ATC HIGH POWER RESISTIVE PRODUCTS High Power Leaded Chip Attenuators Style LA1 General Specifications • Frequency Range: DC to 3 GHz • Input Power*: 150 Watts • Operating Temp Range: -55 to +150˚C • Attenuation Stability**: 0.0001 dB/dB/°C, Max. • Resistive Elements: Tantalum Nitride • Substrate Material: Aluminum Nitride • Tabs: 99.99% Pure Silver, .004 inches thick, Cover: Alumina • RoHS Compliant • Reliability: MIL-PRF-55342 .080 MAX. (2.03 mm) .040 (1.02 mm) .400 (10.16 mm) Mechanical Tolerance: ±.010 inch unless otherwise specified .250 TYP. (6.35 mm) .375 (9.53 mm) .040 TYP. (1.02 mm) .004 (.101 mm) ATC Part Number Nominal Attenuation (dB) Frequency Sensitivity (dB, max.) Maximum Deviation from Nominal (dB) VSWR (max.) LA13740P01DBFBK LA13740P02DBFBK LA13740P03DBFBK LA13740P06DBFBK LA13740P09DBFBK LA13740P10DBFBK LA13740P17DBFBK LA13740P20DBFBK LA13740P30DBFBK 1 2 3 6 9 10 17 20 30 ± 0.20 ± 0.30 ± 0.30 ± 0.30 ± 0.30 ± 0.20 ± 1.00 ± 1.00 ± 1.05 +0.45 / -0.15 0.50 / -0.30 0.60 / -0.30 +0.60 / -0.20 +0.60 / -0.20 +0.40 / -0.30 +1.00 / -1.20 +1.00 / -1.20 +1.75 / -1.20 1.55 1.50 1.50 1.30 1.30 1.25 1.30 1.25 1.25 For Attenuator Power Handling vs. Mounting Surface Temperature, see following page. ATC Leaded Chip Attenuators Part Number Code LA1 3740 P 02DB F BK Case Style Packaging BK - Plastic Carrier Tolerance F ±1% Value Case Size Termination A M E R I C A N ATC North America [email protected] T E C H N I C A L C E R A M I C S ATC Europe [email protected] ATC Asia [email protected] www.at c er am ic s .c om ATC HIGH POWER RESISTIVE PRODUCTS Attenuator Power Handling vs. Mounting Surface Temperature 350 Notes: 1. Plot refers to incident continuous power of “P” Watts 2. Mounting surface is assumed an isotherm at TM °C 3. Actual testing done at P = 100 Watts, TM = 100 °C 4. Plot based on 1-dimensional heat transfer formula: T = TM + PR, where T = area-average resistive film temperature, held to 150 °C, max. R = thermal resistance, mounting surface to resistive film ≈ 0.5 °C/W for 30- and 20- dB devices (other values will run cooler and therefore handle more power – consult factory) 300 Power Handling (Watts) 250 200 150 100 50 0 0 25 50 75 100 125 150 Mounting Surface Temperature (°C) * Test Condition: With mounting surface temperature = 75 °C, max. (see plot above). Actual test conditions are as follows: Flange attached to a large copper carrier whose surface, directly under the flange center, is held at 100 °C; power applied = 100 Watts. Specification: The attenuation shall change no more that 0.2 dB during and after a 100-hr. Burn-in per MIL-PRF-55342. ** Attenuation vs. frequency as a function of temperature, -55°C to +125°C Sales of ATC products are subject to the terms and conditions contained in American Technical Ceramics Corp. Terms and Conditions of Sale (ATC document #001-992 Rev. B 12/05). Copies of these terms and conditions will be provided upon request. They may also be viewed on ATC's website at www.atceramics.com/productfinder/default.asp. Click on the link for Terms and Conditions of Sale. ATC has made every effort to have this information as accurate as possible. However, no responsibility is assumed by ATC for its use, nor for any infringements of rights of third parties which may result from its use. ATC reserves the right to revise the content or modify its product without prior notice. © 2012 American Technical Ceramics Corp. All Rights Reserved. A M E R I C A N ATC North America [email protected] Excerpt from ATC # 001-944; Rev. R, 11/13 T E C H N I C A L C E R A M I C S ATC Europe [email protected] ATC Asia [email protected] www.at c er am ic s .c om