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 Capacitors are designed for high RF power applications across various frequencies, from VHF through microwave bands. These capacitors blend ruggedness and reliability for consistent performance.

Key Features

Case B Size: The capacitors come in a standardized case size with a capacitance range of 0.1 pF to 1000 pF.
Ultra-Low ESR: Thanks to proprietary dielectrics and conductive metal electrode systems, the 800 B Series capacitors offer extremely low Equivalent Series Resistance (ESR), enhancing their thermal performance and reliability in RF power contexts.
Quality Factor (Q): Rated at 2000 @ MHz, indicating a high level of efficiency and low energy loss.

Performance Specifications

Temperature Coefficient of Capacitance (TCC): 0.30 PPM/°C, operational from -55°C to +125°C, which shows a stable capacitance over this temperature range.
Insulation Resistance (IR): High minimum insulation resistance measured at two temperature points, ensuring insulation integrity and reduction in leakage current.
RoHS Compliant/Lead-Free Terminations: Meeting contemporary environmental and safety standards.

Ratings and Compliance

Working Voltage: Varies by capacitive value; details provided on subsequent pages.
Dielectric Withstanding Voltage (DWV): Rated at 250% of working voltage, indicative of robust construction.
Piezoelectric Effects: There are none, indicating stability and absence of capacitance variation under stress or applied voltage.
Life Test: Passed MIL-STD-202 Method 108, guaranteeing longevity and durability under extreme conditions for 2000 hours with 200% WVDC applied at 125°C.

Applications and Environmental Tests

The 800 B Series capacitors are well-suited for circuit applications in areas such as high RF power networks, broadcast transmitters, and various wireless communications systems due to their reliable operation under diverse and demanding conditions. Environmental testing has shown capacitance drift within a minimal range, no aging effects, and high resistance to thermal shock and moisture. The series exceeds standards set by EIA-198, MIL-PRF-55681, and MIL-PRF-123, reinforcing its adaptability to challenging environments.