Comply to EN55032 radiated Class A without additional
components
High efficiency up to 89%
Protections: Short circuit (Continuous) / Overload /
Over voltage / Input under voltage
1.5KVDC I/O isolation
Remote ON/OFF control and Triming output (
±
10%)
3 years warranty
■
Applications
Telecom
/
datacom system
Wireless network
Industrial control facility
Instrument
Analyzer
Detector
Data switch
■
Description
SKMW20 and DKMW20 series are 20W isolated and regulated module type DC-DC converter with DIP 1"x1"
package. It features international standard pins, a high efficiency up to 89%, wide working temperature
range -40~+85
℃
, 1.5KVDC I/P-O/P isolation voltage, compliance to EN55032 radiated Class A without
additional components , continuous-mode short circuit, overload , over temperature , input under
voltage protection, remote ON/OFF and trimmable output voltage etc. The models account for different
input voltage
9~36V and 18~75V 4:1 ultrawide input range,
and various output voltage, 3 . 3V /5V/12V/
15V for single output and ±12V/±15V for dual outputs, which are suitable for all kinds of systems,
s
uch
as industrial control, telecommunication field, distributed power architecture, and so on.
■
Model Encoding
S KMW20 F - 12
Output voltage (3.3/5/12/15Vdc
，
±12/±15Vdc)
Input voltage (F: 9~36Vdc
，
G: 18~75Vdc)
Rated wattage
Series name
{
S:Single output
D:Dual output
File Name:SKMW20,DKMW20-SPEC 2017-03-06
20W 1"x1" Package DC-DC Regulated Converter
SKMW20 & DKMW20
series
OUTPUT
MODEL SELECTION TABLE
INPUT
ORDER NO.
INPUT VOLTAGE
(RANGE)
INPUT CURRENT
NO LOAD
10mA
FULL LOAD
781mA
OUTPUT
VOLTAGE
OUTPUT
CURRENT
EFFICIENCY
(TYP.)
CAPACITOR LOAD
(MAX.)
SKMW20F-03
3.3V
0~4500mA
87%
5000
μ
F
SKMW20F-05
10mA
926mA
5V
0~4000mA
89%
4000
μ
F
SKMW20F-12
24V
(9 ~ 36V)
10mA
936mA
12V
0~1670mA
88%
1650
μ
F
SKMW20F-15
10mA
936mA
15V
0~1330mA
88%
1300
μ
F
DKMW20F-12
10mA
936mA
±
12V
±
0 ~ 830mA
87%
*800
μ
F
DKMW20F-15
10mA
936mA
±
15V
±
0 ~660mA
87%
*650
μ
F
SKMW20G-03
8mA
390mA
3.3V
0~4500mA
87%
5000
μ
F
SKMW20G-05
8mA
463mA
5V
0~4000mA
87%
4000
μ
F
SKMW20G-12
48V
(18 ~ 75V)
8mA
463mA
12V
0~1670mA
89%
1650
μ
F
SKMW20G-15
8mA
468mA
15V
0~1330mA
88%
1300
μ
F
DKMW20G-12
8mA
473mA
±
12V
±
0 ~ 830mA
87%
*800
μ
F
DKMW20G-15
8mA
468mA
±
15V
±
0 ~660mA
88%
*650
μ
F
* For each output
File Name:SKMW20,DKMW20-SPEC 2017-03-06
20W 1"x1" Package DC-DC Regulated Converter
SKMW20 & DKMW20
series
SPECIFICATION
VOLTAGE RANGE
FILTER
PROTECTION
VOLTAGE ACCURACY
RATED POWER
RIPPLE & NOISE
OUTPUT
F: 9~36Vdc , G: 18~75Vdc
Pi type
Fuse recommended. 24Vin models: 3A delay time Type, 48Vin models: 1.5A delay time Type
±1.5%
20W
Note.2
3.3/5Vout models: 75mVp-p, other models:100mVp-p
SURGE VOLTAGE (100ms max.)
