TSX-322525.0000MF20X-AJ0 is a MHz-range crystal unit manufactured by Seiko Epson Corporation, designed for both clock and RF reference applications. The device operates with a nominal frequency range of 16 MHz to 48 MHz using fundamental overtone order, housed in a compact 3.2 × 2.5 × 0.6 mm package. Key technical characteristics include a storage temperature range of -40°C to +125°C, operating temperature range of -40°C to +85°C, frequency tolerance of ±10 × 10?6 at +25°C, and a maximum drive level of 200 µW (recommended 10 µW). The load capacitance ranges from 7 pF to infinity, with motional resistance (ESR) specifications of 60 O maximum for 16–21 MHz and 40 O maximum for 21–48 MHz. This crystal unit is ideal for mobile phones, Bluetooth, W-LAN, ISM band radio, and microprocessor clock applications, offering RoHS compliance and lead-free construction for reliable performance in modern wireless and timing systems.