XO type, frequency, and AEC-Q200 grade
The ECS-2520Q-33-330-BS-TR is a standard XO clock oscillator running at 33 MHz with an HCMOS output stage on a 3.3V rail, listed as Active by ECS Inc. The AEC-Q200 rating is the signal here — this part is qualified for automotive environments, which means it has passed the temperature, vibration, and humidity stress sequence defined in that standard, making it deployable in under-hood and transmission-control units that see -40 °C cold-starts and sustained 125 °C operation.
