Unctional, Iagram, Eliability – B&B Electronics NTPS-48-5 - Datasheet User Manual
Page 7: 48v, 5a, s

CS10.481
C–Series
48V, 5A, S
INGLE
P
HASE
I
NPUT
Nov. 2006 / Rev.1.1 DS-CS10.481-EN
All parameters are specified at 48V, 5A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
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7/20
10. F
UNCTIONAL
D
IAGRAM
Fig. 10-1 Functional diagram
+
+
-
-
V
OUT
Input Fuse
&
Input Filter
Output
Voltage
Regulator
Power
Converter
Output
Filter
DC
ok
L
N
Output
Over-
Voltage
Protection
Input
Rectifier
&
Inrush
Limiter
115/230V
Auto Select
11. R
ELIABILITY
AC 100V
AC 120V
AC 230V
Lifetime expectancy
min.
45 000h
60 000h
96 000h
40°C, 48V, 5A
min.
33 000h
42 000h
63 000h
40°C, 48V, 6A
min.
97 000h
106 000h
122 000h
40°C, 48V, 2.5A
min.
126 000h
15 years
15 years
25°C, 48V, 5A
MTBF SN 29500, IEC 61709
627 000h
653 000h
830 000h
40°C, 48V, 5A
536 000h
558 000h
709 000h
40°C, 48V, 6A
1 060 000h
1 104 000h
1 403 000h
25°C, 48V, 5A
MTBF MIL HDBK 217F
459 000h 450
000h 475
000h
40°C, 48V, 5A, Ground Benign GB40
413 000h
406 000h
426 000h
40°C, 48V, 6A, Ground Benign GB40
655 000h
642 000h
659 000h
25°C, 48V, 5A, Ground Benign GB25
The Lifetime expectancy shown in the table indicates the operating hours (service life) and is determined by the
lifetime expectancy of the built-in electrolytic capacitors.
Lifetime expectancy is specified in operational hours. Lifetime expectancy is calculated according to the capacitor’s
manufacturer specification. The prediction model allows a calculation of up to 15 years from date of shipment.
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.