Communication Ceramic Chip Filters (LTC455/450 U/W)

Direct (LTC455/450 U/W) surface mount communication ceramic chip filters are compatible with Murata filter CFUCG. The (LTC455/450 U/W) series for communication filter comprises small, high performance, thin (4.0mm) consisting of 4 ceramic elements. Their innovative construction is perfect for shrinking mobile communication products such as pocket pagers and cellular phones.

The surface mount LTC455/450 U/W series for AM use is one of the most recommendable intermediate filters, having such distinctive features as high selectivity, high stability and adjustment-free operation. Additionally its easy matching with IC helps create an easy circuit design.

With dimensions (7.5 x 6.0 mm) and 4.0 mm low profile, the LTC455/450 U/W filters have a small mounting area enabling flexible PCB design and are suitable for automatic placers. Standard Center Frequency is 455kHz with tolerance ±1.5 and 450kHz is also available. Pass Band Ripple (dB) max is 2db, Input / Output Impedance is 1000Ω and 1500Ω.

Custom parts are available on request. Direct will also produce devices outside these specifications to meet specific customer requirements, please contact our sales for more information. Download complete Datasheet (LTC 455/450) Communication Ceramic Chip Filters PDF (324KB).

Features :
  1. They are slim, at only 4.0mm max. thickness, and have a small mounting area enabling flexible PCB design.
  2. Operating temperature range: -20°C to +80°C.
  3. Can be reflow soldered and withstand washing.
  4. The bandwidth ranges from D to G.
  5. Mountable by automatic placers.
Dimensions (Unit: mm) (LTC 455/450 U/W)
(LTC 455EU) Dimensions
(LTC 455EU) Dimensions
(LTC 455EW) Dimensions
(LTC 455EW) Dimensions
Technical Characteristics (LTC 455/450 U/W)
(LTC 455 U) Characteristics
(LTC 455 U) Characteristics
(LTC 455 W) Characteristics
(LTC 455 W) Characteristics
Part Number Center Frequency (fo)(kHz) Insertion Loss (dB)max Pass Band Ripple (dB) max 6dB Band Width (kHz) min 40dB Band Width (kHz) max LTC455U 50dB Band Width (kHz) max LTC455W Spurious Attenuation fo±100kHz (dB) min Input / Output Impedance (Ω)
LTC 455U LTC 455W LTC 455U LTC 455W
LTC455BU LTC455BW 455±1.5 4 4 2 ±15.0 ±30 ±30 27 50 1000
LTC455CU LTC455CW 455±1.5 4 4 2 ±12.5 ±25 ±25 27 50 1000
LTC455DU LTC455DW 455±1.5 4 4 2 ±10.0 ±20 ±20 27 50 1500
LTC455EU LTC455EW 455±1.5 6 4 2 ±7.5 ±15 ±15 27 50 1500
LTC455FU LTC455FW 455±1.5 6 6 2 ±6.0 ±12 ±12 27 47 1500
LTC455GU LTC455GW 455±1.5 6 6 2 ±4.5 ±10 ±10 25 47 1500
LTC455HU LTC455HW 455±1.5 6 6 2 ±3.0 ±9.0 ±9.0 25 47 1500
LTC455IU LTC455IW 455±1.5 6 6 2 ±2.0 ±7.5 ±7.5 25 47 1500
Center frequency 450kHz is also available.
Test Circuit (LTC 455/450 U/W)
(LTC 455 U) Test Circuit
(LTC 455 U) Test Circuit
(LTC 455 W) Test Circuit
(LTC 455 W) Test Circuit
Order Codes (LTC 455/450 U/W)
LTC455BU P
Part Number
Package