Narrow Bandwidth Filters (LZU)

Search-Stop Signal Detection Narrow Bandwidth Filters 450kHz, (Murata BFULA Compatible). DeMint ceramic filters 450kHz search-stop signal detection (LZU) series are specifically designed for signal detection circuitry used in applications such as that found in the search-stop functions of electronically tuned radios. Center frequency is also available in LTZ series a range of 450kHz ~ 470kHz.

The (LZU) series are narrow bandwidth filters. This filter is used in the application which detects the carrier peak with a narrow bandwidth amplifier, or an electronic tuner as a stop signal detector.

The (LZU) series can be customed designs and tighter tolerances available on request and conform to the RoHS directive.

Custom parts are available on request. DeMint will also produce devices outside these specifications to meet specific customer requirements, please contact our sales for more information.

Download complete PDF Narrow Bandwidth Filters (LZU).

Benefit Features :
  1. Center frequency: 455kHz. (470kHz is also available.)
  2. Most suitable for IC Station Detectors (SD).
  3. Resonant Resistance (max): 20Ω ~ 30Ω.
  4. LZU Dimensions: (7.0 x 9.0 x 3.5 mm).
  5. for IF signal detection.
Dimensions (Unit: mm) (LZU)
450kHz (LZU) Dimensions
450kHz (LZU) Dimensions
Technical Characteristics (LZU)
Part Number Resonant Frequency
Resonant Resistance
(Ω) (max)
Band Width(fa-fr)
LZU450C 450±1.0 20 14±2 IF signal detection
LZU450C4N 450±0.8 30 9±2
LZU450K3 450±1.0 30 27.5±4.5
Test Circuit (LZU)
(LZU450C) Fr/Zr Test Circuit
(LZU450C) Fr/Zr Test Circuit
(LZU450C) Fa Test Circuit
(LZU450C) Fa Test Circuit
Order Codes (LZU)
Part Number