LTW33-455 Datasheet, PDF (1/1 Pages) EUROQUARTZ limited – CERAMIC FILTER

EURO QUARTZ
•High selectivity type ceramic filters
•A variety of bandwidths available
•Easily mounted to PCB
•Miniature size
SPECIFICATION
2.9 2.9 2.6
7.0
11.3
4 3 2 1 _4.3
5
8.2
2.0
Actual size
(outline top view)
4.0
Connections
1
Input
2, 3, 4 Ground
5
Output
Outline and Dimensions
LTW33-455 CERAMIC FILTER
6 Element
Frequency v. Attenuation Characteristics
0
LTW 33-450B
10
LTW 33-450D
20
LTW 33-450H
Attenuation ³⁰
(dB) ₄₀
50
60
70
410 420 430 440 450 460 470 480 490 ₅₀₀
Frequency (kHz)
ELECTRICAL CHARACTERISTICS
Part
Number
Centre Insertion Pass Band
6dB
Frequency Loss
Ripple Bandwidth
(kHz) (dB max.) (dB max.) (kHz min.)
50dB
Bandwidth
(kHz min.)
Stop Band
Att. ±100kHz
(dB min.)
Input/Output
Impedance
(W)
LTW33-455B 455±2
4
2
LTW33-455C 455±2
4
2
LTW33-455D 455±1.5
6
2
LTW33-455E 455±1.5
4
2
LTW33-455F 455±1.5
6
2
LTW33-455G 455±1.5
6
2
LTW33-455H 455±1.0
6
2
LTW33-455I 455±1.0
6
2
LTW33-455HT 455±1.0
6
2
LTW33-455IT 455±1.0
6
2
TEST CIRCUIT
Input 1
R1
LTW
Output 5
RG
2
4
3
R2
RF
V .M.
Ground
SSG
±15
±30
45
±12.5
±24
45
±7.5
±15
45
±10
±20
45
±6
±12.5
45
±4.5
±10
45
±3
±9
45
±2
±7.5
45
±3
±9
60
±2
±7.5
60
1500
1500
1500
1500
2000
2000
2000
2000
2000
2000
RG+R1=R2=Input/Output Impedance
EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE
Tel: [phone] Fax: [phone] Email: [e-mail] www.euroquartz.co.uk