MIL-PRF-20 Capacitors

MIL-PRF-20 capacitors are established reliability ceramic through-hole capacitors, designed to meet strict military standards. They undergo rigorous testing to ensure low failure rates and consistent performance, especially in applications that require temperature compensation. These capacitors are commonly used in military, defense, and aerospace applications and are available in various voltage ranges and configurations, including leaded and surface-mounted styles.

MIL-PRF-20 Ceramic Through-Hole Capacitors are established reliability components, manufactured per MIL-PRF-20 standards. To ensure consistent failure rate designations, periodic maintenance testing is conducted regularly. Each production lot undergoes 100% performance testing to confirm compliance with the specified failure rate.

MIL-PRF-20 Specification: This specification covers both established reliability (ER) and non-ER, temperature-compensating, fixed ceramic capacitors. These are primarily used in circuits requiring temperature compensation, such as bypass and coupling applications. ER capacitors meet specific failure rate levels, ranging from 1.0% to 0.001% per 1,000 hours, based on life test parameters. These levels are set with 90% confidence and a 10% producer’s risk. Testing uses an 8:1 acceleration factor to relate life data at 200% of rated voltage to the applicable high-test temperature. ER capacitors are tracked through a part-per-million (ppm) quality system and Statistical Process Control (SPC) methods to ensure consistency in production.

Multilayer Ceramic Capacitors: These capacitors come in various sizes and configurations, including leaded devices and surface-mounted chips. Leaded versions feature axial and radial leads. The core capacitor element, known as a chip, consists of thin dielectric layers with alternating metal electrodes. The structure is fired at high temperatures, producing a monolithic block that delivers high capacitance in a compact form. After firing, conductive terminations are applied based on the intended use.

Features & Benefits:

• Voltage Range: 50, 100, 200V
• Voltage-Temperature Limits: CG, CH, CJ, CK, CX
• Mil-Spec Compliance: QPL MIL-PRF-20 (M, P, R, S failure rates)

Typical Applications:

• Military
• Defense
• Aerospace