CMR05F221FPDM

Series:	CMR
Packaging:	Bulk
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Capacitance:	220pF
Tolerance:	±1%
Voltage - Rated:	500V
Dielectric Material:	Mica
Operating Temperature:	-55°C ~ 150°C
Mounting Type:	Through Hole
Package / Case:	Radial
Lead Spacing:	0.224" (5.70mm)
Features:	General Purpose
Size / Dimension:	0.461" L x 0.201" W (11.70mm x 5.10mm)
Height - Seated (Max):	0.382" (9.70mm)

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Mica and PTFE Capacitors, or "MLCCs," are a type of capacitor comprised of two electrodes separated by a dielectric material. CMR05F221FPDM is a kind of MLCCs specific to the insulation-mounting application field, which is popular for its excellent performance in suppressing electromagnetic interference for circuits operating in harsh environments.The structure and working principle of CMR05F221FPDM can be summarized as follows:CMR05F221FPDM consists of two layers of PTFE (Polytetrafluoroethylene) film, each separated by a thin layer of nickel-clad mica sheet. The two PTFE layers are laminated together with a conductive polymer between them. The nickel-clad mica layer insulates the conducting polymer from the two PTFE layers, increasing the capacitance and enabling the application in an insulation-mounting environment.When an electrical current is imposed on the CMR05F221FPDM, the electric field created between the two PTFE layers causes ions to be drawn from the conductive polymer towards the PTFE layers. This results in the accumulation of positive charges on one PTFE layer and the accumulation of negative charges on the other. This, in turn, creates an electrical double layer, further increasing capacitance.The CMR05F221FPDM is often used in its insulation-mounting application field due to its strong anti-interference properties. The combination of the dielectric material, the conductive polymer, and the mica sheet helps to reduce radiated emissions by creating a barrier between the circuits and any external noise source. Additionally, the use of PTFE ensures that the internal structure is highly resistant to moisture and oxidation. This feature enables the capacitor to last over a long period of time and to operate under extreme environmental conditions.In conclusion, CMR05F221FPDM is an ideal option for insulation-mounting application fields, especially in harsh environments where reducing radiated emissions is essential. Its unique structure and working principle ensure high capacitance, strong anti-interference properties, and excellent resistance to moisture and oxidation, making it a highly reliable capacitor for demanding applications.

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