YM120C30N601

Resistance - 25°C (Typ):	600 Ohms
Approvals:	--
Lead Spacing:	0.200" (5.08mm)
Thickness (Max):	--
Height - Seated (Max):	0.256" (6.50mm)
Size / Dimension:	0.157" Dia x 0.177" W (4.00mm x 4.50mm)
Package / Case:	Radial, Disc
Mounting Type:	Through Hole
Ratings:	--
Operating Temperature:	0°C ~ 55°C
Series:	YM
Current - Trip (It):	40mA
Current - Hold (Ih) (Max):	28mA
Current - Max:	200mA
Voltage - Max:	265V
Type:	Ceramic
Part Status:	Obsolete
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Introduction to PTC Resettable Fuses
PTC (positive temperature coefficient) resettable fuses are devices that are used to protect electronics from overloads and short circuits. They are designed to reset themselves after the overload or short circuit has been cleared. These devices are becoming increasingly popular in modern technology applications as they offer a cost-effective and reliable means of protection.YM120C30N601 Application Field and Working Principle
YM120C30N601 is a PTC resettable fuse with a high melting temperature of 150℃. It features small size,low power consumption, and fast response time of 0.2s. It is mainly used in backlighting systems, motor drives, and other medium and high-power electronic applications.This device works by using a specific material, called a polymeric positive temperature coefficient (PPTC), which is designed to become a resistor if current flows through it. When the continuous current exceeds the rated value, the PPTC immediately becomes a resistor, rapidly increasing the temperature and melting the internal fusible link. This will switch off the circuit and prevent any further fault currents from flowing.Once the fault has been cleared, the PPTC will cool down and return to its original state, allowing the protected circuit to resume its original flow of current. This makes YM120C30N601 an ideal device for over current protection as it can provide protection multiple times without needing replacement.In addition, YM120C30N601 features high dielectric strength, which means it can handle voltage surges without significant damage to the device. This makes it suitable for applications involving wide voltage fluctuations such as motors, solar panels, and other electronics.Conclusion
The YM120C30N601 PTC resettable fuse is a highly reliable and efficient device suitable for high-power electronic applications. Its small size, low power consumption, and fast response time make it an ideal device for over current protection, as it can provide protection multiple times without needing replacement. In addition, its high dielectric strength enables it to handle voltage surges without damage. This makes it suitable for a wide range of applications.

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