The ECS-250-8-36CKM-TR is a miniature SMD crystal oscillator designed for Bluetooth, LoRa WAN, and wireless applications. It features a compact 2.5 × 2.0 × 0.55 mm footprint with a low-profile design, operating across a frequency range of 12.000 to 80.000 MHz with a load capacitance of 8 pF. The device maintains frequency tolerance and stability of ±50 ppm across the operating temperature range of -20°C to +70°C, with a maximum drive level of 100 µW and shunt capacitance of 5 pF. Its extended temperature range, RoHS compliance, and symmetrical pad configuration make it ideal for IoT, wearable, and portable wireless devices requiring reliable frequency control in compact form factors.