Hi ByronT,
Unfortunately, I can’t say that with any certainty. From what I have read, you’ll want one that complies with ISO11898-x, with “x” being different updates over the years. As far as I know, they are backwards compatible, so later ones would likely comply with earlier ones, but I am no expert in this area. If this is to repair a board in a car, then knowing the year might give you an idea which revision of the standard it might have used. I believe some of the older ones were lower speed devices, running up to 250kbps, whereas some of the newer ones can run faster, up to 5Mbps and have “flexible data rate” (CAN FD) capability.
Note that pin 5 has different functionality on some devices. Sometimes, it has no function, but in other cases it is used to set the I/O voltage for the TxD and RxD pins, which communicate with the local MCU or CAN controller IC. These voltages are typically either 5V or 3.0V to 3.3V. Still others use pin 5 for “Silent Mode”, but some put this functionality on pin 8. Others put “Standby” on pin 8.
Examples:
