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date 01/08/2019
page 1 of 5
SERIES: PSK-20B │ DESCRIPTION: AC-DC POWER SUPPLY
MODEL output
voltage
output
current
output
power
ripple
and noise1
eciency
(Vdc)
max
(A)
max
(W)
typ
(mVp-p)
typ
(%)
PSK-20B-S5 5 3.5 17.5 100 82.85
PSK-20B-S9 9 2.1 18.9 100 85.70
PSK-20B-S12 12 1.6 19.2 120 85.77
PSK-20B-S15 15 1.3 19.5 150 85.85
PSK-20B-S24 24 0.85 20.4 240 86.06
PSK-20B-S48 48 0.42 20 480 86.00
Notes: 1.Atfullload,nominalinput,20MHzbandwidthoscilloscope,outputterminatedwith10μFelectrolyticand0.1μFceramiccapacitors.
2.AllspecicationsaremeasuredatTa=25°C,nominalinputvoltage,and75%ratedoutputloadunlessotherwisespecied.
FEATURES
• up to 20 W continuous power
•universalinput:85~264Vac
•compactencapsulateddesign
•singleoutputfrom5Vdc~48Vdc
•shortcircuit,overvoltageprotection,overcurrentprotection
• 4000 Vac isolation
• no load power consumption <100 mW
PART NUMBER KEY
Base Number
PSK-20B - SXX
OutputVoltage
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date 01/08/2019 │ page 2 of 5CUI Inc │ SERIES: PSK-20B │ DESCRIPTION: AC-DC POWER SUPPLY
INPUT
parameter conditions/description min typ max units
voltage 85
120
264
370
Vac
Vdc
frequency 47 63 Hz
current 0.5 A
inrush current at240Vac,25°C,coldstart 70 A
leakagecurrent 0.25 mA
no load power consumption 0.10 W
OUTPUT
parameter conditions/description min typ max units
capacitiveload
5 Vdc output model
9 Vdc output model
12 Vdc output model
15 Vdc output model
24 Vdc output model
48 Vdc output model
3,500
2,100
1,600
1,300
850
420
μF
μF
μF
μF
μF
μF
initialsetpointaccuracy atfullload,25°C ±2 %
lineregulation highlinetolowlineatfullload ±0.5 %
loadregulation 10%~100%load ±1 %
hold-up time at 115 Vac 12 ms
switchingfrequency 65 kHz
temperaturecoecient ±0.05 %/°C
PROTECTIONS
parameter conditions/description min typ max units
overvoltageprotection hiccup,autorecovery
overcurrentprotection 110 %
short circuit protection hiccup,autorecovery
SAFETY & COMPLIANCE
parameter conditions/description min typ max units
isolationvoltage input to output 4,000 Vac
safetyapprovals IEC62368-1/60950-1,UL62368-1/60950-1
safetyclass class II
EMI/EMC
EN55032ClassB,FCCPart15ClassB,EN61000-
6-3, EN 61000-3-2, EN 61000-3-3, EN 55024,
EN 61204-3, EN 61000-6-1
MTBF asperMIL-STD-217F,at115Vac,25°C,GB 300,000 hours
life time at40°C,75%load 3years
RoHS yes
ENVIRONMENTAL
parameter conditions/description min typ max units
operatingtemperature seederatingcurve -25 70 °C
storagetemperature -40 85 °C
operatinghumidity non-condensing 93 %
operatingaltitude 5000 m
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date 01/08/2019 │ page 3 of 5CUI Inc │ SERIES: PSK-20B │ DESCRIPTION: AC-DC POWER SUPPLY
SOLDERABILITY
parameter conditions/description min typ max units
wavesoldering seewavesolderingprole 260 °C
Temperature (°C)
Time (Seconds)
Notes: 1.Solderingmaterials:Sn/Cu/Ni
2.Rampuprateduringpreheat:1.4°C/s(from50°Cto100°C)
3.Soakingtemperature:0.5°C/s(from100°Cto130°C),60±20seconds
