20DMW_1.5 Series
20W - Single/Dual Output - Ultra Wide Input - Isolated & Regulated
DC-DC Converter
DC-DC Converter
20 Watt
The 20DMW_S & 20DMW_D series are isolated 20W DC/DC converters.
Designed with high efficiency, they allow the operating temperature ran-
ge of these units to be -40°C to +85°C (with derating) in a 6 pin DIP
package with industry-standard footprint. Further features include wide
2 : 1 input voltage range, remote on/off control, trimmable output, short-
circuit protection and over voltage protection.
Wide 2:1 input voltage range
High efficiency up to 90%
Remote On/Off
Input/output isolation voltage:
1.5K Vdc
Short circuit protection (SCP)
RoHS compliant
Operating temperature range:
-40°C to +85°C
Over voltage protection:
clamp mode
Shielded metal case with
insulated baseplate
20W DIL PACKAGE
These converters are well suitable for battery operated equipment, mea-
surement equipment, telecom, wireless network, Industry control sys-
tem, everywhere where isolated, tightly regulated voltages and compact
size are required.
Standard 1”x1” package
Customer design available
Common specifications
Short circuit protection:
Cooling:
Input specifications
Hiccup, continuous, automatic recovery
Free air convection
-40°C~+85°C
Item
Test condition
Min
Typ
Max
Units
Input surge voltage
(100ms max.)
• 12V
• 24V
• 48V
25
50
100
V
V
V
Operation temperature range:
Storage temperature range:
Maximum case temperature:
Soldering temperature:
Switching frequency:
Storage humidity range:
Safety standards:
-55°C~+125°C
Start-up voltage
• 12V
• 24V
• 48V
8.7
16.9
33
9
18
36
VDC
VDC
VDC
100°C MAX
265°C MAX for 10 sec.
330kHz TYP
Under voltage
shutdown
• 12V
• 24V
• 48V
8.3
16.2
30.5
9
18
36
VDC
VDC
VDC
95% MAX
Input filter
LC network
EN 60950-1, IEC 60950-1
MIL-STD-810E
Input reflected ripple
current
Nominal Vin and full
load
30
mA
Vibration and thermal shock:
Case material:
Nickel-coated copper (six-sided)
Non-conductive black FR4
Epoxy (UL94V-0)
Remote ON/OFF
• Converter: ON
• Converter: OFF
3.0 ~ 15 VDC or open circuit
0 ~ 1.2 VDC or short circuit
pin 6 and pin 2
Base material:
Potting material:
• Off idle current
EN 55022 level A
2.5
mA
EMI (Conducted &
radiation)
MTBF (MIL-HDBK-217F @25°C):
Weight:
340,000 hours
16.5g
Protection
Fuse recommended
Output specifications
Isolation specifications
Item
Item
Test condition
Min
Typ
Max
2
Units
%
Test condition
Input to output
Test at 500VDC
Min
Typ
Max
Units
Voltage tolerance
Line regulation
Load regulation
Isolation voltage
Isolation resistance
Isolation capacitance
1500 VDC
Vmin to Vmax
0.5
%
1000
Ω
• 25% -100% (single)
• Balanced load (dual)
0.5
1.0
%
%
1000
pF
Load variation
Unbalanced load 25%
to 100% full load
5
%
Model selection:
WCTV_xxyyN##
Minimum load
required
Vout
10
%
W= Watt; C=Case; T= Type; V= Voltage Variation (omitted 10%);
xx= Vin; yy= Vout; N= Numbers of Output; ##= Isolation (kVDC)
Temperature drift
0.05
%/°C
mVp-p
ms
Ripple and noise* 20MHz Bandwidth
100
Example:
20DMW_2415S1.5
20=20Watt; D= DIP; M=series; W= wide input (2:1) 18-36Vin;
15Vout; S= single output; 1.5= 1500VDC
Start up time
nominal Vin and
constant resistive load
450
300
Transient response 25% load step change
setting time
µs
%
Over load
protection
% of full load at
nominal input
110
Note:
1. Only typical model listed. Non-standard models will be different from the above,
please contact us for more details.
2. All specifications are measured at TA=25°C, humidity<75%, nominal input
voltage and rated output load unless otherwise specified.
3. In this datasheet, all the test methods of indications are based on corporate
standards.
Over voltage
protection
• 3.3VDC
• 5VDC
• 12VDC
• 15VDC
3.7
5.6
13.5
16.8
5.4
7
19.6
20.5
%
%
%
%
Output current
limitation
at 150 % of Iout max.,
constant current
* Ripple & Noise measurement bandwidth is 20 MHz, measured with a 1uF M/C
and a 10uF T/C.
Page 1 of 3
20DMW_1.5 – Rev. 2016-1.1
GAPTEC-Electronic GmbH & Co. KG
sales@gaptec-electronic.com – www.gaptec-electronic.com
Specifications subject to change without notice.
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