2881 - KR Electronics

KR Electronics, Inc.
KR Electronics
www.krfilters.com
General Description
KR 2881 is a 440 MHz bandpass filter. The filter has a minimum Features
3 dB bandwidth of 50 MHz (typically 70 MHz). The typical 60
 440 MHz Center Frequency
dB bandwidth is 120 MHz. Other passband frequencies are avail 3 dB Bandwidth 50 MHz minimum
able. Please consult the factory.
 Sharp Transition to the Stopband
 Surface mount
 50  Source and Load
Typical Performance
Passband Amplitude & Group Delay
Overall Response
(1 dB/div and 10 nsec/div)
(10 dB/div)
9 Jan 2009 11:43:09
CH2
CH4
S31
S31
LOG
DEL
1 dB/
10 ns/
9 Jan 2009 11:47:33
REF 0 dB
REF 0 s
CH1
S31
LOG
10 dB/
REF 0 dB
2
Avg
16
Cor
Smo
4
Cor
CENTER
440 . 000
000
MHz
KR Electronics, Inc.
91 Avenel Street
Avenel, NJ 07001
© 2009, KR Electronics, Inc.
SPAN
50 . 000
000
MHz
START
1 . 000
000
MHz
STOP
Web
Email
Phone
Fax
1 000 . 000
000
www.krfilters.com
sales@krfilters.com
(732) 636-1900
(732) 636-1982
Page 1
MHz
KR Electronics, Inc.
www.krfilters.com
KR Electronics 2881
Specifications
Parameter
Specification
Filter type
Bandpass
Center Frequency
440 MHz
Insertion Loss
< 3.5 dB (2.5 dB typical)
3 dB Bandwidth
> 50 MHz (70 MHz typical)
Attenuation at 378 MHz
> 60 dB
Attenuation at 505 MHz
> 60 dB
60 dB bandwidth
120 MHz typical
Source and Load
50 

Physical Dimensions
Notes:
1. Surface mount package — Metal cover
2. Dimensions in inches
3. Maximum reflow temperature is 230° C for 10 sec maximum.
4. If boards are cleaned after installation, dry units completely.
KR Electronics, Inc.
91 Avenel Street
Avenel, NJ 07001
© 2009, KR Electronics, Inc.
Web
Email
Phone
Fax
www.krfilters.com
sales@krfilters.com
(732) 636-1900
(732) 636-1982
Page 2