About aluminum electrolytic capacitor resistance to temperature cycling (Thermal Shock)
JIS C5101-4 defines tests of temperature cycling for aluminum electrolytic capacitors.
These tests are conducted to determine performance when capacitors are repeatedly subjected to temperature cycling.
There are also tests called a "Thermal Shock test" and a "Temperature Cycling test".
The test parameters of JIS C5101-4 are as indicated in Table 1.
Table 1: Temperature cycling test parameters
| Tier | Test temperature | Time[minutes] | Number of cycles |
|---|---|---|---|
| 1 | Category minimum temperature±3℃ | 30 | 5 OR 100 |
| 2 | Temperature transition | 5 | |
| 3 | Category maximum temperature±2℃ | 30 | |
| 4 | Temperature transition | 5 |
※For snap-in type and screw terminal type capacitors, the time for Tier 1 and Tier 3 is 180 minutes.
※For conductive polymer aluminum electrolytic capacitors and conductive polymer hybrid aluminum electrolytic capacitors, if there are doubts about the leakage current, then measure after voltage treatment.
Test parameters in AEC-Q200
AEC-Q200 defines a Temperature Cycling test and outlines test parameters in Table 2.
Depending on the product, we may be able to share test data, so please contact us separately.
Table 2: AEC-Q200 test parameters
| Tier | Test temperature | Time[minutes] | Number of cycles |
|---|---|---|---|
| 1 | -40℃ | 15/30※ | 1000 |
| 2 | Temperature transition | 1 | |
| 3 | Category maximum temperature (Do not exceed 125℃) |
15/30※ | |
| 4 | Temperature transition | 1 |
※If the component mass exceeds 28g, the Tier 1 and Tier 3 time is 30 minutes.
※Measure 24 hours ± 4 hours after test time. The condition of the exterior sleeve is not included.
If you have any questions or inquiries that do not apply to the above, please contact us at the following address.