There are two major types of interference suppression/AC line filter safety capacitors, type X and type Y. The function of these capacitors is to protect against surges and transients, as well as providing EMI filtering. Safety capacitors are circuit-specific and serve to protect the circuit and the user from high-voltage surges by. During the certification process, two key tests performed are the impulse and endurance tests shown below. These are done to verify that the X/Y capacitor can withstand 10 impulses of. T1= 10 second, T2=700 second in Telecom applications (IEC 60950) T1= 1.2 second, T2=500 second in Mains power applications (IEC 60384.
What is a safety capacitor?
Safety capacitors are circuit-specific and serve to protect the circuit and the user from high-voltage surges by shunting the impulse energy to ground. One common cause of such surges is lightning strikes. X Capacitors: Also known as "across-the-line capacitors."
Tecate group offers a family of AC Safety Capacitors for X- and Y-class applications that require across-the-line and line-to-ground protection. This product is UL recognized and IEC 60384-1 compliant, and available in SMD and radial through-hole packages.
Tecate Group offers X and Y safety capacitors in both ceramic SMD styles and polypropylene film capacitors in a radial box style package. The Tecate ceramic CMX X/Y capacitors are certified to various agency standards, which include IEC384-14, EN132400, IEC 60950, and UL60950.
What is a x/y safety capacitor?
X/Y Capacitors: Some safety capacitors come with a combination designation, for example, X1/Y2. This simply means that the capacitor can be used as an X1 capacitor in an across-the-line application or as a Y2 capacitor in the line-to-ground portion of the circuit. Tecate offers both X1/Y2 and X2/Y3 multilayer ceramic safety capacitors.
What types of SMD ceramic capacitors are available?
We also support a wide range of SMD Ceramic Capacitors from 0201 to 3640 sizes, at 6.3Vdc to 8KVdc, in NPO, X6S, X7R, X5R, and Y5V temperature coefficients. All Safety Certified Capacitors are recognized by TUV, U/L, CSA, and CQC agencies. Holy Stone International functions as the direct sales office for North America.
Class X safety capacitors are used between the "live" wires carrying the incoming AC current. These capacitors are used in applications where failure of the capacitor will not lead to risk of electrical shock to the user. A capacitor failure in this position will usually cause a fuse or circuit breaker to open.