KR Electronics, Inc. KR Electronics www.krfilters.com General Description KR 2820-12.7 is a 12.7 MHz surface mount bandpass filter. The filter has a 3 dB bandwidth of 2.5 MHz. Other passband frequencies are available. Please consult the factory. Features • 12.7 MHz Center Frequency • Surface Mount Package • 50 Ω Source and Load Typical Performance Passband Amplitude & Group Delay Overall Response (1 dB/div and 100 nsec/div) (10 dB/div) 26 Feb 2008 18:58:00 CH1 CH2 S 21 S 21 log MAG delay 1 dB/ 100 ns/ 26 Feb 2008 18:59:30 REF 0 dB REF 300 ns CH1 PRm S 21 log MAG 10 dB/ REF 0 dB PRm Cor 1 2 PRm Cor Smo CENTER 12.700 000 MHz KR Electronics, Inc. 91 Avenel Street Avenel, NJ 07001 © 2008, KR Electronics, Inc. SPAN 2.500 000 MHz CH1 START 1.000 000 MHz STOP 100.000 000 MHz Web Email Phone Fax www.krfilters.com [email protected] (732) 636-1900 (732) 636-1982 Page 1 KR Electronics, Inc. www.krfilters.com KR Electronics 2820-12.7 Specifications Parameter Specification Filter type Bandpass Center Frequency 12.7 MHz Insertion Loss < 3.5 dB (< 2 dB typical) Attenuation at 11.45 MHz 3 dB ± 1 dB Attenuation at 13.95 MHz 3 dB ± 1 dB Attenuation at 8.95 MHz > 60 dB Attenuation at 16.45 MHz > 60 dB 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