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SERIES: PSK-20B │ DESCRIPTION: AC-DC POWER SUPPLY
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
date 01/08/2019 page 1 of 5
MODEL
output voltage
(Vdc)
output current
max (A)
output power
max (W)
ripple and noise1
typ (mVp-p)
PSK-20B-S5
5 3.5 17.5 100
PSK-20B-S9
9 2.1 18.9 100
PSK-20B-S12
12 1.6 19.2 120
PSK-20B-S15
15 1.3 19.5 150
PSK-20B-S24
24
0.85
20.4
240
PSK-20B-S48
48 0.42 20 480
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 specifications are measured at Ta=25°C, nominal input voltage, and 75% rated output load unless otherwise specified.
PART NUMBER KEY
PSK-20B - SXX
Base Number
Output Voltage
efficiency
typ (%) 82.85 85.70 85.77 85.85 86.06 86.00
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date 01/08/2019 │ page 2 of 5
INPUT
parameter
conditions/description
voltage
frequency
current inrush current
at 240 Vac, 25°C, cold start
leakage current
no load power consumption
OUTPUT
parameter capacitive load
conditions/description
5 Vdc output model 9 Vdc output model 12 Vdc output model 15 Vdc output model 24 Vdc output model 48 Vdc output model
initial set point accuracy
at full load, 25°C
line regulation load regulation hold-up time
high line to low line at full load 10%~100% load at 115 Vac
switching frequency
temperature coefficient
PROTECTIONS
parameter over voltage protection
conditions/description hiccup, auto recovery
over current protection
short circuit protection
hiccup, auto recovery
SAFETY & COMPLIANCE
parameter
conditions/description
isolation voltage
input to output
safety approvals safety class
EMI/EMC
IEC62368-1/60950-1, UL62368-1/60950-1
class II
EN 55032 Class B, FCC Part 15 Class B, EN 610006-3, 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
life time RoHS
at 40°C, 75% load yes
ENVIRONMENTAL
parameter
conditions/description
operating temperature
see derating curve
storage temperature operating humidity
non-condensing
operating altitude
min 85 120 47
min
min 110 min
300,000 3
min -25 -40
typ
typ
±2 ±0.5 ±1
12 65 ±0.05 typ
typ 4,000
typ 5000
max 264 370 63 0.5 70 0.25 0.10
max 3,500 2,100 1,600 1,300 850 420
max
max
max 70 85 93
units Vac Vdc Hz A A mA W
units μF μF μF μF μF μF % % % ms kHz
%/°C
units
%
units Vac
hours years
units °C °C % m
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SOLDERABILITY
parameter wave soldering
conditions/description see wave soldering profile
min
date 01/08/2019 │ page 3 of 5
typ
max
units
260 °C
Temperature (°C)
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
dimensions
2.440 x 1.770 x 0.909 (61.98 x 44.96 x 23.09 mm)
weight
cooling
natural convection
MECHANICAL DRAWING
units: inch [mm] tolerance: X.XXX = ±0.020 [±0.50]
min
Time (Seconds)
typ 106
max
0.236 6.00 0.909 23.09
PIN CONNECTIONS PIN Function 1 ACN 2 ACL 3 -Vout 4 +Vout
0.039 1.00
units inch
g
0.491 12.48 0.787 20.00
1.770 44.96 0.885 22.48 0.689 17.50
2 1
2.126 54.00 2.440 61.98 cui.com
4 3
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date 01/08/2019 │ page 4 of 5
DERATING CURVE
Output Power vs. Ambient Temperature (Natural Convection)
100
75
50
Load (%)
EFFICIENCY CURVES
25
0 -25 -15 -5 0 5 15 25 35 45 55 65 75
Ambient Temperature (°C)
Efficiency (%)
90.0 85.0 80.0 75.0 70.0 65.0 60.0 55.0
10
5 Vdc Output Efficiency Curve (at 25°C)
85 Vac 115 Vac 230 Vac 264 Vac
20 30 40 50 60 70 80 90 100
Current Load (%)
Efficiency (%)
90.0 85.0 80.0
75.0 70.0 65.0
60.0 55.0
10
9 Vdc Output Efficiency Curve (at 25°C)
85 Vac 115 Vac 230 Vac 264 Vac
20 30 40 50 60 70 80 90 100
Current Load (%)
Efficiency (%)
90.0 85.0 80.0
75.0 70.0 65.0
60.0 55.0
10
12 Vdc Output Efficiency Curve (at 25°C)
85 Vac 115 Vac 230 Vac 264 Vac
20 30 40 50 60 70 80 90 100
Current Load (%)
95.0 90.0 85.0 80.0
75.0
70.0 65.0
60.0 55.0
10
24 Vdc Output Efficiency Curve (at 25°C)
85 Vac 115 Vac 230 Vac 264 Vac 20 30 40 50 60 70 80 90 100
Current Load (%)
Efficiency (%)
Efficiency (%)
90.0 85.0.