MPT Power Your Critical Mission Today SVRMH28 Series SPACE QUALIFIED HYBRID EMI FILTERS Models Available Input: 28 V nominal Qualified to MIL-PRF-38534 Class H and Class K 1.0 DESCRIPTION The SVRMH is specifically designed for use with the SVR Series of DC-DC converters in the harsh radiation environment of space applications. The SCRMH design is fully passive, giving a strong resistance to radiation degradation, and is designed in accordance with Aerospace TOR requirements. Product performance is guaranteed through extensive circuit worst-case analysis. The SVRMH Series of EMI filters is suited for use in low Earth orbit (LEO), medium Earth orbit (MEO), geostationary orbit (GEO), deep space, and launch vehicle programs. 1.1 FEATURES • Up to 2 A maximum current • High reliability • Wide input voltage range: 0 to 40 V • High input transient voltage: 50 V for 1 second • 55 dB minimum attenuation at 500 kHz • Continuous operation over full military temperature range of -55 °C to +125 °C with no power derating • One module filters the emissions of multiple SVR Series DC-DC converters 1.2 SPACE LEVEL CHARACTERIZATIONS • Fully passive design is immune to degradation from radiation • Worst-case analysis, stress, radiation, reliability reports available 1.3 MANUFACTURING AND COMPLIANCE • Qualified to MIL-PRF-38534 Class H and Class K, DLA Drawing # 13011 • Available compliant to MIL-HDBK-1547 and Aerospace TOR component level element evaluation • MIL-PRF-38534 element evaluated components • MIL-STD-461C/D/E/F requirements for conducted emissions • Manufactured in a MIL-PRF-38534 Class H and Class K facility • MIL-STD-883 • ISO-9001 1.4 PACKAGING • Low-profile: 2.000” x 1.130” x 0.355” • Max weight: 29 g • Industry standard pinout • Precision projection-welded hermetic metal case • Flanged and Non-flanged versions available 1.5 SIMILAR PRODUCTS AND ACCESSORIES • DVMH 2 A EMI filter for military/avionics applications • Custom versions available • SVR Series DC-DC converters Products and reports described in this datasheet are subject to all export license restrictions and regulations which may include but are not limited to ITAR (International Traffic in Arms Regulations) and the Export Administration and Foreign Assets Control Regulations. Further restrictions may apply. Contact VPT sales for details.

vpr Power Your Critical Mission Today O- 3.0 SPECIFICATIONS 3.1 ABSOLUTE MAXIMUM RATING E-mail: [email protected] Web: www.vptpower.com

vpr Power Your Critical Mission Today O- Tcase = -55 °C to +125 °C, Vin = +28 V ± 5%, Full Load, Unless Otherwise Specified 1. Verified by qualification testing 2. End-of-Life performance includes aging and radiation degradation and is within standard limits except where noted 3. Correction factor of 0.12 added to ceramic capacitors 4. 37.5 V Max continuous to be compliant to MIL-HDBK-1547 and Aerospace TOR Sales Information Phone:(425) 353-3010 Fax: (425) 353-4030E-mail: [email protected] Web: www.vptpower.com SVRMH28 - 6.0 Page 3

vpr Power Your Critical Mission Today O- 1. Tolerances are +0.005” unless otherwise stated 2. Case temperature is measured on the center of the baseplate surface 3. Materials: Case (Steel, gold over nickel plated); Cover (Steel, nickel plated); Pin (Copper-cored alloy 52, gold over nickel plated); Pin Seals (Glass) Sales Information Phone:(425) 353-3010 Fax: (425) 353-4030E-mail: [email protected] Web: www.vptpower.com SVRMH28 - 6.0 Page 4

vpr Power Your Critical Mission Today O- 1. Tolerances are +0.005” unless otherwise stated 2. Case temperature is measured on the center of the baseplate surface 3. Mounting holes are not threaded. Recommended fastener is 4-40 4. Materials: Case (Steel, gold over nickel plated); Cover (Steel, nickel plated); Pin (Copper-cored alloy 52, gold over nickel plated); Pin Seals (Glass) Sales Information Phone:(425) 353-3010 Fax: (425) 353-4030E-mail: [email protected] Web: www.vptpower.com

vpr Power Your Critical Mission Today O- SVRMH28 Series-o 5.0 ENVIRONMENTAL SCREENING 100% tested per MIL-STD-883 as referenced to MIL-PRF-38534. Contact sales for more information concerning additional environmental screening and testing options. VPT Inc. reserves the right to ship higher screened or SMD products to meet orders for lower screening levels at our sole discretion unless specifically forbidden by customer contract. Test Method, Condition (Class H + PIND) (Class K) Temperature Cycling Acceleration Direction Final Electrical - TM1014, Fine Leak, Condition A2 or B1 IHemeddty TM1014,...

SVRMH28 Series 6.0 STANDARD MICROCIRCUIT DRAWING (SMD) NUMBERS Do not use the SVRMH28 Series similar part number for DLA Drawing product acquisition. It is listed for reference only. For exact specifications for the DLA Drawing product, refer to the DLA Drawing. DLA Drawings can be downloaded from the DLA Land and Maritime (Previously known as DSCC) website at https://landandmaritimeapps.dla.mil/programs/defaultapps.asp. The DLA Drawing number listed above is for MIL-PRF-38534 Class K screening and standard gold plated lead finish. Please reference the DLA Drawing for other screening levels and...

vpr Power Your Critical Mission Today O- 8.0 CONTACT INFORMATION To request a quotation or place orders please contact your sales representative or the VPT, Inc. Sales Department at: Phone: (425) 353-3010 E-mail: [email protected] All information contained in this datasheet is believed to be accurate, however, no responsibility is assumed for possible errors or omissions. The products or specifications contained herein are subject to change without notice. Visit the VPT website for additional technical resources, including: Application Notes and White Papers Technical Video Labs Additional...