ECB2R1M12YM3L - Cooling Circuit Pressure

Chris

ECB2R1M12YM3L 1200 V SiC Power Module Data Sheet | Wolfspeed

I'm looking to use the ECB2R1M12YM3L 1200V SiC Power Module for a design and have a couple questions on the cooling circuit:

1. The datasheet lists the maximum pressure of the cooling circuit as 2.5 bar. Is this a proof or burst limit?
2. If I stay below 2.5bar, can we expect the module to operate without degradation?
3. If possible, I would like to request test results or the test spec used to arrive at the max pressure conclusion.

Thank you

Forum_Moderator

Thank you for your post, it has been approved and we will respond as soon as possible.

Chris

Following up on this request @Forum_Moderator Thank you

Eric_A

Good afternoon, Chris, 

Thank you for reaching out. Regarding your questions on the ECB2R1M12YM3L cooling circuit pressure: 

1. The 2.5 bar max listed in the datasheet refers to proof pressure.  
2. No degradation is expected if you operate below the rated pressure. There will be a negligible elastic deformation up to the 2.5 bar rating.
3. The performed pressure test cycled 0-3 bar at the inlet and found no leakage after 150k cycles.

Please let us know if you have further questions. 

Thank you.