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. Pr oduct Specifications Frequency range DC to 8.0GHz Operating temperature 30 ~ +65 Characteristic impedance 50 ohms Ratings Operating Humidity 95% max. Maximum Input Power 2W Item Characteristic Requirement Conditions Frequency of 10 to 2000 Hz, overall amplitude of 1.52 mm, 1.Vibration 2 No electrical discontinuity of 1 s or more. acceleration of 98 m/s for 4 hours in each of 3 directions 2 No damage, cracks, or parts dislocation. Acceleration of 490 m/s , sine half-wave waveform, 2.Shock 3 cycles in each of the 3 axis Temperature : -35 +15 to +35 +85 +15 to +35 3.Temperature cycle No damage, cracks, or parts dislocation. Time : 30 15 max. 30 15 max. (Minutes) 5 cycles The test method conforms to MIL-STD-202. Material Ordering Information Component Material Finish ( ) AT - 19 03 40 Body Stainless steel Passivated 1 2 3 4 --- Insulator PTFE 1 3 Male contact Brass Gold plated Fixed attenuator Attenuation 03 : 3dB Female contact Beryllium copper Gold plated 06 : 6dB Outer conductor (interior) Aluminum Nickel plated 2 Series Name and coupling type: 10 : 10dB SMA plug / jack Couplings Stainless steel Passivated 4 (40): RoHS Compliant Radiator Aluminum Black alumite Attenuation element Alumina --- 04/200979The 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. AT-1900 Series Fixed Attenuators - 2W power (SMA type) Specifications Frequency Range Attenuation Impedance Power Weight V.S.W.R. Part Number Connectors RoHS (GHz) (dB) (Max) (ohms) (W) (g) DC~430.3 SMA type AT-1903(40) 1.25 50 2 40 plug / jack 4~8 30.5 DC~460.3 SMA type AT-1906(40) 1.25 50 2 40 YES plug / jack 4~8 60.5 DC~4100.5 SMA type AT-1910(40) 1.3 50 2 40 plug / jack 4~8 101.5 External Dimensions 48 1/4-36UNS-2A 1/4-36UNS-2B 8.5 28 11.5 AT-1900 Type Typical Data AT-1903(40) V.S.W.R. 80 04/2009 19