MC18FD121J-F

Series:	MC
Packaging:	Bulk
Lead Free Status / RoHS Status:	--
Part Status:	Active
Capacitance:	120pF
Tolerance:	±5%
Voltage - Rated:	500V
Dielectric Material:	Mica
Operating Temperature:	-55°C ~ 125°C
Mounting Type:	Surface Mount
Package / Case:	1812 (4532 Metric)
Lead Spacing:	--
Features:	RF, High Q, Low Loss
Size / Dimension:	0.177" L x 0.126" W (4.50mm x 3.20mm)
Height - Seated (Max):	0.079" (2.00mm)

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Mica and PTFE Capacitors enable high-speed power delivery with a wide variety of applications from low to high frequencies. The MC18FD121J-F is a multi-layer, high-voltage, low-leakage, and temperature resistive capacitor with a robust dielectric. It uses a dielectric of mica and polytetrafluoroethylene (PTFE) film for its insulation and has a high-temperature rating of up to +125°C. The dielectric of the MC18FD121J-F offers stability that extends its operational longevity and maintenance-free performance, as well as attractive features such as a high insulation resistance, low dissipation factor, and high insulation breakdown voltage. Its electrical element is composed of copper, kraft paper, and PTFE film, and its outer construction is made of aluminum with a closed-end design, offering great mechanical strength. This gives it excellent protection and durability for the most extreme industrial applications.The MC18FD121J-F is ideal for use in digital circuits, antennas, and power lines, as well as in power converters, automotive and alternative energy motor drives, switch-mode power supplies, and high-frequency circuits. The capacitor is designed to have a low ESR, ESL, and minimum inductance that help to enhance the reliability and overall surge performance of the circuit.In terms of working principle, the MC18FD121J-F uses capacitive coupling to store electrical energy in the form of an electric field between two conductors separated by dielectric material. When a voltage is applied across the two conductors, an electric field is generated, causing the capacitance to store energy until the voltage is removed. This energy is then released back into the circuit as current, providing the same effect as a rechargeable battery. This capacitive process has applications in many areas including signal processing, power electronics, and telecommunications. It is also used in various industrial electric motor drives, high-frequency power supplies, medical imaging, broadcast microwave, and electronic instrumentation. Additionally, it can be used in pulse power supplies for welding and rapid heating processes in the food and chemical industries. Due to its unique dielectric composition and design features, the MC18FD121J-F is widely used in a number of electronics sectors. Its robust construction helps it to maintain its performance and reliability over the long-term even in the most extreme operating temperatures. Its low ESR and low-leakage design help to prevent high power losses under high-frequency conditions, allowing it to perform efficiently and reliably in a range of electronic applications. Whatever the application, the MC18FD121J-F provides an efficient and robust solution to a variety of power delivery challenges. The characteristics of its robust mica and PTFE materials offer stability and protection in the most extreme environments, while its low-leakage design helps to optimize efficiency in applications where low power losses are essential. With its wide range of features and functionalities, the MC18FD121J-F is an ideal choice for a range of electronic applications.

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