KR Electronics, Inc. KR Electronics www.krfilters.com General Description Features • 353.65 MHz Center Frequency • 35 MHz Min 3 dB BW • Surface Mount Package • 50 Ω Source and Load KR 2785 is a 353.65 MHz surface mount bandpass filter. The filter has a minimum 3 dB bandwidth of 35 MHz. Other passband frequencies are available. Please consult the factory. Typical Performance Passband Amplitude & Group Delay Overall Response (1 dB/div and 10 nsec/div) (10 dB/div) 20 Jul 2007 14:56:09 CH1 CH2 S 21 S 21 log MAG delay 1 dB/ 10 ns/ 20 Jul 2007 14:58:13 REF 0 dB REF 0 s CH1 PRm S 21 log MAG 10 dB/ REF 0 dB PRm Cor Cor 1 PRm Cor 2 Smo CENTER 353.650 000 MHz KR Electronics, Inc. 91 Avenel Street Avenel, NJ 07001 © 2007, KR Electronics, Inc. SPAN 35.000 000 MHz CH1 CENTER 353.650 000 MHz SPAN 500.000 000 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 2785 Specifications Parameter Specification Filter type Bandpass Center Frequency Insertion Loss 353.65 MHz < 3 dB (< 2 dB typical) 3 dB Bandwidth 35 MHz min (46 MHz typical) Attenuation at 250 MHz 50 dB typical Attenuation at 450 MHz 40 dB min 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 © 2007, KR Electronics, Inc. Web Email Phone Fax www.krfilters.com [email protected] (732) 636-1900 (732) 636-1982 Page 2