![](http://datasheet.mmic.net.cn/120000/TWR-5-1000-15-200-D48A_datasheet_3441296/TWR-5-1000-15-200-D48A_4.png)
If you’re designing with EMC in mind, please note that all of
DATEL’s TWR 8-11 Watt A-Series DC/DC Converters have been
characterized for radiated and conducted emissions in our new EMI/
EMC laboratory. Testing is conducted in an EMCO 5305 GTEM test
cell utilizing EMCO automated EMC test software. Radiated emis-
sions are tested to the limits of FCC Part 15, Class B and CISPR 22
(EN 55022), Class B. Correlation to other specifications can be sup-
plied upon request. Radiated emissions plots to FCC and CISPR 22
for model TWR-5/1000-12/125-D5A appear below. Published EMC
test reports are available for each model number. Contact DATEL’s
Applications Engineering Department for more details.
+INPUT
–INPUT
+12/15V
1
2
4
6
COMMON
7
CIN
COUT
+
5
+
COUT
+5V
–12/15V
Figure 2. Using External Capacitors
to Reduce Input/Output Ripple/Noise
Input Fusing
Certain applications and/or safety agencies may require the instal-
lation of fuses at the inputs of power conversion components. For
DATEL A-Series TWR 8-11 Watt DC/DC Converters, you should use
slow-blow type fuses with values no greater than 3A.
80
70
60
50
40
30
20
10
0
–10
–20
Frequency (MHz)
100
1000
FCC Class B Limit
TWR-5/1000-12/125-D5A Radiated Emissions
FCC Part 15 Class B, 3 Meters
Converter Output = +5Vdc @ 950mA and ±12Vdc @ ±114mA
R
a
di
ated
Emi
s
sions
(d
BμV/
M
)
Radiated Emissions
TWR-5/1000-12/125-D5A Radiated Emissions
EN 55022 Class B, 10 Meters
Converter Output = +5Vdc @ 950mA and ±12Vdc @ ±114mA
80
70
60
50
40
30
20
10
0
–10
–20
Frequency (MHz)
100
1000
Radiated Emissions
EN 55022 Class B Limit
R
a
di
ated
Emi
s
sions
(d
BμV/
M
)
DATEL’s world-class design, development and manufacturing team
stands ready to work with you to deliver the exact power converter
you need for your demanding, large volume, OEM applications.
And ... we’ll do it on time and within budget!
Our experienced applications and design staffs; quick-turn prototype
capability; highly automated, SMT assembly facilities; and in-line
SPC quality-control techniques combine to give us the unique ability
to design and deliver any quantity of power converters to the highest
standards of quality and reliability.
We have compiled a large library of DC/DC designs that are cur-
rently used in a variety of telecom, medical, computer, railway,
aerospace and industrial applications. We may already have the
converter you need.
Contact us. Our goal is to provide you the highest-quality, most cost-
effective power converters available.
EMI RADIATED EMISSIONS
CUSTOM CAPABILITIES
Quality and Reliability
The A-Series are the first DC/DC Converters to emerge from DATEL’s new,
company-wide approach to designing and manufacturing the most reliable
power converters available. The five-pronged program draws our Quality
Assurance function into all aspects of new-product design, development,
characterization, qualification and manufacturing.
TWR Models
High-Reliability, 2" x 1", 8-11 W, Triple Output DC/DC Converters
Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000
www.murata-ps.com
MDC_TWR8-11W.B01 Page 4 of 5