CMR04F301FPCR

Series:	CMR
Packaging:	Bulk
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Capacitance:	300pF
Tolerance:	±1%
Voltage - Rated:	300V
Dielectric Material:	Mica
Operating Temperature:	-55°C ~ 150°C
Mounting Type:	Through Hole
Package / Case:	Radial
Lead Spacing:	0.150" (3.80mm)
Features:	General Purpose
Size / Dimension:	0.390" L x 0.220" W (9.90mm x 5.60mm)
Height - Seated (Max):	0.382" (9.70mm)

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Mica and PTFE CapacitorsMica and PTFE capacitors are types of electrical capacitors that are often used in a variety of electrical applications, such as power supplies, amplifiers, filters, analog-to-digital converters, signal conditioners, and much more. They are composed of two sheet materials, mica and polytetrafluoroethylene (PTFE), which create a dielectric layer between two conductors separated by an insulating material. This dielectric layer gives the capacitor its capacitance, which is measured in Farads.CMR04F301FPCR is one type of mica and PTFE capacitors, with the FPCR standing for “polytetrafluoroethylene film dielectric with water repellent treatment”. It is developed by Cornell Dubilier, a manufacturer of passive electronic components, and is commonly used in power electronic applications because of its high temperature and voltage ratings. This type of capacitor also has a high capacitance in a small package, making it ideal for space-constrained designs.The construction of CMR04F301FPCR is composed of two outer plates made of metalized polypropylene film, as well as two inner plates made of encapsulated mica. The mica plates are separated and insulated by the PTFE dielectric layer, which imparts the capacitor its capacitance and also increases the voltage rating. The metalized outer plates act as the electrodes of the capacitor, and are connected to the electrical circuit. To improve the reliability of the capacitor, a water repellent treatment is applied to the PTFE layer so it can withstand high levels of humidity.The working principle of CMR04F301FPCR is relatively simple. When power is connected to the outer plates, an electric field is generated between them, which is strong enough to draw current from the electrical circuit and store energy in the capacitor. As the capacitor stores energy, the voltage across its terminals increases, which is known as charging. The stored energy can then be released from the capacitor back into the circuit, or discharged, when the power is removed from the terminals.CMR04F301FPCR capacitors are commonly used in power electronic applications such as power converters, inverters, motor drives, and motor controls, because they can withstand high temperatures and voltage ratings. They are also widely used in the automotive industry for electric vehicles, power supplies, and electronic control systems. Additionally, they can be used in audio and RF applications where smaller, lightweight designs are required.Overall, CMR04F301FPCR capacitors provide excellent performance in a variety of applications with their high temperature and voltage ratings. They are also highly reliable and can withstand high levels of humidity. As such, they are an excellent choice for designers looking for a compact, lightweight solution for their power electronics and audio applications.

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