KR Electronics, Inc. KR Electronics www.krfilters.com General Description Features • 49 MHz Bandpass • 10 MHz Bandwidth • High Stopband Attenuation • 50 Ω Source and Load • Surface Mount Package KR 2643 is a 49 MHz bandpass filters with a minimum 3 dB bandwidth of 10 MHz. Other passband frequencies are available. Also available in a surface mount package. Please consult the factory. Typical Performance Passband Amplitude & Group Delay Overall Response (1 dB/div and 20 nsec/div) (10 dB/div) 13 Jan 2006 09:54:18 CH1 CH2 S 21 S 21 log MAG delay 1 dB/ 20 ns/ 13 Jan 2006 09:51:02 REF 0 dB REF 80 ns CH1 S 21 log MAG 10 dB/ REF 0 dB PRm PRm Cor Cor 1 2 PRm Cor CENTER 49.000 000 MHz KR Electronics, Inc. 91 Avenel Street Avenel, NJ 07001 © 2006, KR Electronics, Inc. SPAN 10.000 000 MHz CENTER 49.000 000 MHz SPAN 80.000 000 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 2643 Bandpass Specifications Parameter Specification Filter type Bandpass Center Frequency Insertion Loss 3 dB Bandwidth 49 MHz < 3 dB (< 1.5 dB Typical) > 10 MHz Attenuation at 39 MHz > 50 dB Attenuation at 59 MHz > 50 dB Source & Load 50 Ω Physical Dimensions Notes: 1. Surface mount package — Metal cover (can also be supplied in an package with SMA Connectors) 2. Dimensions in inches 3. Use SN60 or SN63 solder during installation. Maximum reflow temperature is 209° C for 15 sec maximum. 4. If boards are cleaned after installation, units must be completely dried to remove any entrapped moisture. KR Electronics, Inc. 91 Avenel Street Avenel, NJ 07001 © 2006, KR Electronics, Inc. Web Email Phone Fax www.krfilters.com [email protected] (732) 636-1900 (732) 636-1982 Page 2