2839

KR Electronics, Inc. KR Electronics General Description KR 2839 is a 25 MHz elliptic bandpass filter. The 1 dB bandwidth is 6 MHz minimum. The filter is group delay and amplitude equalized. Other center frequencies and bandwidths available. Please consult the factory. www.krfilters.com Features  25 MHz Center Frequency  6 MHz min 1 dB Bandwidth  Group Delay/Phase Equalized  Elliptic Response  Surface Mount  50  Source and Load Typical Performance Overall Response (10 dB/div) KR Electronics, Inc. 91 Avenel Street Avenel, NJ 07001 © 2009, KR Electronics, Inc. 2839, Rev 0, May 19, 2009 Web Email Phone Fax www.krfilters.com sales@krfilters.com (732) 636-1900 (732) 636-1982 Page 1 KR Electronics, Inc. KR Electronics Typical Performance Passband Amplitude & Group Delay (0.5 dB/div & 10 nsec/div) www.krfilters.com Overall Stopband to 1 GHz (10 dB/div) KR Electronics, Inc. 91 Avenel Street Avenel, NJ 07001 © 2009, KR Electronics, Inc. 2839, Rev 0, May 19, 2009 Web Email Phone Fax www.krfilters.com sales@krfilters.com (732) 636-1900 (732) 636-1982 Page 2 KR Electronics, Inc. KR Electronics 2839 Specifications Parameter Filter type Center Frequency Insertion Loss Minimum 1 dB Bandwidth Attenuation 20 MHz Attenuation 30 MHz Passband Ripple Source and Load Specification Bandpass 25 MHz < 6 dB (3.5 dB typical) 6 MHz min 40 dB min 40 dB min < 0.5 dB 50   www.krfilters.com Ultimate attenuation >50 dB Ultimate attenuation >50 dB Physical Dimensions Notes: 1. Surface mount package — Metal cover open frame 2. Dimensions in inches 3. Maximum reflow temperature is 209° C for 10 sec maximum. 4. If boards are cleaned after installation, units must be completely dried. KR Electronics, Inc. 91 Avenel Street Avenel, NJ 07001 © 2009, KR Electronics, Inc. 2839, Rev 0, May 19, 2009 Web Email Phone Fax www.krfilters.com sales@krfilters.com (732) 636-1900 (732) 636-1982 Page 3