
FEATURES
 Ultra small size
 6.3 mm profile
 Broad bandwidth
 High selectivity
 6 elements
RXD TECHNOLOGIES, LLC.,
 15004 W. 106TH, Lenexa, KS 66215
Visit us online at www.rxdtech.com
913-307-0188  FAX 913-307-0504 
800-228-8108
53
Ultra small size high selectivity type ceramic filter for
communication use.
6 ELEMENT CERAMIC FILTER
LTM450W 
SERIES
7.1
6
2
9.5
6.4
4
3
4
5
2
1
Connection
Input
1
Ground
Output
Ground
Ground
3
4
5
2
2.6
2.9
7.1
Figure 1) LTM450W –  Front, Side and Bottom views
CENTER
FREQUENCY
(KHz)
450 ±2.0
450 ±2.0
450 ±1.5
450 ±1.5
450 ±1.5
450 ±1.5
450 ±1.0
450 ±1.0
450 ±1.0
450 ±1.0
INSERTION
LOSS
(dB) MAX.
4
4
4
6
6
6
6
6
6
6
PASS BAND
RIPPLE
(dB) MAX.
2
2
2
2
2
2
2
2
2
2
6 dB
50 dB 
STOP BAND ATT.
±100KHZ
(dB) MIN.
45
45
45
45
45
45
55
55
60
60
INPUT / OUTPUT
IMPEDANCE
(
)
1500
1500
1500
1500
2000
2000
2000
2000
2000
2000
PART NUMBER
BANDWIDTH
(KHz) MIN.
±15
±12.5
±10
±7.5
±6
±4.5
±3
±2
±3
±2
BANDWIDTH
(dB) MAX.
±30
±24
±20
±15
±12.5
±10
±9
±7.5
±9
±7.5
LTM450BW
LTM450CW
LTM450DW
LTM450EW
LTM450FW
LTM450GW
LTM450HW
LTM450IW
LTM450HTW
LTM450ITW
Note: To avoid potential problems, connect the output to an IF amplifier 
through a DC cut capacitor. 
Avoid applying a direct current to output end of the ceramic filters (between 
∞
 and 
≠
).
Rg
Rg+R1=R2=input/output impedance
S.S.G.  
LTM
 V.M. 
RF  
R2  
1
2
3
4
5
Figure 2) LTM450W –  Measuring Circuit
Frequency (KHz)
A
0
10
20
30
40
50
60
410
420
430
440
450
460
470
480
490
500
LTM450BW
LTM450EW
LTM450HW
Figure 3) LTM450W – Characteristics
OPERATING CONDITIONS/ELECTRICAL CHARACTERISTICS
PACKAGE DIMENSIONS (mm)