KR Electronics, Inc. KR Electronics www.krfilters.com General Description KR 2881 is a 440 MHz bandpass filter. The filter has a minimum Features 3 dB bandwidth of 50 MHz (typically 70 MHz). The typical 60 440 MHz Center Frequency dB bandwidth is 120 MHz. Other passband frequencies are avail 3 dB Bandwidth 50 MHz minimum able. Please consult the factory. Sharp Transition to the Stopband Surface mount 50 Source and Load Typical Performance Passband Amplitude & Group Delay Overall Response (1 dB/div and 10 nsec/div) (10 dB/div) 9 Jan 2009 11:43:09 CH2 CH4 S31 S31 LOG DEL 1 dB/ 10 ns/ 9 Jan 2009 11:47:33 REF 0 dB REF 0 s CH1 S31 LOG 10 dB/ REF 0 dB 2 Avg 16 Cor Smo 4 Cor CENTER 440 . 000 000 MHz KR Electronics, Inc. 91 Avenel Street Avenel, NJ 07001 © 2009, KR Electronics, Inc. SPAN 50 . 000 000 MHz START 1 . 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 2881 Specifications Parameter Specification Filter type Bandpass Center Frequency 440 MHz Insertion Loss < 3.5 dB (2.5 dB typical) 3 dB Bandwidth > 50 MHz (70 MHz typical) Attenuation at 378 MHz > 60 dB Attenuation at 505 MHz > 60 dB 60 dB bandwidth 120 MHz typical Source and Load 50 Physical Dimensions Notes: 1. Surface mount package — Metal cover 2. Dimensions in inches 3. Maximum reflow temperature is 230° C for 10 sec maximum. 4. If boards are cleaned after installation, dry units completely. KR Electronics, Inc. 91 Avenel Street Avenel, NJ 07001 © 2009, KR Electronics, Inc. Web Email Phone Fax www.krfilters.com [email protected] (732) 636-1900 (732) 636-1982 Page 2