How do I choose a fusible resistor?
How do I choose a fusible resistor?
The correct selection of the rated voltage of the fuse: should be equal to or greater than the circuit voltage. For example, a 250V fuse can be used for a 125V circuit. For low voltage electronic applications, an AC-rated fuse can be used in a DC circuit.
What is the use of fusible resistor?
A resistor designed to protect a circuit against overload; its resistance limits current flow and thereby protects against surges when power is first applied to a circuit; its fuse characteristic opens the circuit when current drain exceeds design limits.
What are the values of resistors?
Resistor Markings
| Value | 1st Band | Multiplier x |
|---|---|---|
| 180 ohms | Brown | Brown |
| 3,900 ohms | Orange | Red |
| 47,000 ohms (47k) | Yellow | Orange |
| 1,000,000 ohms (1M) | Brown | Green |
Does fuse wire have high resistance?
A fuse contains a strip of metal or a metal wire having a small cross section area. It was discussed that fuse is used for protection of a circuit from overcurrent. Hence, fuse wire is a wire of high resistance and low melting point.
How much resistance does a fuse have?
A good fuse has a very low resistance. A burnt-out fuse presents an open circuit, so your multimeter reads infinite or very high resistance. Very near 0 ohms.
What are fixed resistors?
The resistors that have a defined value of the resistance are called fixed resistors. The resistance of fixed resistors is not adjustable. The resistance of these resistors does not change with voltage or temperature.
What is standard resistor value?
Preferred Values or E-series The series looks as follows: 1– 1.2 – 1.5 – 1.8 – 2.2 – 2.7 – 3.3 – 3.9 – 4.7 – 5.6 – 6.8 – 8.2 – 10 etc. All of these values can be powers of ten (1.2 – 12 – 120, etc.). While the E12 series is the most common, other series are also available.
What is token general purpose resistors?
Token General Purpose Resistors make using fixed linear technologies include fusible, anti-surge power, wirewound, metal film, metal oxide, carbon film, non-inductive wirewound, cement type, and thick film type. Token also extends a complete line for both military and commercial applications.
What is fusible resistor?
As Circuit Breaker, Fusible Resistor features best of both electronic worlds. Designers of small power supplies and battery chargers for consumer products can benefit from a fusible resistor with superior lightning strike and pulse abilities in a cost effective package.
What is token wirewound power resistors?
Token Wirewound Power Resistors for electrical industry range from large capacity metal clad, nonflammable fixed wirewound, nonflammable wave shape ribbon, slide type wirewound, box type, wirewound starter, to nonflammable flat wirewound type. Token extends a complete line for both military and commercial applications.
How are thin film resistors made?
(AR), (PR) thin film chip resistors are formed by vacuum depositing a resistive alloy on a usually flat substrate of ceramic. Photo-lithographic or similar techniques are used to define the final geometry and interconnecting traces.