Data Sheet

AC/DC 35W Enclosed Switching Power Supply
LM35-20Bxx, LM35-20Bxx-C, LM35-20Bxx-Q Series
2020.05.08-A/5 Page 2 of 4
MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation
Minimum Load
0
--
--
%
Stand-by Power Consumption
--
--
0.3
W
Hold-up Time
115VAC
8
--
--
ms
230VAC
30
--
--
Short Circuit Protection
Recovery time <5s after the short circuit disappear.
Hiccup, continuous, self-recovery
Over-current Protection
110%-200% Io, self-recovery
Over-voltage Protection
5V
≤
6.3VDC (Output voltage clamp or hiccup)
12V
≤ 16.2VDC (Output voltage clamp or hiccup)
15V
≤ 21.75VDC (Output voltage clamp or hiccup)
24V
≤
33.6VDC (Output voltage clamp or hiccup)
Note：*The “Tip and barrel method” is used for ripple and noise test, output parallel 47uF electrolytic capacitor and 0.1uF ceramic capacitor, please refer to
Enclosed Switching Power Supply Application Notes for specific information.
General Specifications
Item
Operating Conditions
Min.
Typ.
Max.
Unit
Isolation
Input -
Electric strength test for 1min., leakage current <10mA
2000
--
--
VAC
Input-output
4000
--
--
Output -
1250
--
--
Insulation
Resistance
Input -
At 500VDC
100
--
--
MΩ
Input - output
100
--
--
Output -
100
--
--
Operating Temperature
-30
--
+70
℃
Storage Temperature
-40
--
+85
Storage Humidity
Non-condensing
--
--
95
%RH
Operating Humidity
Non-condensing
20
--
90
Switching Frequency
--
65
--
kHz
Power Derating
Operating
temperature derating
-30
℃
to -25
℃
85VAC-100V
AC
5
--
--
%/℃
+50
℃
to +70
℃
2
--
--
Input voltage derating
85VAC - 100VAC
1.33
--
--
%/VAC
Safety Standard
IEC/EN/UL62368/IEC/EN60335/GB4943/IEC/
EN61558
Safety Certification
IEC/EN/UL62368/IEC/EN60335/GB4943/IEC/
EN61558
Safety Class
CLASS I
MTBF
MIL-HDBK-217F@25
℃
＞
300,000 h
Mechanical Specifications
Case Material
Metal (AL1100, SGCC)
Dimension
99.00 x 82.00 x 30.00 mm
Weight
170g (Typ.)
Cooling Method
Free air convection
Electromagnetic Compatibility (EMC)
Emissions
CE
CISPR32/EN55032 CLASS B
RE
CISPR32/EN55032 CLASS B
Harmonic current
IEC/EN61000-3-2 CLASS A
Immunity
ESD
IEC/EN 61000-4-2 Contact ±6KV /Air ±8KV
Perf. Criteria A
RS
IEC/EN 61000-4-3 10V/m
perf. Criteria A
EFT
IEC/EN 61000-4-4 ±2KV
perf. Criteria A
Surge
IEC/EN 61000-4-5 line to line ±2KV/line to ground ±4KV
perf. Criteria A
CS
IEC/EN61000-4-6 10 Vr.m.s
perf. Criteria A
Voltage dip, short interruption and
voltage variation
IEC/EN61000-4-11 0%, 70%
perf. Criteria B