KR Electronics, Inc. KR Electronics www.krfilters.com General Description Features • 70 MHz Center Frequency • 40 MHz 0.25 Bandwidth • Surface mount • 50 Ω Source and Load KR 2818-1 is a 70 MHz bandpass filter. The filter has a minimum 0.25 dB bandwidth of 40 MHz. Other passband frequencies are available. Please consult the factory. Typical Performance Passband Amplitude & Group Delay Overall Response (0.5 dB/div and 10 nsec/div) (10 dB/div) 23 Jun 2008 16:33:55 CH1 CH2 S31 S31 LOG DEL .5 dB/ 10 ns/ 23 Jun 2008 16:35:53 REF 0 dB REF 0 s CH1 Cor S31 LOG 10 dB/ REF 0 dB Cor Smo Cor START CENTER 70 . 000 000 MHz KR Electronics, Inc. 91 Avenel Street Avenel, NJ 07001 © 2008, KR Electronics, Inc. SPAN 40 . 000 000 1 . 000 000 MHz STOP 200 . 000 000 MHz 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 2818-1 Specifications Parameter Specification Filter type Bandpass Center Frequency Insertion Loss 70 MHz < 2 dB ( 1 dB typical) Attenuation at 50 MHz < 0.25 dB Attenuation at 90 MHz < 0.25 dB Attenuation at 21 MHz > 35 dB Attenuation at 118 MHz > 35 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