We do have GB4943.1-2011 certification up to 5000 m for the ADuM2200/01 family in the latestdata sheet. GB4943.1-2011 is essentially equivalent to IEC 60950-1, but has been adapted to the local requirements for China. We are obtaining other certifications and they will be added to our Safety and Regulatory page soon. Please contact us if there are other products requiring certification up to 5000 m.
I would like to add some detail to the previous discussion.
CSA60950 can be used for any altitude. The standard refers the designer to the insulation coordination standard IEC60664-1 which has table A.2 Altitude Correction Factors. The clearance must be scaled from the 2000m standard values listed in IEC60950 and GB4943.1-2011 standards. For 5000m the correction factor is 1.48 x the 2000m table value.
If you need parts qualified for use in China, then it is best to get a part with GB4943.1 certification since the required temperature and humidity test conditions are higher for China than what is required for Europe. The GB cert will match the local requirements. ADI provides GB certification for many of our most popular parts including the ADuM2201.
