You may already know that it can be advantageous to have an ESR capacitor tester on hand when you are dealing with electronic components that have fizzled out and you are trying to repair an expensive piece of equipment, . ESR stands for equivalent series resistance. These ESR capacitors mainly used in electronics to complete electrical circuits between components. If you use the capacitors alone, they may only provide capacitance, with a limited degree of resistance, which may not provide enough conduction to complete an electrical circuit. Only when you use a series of capacitors, they become the ideal capacitors. They can provide appropriate levels of capacitance and resistance to create the right amount of conduction in an electrical circuit. ESR capacitors are used in many different types of electrical circuits. A few things that may use ESR capacitorsTV's, printers, computers, air conditioning, medical equipment, and electric motors. Computer motherboards usually have ESR capacitors also. If you are trying to determine which component, or components, have gone bad on a motherboard or other electronic equipment, testing the capacitors for ESR measurements may be able to tell you which components have gone bad and need to be replaced.

Capacitors to will degrade over time, losing resistance ability. It may be that its ability for capacitance is still viable, but if the resistance ability has degraded, the capacitor won't be able to do its job in maintaining proper conduction of the circuit. You may not notice any signs of any physical signs that will tell you that your capacitor is degraded already. An ESR capacitor tester can measure ESR on capacitors. Once you have an ESR measurement, it can help you determine if that particular capacitor is functioning appropriately. Capacitors that have failed typically have very high ESR measurements. Capacitors with lower values of ESR, it may help you determine if it is operating at maximum efficiency, or if it is indeed the problem and needs to be replaced.

Electronic circuits are often enclosed in small spaces that are hard to get to. In addition, capacitors are often soldered to a motherboard or other stabilizing device and may be connected to other components in the circuit. It may be difficult to pull out a capacitor to test it with a structure such as this one. You may want to avoid disordering capacitors and removing them from the circuit just to take them out and test them. For this kind of situation, an ESR capacitor tester may be a more convenient choice. This type of tester may be able to reach into tight spots and handle small components to test a capacitor for ESR readings while it is still attached to a motherboard or other device. With the use of this tester, you save more time and you will be able to maintain the integrity of the equipment. An ESR tester can be a convenient tool when you are working to repair electronic circuits.