Jul. 06, 2022
Safety capacitors are used in occasions where after the capacitor fails, it will not cause electric shock and will not endanger the human body. Because the safety capacitor will discharge rapidly after the external power supply is disconnected, there will be no inductance when touched by hand.
Safety capacitors are divided into safety X capacitors and safety Y capacitors. Although safety X capacitors and safety Y capacitors belong to safety capacitors, they have different appearances and are easy to distinguish. However, Y capacitors are also divided into Y1 capacitors, Y2 capacitors, Y3 capacitors and Y4 capacitors. The more familiar capacitors are Y1 and Y2 capacitors, while Y3 and Y4 capacitors are used less often.
The appearance of the safety Y1 capacitor and the safety Y2 capacitor are exactly the same, and the nominal capacitance is also the same. It is easy to buy the wrong safety capacitor without knowing the differences between them. This article will tell you the differences between safety Y1 capacitors and Y2 capacitors.
1. Different Foot Spacing
The Y1 capacitor has a larger pin spacing. Usually, the safety Y1 capacitor has a pin spacing of 9.5MM or 10MM; the safety Y2 capacitor has a pin spacing of 7.5MM.
2. Different Withstand Voltage
Y1 capacitor has a high withstand voltage, the rated voltage of the Y1 is 500VAC, and the withstand voltage can reach 4000VAC; the rated voltage of Y2 is 500VAC, and the withstand voltage can reach 1800-2600VAC.
3. Different Insulation
The insulation types of the two are different. The safety Y1 capacitor belongs to double insulation (JD); the safety Y2 capacitor belongs to basic insulation (JY).
4. Different Occasions
The use of the two is different. The Y1 capacitor is used to bridge the primary and secondary sides; the Y2 capacitor is used to bridge the secondary side to protect the earth, that is, the FG line.
5. Different Volumes
Same capacitance but different volume. In the case of the same capacitance, the volume of the safety Y1 capacitor is appropriately larger than that of the safety Y2 capacitor.
Are you clear of the differences between the Y1 and Y2 capacitors now? Select a reliable manufacturer when purchasing ceramic capacitors can avoid a lot of unnecessary trouble. JYH HSU (or Dongguan Zhixu Electronics) not only has full models of ceramic capacitors with guaranteed quality, but also offers worry-free after-sales. Welcome to contact us for inquires or business cooperation.
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