PXB4219EV3.3
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36750715-PXB4219EV3.3
Framer DS1/E1/T1/E1 3.3V 256-Pin PBGA
The operating temperature is the range of ambient temperature within which a power supply, or any other electrical equipment, operate in. This ranges from a minimum operating temperature, to a peak or maximum operating temperature, outside which, the power supply may fail.
a count of all of the component leads (or pins)
The voltage level by which an electrical system is designated and to which certain operating characteristics of the system are related.