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FPS300.246-036-104
FPS300.246-049-102
All parameters are specified at 24 V, 12.5 A, 230 Vac, 25 °C ambient and after a 5 minutes run-in time unless otherwise noted.
Apr. 2022 / Rev. 0.2 FPS300-EN
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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.
The manufacturer of the electrolytic capacitors only guarantees a maximum life of up to 15 years (131 400 h). Any number
exceeding this value is a calculated theoretical lifetime which can be used to compare devices.
1AC 100V 1AC 120V
1AC 230V
Calculated lifetime expectancy
88 600h
121 100h
175 200h
At 24V, 12.5A and 40°C
257 900h
319 790h
410 500h
At 24V, 6.25A and 40°C
247 300h
352 300h
432 500h
At 24V, 12.5A and 25°C
530 100h
610 800h
834 400h
At 24V, 6.25A and 25°C
MTBF
MTBF stands for
M
ean
T
ime
B
etween
F
ailure, 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.
A MTBF figure of e.g. 1 000 000 h means that statistically one unit will fail every 100 hours if 10 000 units are installed in the
field. However, it can not be determined if the failed unit has been running for 50 000 h or only for 100 h.
For these types of units the MTTF (
M
ean
T
ime
T
o
F
ailure) value is the same value as the MTBF value.
1AC 100V 1AC 120V
1AC 230V
Calculated lifetime expectancy
88 600h
121 100h
175 200h
At 24V, 12.5A and 40°C
257 900h
319 790h
410 500h
At 24V, 6.25A and 40°C
247 300h
352 300h
432 500h
At 24V, 12.5A and 25°C
530 100h
610 800h
834 400h
At 24V, 6.25A and 25°C
MTBF MIL HDBK 217F
106 000h
118 000h
135 000h
At 24V, 12.5A and 40°C; Ground Benign GB40
160 000h
175 000h
195 000h
At 24V, 12.5A and 25°C; Ground Benign GB25
29 000h
32 000h
35 000h
At 24V, 12.5A and 40°C; Ground Fixed GF40
39 000h
42 000h
46 000h
At 24V, 12.5A and 25°C; Ground Fixed GF25