24Vin models : 50Vdc, 48Vin models : 100Vdc
INPUT
INTERNAL POWER DISSIPATION
500mW
LINE REGULATION
Note.3
±0.2%
LOAD REGULATION
Note.4
Single output models:
±
0.2%, Dual output models:
±
1%
SWITCHING FREQUENCY
(Typ.)
3.3/5Vout models: 270KHz, other models: 330KHz
EXTERNAL TRIM ADJ. RANGE
(Typ.)
±10%
(Single output model only)
SHORT CIRCUIT
OVERLOAD
Protection type : Continuous, automatic recovery
110 ~ 170% rated output power
Protection type : Recovers automatically after fault condition is removed
Protection type : Clamp by diode
Start-up voltage
Shutdown voltage
Free-air convection
-40 ~ +85℃ (Refer to "Derating Curve")
+105
℃
max.
20% ~ 90% RH non-condensing
0.03% /
℃
(0 ~ 60
℃
)
10 ~ 500Hz, 2G 10min./1cycle, period for 60min. each along X, Y, Z axes
I/P-O/P:1.5KVDC
24Vin (F-type): 8.8Vdc, 48Vin (G-type): 17Vdc
24Vin (F-type): 8Vdc,
48Vin (G-type): 16Vdc
PROTECTION
OVER VOLTAGE
UNDER VOLTAGE LOCKOUT
FUNCTION
REMOTE CONTROL
COOLING
WORKING TEMP.
CASE TEMPERATURE
WORKING HUMIDITY
Power ON: R.C. ~ -Vin >3.5~75Vdc or open circuit ; Power OFF: R.C. ~ -Vin <1.2Vdc or short
ENVIRONMENT
STORAGE TEMP., HUMIDITY
-55 ~ +1 25
℃
, 10 ~ 95% RH non-condensing
TEMP. COEFFICIENT
VIBRATION
WITHSTAND VOLTAGE
SOLDERING TEMPERATURE
1.5mm from case of 1 ~ 3sec./260
℃
max.
ISOLATION RESISTANCE
I/P-O/P:100M Ohms / 500VDC / 25
℃
/ 70% RH
ISOLATION CAPACITANCE
(Typ.)
1500pF
Parameter
EMC EMISSION
SAFETY &
EMC
(
Note.
5)
EMC IMMUNITY
Conducted
Radiated
Parameter
ESD
Radiated Susceptibility
EFT/Burest
Surge
Conducted
Magnetic Field
MTBF
DIMENSION (L*W*H)
OTHERS
CASE MATERIAL
PACKING
NOTE
25.4*25.4*10.2mm (1*1*0.4 inch)
Black coated copper with non-conductive base
18g
Standard
EN55032(CISPR32)
EN55032(CISPR32)
Standard
EN61000-4-2
EN61000-4-3
EN61000-4-4
EN61000-4-5
EN61000-4-6
EN61000-4-8
Test Level / Note
N/A
Class A
Test Level / Note
Level 2,
±
8KV air,
±
4KV contact
Level 2, 3V/m
Level 1, 0.5KV
Level 1, 0.5KV Line-Line
Level 2, 3V(e.m.f.)
Level 2, 3A/m
3.3/5Vout models: 910Khrs, Other models: 1220Khrs MIL-HDBK-217F(25
℃
)
1.All parameters are specified at normal input(F:24Vdc, G:48Vdc), rated load, 25
℃
70% RH ambient.
2.Ripple & noise are measured at 20MHz by using a 12" twisted pair terminated with a 0.1
μ
f & 47
μ
f capacitor.
3.Line regulation is measured from low line to high line at rated load.
4.Load regulation is measured from 0% to 100% rated load.
5.The final equipment must be re-confirm that it still meet EMC directives. For guidance on how to perform these EMC tests, please
refer to EMI testing of component power supplies.(as available on http://www.meanwell.com)
File Name:SKMW20,DKMW20-SPEC 2017-03-06
20W 1"x1" Package DC-DC Regulated Converter
SKMW20 & DKMW20
series
External Output Trimming
In order to trim the voltage up or down one needs to connect the trim resistor either between the trim pin and -Vo for trim-up and between trim pin and
+Vo for trim-down. The output voltage trim range is
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