RUEF700K Allicdata Electronics

RUEF700K Circuit Protection

Allicdata Part #:

RUEF700KHF-ND

Manufacturer Part#:

RUEF700K

Price: $ 0.57
Product Category:

Circuit Protection

Manufacturer: Littelfuse Inc.
Short Description: PTC RESET FUSE 30V 7A RADIAL
More Detail: Polymeric PTC Resettable Fuse 30V 7A Ih Through Ho...
DataSheet: RUEF700K datasheetRUEF700K Datasheet/PDF
Quantity: 250
Lead Free Status / RoHS Status: Lead free / RoHS Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)
1 +: $ 0.51660
5 +: $ 0.49770
10 +: $ 0.46620
50 +: $ 0.38556
100 +: $ 0.32130
250 +: $ 0.31326
500 +: $ 0.26508
1000 +: $ 0.23294
5000 +: $ 0.20885
Stock 250Can Ship Immediately
$ 0.57
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): 7A
Current - Trip (It): 14A
Time to Trip: 17.5s
Resistance - Initial (Ri) (Min): 5 mOhms
Resistance - Post Trip (R1) (Max): 30 mOhms
Operating Temperature: -40°C ~ 85°C
Ratings: --
Mounting Type: Through Hole
Package / Case: Radial, Disc
Size / Dimension: 0.752" L x 0.118" W (19.10mm x 3.00mm)
Height - Seated (Max): 1.091" (27.70mm)
Thickness (Max): --
Lead Spacing: 0.400" (10.15mm)
Approvals: CQC, CSA, TUV, UL
Description

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PTC Resettable Fuses covers a wide range of applications, mainly used to protect electronic components, systems or products against damage due to overheating or overcurrent. RUEF700K is a new resettable fuse in PTC Resettable Fuses launched by Taiwanese manufacturers, Rohm Technologies.RUEF700K is a small, lightweight, low-resistance, fast-acting protection device designed for a variety of portable electronic systems. The product package is made of highly insulating materials, providing strong anti-interference performance and reliable protection for a variety of high frequency circuits. It is an ideal protection product for digital media players, portable speakers, electronic toys, video cameras, medical equipment, and notebook computers etc.RUEF700K consists of a metal-oxide resistor, a ceramic substrate and a plastic housing. The ceramic substrate has a positive temperature coefficient of resistance, and the resistance of the polymeric PTC increases exponentially with increasing temperature. The metal-oxide resistor mainly provides inrush current to the PTC, which can quickly warm up the internal temperatureof the PTC. The plastic housing protects the components inside the fuse, and the separate cavity between the metal-oxide resistor and the PTC provides the necessary insulation and heat dissipation to keep the system at an optimum temperature.The working principle of RUEF700K is simple and reliable. When the circuit current increases to a certain value, the ceramic substrate generates heat due to the Joule heating effect, which increases the resistance of the PTC. This increases the resistance of the product, so that the resistance value is equal to the threshold value of the over-current protection level, and the current is interrupted to play the role of overload protection. Once the overload is eliminated, the PTC can recover to its original low-resistance state, restoring the original circuit performance.The typical characteristics of RUEF700K feature fast response times, low temperature rise characteristics, and low leakage. Most importantly, it can eliminate current through the use of self-heating, which can provide reliable and efficient protection for systems or components. Moreover, RUEF700K features an excellent resettable capability and can reset multiple times without damage.Compared with traditional power resistors, RUEF700K is more reliable, with a voltage rating from 70V to 600V, a temperature rating of -40°C to +85°C and a current limit range from 0.1A to 10A, which covers a wide range of applications. In addition, the small size of RUEF700K makes it suitable for modern miniaturized products, and provides a variety of wiring options.In short, RUEF700K is a small and lightweight protection device designed for a variety of portable electronic systems. It is characterized by fast response time, low temperature rise, low leakage and high reliability, and can reset multiple times without damage. With a wide range of application fields and working principles, RUEF700K provides a reliable and efficient protection for systems or components.

The specific data is subject to PDF, and the above content is for reference

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