Ceramic Filter

Phone: +86 10 6301 4184

Fax: +86 10 6301 9167

Email: sales@vanlong.com

Web: http://www.vanlong.com

January 17, 2001

Vanlong Technology Co., Ltd.

LTM455_U & LTM450_U Series Ceramic Filter

LTM455_U and LTM450_U series ceramic filters are widely

used in telecommunication, cable, radar, TV set, tape

recorder, video camera and other electronic products due to

its lower price and stable performances.

Specifications:

LTM_U Series

Frequency Range (fc):

LTM455_U Series:

455KHz

LTM450_U Series:

450KHz

Operating Temperature:

-20

°C ~ +80°C

Standard

Storage Temperature:

-40

°C ~ +85°C

6dB Bandwidth and Attenuation Bandwidth:

B:

± 15KHz

± 30KHz

C:

± 12.5KHz

± 24KHz

D:

± 10KHz

± 20KHz

E:

± 7.5KHz

± 15KHz

F:

± 6KHz

± 12.5KHz

G:

± 4.5KHz

± 10 KHz

H:

± 3KHz

± 9KHz

I:

± 2KHz

± 7.5KHz

Attenuation Specified:

40dB min

Stop Band Attenuation:

27dB min (B,C,D,E,F)

at fc

± 100KHz

25dB min (G,H,I)

Insertion Loss:

4.0dB max (B,C,D)

6.0dB max (E,F,G,H,I)

Input/Output Impedance:

1.5K

Ω (B,C,D,E)

2.0K

Ω (F,G,H,I)

All dimensions are in mm

Ordering Information

Note:

1.

Other frequencies, bandwidth ranges available. Consult VTC Support for

specific requirements.

2.

Not all combinations of the above bandwidth ranges are available. Consult VTC

Support if your requirement is not standard.

3.

All specifications subject to change without notice.

Product name + Frequency + Bandwidth Code.

i.e. LTM455BU

LTM455_U

LTM450_U