ABM12W-27.0000MHZ-6-B1U-T3 is a low-profile quartz crystal operating at 27.0000 MHz in fundamental mode, designed for energy-saving wearables and IoT applications. It features a compact 1.6 x 1.2 x 0.4 mm package with 6 pF load capacitance, ±10 ppm frequency tolerance at +25°C, and ±10 ppm frequency stability over the operating temperature range of -20°C to +70°C. The crystal offers a maximum ESR of 100 O for the 24.0000-31.9999 MHz frequency range at 6 pF load capacitance, with shunt capacitance typically less than 1.0 pF. Its seam-sealed construction ensures long-term reliability, making it ideal for Bluetooth/BLE, wireless modules, ultra-low power MCUs, and height-constrained designs.