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PTC Resettable Fuses

Introduction of 0805L020YR

0805L020YR is an innovative product developed by electronic component suppliers. It is one of the components of PTC Resettable Fuses, and it is used to prevent the damage caused by overcurrent and overvoltage. In the fields of smartphone chargers, telecom packages, peripheral products, and other peripheral products in the process of electricity transport, the 0805L020YR are used more and more widely, and its utility has improved the safety performance of electronic products under the support of technological progress.

Application Field

PTC Resettable Fuses is a self-healing protection element with automatic reset function. It is widely used in product applications such as telecommunications, computer peripherals, notebook power systems, consumer electronics, power adapters and other electronic products, as well as electronic-controlled machines, electronic circuits (energy saving lamps, LED lights, charging piles, etc.), electrical equipment (charging guns, car chargers, inverters, etc.), precision instruments, office equipment, communication systems, medical instruments, solar energy system, transportation, train, power industry, etc.

Working Principle

0805L020YR is a PTC resettable fuse with a self-healing function, which combines the function of a thermal fuse and a circuit breaker. It includes two components: a resistive element and a trigger element (bimetal), which can realize overheating protection.When there is no overcurrent protection, the resistive element is not working. When the overcurrent protection is triggered, the heating element is in resistive state and the current can be limited by the internal resistance. However, due to the high temperature of the resistive element itself, the trigger element of 0805L020YR is easier to deform, and then it will cut off the current to realize the protection, thus protecting the device from damage.

Features of 0805L020YR

0805L020YR has the following features:

• The current carrying capacity is strong, and the rated current can reach up to 20A.
• The working temperature is wide, up to -40℃ to 125℃.
• It is compact, about 8.05mm x 5.15mm x 2.8mm.
• Excellent surge capacity.
• High precision, no need to adjust the resistance.
• Fast response time.
• High reliability.

Conclusion

The 0805L020YR PTC resettable fuses are mainly used in the fields of telecom packages, peripheral products, and other peripheral products in the process of electricity transport, and its application has greatly improved the safety performance of electronic products. In addition, 0805L020YR has many excellent features such as strong current carrying capacity, wide working temperature range, fast response time, etc. Therefore, it is becoming more and more popular in the market.

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