ATC 800 B Series NPO Ceramic High RF Power Capacitors Datasheet

Category: American Technical Ceramics Corp, Capacitors, Electronics

The ATC 800 B Series NPO Ceramic Capacitors are specialized components designed for high RF power applications. These capacitors, characterized by their case B size, cover a capacitance range from 0.1 pF to 1000 pF and are notable for their rugged reliability and ultra-low Equivalent Series Resistance (ESR), using NPO dielectric material for stable performance.

Key Features

Quality Factor (Q): 2000 at 1 MHz, demonstrating high stability and minimal loss at radio frequencies.
Temperature Coefficient of Capacitance (TCC): ±0.30 PPM/°C, indicating minimal change in capacitance with temperature fluctuations between -55°C to +125°C.
Insulation Resistance (IR): 10^5 Megohms minimum at +25°C and 10^4 Megohms minimum at +125°C at rated WVDC, highlighting the capacitors’ ability to resist electrical leakage.
Working Voltage (WVDC) and Dielectric Withstanding Voltage (DWV): Varies with each capacitor value as noted in the Capacitance Values Table on page 2.
Retrace and Aging Effects: Retrace is less than 0.02% or 0.02 pF, whichever is greater, and aging effects are nonexistent.
Capacitance Drift: ±(0.02% or 0.02 pF), whichever is greater.

Applications

The capacitors are suited for numerous high-power RF applications, including VHF/UHF HDTV Broadcast Transmitters, Wireless Communications, Public Safety Radio, Avionics, Telecom, WiMAX, Microwave Communication Systems, and Satellite Systems.

Circuit Integration

These capacitors excel in circuit applications like High RF Power Filter Networks, Combiners, Couplers, Matching Networks, Output Coupling, Antenna Coupling, DC Blocking, and Bypassing.

Environmental Compliance and Testing

The series exceeds the requirements of EIA-198, MIL-PRF-55681, and MIL-PRF-123, enduring extensive environmental testing including thermal shock, moisture resistance, low voltage humidity, and life tests. The terminations accommodate a pull of 5 lbs. minimum and are RoHS compliant.

Part Numbering and Ordering

ATC provides a detailed part numbering system indicating the series, case size, capacitance, tolerance, working voltage, termination, and packaging options to facilitate accurate ordering.

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