The product information in this catalog is for reference only. Please request the Engineering Drawing for the most current and accurate design information. All non-RoHS products have been discontinued, or will be discontinued soon. Please check the products status on the Hirose website RoHS search at www.hirose-connectors.com, or contact your Hirose sales representative. Fixed Attenuators - 2W power (SMA type) AT-1900 Series Features 1.Small Size Use of alumina for the attenuation element assures light weight and is cost effective. 2.SMA coupling Several configurations of SMA plug/jack couplings are available in stainless steel, assuring durability. 3.High Reliability Proven and stable performance characteristic under varying temperature, humidity and adverse environmental conditions. Product Specifications Ratings Frequency range Characteristic impedance Maximum Input Power Item 1.Vibration 2.Shock DC to 8.0GHz 50 ohms 2W Operating temperature Operating Humidity Characteristic Requirement _30c ~ +65c 95% max. Conditions Frequency of 10 to 2000 Hz, overall amplitude of 1.52 mm, acceleration of 98 m/s2 for 4 hours in each of 3 directions No electrical discontinuity of 1 s or more. No damage, cracks, or parts dislocation. Acceleration of 490 m/s2, sine half-wave waveform, 3 cycles in each of the 3 axis Temperature : -35c +15c to +35c +85c +15c to +35c Time : 30 15 max. 30 15 max. (Minutes) 5 cycles 3.Temperature cycle No damage, cracks, or parts dislocation. The test method conforms to MIL-STD-202. Material Ordering Information Component Material Finish Body Stainless steel Passivated Insulator PTFE --- Male contact Brass Gold plated Female contact Beryllium copper Gold plated Outer conductor (interior) Aluminum Nickel plated Couplings Stainless steel Passivated Radiator Aluminum Black alumite Attenuation element Alumina --- AT - 19 03 (40) 1 1 2 2 3 Fixed attenuator Series Name and coupling type: SMA plug / jack 4 3 Attenuation 03 : 3dB 06 : 6dB 10 : 10dB 4 (40): RoHS Compliant 79 04/2009 The product information in this catalog is for reference only. Please request the Engineering Drawing for the most current and accurate design information. All non-RoHS products have been discontinued, or will be discontinued Please(SMA check the products status on the Hirose website RoHS search at www.hirose-connectors.com, or contact your Hirose sales representative. AT-1900 SeriesFixed Attenuators - 2W soon. power type) Specifications Part Number Frequency Range (GHz) Attenuation (dB) DC~4 V.S.W.R. (Max) Impedance (ohms) Power (W) 1.25 50 2 1.25 50 2 1.3 50 2 30.3 AT-1903(40) 4~8 30.5 DC~4 60.3 AT-1906(40) 4~8 60.5 DC~4 100.5 AT-1910(40) 4~8 101.5 Connectors SMA type plug / jack SMA type plug / jack SMA type plug / jack Weight (g) RoHS 40 40 YES 40 External Dimensions 48 1/4-36UNS-2B O19 1/4-36UNS-2A 8.5 28 11.5 AT-1900 Type Typical Data AT-1903(40) V.S.W.R. 80 04/2009