ECS CSM-8A SMD Crystals feature a 6MHz to 6000MHz frequency range, up to 100Ω ESR rating, and a low-profile design. These crystals come in a glass-sealed ceramic package and offer tight stability and high reliability. ECS CSM-8A SMD Crystals have a -10°C to +70°C operating temperature range. The series is ideal for PCMCIA, Ethernet, and fax modem card applications.