DVMSA28 SeriesHIGH RELIABILITY HYBRID EMI FILTERS DESCRIPTION The DVMSA28 series of hybrid EMI filters is operable over the full military (-55 °C to +125 °C) temperature range with no power derating. The DVMSA28 EMI filter is designed to filter conducted emissions of DVSA series DC-DC converters. These filters are designed and manufactured in a facility qualified to ISO9001 and certified to MIL-PRF-38534 and MIL-STD-883. 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 FEATURES • High Reliability • Wide Input Voltage Range: 0 to 50 Volts per MIL-STD-704 • Up to 0.8 Amp Maximum Current • 40 dB Minimum Attenuation at 500 kHz • Industry Standard Pinout • High Input Transient Voltage: 80 Volts for 1 sec per MIL-STD-704A • Precision Projection Welded Hermetic Package • Custom Versions Available • Additional Environmental Screening Available • Meets MIL-STD-461C and MIL-STD-461D EMC Requirements • Protects Against Conducted Susceptibility Specified in MIL-STD-461C, CS01 and CS02 • MIL-PRF-38534 Element Evaluated 11314 4th Avenue Sales Information: West, Suite 206 Phone: (425) 353-3010 http://www.vptpower.com E-mail: [email protected]

DVMSA28 Series SPECIFICATIONS (Tcase = -55°C to +125°C, Vin = +28V ± 5%, Full Load, Unless Otherwise Specified) Notes: 1. Derate linearly to 0 at 135°C. 2. Verified by initial electrical design verification. Post design verification, parameter shall be guaranteed to the limits specified. 3. Rated current applies at any voltage. 4. Correction factor of 0.12 added to ceramic capacitors. BLOCK DIAGRAM

DVMSA28 Series CONNECTION DIAGRAM DMS28 EMI FILTER 1 Figure 3 - DVMSA28 EMI Filter Hookup with Single Converter (Tcase = 25°C, Vin = +28V ± 5%, Full Load, Unless Otherwise Specified) MIL-STD-4S1C CE03 Em ission Level (dB ^A) N arrowband Emission Level (dBpA) Figure 5 - MIL-STD-461C DVSA2800D With DVMSA28 EMI Filter

DVMSA28 Series EMI MEASUREMENT METHODS CONNECTION DIAGRAMS Figure 6 – MIL-STD-461C Measurement Method (Feedthrough Capacitor) Figure 7 – MIL-STD-461D Measurement Method (LISN)

Figure 8 - Package and Pinout

ENVIRONMENTAL SCREENING (100% Tested Per MIL-STD-883 as referenced to MIL-PRF-38534) Test 1. Contact Sales for more information concerning additional environmental screening and testing options desired. 2. VPT Inc. reserves the right to ship higher screened or SMD products to meet lower screened orders at our sole discretion unless specifically forbidden by customer contract. 3. 100% R&R testing with all test data included in product shipment. 4. Non-QML products may not meet all requirements of MIL-PRF-38534. 5. PIND test Certificate of Compliance included in product shipment. 6. Radiographic...

ORDERING INFORMATION DVMSA 1. Contact the VPT Inc. Sales Department for availability of Class H (/H) or Class K (/K) qualified products. 2. VPT Inc. reserves the right to ship higher screened or SMD products to meet lower screened orders at our sole discretion unless specifically forbidden by customer contract. 3. -KL1 products are identical in every way with Class K products in compliance with MIL-PRF-38534 revision L and later revisions except they contain elements evaluated to the requirements of MIL-PRF-38534 revision K and previous revisions. These devices are not marked with an SMD number...

DVMSA28 SeriesSMD (STANDARD MICROCIRCUIT DRAWING) NUMBERS Standard Microcircuit Drawing (SMD) Do not use the DVMSA28 Series similar part number for DLA Land and Maritime Drawing (Previously known as DSCC Drawing) product acquisition. It is listed for reference only. For exact specifications for the DLA Land and Maritime Drawing product, refer to the DLA Land and Maritime Drawing. DLA Land and Maritime Drawings can be downloaded from the DLA Land and Maritime website at https://landandmaritimeapps.dla.mil/programs/defaultapps.asp. The DLA Land and Maritime Drawing number listed above is for MIL-PRF-38534...