DV-704A Series
HIGH RELIABILITY HYBRID
EMI FILTERS
DESCRIPTION
FEATURES
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High Reliability
The DV-704A is a combined hybrid EMI filter and
voltage spike protection module that is operable over
the full military (-55 °C to +125 °C) temperature
range with no power derating. The DV-704A EMI
filter is designed to be used with VPT/Delta’s DVSA,
DVHF, DVTR, and DVFL series DC-DC converters to
comply with the surge requirements of MIL-STD-
704A, B, C, and D with 40 watts maximum output
power. This device also reduces the reflected noise
of the DC-DC converters to meet MIL-STD-461C
CE03 and MIL-STD-461D CE102 limits. It also
protects the DC-DC converters against the voltage
spikes specified in MIL-STD-461C CS06 and
conducted susceptibility in MIL-STD-461C CS01 and
CS02.
Up to 2.0 Amps Maximum Current
45 dB Minimum Attenuation at 500 kHz
Industry Standard Pinout
Inrush Current Limit and Soft Start
Under Voltage Lockout
Clamps Output Voltage to 45 Volts Maximum
Precision Seam Welded Hermetic Package
Custom Versions Available
Additional Environmental Screening Available
Meets MIL-STD-704A, B, C, and D Surge Limits
Compliant to MIL-STD-461C CE03 and MIL-
STD-461D CE102 EMC Requirements
Protects Against Conducted Susceptibility
Specified in MIL-STD-461C, CS01 and CS02
and Against Voltage Spikes Specified in MIL-
STD-461C CS06
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These filters are designed and manufactured in a
facility qualified to ISO9001 and certified to MIL-
PRF-38534 and MIL-STD-883.
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MIL-PRF-38534 Element Evaluated
Components
This product may incorporate one or more of the
following U.S. patents:
5,784,266
5,790,389
5,963,438
5,999,433
6,005,780
6,084,792
6,118,673
Figure 1 – DV-704A EMI Filter
(Exact marking may differ from that shown)
Sales Information:
Phone: (425) 353-3010
Fax: (425) 353-4030
E-mail: vptsales@vpt-inc.com
DV-704A-5.0
http://www.vpt-inc.com
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