Why do pulse withstanding resistors handle high surges?
Pulse withstanding chip resistors are designed to maximize the usable width of the resistive element. This design greatly reduces or completely eliminates the hot spot on the resistor where current crowding occurs. That is the principle weak point and main limiting factor in the pulse handling for chip resistors. High Surge Handling Capability
How many watts can a pulse resistor handle?
In addition, 0805 size pulse resistors can now handle more than 100 watts for the same duration (single pulse). Standard thick-film chip resistors will have a laser trim across the width of the part, which can narrow the effective width of the resistive element by as much as 40%.
What happens when there is a high power surge?
A high power surge can happen when electricity is interrupted then immediately re-established. This occurrence forces too much current through the electrical system. Power surges have the ability to knock out your delicate electronics, cause fires, and wreak havoc up and down the circuitry of your home or business.
Can a short circuit cause a power surge?
Tripped circuit breakers and short circuits can also create spikes in current. This kind of internal surge is powerful enough to cause damage. If you suspect your home has bad wiring, contact your utility company immediately. External power surges are usually greater than the internal variety.
Which is the best resistor for high currents?
Corrib® Fixed and Adjustable Vitreous Enamel Power Corrib® resistors are ideal for applications involving high currents at very low resistance values—as low as 0.1Ω for the 300 Watt unit.… Read More
Do you need an adjustable power resistor for ohmite?
Due to multiple mounting options and constructions, Ohmite is confident customers will find the proper High Power resistor required to fit their needs. Adjustable Power Resistors are constructed that its resistance can be readily changed.
Which is an example of an adjustable power resistor?
Adjustable Power Resistors are constructed that its resistance can be readily changed. High Current Round Edgewound These high current round edgewound resistors handle a variety of applications including dynamic braking, load banks, motor starting, and plugging. They are available…