KR Electronics, Inc. KR Electronics, Inc. www.krfilters.com General Description KR Electronics part number 3178-120 is a 120 MHz bandpass filter. The filter has a 3 dB bandwidth of 9.5 MHz. Other center frequencies and bandwidths are available. Please consult the factory. Features 120 MHz Bandpass Filter 9.5 MHz 3 dB Bandwidth 50 Source and Load SMA Connectors Surface mount available Typical Performance Overall Response (10 dB/div) KR Electronics, Inc. 91 Avenel Street Avenel, NJ 07001 © 2014, KR Electronics, Inc. 3178-120, Rev 0, November 22, 2014 Web Email Phone Fax www.krfilters.com [email protected] (732) 636-1900 (732) 636-1982 Page 1 KR Electronics, Inc. KR Electronics, Inc. Typical Performance www.krfilters.com Passband Amplitude & Group Delay (1 dB/div & 20 nsec/div) Overall Response (10 dB/div) KR Electronics, Inc. 91 Avenel Street Avenel, NJ 07001 © 2014, KR Electronics, Inc. 3178-120, Rev 0, November 22, 2014 Web Email Phone Fax www.krfilters.com [email protected] (732) 636-1900 (732) 636-1982 Page 2 KR Electronics, Inc. www.krfilters.com KR Electronics 3178-120 Specifications Parameter Specification Filter type Bandpass Center Frequency Fc 120 MHz Insertion Loss at Fc 3.8 dBa max 1 dBc Bandwidth 7.5 MHz typical 3 dBc Bandwidth 9.5 MHz ±0.5 MHz 20 dBc Bandwidth 15.7 MHz typical 40 dBc Bandwidth 24.6 MHz typical 60 dBc Bandwidth 39 MHz typical Source and Load 50 Notes 2.8 dBa typical Physical Dimensions Notes: 1. Dimensions in inches 2. Rectangular case 3. Also available in surface mount package 1.5” x 0.5” x 0.5” KR Electronics, Inc. 91 Avenel Street Avenel, NJ 07001 © 2014, KR Electronics, Inc. 3178-120, Rev 0, November 22, 2014 Web Email Phone Fax www.krfilters.com [email protected] (732) 636-1900 (732) 636-1982 Page 3