MMD Components in Santa Margarita, Calif., is introducing an ultra-miniature quartz crystal with a frequency range of 16 MHz to 60 MHz able to operate in temperatures from -40 to 85 degrees Celsius. Measuring 2 by 2.5 millimeters, with a maximum profile of 0.55 millimeters, the X series crystals are hermetically sealed in a four-pad ceramic package and delivered on tape and reel. They are for applications, such as Bluetooth devices, PDAs, mobile phones, and MP3 players. The crystals have a frequency tolerance/stability rate as high as ±50 PPM/±100 PPM; are 100 percent RoHS compliant; and feature ruggedized construction for extreme vibration and shock applications, meeting MIL-STD-883 and MIL-STD-202 specifications. For more information, visit MMD Components online at www.mmdcomp.com.