The ABL-10.000MHZ-B2 is an HC/49US (AT49) microprocessor crystal oscillator designed for precision timing applications in microprocessors and communication systems. This crystal operates at a fundamental frequency of 10.000 MHz with a frequency tolerance of ±50 ppm and frequency stability of ±50 ppm over the operating temperature range of -20°C to +70°C. The device features a hermetically sealed metal package with dimensions of 11.5 × 5.0 × 3.5 mm, an equivalent series resistance (ESR) of 50 O maximum, a shunt capacitance of 7 pF maximum, and a load capacitance of 18 pF. With high reliability, low cost, tight stability, and proven resistance-welded construction, this crystal is ideal for home electronics, computers, modems, communications equipment, and high-precision timing applications requiring extended temperature performance.