This resistor made by such material that have characteristic of fusing without flames or without excess heat generation when current load jumps suddenly more than required. In this way, a fusible resistor serves dual functions.
When the power rating is exceede it functions as a fuse, burning up, and becoming an open in the circuit to protect components in the circuit from excess current. When you see normally in any circuit. A fuse, in contrast, has a resistance ranging from milliohms to hundreds of milliohms.
Winsonicries are produced with precision technique to get exact fusing time.
Resistors are available at Mouser Electronics. Sometimes also called flameproof resistors. FLUKE 87-IV Really Strange Readings Negative Ohms.
Low resistance parts require higher power to fuse than high resistance parts. It is recommended that values less than 2be evaluated for specific applications. A fusible resistor that serves as the main overcurrent component in a power supply or charger can have a resistance of Ω. Two configurations are offere a two lead device with integrated series fuse and a four lead device with kV isolation between the fuse and the independent resistor.
Designers can combine a fuse with an NTC thermistor to protect against overcurrents and limit inrush current.
Quest Components has several fusible resistor manufacturers to choose from. Same day shipping on all fusible resistors in stock. A wide variety of fusible cement resistor options are available to you, such as other.
You can also choose from other fusible cement resistor, as well as from other fusible cement resistor, and whether fusible cement resistor is other. There are suppliers who sells fusible cement resistor on Alibaba. Bourns wirewound resistors are designed to fuse under abnormal conditions such as sudden surges in voltage or circuit malfunctions. Using one component versus two saves costs and PCB space.
Since two functions performed by one resistor, the cost therefore saved. This axial leaded series is an integrated solution as it provides both inrush current protection and fusible overcurrent protection.
Fuse resistors are electronic components which, in addition to their typical role, have an important protective function. If the power dissipated on the resistor does not exceed its characteristic limit value, this component behaves like a normal resistor. Current fuse or fusible resistor is the simplest electrical circuit safety device, a one-off element connected in the circuit to provide overcurrent protection.
Current fuses and fusible resistors that Southern Group have produced are shown below. Terminal strength No evidence of mechanical damage. R to 15K Tolerance: 1%, 2%, 5%.
They can be difficult if not impossible to tell apart visually. Most resistors of this type you are likely to encounter are simply flameproof resistors, not the fusible type.
Fusible and flameproof resistors look alike.
The flameproof characteristic means when overloaded the resistor will not emit flame. It can still get very very hot. Pictures shown is for illustration purpose only. Thakor Industries Company.
Dimensions are in millimetres unless otherwise specified. Specifications subject to change. The generator voltage will be higher due to the generator’s internal impedance.
The band color codes are: Green, Blue, Brown, Red and White (pictured). It is located in a negative supply line to pins on a STK Integrated Circuit (Stereo Amplifier).
The service manual lists it as: R FUSE ERD2FC S10.
Inga kommentarer:
Skicka en kommentar
Obs! Endast bloggmedlemmar kan kommentera.