KR Electronics, Inc.
KR Electronics, Inc.
General Description
KR Electronics part number 3135-140-20 is a 140 MHz
bandpass filter. The filter has a min 1 dB bandwidth of
20 MHz. Other frequencies are available. Please consult
the factory.
www.krfilters.com
Features
140 MHz Bandpass Filter
20 MHz min Bandwidth
Sharp Elliptic Transition to Stopband
50
Source and Load
Surface Mount Package
Also Available with SMA Connectors
Typical Performance
Overall Response
(10 dB/div)
KR Electronics, Inc.
91 Avenel Street
Avenel, NJ 07001
© 2014, KR Electronics, Inc.
3135-140-20, Rev 0, February 14, 2014
Web
Email
Phone
Fax
www.krfilters.com
sales@krfilters.com
(732) 636-1900
(732) 636-1982
Page 1
KR Electronics, Inc.
KR Electronics, Inc.
Typical Performance
Passband Amplitude & Group Delay
(1 dB/div & 5 nsec/div)
www.krfilters.com
Overall Response
(10 dB/div)
KR Electronics, Inc.
91 Avenel Street
Avenel, NJ 07001
© 2014, KR Electronics, Inc.
3135-140-20, Rev 0, February 14, 2014
Web
Email
Phone
Fax
www.krfilters.com
sales@krfilters.com
(732) 636-1900
(732) 636-1982
Page 2
KR Electronics, Inc.
KR Electronics 3135-140-20
Specifications
Parameter
Filter type
Center Frequency (Fc)
Insertion Loss (at Fc)
Attenuation at 130 MHz
Attenuation at 140 MHz
1 dBc Bandwidth
45 dBc Bandwidth
Source and Load
Specification
Bandpass
140 MHz
2 dBa max
1 dBc max
1 dBc max
20 MHz min
60 MHz max
50
www.krfilters.com
Notes
1 dBa typical
Relative to Insertion Loss at Fc
Relative to Insertion Loss at Fc
36 MHz typical
58 MHz typical
Physical Dimensions
Notes:
1. Surface mount package — Metal cover open frame
2. Dimensions in inches
3. Maximum reflow temperature is 230° C for 10 sec maximum.
4. If boards are cleaned after installation, units must be completely dried.
KR Electronics, Inc.
91 Avenel Street
Avenel, NJ 07001
© 2014, KR Electronics, Inc.
3135-140-20, Rev 0, February 14, 2014
Web
Email
Phone
Fax
www.krfilters.com
sales@krfilters.com
(732) 636-1900
(732) 636-1982
Page 3