecommunications equipment. Its outstanding dynamic resistance temperature characteristics, small size, and self-resetting capability makes it an ideal choice for a wide range of applications where robust safety and solid reliability are required.The specific data is subject to PDF, and the above content is for reference
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RUEF160-1 | Littelfuse I... | 0.0 $ | 1000 | PTC RESET FUSE 30V 1.6A R... |
RUEF250-1 | Littelfuse I... | 0.0 $ | 1000 | PTC RESET FUSE 30V 2.5A R... |
RUEF900-1 | Littelfuse I... | 0.0 $ | 1000 | PTC RESET FUSE 30V 9A RAD... |
RUEF300-1 | Littelfuse I... | 0.0 $ | 1000 | PTC RESET FUSE 30V 3A RAD... |
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RUEF500K-2 | Littelfuse I... | 0.22 $ | 1000 | PTC RESET FUSE 30V 5A RAD... |
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RUEF800K-2 | Littelfuse I... | 0.28 $ | 1000 | PTC RESET FUSE 30V 8A RAD... |
RUEF900-2 | Littelfuse I... | 0.32 $ | 1000 | PTC RESET FUSE 30V 9A RAD... |
RUEF185S | Littelfuse I... | 0.32 $ | 634 | PTC RESET FUSE 30V 1.85A ... |
RUEF250S | Littelfuse I... | 0.32 $ | 930 | PTC RESET FUSE 30V 2.5A R... |
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RUEF135S | Littelfuse I... | 0.29 $ | 995 | PTC RESET FUSE 30V 1.35A ... |
RUEF110S | Littelfuse I... | 0.29 $ | 500 | PTC RESET FUSE 30V 1.1A R... |
RUEF090-AP | Littelfuse I... | 0.13 $ | 1000 | PTC RESET FUSE 30V 900MA ... |
RUEF185-AP | Littelfuse I... | 0.14 $ | 1000 | PTC RESET FUSE 30V 1.85A ... |
RUEF400K-AP | Littelfuse I... | 0.2 $ | 1000 | PTC RESET FUSE 30V 4A RAD... |
RUEF400K-2 | Littelfuse I... | 0.19 $ | 1000 | PTC RESET FUSE 30V 4A RAD... |
RUEF500K | Littelfuse I... | 0.5 $ | 566 | PTC RESET FUSE 30V 5A RAD... |
RUEF500K-AP | Littelfuse I... | 0.23 $ | 1000 | PTC RESET FUSE 30V 5A RAD... |
RUEF600-1 | Littelfuse I... | 0.57 $ | 708 | PTC RESET FUSE 30V 6A RAD... |
RUEF700K | Littelfuse I... | 0.57 $ | 250 | PTC RESET FUSE 30V 7A RAD... |
RUEF600K-AP | Littelfuse I... | 0.26 $ | 1000 | PTC RESET FUSE 30V 6A RAD... |
RUEF600-AP | Littelfuse I... | 0.26 $ | 1000 | PTC RESET FUSE 30V 6A RAD... |
RUEF600K-2 | Littelfuse I... | 0.26 $ | 1000 | PTC RESET FUSE 30V 6A RAD... |
RUEF600-2 | Littelfuse I... | 0.26 $ | 1000 | PTC RESET FUSE 30V 6A RAD... |
RUEF500-2 | Littelfuse I... | -- | 1000 | PTC RESET FUSE 30V 5A RAD... |
RUEF600K | Littelfuse I... | 0.55 $ | 100 | PTC RESET FUSE 30V 6A RAD... |
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RUEF300U-2 | Littelfuse I... | 0.15 $ | 1000 | PTC RESET FUSE 30V 3A RAD... |
RUEF160S | Littelfuse I... | 0.15 $ | 1000 | PTC RESET FUSE 30V 1.6A R... |
RUEF700K-2 | Littelfuse I... | 0.27 $ | 1000 | PTC RESET FUSE 30V 7A RAD... |
RUEF900K-0.144 | Littelfuse I... | 0.29 $ | 1000 | PTC RESET FUSE 30V 9A RAD... |
RUEF900K-2 | Littelfuse I... | 0.32 $ | 1000 | PTC RESET FUSE 30V 9A RAD... |
RUEF800K | Littelfuse I... | -- | 1000 | PTC RESET FUSE 30V 8A RAD... |
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