KR Electronics, Inc. KR Electronics www.krfilters.com General Description KR 2874+ is a 350 MHz bandpass filter. The filter has a miniFeatures mum 0.75 dB bandwidth of 50 MHz. Other passband frequencies 350 MHz Center Frequency are available. Please consult the factory. 50 MHz minimum 0.75 dB Bandwidth Sharp Transition to the Stopband Surface Mount 50 Source and Load Typical Performance Passband Amplitude & Group Delay Overall Response (0.5 dB/div and 2 nsec/div) (10 dB/div) 12 Dec 2008 10:24:49 CH2 CH4 S31 S31 LOG DEL .5 dB/ 2 ns/ 12 Dec 2008 10:28:27 REF 0 dB REF 10 ns CH1 S31 LOG 10 dB/ REF 0 dB 2 Cor 4 Smo Cor CENTER 350 . 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 1 000 . 000 000 www.krfilters.com [email protected] (732) 636-1900 (732) 636-1982 Page 1 MHz KR Electronics, Inc. www.krfilters.com KR Electronics 2874+ Specifications Parameter Specification Filter type Bandpass Center Frequency 350 MHz Insertion Loss < 2 dB (1.2 dB typical) Attenuation at 325 MHz & 375 MHz < 0.75 dB (< 0.5 dB typical) Attenuation at 280 MHz & 420 MHz > 40 dB Attenuation at 210 MHz & 490 MHz > 60 dB 50 Source and Load Physical Dimensions Notes: 1. Surface mount package — Metal cover, open frame 2. Dimensions in inches 3. Maximum reflow temperature 230° 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