ECS-TXO-20CSMV MultiVolt™ TCXOs ECS ECS-TXO-20CSMV MultiVolt™ Clipped Sine Wave Temperature-Compensated Crystal Oscillators (TCXOs) feature a 1.7V to 3.465V supply voltage range and come in a 2.0mm x 1.6mm x 0.8mm ceramic package. ECS-TXO-20CSMV TCXOs offer ±2.0PPM frequency tolerance and operate over a wide temperature range of up to -40°C to +85°C. ECS ECS-TXO-20CSMV MultiVolt TCXOs are ideal for portable, wireless applications where stability is critical.