ATC 800 B Series NPO Ceramic, High RF Power Ultra-Low ESR Multilayer Capacitors

Category: American Technical Ceramics Corp, Capacitors, Electronics

Overview

The ATC 800 B Series NPO Ceramic, High RF Power Ultra-Low ESR Multilayer Capacitors are designed to offer unparalleled performance in high-frequency RF power applications. They are characterized by their ruggedness, reliability, and compliance with RoHS and Lead-Free directives.

Key Features and Specifications

The capacitors in this series are equipped with a proprietary NPO low loss dielectric that enables superior heat transfer capabilities essential for high RF power applications. Their electrical and mechanical features include a wide capacitance range of 0.1 pF to 1000 pF and a low ESR, which is a result of their conductive metal electrode systems, optimized case geometries, and engineered dielectrics.

Quality Factor (Q): The series has a Q of 2000 at 1 MHz, indicating high efficiency and low energy loss at high frequencies.
Temperature Coefficient of Capacitance (TCC): The TCC is stable at 0 ± 30 PPM/°C over a wide temperature range of -55°C to +125°C.
Insulation Resistance (IR): At room temperature, the IR is at least 10⁵ Megohms, and 10⁴ Megohms at +125°C, ensuring minimal current leakage.
Working Voltage (WVDC): Referenced in the Capacitance Values Table on page 2 of the datasheet, values are category-specific.
Dielectric Withstanding Voltage (DWV): Measured at 250% of the rated WVDC for 5 seconds.
Retrace, Aging Effects, and Piezoelectric Effects: The capacitors demonstrate minimal retrace and no significant aging or capacitance variation due to voltage or pressure changes.
Capacitance Drift: The capacitance drift is limited to the greater of ±(0.02% or 0.02 pF).
Operational Temperature Range: The operational range spans from -55°C to +125°C with no voltage derating.

Environmental and Mechanical Endurance

The 800 B Series Capacitors are manufactured to meet and exceed EIA-198, MIL-PRF-55681, and MIL-PRF-123 standards. They perform reliably under several environmental tests:

Thermal Shock: Tested with no degradation of performance per MIL-STD-202, Method 107, Condition A.
Moisture Resistance: Assessed following MIL-STD-202, Method 106 standards.
Low Voltage Humidity: Subjected to 85°C and 85% relative humidity for a minimum of 240 hours with 1.5 Volts DC applied.
Life Test: The capacitors can endure 2000 hours at 125°C with 200% WVDC applied, as per MIL-STD-202, Method 108.

Applications and Usage

The capacitors are suitable for a variety of RF applications across a spectrum of industries, including VHF/UHF broadcasts, wireless communications, avionics, and telecommunications. They excel in circuit applications such as filter networks, power combiners, matching networks, antenna coupling, and DC blocking and bypassing.

Manufacturing Excellence

ATC is an ISO 9001 registered company, hinting at a commitment to quality manufacturing processes. American Technical Ceramics manufactures the 800 B Series and provides sales and support through its North America, Europe, and Asia divisions.