4.Peaktemperature:260°C,above250°Cfor3~6seconds
5.Rampdownrateduringcooling:-10°C/s(from260°Cto150°C)
MECHANICAL
parameter conditions/description min typ max units
dimensions 2.440 x 1.770 x 0.909 (61.98 x 44.96 x 23.09 mm) inch
weight 106 g
cooling naturalconvection
MECHANICAL DRAWING
PINCONNECTIONS
PIN Function
1ACN
2ACL
3 -Vout
4 +Vout
22.48
61.982.440
2.126
44.961.770
17.500.689
20.000.787
54.00
0.885
0.49112.48
3
4
1
2
1.00
23.090.909
0.039
0.2366.00
units: inch [mm]
tolerance:X.XXX=±0.020[±0.50]
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date 01/08/2019 │ page 4 of 5CUI Inc │ SERIES: PSK-20B │ DESCRIPTION: AC-DC POWER SUPPLY
DERATING CURVE
OutputPowervs.AmbientTemperature
(NaturalConvection)
Ambient Temperature (°C)
Load (%)
-25
50
75
100
25
-15 15 45 65
-5 525355575
0
0
EFFICIENCY CURVES
5VdcOutputEciencyCurve
(at25°C)
55.0
60.0
65.0
70.0
75.0
80.0
85.0
Efficiency (%)
90.0
10
Current Load (%)
20 30 40 50 60 70 80 90 100
85 Vac
115 Vac
230 Vac
264 Vac
9VdcOutputEciencyCurve
(at25°C)
55.0
60.0
65.0
70.0
75.0
80.0
85.0
Efficiency (%)
90.0
10
Current Load (%)
20 30 40 50 60 70 80 90 100
85 Vac
115 Vac
230 Vac
264 Vac
12VdcOutputEciencyCurve
(at25°C)
55.0
60.0
65.0
70.0
75.0
80.0
85.0
Efficiency (%)
90.0
10
Current Load (%)
20 30 40 50 60 70 80 90 100
85 Vac
115 Vac
230 Vac
264 Vac
15VdcOutputEciencyCurve
(at25°C)
55.0
60.0
65.0
70.0
75.0
80.0
85.0
Efficiency (%)
90.0
10
Current Load (%)
20 30 40 50 60 70 80 90 100
85 Vac
115 Vac
230 Vac
264 Vac
24VdcOutputEciencyCurve
(at25°C)
55.0
60.0
65.0
70.0
75.0
80.0
85.0
Efficiency (%)
95.0
90.0
10
Current Load (%)
20 30 40 50 60 70 80 90 100
85 Vac
115 Vac
230 Vac
264 Vac
48VdcOutputEciencyCurve
(at25°C)
55.0
60.0
65.0
70.0
75.0
80.0
85.0
Efficiency (%)
95.0
90.0
10
Current Load (%)
20 30 40 50 60 70 80 90 100
85 Vac
115 Vac
230 Vac
264 Vac
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date 01/08/2019 │ page 5 of 5CUI Inc │ SERIES: PSK-20B │ DESCRIPTION: AC-DC POWER SUPPLY
CUIoersatwo(2)yearlimitedwarranty.Completewarrantyinformationislistedonourwebsite.
CUIreservestherighttomakechangestotheproductatanytimewithoutnotice.InformationprovidedbyCUIisbelievedtobeaccurateandreliable.However,noresponsibilityis
assumedbyCUIforitsuse,norforanyinfringementsofpatentsorotherrightsofthirdpartieswhichmayresultfromitsuse.
CUIproductsarenotauthorizedorwarrantedforuseascriticalcomponentsinequipmentthatrequiresanextremelyhighlevelofreliability.Acriticalcomponentisanycomponentofa
lifesupportdeviceorsystemwhosefailuretoperformcanbereasonablyexpectedtocausethefailureofthelifesupportdeviceorsystem,ortoaectitssafetyoreectiveness.
Headquarters
20050SW112thAve.
Tualatin,OR97062
800.275.4899
Fax503.612.2383
cui.com
techsupport@cui.com
rev. description date
1.0 initial release 02/23/2017
1.01 increasedoperatingaltitude 02/06/2018
1.02 updated datasheet 01/08/2019
Therevisionhistoryprovidedisforinformationalpurposesonlyandisbelievedtobeaccurate.
REVISION HISTORY
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