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CERAMIC FILTER, TRAP, DISCRIMINATOR |
| For more than two decades, piezo technology has been instrumental in the proliferation of solid state electronics.
A view of the future reveals that even greater expectations will be placed on piezoelectric material in the area of
new applications and for more stringent performance criteria in current products. Traditionally, nearly all low and
high-end AM / FM commercial radios use piezo band-pass devices. However, applications are also found in cordless telephones,
cellular systems, 2-way communications, and the television industry. As a world leader in the development of piezo technology, Direct Electronics had been able to develop specialized piezo materials which when combined with an advance design have resulted in a complete line of practical, inexpensive piezo devices for entertainment and communications applications. |
| CERAMIC FILTER, TRAP, DISCRIMINATOR- Download Entire Piezoelectric Catalogue, PDF file (544KB). |
| CERAMIC FILTER - FM SERIES |
Description |
Type | Frequency Range | Murata (P/N) |
Chip LTCS10.7M Series
Chip LTCS10.7M Filters (Compatible to Murata SFECS10M7) for FM-receivers are small, high performance and super thin (1.5mm max.). |
Chip | 10.7 MHz | SFECS10M7 |
FM Receiver LT10.7M Series
LT10.7M Filters (Compatible to Murata SFE10M7 FM-IF) FM Receiver are monolithic devices which utilize the energy-trapped thickness vibration-mode. |
Dip | 10.7 MHz | SFE10M7 FM-IF |
Chip LTCA/CV10.7M Series
Chip LTCA/CV10.7M (Compatible to Murata SFECV10M7 Ceramic Filter AM) has been made smaller, thinner and in a chip configuration for surface mounting. |
Chip | 10.7 MHz | SFECV10M7 |
| Low Loss Type LT10.7M A10 Series
LT10.7M A10 Series Low Loss Type (Compatible to Murata SFE10M7 Ceramic Filter A10) has been made smaller, thinner and in a chip configuration for surface mounting. |
Dip | 10.7 MHz | SFE10M7 A10 |
| Wide/Narrow Band-width LT10.7M Series Wide/Narrow Band-width LT10.7M Series (Compatible to |
Dip | 10.7 MHz | SFE10M7 DBS |
| CERAMIC FILTER - TV/VCR STAGE |
Description |
Type | Frequency Range | Murata (P/N) |
TV/VCR Stage LT MB Series
LT MB Series (Compatible to Murata Ceramic Filters SFE MB series) are a high selectivity filter for 2 channel multi-sound TV. |
Dip | 4.5~6.5 MHz | SFE MB |
High-Selectivity for TV/VCR Stage - LTT MA Series
LTT High-Selectivity Series (Compatible to Murata Ceramic Filter SFT Series) are 4 element devices that offer more selectivity than the conventional LT series (Murata SFE). |
Dip | 4.5~6.74 MHz | SFT |
| Low Spurious for TV/VCR Stage - LTS MCB/MDB Series LTS MCB/MDB Series TV/VCR Stage with Low Spurious |
Dip | 4.5~6.5 MHz | SFSH MCB/MDB |
(Compatible to Murata Ceramic Filter SFSH MCB/MDB)| CERAMIC FILTER - COMMUNICATION |
Description |
Type | Frequency Range | Murata (P/N) |
AM - LTP Series
LTP for AM (Compatible to Murata Ceramic Filter SFU450/455kHz ) are designed to address the needs of standard AM filtering requirements. |
Dip | 450~470 KHz | SFU450/455kHz |
AM - LTZ Series
LTZ Series AM (Compatible to Murata Filter SFZ Series) are designed to address the needs of standard AM filtering requirements and are recommended for use in low cost products where economically, efficient designs are critical. |
Dip | 450~470 KHz | SFZ |
AM - LT Miniature Series
LT MINIATURE (Compatible to Murata Ceramic Filter PFB Series) is one of the most recommendable intermediate type, having such distinctive features as high selectivity, high stability and adjustment-free operation. |
Dip | 450~470 KHz | PFB |
Communication - LTB Series
Ceramic Filter LTB series comprises small, high performance. Their innovative construction is perfect for shrinking mobile communication products such as pocket pagers and cellular phones. |
Dip | 450~470 KHz | - |
Ceramic Filtersfor Radio-Cassette Recorder- LT Series
Ceramic Filter LT465A for Radio-Cassette Recorder were designed to address the needs of standard radio cassette recorder requirements. |
Dip | 450~470 KHz | - |
450 kHz Search-Stop Signal Detection - LZU Series
LZU for Search-stop Signal Detection (Compatible to Murata Ceramic Filter BFU Series) are specifically designed for signal detection circuitry used in applications such as that found in the search-stop functions of electronically tuned radios. |
Dip | 450 KHz | BFU |
| Communication - LTC 455/450 Series LTC 455/450 U/W Series (Compatible to Murata |
Chip | 455/450 KHz | CFUCG |
| Communication - LTM 455/450 Series LTM 455/450 U/W for Communication (Compatible to |
Dip | 455/450 KHz | CFUM/WM |
| Communication - LT 455/450 U/W Series LT 455/450 U/W for Communication (Compatible to |
Dip | 455/450 KHz | CF, SF |
Ceramic Filter CFUCG Series) comprises small, high performance, thin (4.0mm) consisting of 4 ceramic elements.
