Hermetic CAN transceiver for extreme-temperature environments
It is specified over a -55°C to 210°C operating range and housed in a hermetic 8-CFP (Ceramic Flat Package), which means it is suited for downhole drilling, engine-mounted electronics, or any sealed module that sees sustained high heat.
The base product number is SN65H, and the SHKQ suffix identifies the high-temperature, ceramic-package version.
What the 210°C rating means for the BOM
A 210°C maximum operating temperature is well above the 150°C typical of automotive under-hood parts. This part is rated for the full range, not just storage — it is meant to function while hot. That makes it a candidate for engine-mounted ECUs, exhaust-side sensors, or downhole tools where ambient can exceed 175°C. The 8-CFP package is a ceramic flat-pack with gull-wing leads, surface-mountable but requiring a reflow profile that respects the ceramic body's thermal mass. The 1/1 driver/receiver count is standard for a single CAN node; if the design needs galvanic isolation, an isolated DC-DC and a digital isolator on the controller side are needed, as this transceiver itself is not isolated.