2747

KR Electronics, Inc. KR Electronics General Description KR 2747 is a 178 MHz lowpass filter. The filter has a < 1 dB at 178 MHz and >20 dB at 204 MHz and is designed for 50 Ω source and load impedance. Other passband frequencies are available. Please consult the factory. Features • 178 MHz Lowpass • 50 Ω • DIP Package www.krfilters.com Typical Performance Passband Amplitude & Group Delay (0.5 dB/div & 10 nsec/div) Overall Response (5 dB/div) 27 Nov 2006 10:00:28 CH1 CH2 PRm PRm S 21 S 21 delay log MAG 10 ns/ .5 dB/ REF 0 s REF 0 dB 27 Nov 2006 09:57:17 CH1 S 21 log MAG 5 dB/ REF 0 dB Cor 2 Cor PRm Cor 1 CH1 START .030 000 MHz STOP 500.000 000 MHz START .030 000 MHz STOP 178.000 000 MHz KR Electronics, Inc. 91 Avenel Street Avenel, NJ 07001 © 2006, KR Electronics, Inc. Web Email Phone Fax www.krfilters.com sales@krfilters.com (732) 636-1900 (732) 636-1982 Page 1 KR Electronics, Inc. KR 2747 Specifications Parameter Filter type End of Passband < 1 dB Attenuation from 204 MHz to 500 MHz Source & Load Specification Lowpass 178 MHz 20 dB min, 30 dB typical 50 Ω www.krfilters.com 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 © 2006, KR Electronics, Inc. Web Email Phone Fax www.krfilters.com sales@krfilters.com (732) 636-1900 (732) 636-1982 Page 2