KR Electronics, Inc. KR Electronics www.krfilters.com General Description KR 2831 is a 405 MHz surface mount bandpass filter. The filter has a minimum 1 dB bandwidth of 30 MHz. Other passband frequencies are available. Please consult the factory. Features • Surface Mount Package • 50 Ω Source and Load Typical Performance Passband Amplitude & Group Delay Overall Response (0.5 dB/div and 5 nsec/div) (10 dB/div) 3 May 2008 17:50:22 CH1 CH2 S31 S31 LOG DEL .5 dB/ 5 ns/ 3 May 2008 17:53:49 REF 0 dB REF 10 ns CH1 Cor S31 LOG 10 dB/ REF 0 dB Cor Smo Cor CENTER 405 . 000 000 MHz KR Electronics, Inc. 91 Avenel Street Avenel, NJ 07001 © 2008, KR Electronics, Inc. SPAN 50 . 000 000 MHz START 100 . 000 000 MHz STOP Web Email Phone Fax 3 000 . 000 000 MHz www.krfilters.com [email protected] (732) 636-1900 (732) 636-1982 Page 1 KR Electronics, Inc. www.krfilters.com KR Electronics 2831 Specifications Parameter Specification Filter type Bandpass Center Frequency 405 MHz Insertion Loss < 3 dB (1.5 dB typical) 1 dB Bandwidth 30 MHz min Attenuation at 305 MHz & 505 MHz 45 dB min Attenuation at 200 MHz & 600 MHz 60 dB min 50 Ω Source and Load Physical Dimensions Notes: 1. Surface mount package — Metal cover, open frame 2. Dimensions in inches 3. Maximum reflow temperature 209° C for 10 seconds maximum 4. If boards are cleaned after installation, units must be completely dried KR Electronics, Inc. 91 Avenel Street Avenel, NJ 07001 © 2008, KR Electronics, Inc. Web Email Phone Fax www.krfilters.com [email protected] (732) 636-1900 (732) 636-1982 Page 2