Lt455 /450...W Series Ceramic Filters
Features
● Input / Output Impedance: 1000Ω ~ 2000Ω
● Highly Selective Ceramic Filters
● Center frequency: 450kHz, 455kHz
● RoHS Compliant
● Insertion Loss (dB) max: 4 db, 6 db
● Pass Band Ripple (dB) max: 2 db
● Applications: Radio Communication
etc
Part Number
Insertion
Loss
(dB) Max.
50dB
Band Width
(KHz) Min.
LT455BW
Test Circuit
Characteristics
Dimensions [mm]
±30
11.0
0.8
8.0
①
②
③
①Input
②③④GND
⑤Output
Center
Frequency
(KHz)
Input /Output
Impedance (Ω)
455±2.0
2 40 1500
LT455CW
±24
455±2.0
2
40
1500
LT455DW
±20
455±1.5
2
40
1500
LT455EW
±15
455±1.5
2
40
1500
LT455FW
±12.5
455±1.5
2 40 2000
LT455GW
±10
455±1.5
2
40
2000
LT455HW
±9
455±1.0
2
40
2000
LT455IW
±7.5
455±1.0
2
40
2000
6dB
Band Width
(KHz) Min.
Stop Band Att.
±100KHz
(dB) Min.
Passband
Ripple
(dB) Max.
LT455HTW
±9
455±1.0
2
60
2000
4
4
4
6
6
6
6
6
6
±15
±12.5
±10
±7.5
±6
±4.5
±3
±2
±3
Part Number
Insertion
Loss
(dB) Max.
50dB
Band Width
(KHz) Min.
LT450BW
±30
Center
Frequency
(KHz)
Input /Output
Impedance (Ω)
450±2.0
2 40 1500
LT450CW
±24
450±2.0
2
40
1500
LT450DW
±20
450±1.5
2
40
1500
LT450EW
±15
450±1.5
2
40
1500
LT450FW
±12.5
450±1.5
2 40 2000
LT450GW
±10
450±1.5
2
40
2000
LT450HW
±9
450±1.0
2
40
2000
LT450IW
±7.5
450±1.0
2
40
2000
6dB
Band Width
(KHz) Min.
Stop Band Att.
±100KHz
(dB) Min.
Passband
Ripple
(dB) Max.
LT450HTW
±9
450±1.0
2
60
2000
4
4
4
6
6
6
6
6
6
±15
±12.5
±10
±7.5
±6
±4.5
±3
±2
±3
Standard Specifications (450KHz)
Standard Specifications (455KHz)
7.0
4.0
2.9 2.9 2.6
4.3
⑤
④
⑤
①
②③④
LT455EW
R1
Rg
S.S.G
R2
RF
V.W
①
②
③
④
⑤
Filter
Rg+R1=R2=Input /Output Impedance
Attenuation (dB)
Frequency (KHz)
10
20
30
40
50
0
410 430 450 460 480 500
LT455BW
LT455EW
LT455HW
Ceramic Filter
LT450/455 W | Band Pass
Shenzhen Crystal Technology Industrial Co., Ltd.