EURO
QUARTZ
•
High selectivity type ceramic filters
•
A variety of bandwidths available
•
Easily mounted to PCB
•
Miniature size
LTW33-455 CERAMIC FILTER
6 Element
SPECIFICATION
Frequency v. Attenuation Characteristics
2.9
4
5
2.9
2.6
4.3
7.0
11.3
0
10
3 2 1
20
LTW 33-450B
LTW 33-450D
LTW 33-450H
8.2
2.0
4.0
Connections
1
Input
2, 3, 4 Ground
5
Output
Attenuation 30
(dB)
40
50
60
70
410 420 430 440 450 460 470 480 490 500
Frequency (kHz)
Actual size
(outline top view)
Outline and Dimensions
ELECTRICAL CHARACTERISTICS
Part
Number
Centre
Frequency
(kHz)
455±2
455±2
455±1.5
455±1.5
455±1.5
455±1.5
455±1.0
455±1.0
455±1.0
455±1.0
Insertion
Loss
(dB max.)
4
4
6
4
6
6
6
6
6
6
Pass Band
Ripple
(dB max.)
2
2
2
2
2
2
2
2
2
2
6dB
Bandwidth
(kHz min.)
±15
±12.5
±7.5
±10
±6
±4.5
±3
±2
±3
±2
50dB
Bandwidth
(kHz min.)
±30
±24
±15
±20
±12.5
±10
±9
±7.5
±9
±7.5
Stop Band
Att. ±100kHz
(dB min.)
45
45
45
45
45
45
45
45
60
60
Input/Output
Impedance
(
W
)
1500
1500
1500
1500
2000
2000
2000
2000
2000
2000
LTW33-455B
LTW33-455C
LTW33-455D
LTW33-455E
LTW33-455F
LTW33-455G
LTW33-455H
LTW33-455I
LTW33-455HT
LTW33-455IT
TEST CIRCUIT
Input 1
R1
RG
LTW
Output 5
2
3
Ground
SSG
4
R2
RF
V.M.
RG+R1=R2=Input/Output Impedance
EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE
Tel: +44(0)1460 230000 Fax: +44(0)1460 230001 Email: sales@euroquartz.co.uk www.euroquartz.co.uk
EUROQUARTZ [ EUROQUARTZ LIMITED ]
