KR Electronics, Inc. KR Electronics www.krfilters.com General Description KR 2157-21.4-5-50 is a 21.4 MHz bandpass filter. The filter has a 1.07 MHz min 3 dB bandwidth and is designed for 50 Ω source and load impedance. Other passband frequencies, bandwidths and impedances are available. Please consult the factory. Features • 21.4 MHz Bandpass • 50 Ω • DIP Package Typical Performance Passband Amplitude & Group Delay Overall Response (1 dB/div & 50 nsec/div) (5 dB/div) 28 Mar 2008 11:32:18 CH1 CH2 S21 S21 LOG DEL 1 dB/ 50 ns/ 28 Mar 2008 11:33:32 REF 0 dB REF 500 ns CH1 Cor S21 LOG 5 dB/ REF 0 dB Cor Smo Cor CENTER 21 . 400 000 MHz KR Electronics, Inc. 91 Avenel Street Avenel, NJ 07001 © 2008, KR Electronics, Inc. SPAN 1 . 500 000 MHz CENTER 21 . 400 000 MHz SPAN Web Email Phone Fax 15 . 000 000 MHz www.krfilters.com [email protected] (732) 636-1900 (732) 636-1982 Page 1 KR Electronics, Inc. www.krfilters.com KR 2157-21.4-5-50 Specifications Parameter Specification Filter type Bandpass Center Frequency 21.4 MHz Insertion Loss Minimum 3 dB Bandwidth Maximum 40 dB Bandwidth Source & Load < 5 dB ( 2.5 dB typical) 1.07 MHz 8.56 MHz (6.4 MHz typical) 50 Ω Physical Dimensions Metal Case Pin 1 is Input Pin 5 is Output All other Pins are Ground All leads .030” diameter Dimensions inches 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