PIM60.121
Feb. 2022 / Rev. 2.0 DS-PIM60.121-EN
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All parameters are specified at 24V, 5A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
9.
Lifetime Expectancy
The Lifetime expectancy shown in the table indicates the minimum operating hours (service life) and is determined by
the lifetime expectancy of the built-in electrolytic capacitors. Lifetime expectancy is specified in operational hours and is
calculated according to the capacitor’s manufacturer specification.
Please note: The manufacturer of the electrolytic capacitors only guarantees a maximum life of up to 15 years (131 400h).
Any number exceeding this value is a calculated theoretical lifetime which can be used to compare devices.
AC 100V
AC 120V
AC 230V
Lifetime expectancy
89 000h
103 000h
119 000h
At 12V, 5A and 40°C
241 000h
249 000h
256 000h
At 12V, 2.5A and 40°C
252 000h
292 000h
335 000h
At 12V, 5A and 25°C
680 000h
704 000h
724 000h
At 12V, 2.5A and 25°C
10. MTBF
MTBF stands for Mean Time Between Failure, which is calculated according to statistical device failures, and indicates
reliability of a device. It is the statistical representation of the likelihood of a unit to fail and does not necessarily represent
the life of a product.
The MTBF figure is a statistical representation of the likelihood of a device to fail. A MTBF figure of e.g. 1 000 000h means
that statistically one unit will fail every 100 hours if 10 000 units are installed in the field. However, it cannot be determined
if the failed unit has been running for 50 000h or only for 100h.
For these types of units the MTTF (Mean Time To Failure) value is the same value as the MTBF value.
AC 100V
AC 120V
AC 230V
MTBF SN 29500, IEC 61709
1 542 000h
1 649 000h
1 673 000h
At 12V, 5A and 40°C
2 768 000h
2 911 000h
2 925 000h
At 12V, 5A and 25°C
MTBF MIL HDBK 217F
695 000h
707 000h
685 000h
At 12V, 5A and 40°C; Ground Benign GB40
993 000h
1 008 000h
982 000h
At 12V, 5A and 25°C; Ground Benign GB25
189 000h
192 000h
197 000h
At 12V, 5A and 40°C; Ground Fixed GF40
246 000h
250 000h
258 000h
At 12V, 5A and 25°C; Ground Fixed GF25