ABM12W-36.0000MHZ-6-B1U-T3 is an IoT-optimized low-profile quartz crystal designed for energy-saving wearables and wireless applications. Operating at a fundamental frequency of 36.0000 MHz with a 6 pF load capacitance, this crystal features an exceptionally compact form factor of 1.6 × 1.2 × 0.4 mm, making it ideal for height-constrained designs. The device delivers optimized equivalent series resistance (ESR) of 60 O maximum over the operating temperature range of -20°C to +70°C, with frequency tolerance of ±10 ppm at +25°C and frequency stability of ±10 ppm over temperature. Additional specifications include shunt capacitance (C0) of 2.0 pF maximum, drive level of 10–100 µW, and 1-year aging of ±2 ppm. This crystal is ideal for Bluetooth/BLE modules, wireless connectivity, ultra-low power microcontrollers, and NFC applications, offering seam-sealed construction for long-term reliability in demanding IoT environments.