LTW33-455HT

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 32 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