ABM12W-36.0000MHZ-7-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 7 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 operates over a temperature range of -20°C to +70°C with frequency tolerance of ±10 ppm at +25°C and frequency stability of ±10 ppm over the operating temperature range. With equivalent series resistance (ESR) specifications of 60 O maximum over the operating temperature range and a shunt capacitance (C0) of 2.0 pF maximum, this crystal delivers optimized performance with low power consumption (10–100 µW drive level). The seam-sealed construction ensures long-term reliability, making it well-suited for Bluetooth/BLE modules, wireless connectivity, ultra-low power microcontrollers, and IoT applications requiring compact, energy-efficient timing solutions.