MIL-DTL-3933/25 Attenuators SV Microwave offers military SMA attenuators in accordance with MIL-DTL-3933/25. QPL - 3933 parts are designed and made under DSCC qualifications in order to withstand harsh environments within military applications. Hi-Rel versions also available. These fixed SMA coaxial attenuators operate under low power and frequency range of DC - 2 GHz up to DC - 18 GHz. These attenuators are small in size and are used in applications where space is at a premium. Specifications Material Bodies and coupling nut Lock ring and contacts Sleeve Insulators Gasket Resistor element Stainless steel per AMS-5640 Beryllium copper per ASTM B196 Brass per ASTM B16 PTFE per ASTM D1710 Silicone rubber per ZZ-R-765, Class I, IB, Grade 50/60 Aluminum nitride substrate with tantalum nitride resistor, Gold plated terminations Finish Bodies and coupling nut Contacts and sleeve Passivated per AMS-QQ-P-35, Type I I Gold per ASTM B 488, Type I I, Grade C, Class 1.52, Over nickel per AMS-QQ-N-290, Class 1 Performance Impedance Frequency range Average power Peak power 50 Ohms DC - 18.0 GHz 2.0 Watts (Note 1) 500 Watts (Note 2) Notes: 1. Power input related linearly from 25C to .5 Watts at 125C. 2. Peak power for a duty cycle of 5 x 10-4 SV Microwave is qualified to manufacture MIL-DTL-3933 Attenuators including: MIL-DTL-3933/14 SMA Attenuators - DC to 12.4 GHz MIL-DTL-3933/16 SMA Attenuators - DC to 18.0 GHz SVMIL-DTL-3933/17 Microwave * 2400 CentrePark West Drive * West -Palm Florida TNC Attenuators DCBeach, to 18.0 GHz33409 USA Telephone: 561.840.1800 * Fax: 561.842.6277 MIL-DTL-3933/18 N Attenuators - DC to 12.4 GHz, DC to 18.0 GHz www.svmicrowave.com MIL-DTL-3933/19 BNC Attenuators - DC to 4.5 GHz MIL-DTL-3933/25 Miniature SMA Attenuators - DC to 18.0 GHz MIL-DTL-3933/25 Attenuators SV Microwave QPL Attenuators Part Number Coding System To more easily illustrate the ordering procedure for SV Microwave QPL Attenuators, part number M3933/25-74S is shown below: M3933 /25 -74 S or N Military designator Attenuator Connector interface series SMA Dash number designation on specification sheet 18.0 GHz with attenuation of 8.0 dB S = Screened N = Non-Screened Dash Number/dB Values Frequency DC to 2.0 GHz Attenuation dB Nominal 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0 11.0 12.0 13.0 14.0 15.0 16.0 17.0 18.0 19.0 20.0 Dash Number 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 Frequency DC to 12.4 GHz Attenuation dB Nominal N/S N/S N/S N/S N/S N/S N/S N/S N/S N/S N/S N/S N/S N/S N/S N/S N/S N/S N/S N/S 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0 11.0 12.0 13.0 14.0 15.0 16.0 17.0 18.0 19.0 20.0 Dash Number 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 N/S N/S N/S N/S N/S N/S N/S N/S N/S N/S N/S N/S N/S N/S N/S N/S N/S N/S N/S N/S Frequency DC to 18.0 GHz Attenuation dB Nominal 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0 11.0 12.0 13.0 14.0 15.0 16.0 17.0 18.0 19.0 20.0 Dash Number 58 N/S 60 N/S 62 N/S 64 N/S 66 N/S 68 N/S 70 N/S 72 N/S 74 N/S 76 N/S 78 N/S 79 N/S 80 N/S 81 N/S 82 N/S 83 N/S 84 N/S 85 N/S 86 N/S 87 N/S 88 N/S Attenuation dB Nominal 0.5 1.5 2.5 3.5 4.5 5.5 6.5 7.5 8.5 9.5 Electrical Characteristics Attenuator Increment (dB) 0.5 to 6.5 7.0 to 8.5 9.0 to 14.0 15.0 to 20.0 Attenuation Accuracy (dB) .3 .4 .5 .6 DC to 2 GHz 2 to 4 GHz VSWR 4 to 8 GHz 1.10 1.15 1.20 8 to 12.4 GHz 12.4 to 18 GHz 1.25 1.35 Dash Number 59 N/S 61 N/S 63 N/S 65 N/S 67 N/S 69 N/S 71 N/S 73 N/S 75 N/S 77 N/S SV Microwave Screening Capabilities IAW MIL-DTL-3933 SV Microwave possesses the capability not only to manufacture military connectors that meet the DSCC specifications, but also to test and certify them. With extensive in-house testing capabilities, we ensure that when our products are placed in military environments, they will be able to support crucial airborne and terrestrial applications. In-house testing capabilities include MIL-DTL-3933 screening and material inspection. SV Microwave offers innovative solutions to satisfy your requirements. We have invested in a talented engineering staff, supported by state-of-the-art, high-frequency RF simulation design software. Our full service laboratories perform comprehensive environmental mechanical and electrical testing. We control virtually all processes with in-house machining, fabrication, assembly and acceptance and qualification testing. Using our in-house testing capabilities eliminates the need for outsourcing environmental test requirements, which results in a lower delivered cost and shorter lead-time. Inspection Capabilities * Thermal Shock * Conditioning * Stability of attenuation: after peak power * Pre-burn-in electrical: DC resistance VSWR Attenuation * Burn-in 240 hours * Post-burn-in electrical: DC resistance VSWR Attenuation * Radiograhic inspection SV Microwave * 2400 CentrePark West Drive * West Palm Beach, Florida 33409 USA Telephone: 561.840.1800 * Fax: 561.842.6277 www.svmicrowave.com