Ceramic Capacitors
Ceramic capacitors are non-polarised, fixed-value components widely utilised for decoupling, bypass, and filtering applications due to their compact size, high-frequency performance, and exceptional stability. These versatile components are essential for high-frequency circuits, offering low inductance and compact designs. They are ideally suited for noise reduction, signal coupling, and energy storage in various electronic circuits. We provide a comprehensive range of ceramic capacitors, encompassing several distinct types, including multilayer chip, disc, axial, plate, and high voltage variants.
Leading brands available on the platform, ensuring quality and performance for diverse electronic circuits, include Suntan, Murata, Vishay, TruCap, and Kemet.
Electrolytic Capacitors
Electrolytic capacitors are high-quality passive electronic components, available in various forms, including low impedance and surface mount types, and are commonly constructed from materials like aluminum and tantalum. These components are crucial for power supply filtering, energy storage, and coupling applications, offering high capacitance values within a compact footprint. Designed to operate within industry-standard temperature ranges, they are indispensable for power circuits.
Key brands that are available or generally recognised as leaders in the electrolytic capacitor market include Vishay, and Suntan.
Film Capacitors
Film capacitors, such as metallised polyester types, are miniature, non-inductive components recognised for their self-healing properties, stability, and reliability in various DC and impulse circuits. They are widely employed in communication equipment and consumer electronics. These capacitors provide excellent stability, low dissipation, and self-healing capabilities, making them well-suited for AC applications, filtering, and timing circuits.
Prominent brands in the film capacitor market include KEMET, Vishay, WIMA, jb Capacitors, and Faratronic.
Memory Backup Capacitors
Memory backup capacitors are high-capacity condensers, frequently employed as a dependable replacement or supplement for battery systems. They provide temporary power for data retention during power interruptions or in low-power applications. These components, often referred to as supercapacitors, offer a reliable alternative or supplement to traditional battery systems, distinguished by their long cycle life and rapid charging capabilities.
Leading manufacturers in this specialised field, reflecting the broader market landscape, include Nippon Chemi-Con, and Samwha.
Mica Capacitors
Mica capacitors, particularly silver mica types, are recognised as high-precision, high-stability, and highly reliable components. They are compact, moisture-resistant, and ideally suited for high-frequency and radio-frequency (RF) circuits. These capacitors are highly valued for their exceptional precision, superior stability, and unwavering reliability, making them indispensable for demanding high-frequency and RF applications. Their compact dimensions, high moisture resistance, and availability in small capacitance values make them suitable for sensitive circuits that require tight tolerances.
Prominent manufacturers in the mica capacitor market include Suntan.
Motor Run Capacitors
Motor run capacitors are essential components for specialist AC motor applications, providing a crucial phase shift to ensure continuous, efficient, and stable motor operation. They are critical for maintaining the uninterrupted performance of AC induction motors by supplying a continuous phase shift to the auxiliary winding, thereby guaranteeing efficient and stable operation. Available for specialist applications, these capacitors come in various configurations, including single and dual capacitance designs, often housed in oval or round cans.
Brands in the broader capacitor market that may include motor run types available in Rapid Electronics are Ducati and Ersa.
Suppression Capacitors
Suppression capacitors are crucial components engineered for power line filtering to mitigate electromagnetic interferences (EMI) and radio-frequency interference (RFI) in demanding automotive and industrial applications. These capacitors are vital for filtering noise in electronic circuits, ensuring system stability and compliance with stringent regulatory standards. Often categorized as X or Y capacitors, they are specifically designed for power line filtering in harsh environments.
Suntan and Kemet are also a relevant brand that offers suppression capacitors.
Tantalum Capacitors
Tantalum capacitors are a popular type of capacitor due to their exceptional volumetric efficiency, inherent reliability, and process compatibility. Surface mount tantalum capacitors are increasingly integrated into modern circuit designs, providing high stability and excellent capacitance in critical applications such as telecommunications, computer systems, and filter circuits. These capacitors are highly valued for their ability to deliver significant capacitance in a small footprint, making them a preferred choice in compact electronic designs.
KEMET is widely recognised as a leader in this segment, and Suntan also offers tantalum capacitors.
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