ABLS2-6.144MHZ-D4Y-T is a low-profile HC/49US (AT49) surface mount microprocessor crystal designed for compact electronic applications. The device features a reduced height of 3.3 mm with dimensions of 11.4 x 4.7 x 3.3 mm, making it suitable for thin equipment and space-constrained designs. Operating in fundamental AT mode at 6.144 MHz, it delivers an equivalent series resistance (ESR) of 100 O, with a load capacitance of 18 pF (standard), shunt capacitance maximum of 7 pF, and frequency stability of ±30 ppm over the operating temperature range of -40°C to +85°C. The crystal is RoHS compliant, hermetically sealed with no moisture sensitivity (MSL N/A), and suitable for reflow soldering processes. Common applications include computers, modems, microprocessors, and wireless communication systems where reliable timing and compact form factors are essential.