The ABLS-24.000MHZ-B4-T is an HC/49US (AT49) SMD low-profile crystal oscillator designed for precision frequency control in electronic applications. Operating at a fundamental frequency of 24.000 MHz, this crystal features a compact form factor of 11.5 × 4.7 × 4.2 mm and is suitable for RoHS reflow processes. The device exhibits an equivalent series resistance (ESR) of 100 O maximum, a shunt capacitance of 7 pF maximum, and a load capacitance of 18 pF, with frequency tolerance of ±50 ppm at +25°C and frequency stability of ±50 ppm over the operating temperature range of -20°C to +70°C. The crystal is hermetically sealed with no moisture sensitivity (MSL N/A) and features a maximum drive level of 1 mW (100 µW typical), making it ideal for computers, modems, microprocessors, and wireless applications requiring stable timing references.