cui.com
date 02/23/2017 │ page 4 of 5CUI Inc │ SERIES: PSK-20B │ DESCRIPTION: AC-DC POWER SUPPLY
DERATING CURVE
OutputPowervs.AmbientTemperature
(NaturalConvention)
Ambient Temperature (°C)
Load (%)
-25
50
75
25
-15 15 45 65
-5 525355575
0
0
EFFICIENCY CURVES
5VdcOutputEfciencyCurve
(at25°C)
55.0
60.0
65.0
70.0
75.0
80.0
85.0
Efficiency (%)
10
20 30 40 50 60 70 80 90 100
85 Vac
115 Vac
230 Vac
264 Vac
9VdcOutputEfciencyCurve
(at25°C)
55.0
60.0
65.0
70.0
75.0
80.0
85.0
Efficiency (%)
10
20 30 40 50 60 70 80 90 100
85 Vac
115 Vac
230 Vac
264 Vac
12VdcOutputEfciencyCurve
(at25°C)
55.0
60.0
65.0
70.0
75.0
80.0
85.0
Efficiency (%)
10
20 30 40 50 60 70 80 90 100
85 Vac
115 Vac
230 Vac
264 Vac
15VdcOutputEfciencyCurve
(at25°C)
55.0
60.0
65.0
70.0
75.0
80.0
85.0
Efficiency (%)
10
20 30 40 50 60 70 80 90 100
85 Vac
115 Vac
230 Vac
264 Vac
24VdcOutputEfciencyCurve
(at25°C)
55.0
60.0
65.0
70.0
75.0
80.0
85.0
Efficiency (%)
90.0
10
20 30 40 50 60 70 80 90 100
85 Vac
115 Vac
230 Vac
264 Vac
48VdcOutputEfciencyCurve
(at25°C)
55.0
60.0
65.0
70.0
75.0
80.0
85.0
Efficiency (%)
90.0
10
20 30 40 50 60 70 80 90 100
85 Vac
115 Vac
230 Vac
264 Vac
For more information, please visit the product page.