Hirose Electric ZE064W connectors are a line of small, waterproof connectors for use in automotive and industrial applications. These connectors feature IP67/IP69K ratings when mated, mating keys to prevent mismating, and a retainer for increased contact reliability. Vibration resistance and contact reliability is improved drastically through the use of a dual-layer spring, and a 3-point contact design. Hirose Electric ZE064W connectors are suitable for harsh environments, such as industrial and automotive applications.