Krystaly, Hradec Králové, a.s.
 
4-pole filters in SMD package image

4-pole filters in SMD package

Typical application
wireless communication systems, measurement equipment

Features
  • 4-pole filters in one ceramic package SMD 7x5 mm
  • custom specification available
  • high attenuation in the stop band
  • hermetic sealing by seam welding
  • can by deliver in tapes wound on reels, suitable for automatic assembly
  • reflow solderable
  • RoHS, PB-free
  • very good shock and vibration resistance
  • external coupling capacitor is required

Examples of custom filter types in ceramic packages
Type Marking Fo Poles Loss Ripple Bandwidth Stop band Impedance    Case  
[MHz]
[db] [db] [kHz] [db] [kHz] [Ω // pF]
 MCF 21.4-30/04 M214B3 21.400 4 2.5 1.0 ±15.0 40 ±50 4250 // -1.5 SMD 7x5
 MCF 25.5-10/04 M25.5B4 25.500 4 3.5 0.4 ±5.0 40 ±27 1000 // 3.0 SMD 7x5
 MCF 35.25-22/03 M35.25B3 35.250 4 4.0 1.0 ±11.0 15 ±28 2400 // 0.1 SMD 7x5
 MCF 35.25-40/04 M35.25B4 35.250 4 4.0 1.0 ±20.0 15 ±40 4200 // -0.6 SMD 7x5
 MCF 64.455-15/04 M64.455-15/04
64.455
4 6.0 2.0 ±7.5 40
±40 350 // 3.5
SMD 7x5
 MCF 70.0-50/16 M70A5
70.0
4 3.0 1.0 ±25.0 20
±60 2000 // 0.2
SMD 7x5
 MCF 70.05-20/04 M7005A
70.050
4 4.5
1.0 ±10.0 20
±25 800 // 1.0
SMD 7x5


 
 
 

KRYSTALY 

Hradec Králové, a.s. 
Okružní 1144 
500 03 Hradec Králové 3 
Česká republika