KR Electronics, Inc.
KR Electronics, Inc.
General Description
KR Electronics part number 3198+ is a 253.9 MHz band-
pass filter. The filter has a 3 dB bandwidth of 20 MHz. Oth-
er frequencies are available. Please consult the factory.
www.krfilters.com
Features
253.9 MHz Bandpass Filter
3 dB Bandwidth 20 MHz typical
50
Source and Load
Surface Mount Package
SMA Connectors Also Available
Typical Performance
Overall Response
(10 dB/div)
KR Electronics, Inc.
91 Avenel Street
Avenel, NJ 07001
© 2015, KR Electronics, Inc.
3198+, Rev 0,
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 & 10 nsec/div)
www.krfilters.com
Overall Response
(10 dB/div)
KR Electronics, Inc.
91 Avenel Street
Avenel, NJ 07001
© 2015, KR Electronics, Inc.
3198+, Rev 0,
Web
Email
Phone
Fax
www.krfilters.com
sales@krfilters.com
(732) 636-1900
(732) 636-1982
Page 2
KR Electronics, Inc.
KR Electronics 3198+
Specifications
Parameter
Filter type
Center Frequency (Fc)
Insertion Loss (at Fc)
3 dBc Bandwidth
40 dB Bandwidth
Source and Load
RoHS
Specification
Bandpass
253.9 MHz
6 dBa max
20 MHz ± 2 MHz
42 MHz max
50
Yes
www.krfilters.com
Notes
4.3 dBa typical
38 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.
Web
Email
Phone
Fax
www.krfilters.com
sales@krfilters.com
(732) 636-1900
(732) 636-1982
Page 3
KR Electronics, Inc.
91 Avenel Street
Avenel, NJ 07001
© 2015, KR Electronics, Inc.
3198+, Rev 0,