FEMTOSMDC020F-2 Circuit Protection

PTC Resettable fuses provide an alternative to traditional fuses for circuit protection that is more reliable and cost effective. The FEMTOSMDC020F-2 is one such example of a PTC resettable fuse specifically used for PCB protection in consumer electronics. This particular 130V/8A device is a two-pole integrated device that is Lead Free Compliant and also RoHS compliant. It is important to note that there are other types of PTC resettable fuses available as well, such as single and three-pole models.

The FEMTOSMDC020F-2 unit offers an extremely low profile design with a package outline height of only 0.67mm. It has a rated current of 8A (at 10K and 530K resistor) and a rated voltage of 130V. The device offers an operating temperature range of -40 to +85 degrees Celsius and a low self-heating rate of 15°C/W. The fuse is a low voltage resettable fuse with a response time of 2 seconds to over current or fault conditions.

The working principle of the FEMTOSMDC020F-2 PTC resettable fuse is based around the use of a PTC (positive temperature coefficient) thermistor. When there is an over-current or over-voltage fault on the circuit, the thermistor provides a high impedance. This impedance changes according to the temperature rise caused by the fault. Once the current or voltage fall below the device\'s fuse protection values, the device will reset and the thermistor will return to its low impedance state. In addition, the fuse has a thermal cut-off feature which prevents it from resetting if the temperature exceeds 105°C.

The application field of the FEMTOSMDC020F-2 PTC resettable fuse is broad. It is primarily used in automotive circuits, industrial applications, and consumer electronics products. Its low profile design makes it especially useful in space constrained applications. It is also suitable for applications that require the circuit to be re-enabled in the event of an over-current or over-voltage event. Examples of such applications include motor control systems, converter circuits, power supplies, displays, and sensors.

The FEMTOSMDC020F-2 PTC resettable fuse is a robust and efficient circuit protection device. It is designed to handle high inrush currents and has a wide operating temperature range. It is RoHS and Lead Free Compliant, making it an ideal solution for protecting circuits in consumer electronic products. The device has a robust construction that will withstand harsh environments, making it suitable for industrial applications as well. The FEMTOSMDC020F-2 is a reliable and cost-effective solution for protecting circuits from damage due to fault currents and voltages.