Murata Ceramic Filter CFUM/WM 455/450 Series) are miniaturized versions of the Murata CFU/CFWS lines. These compact, highly selective characteristics are recommended for use in applications ranging from two-way radio to auxiliary filters in high class transceivers.
Murata Ceramic Filter CF, SF series) are 4-element and 6-element devices connected in ladder form. These highly selective filters are designed to address the G.D.T.
| CERAMIC DISCRIMINATORS |
Description |
Type | Frequency Range | Murata (P/N) |
FM - JTCV10.7M Series 
JTCV10.7M For FM are resonated devices that offer adjustment free audio detection in both wide and narrow bandwidths. |
Chip | 10.7 MHz | - |
FM - JT10.7M Series
JT10.7M For FM (Compatible to Murata Discriminator CDA 10.7) are resonated devices that offer adjustment free audio detection in both wide and narrow bandwidths. |
Dip | 10.7 MHz | CDA10M7 |
| Communication - JTC Series JTC for Communication (Compatible to Murata Discriminator |
Chip | 455 KHz | CDBC |
| Communication - JTM Series JTM for Communication (Compatible to Murata Discriminator |
Dip | 455 KHz | CDB/CDBC/CDBM |
CDBC) consists of wide band piezoelectric resonator. It is ideal for mobile communication equipments due to its small size and light weight.
CDB/CDBC/CDBM) consists of wide band piezoelectric resonator. It is ideal for mobile communication equipment due to its small size and light weight.
| CERAMIC TRAP FOR TV/VCR STAGE |
Description |
Type | Frequency Range | Murata (P/N) |
Triple Trap - XT MT Series
XT MT Series (Compatible to Murata Trap Filter TPT Series ) consist of 3 wafers with 3 trap frequencies. Recommended for Multi standard sets. |
Dip | 4.5~6.5 MHz | TPT |
Double Trap - XT MW Series
XT MW Series (Compatible to Murata Trap Filter TPWA Series) consist of 2 wafers with 2 trap frequencies. Recommended for Multi standard set. Features with good performance of attenuation and space saving with 3-terminal type. |
Dip | 4.5~6.5 MHz | TPWA |
Chrominance Carriers - XT MJ/MB Series
XT MJ for Chrominance Carrier (Compatible to Murata Trap Filter TPS MJ Series) are band reject device used for video and sound IF attenuation. |
Dip | 3.58~6.5 MHz | TPS MJ |
TV/VCR Stage - XT MB Series
XT MB for TV/VCR Stage (Compatible to Murata Trap Filter TPS MB Series) are band reject type used for video and sound IF attenuation. |
Dip | 4.5~6.5 MHz | TPS MB |
Correlation |
| Piezo Electric Devices Precaution Usage The piezo by itself is not a clock, so it must be used with circuitry built into the IC to create the clock signal. The clock circuit consists of the passive resonator, quartz or ceramic piezo, and an active amplifier that is built into the IC. Please refer to this page for Piezo Electric Devices Precaution Usage. |
| Redial Taping Dimensions Redial Taping Dimensions of Ceramic Filters, Resonators, Discriminators, and Trap Filters. |
- PIEZOELECTRIC & MIRCOWAVE
- FILTERS - For Audio Visual, Communication Equipment
- RESONATORS - LC Oscillation, Electrical Resonance
- CRYSTAL RESONATORS - Ceramic Quartz Crystal
- DIELECTRIC - High Q Throughout Microwave Bands
- SAW - Low Profile, for CDMA800/1900/GPS System
- RESISTORS
- GENERAL TYPE - Low Power Consumption
- PRECISION - Tighter Tolerance, Lower TCR
- POWER TO-220 STYLE - Thin Film, High Precision
- POWER TYPE - Chambers, Braking, Load Banks
- HIGH VOLTAGE - Extreme Energy Consumption
- MELF - Metal Electrode Leadless Face
- CURRENT SENSE - Low Resistance
- SMD - Surface Mount Device, Chip Type
- INDUCTORS & COILS
- RF INDUCTOR - SMD Type, Multilayer Beads, High SRF
- POWER INDUCTOR - SMT Low-Profile, High-Current
- FIXED INDUCTOR - Radial, Axial, Through Hole Type
- COILS - SMD Common Mode Choke
| Taiwan: | No. 137, Sec. 1, Chung Shin Rd., Wu Ku Hsiang, Taipei Hsien, Taiwan, R.O.C. TEL: +886-2-2981 0109; FAX: +886-2-2988 7487 |
| China: | 12F, Zhongxing Industry Bld., Chuangye Rd., Shenzhen, China. TEL: +86-755-2605 5363, 2605 5364; FAX: +286-755-2605 5365 |
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