KR Electronics, Inc.
KR Electronics, Inc.
General Description
KR Electronics part number 3135-70-20 is a 70 MHz
group delay equalized bandpass filter. The filter has a min
1 dB bandwidth of 20 MHz. Other frequencies are availa-
ble. Please consult the factory.
www.krfilters.com
Features
70 MHz Bandpass Filter
20 MHz Bandwidth
Sharp Elliptic Transition to Stopband
Group Delay Equalized for Linear Phase
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.
3135-70-20, 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.
3135-70-20, 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 3135-70-20
Specifications
Parameter
Filter type
Center Frequency (Fc)
Insertion Loss (at Fc)
Attenuation at 60 MHz
Attenuation at 80 MHz
45 dBc Bandwidth
Source and Load
Specification
Bandpass
70 MHz
3.5 dBa max
1 dBc max
1 dBc max
40 MHz max
50
www.krfilters.com
Notes
2.7 dBa typical
Relative to Insertion Loss at Fc
Relative to Insertion Loss at Fc
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.
3135-70-20, Rev 0, February 14, 2014
Web
Email
Phone
Fax
www.krfilters.com
sales@krfilters.com
(732) 636-1900
(732) 636-1982
Page 3
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