PDM-20-250 SQ 0° DIVIDERS / COMBINERS REV: 006, 08/29/08 • SPACE QUALIFIED • 10 - 500 MHz, 2 WAY, SMA SERIES 05 TECHNICAL DESCRIPTION / APPLICATION The PDM-20-250 SQ In-Phase Power Divider/Combiner covers 10 - 500 MHz. It uses a lumped circuit technology design which provides high isolation and low VSWR. This device has been designed in accordance with Merrimac document CENG-0001, “Standard Design Requirements for Space Qualified Devices”. GENERAL SPECIFICATIONS MODEL NUMBER PDM-20-250 SQ FREQUENCY RANGE ISOLATION dB MHz MIN. 10 - 500 25 INSERTION LOSS MAX. 10 - 400 MHz AMPLITUDE BALANCE 400 - 500 MHz VSWR MAX MAX. 0.5 dB 0.6 dB 0.2 dB 1.3:1 INTERNAL LOAD IMPEDANCE OPERATING TEMPERATURE WEIGHT PHASE BALANCE CW INPUT WITH LOAD VSWR 1.2:1 MAX. WHEN USED AS A DIVIDER DISSIPATION NOM 2° 1W 100 mW max up to 70° C de-rate to 70 mW at 85° C 50 OHM MAX. -55° to +85 ° C 28 g PACKAGE OUTLINE Merrimac Industries, RF & Microwave Products Division / 41 Fairfield Place, West Caldwell, NJ 07006 Tel: 973.575.1300 / Fax: 973.575.0531 / Internet: www.Merrimacind.com