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

4-pole filters in SMD package

General application
Wireless communication systems, measurement equipment

Features

  • 4-pole filters in one ceramic package SMD 7×5 mm
  • custom specification available
  • high attenuation in the stop band
  • hermetically sealed by seam welding
  • possible to deliver in tapes wound on reels, suitable for automatic assembly
  • reflow solderable
  • RoHS, PB-free
  • high 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 7×5
 MCF 25.5-10/04 M25.5B4 25.500 4 3.5 0.4 ±5.0 40 ±27 1000 // 3.0 SMD 7×5
 MCF 35.25-12/S2 M35S2 35.250 4 4.5 1.0 ±6.0 60 ±46 1100 // 1.7 SMD 7×5
 MCF 35.25-22/03 M35.25B3 35.250 4 4.0 1.0 ±11.0 15 ±28 2400 // 0.1 SMD 7×5
 MCF 35.25-40/04 M35.25B4 35.250 4 4.0 1.0 ±20.0 15 ±40 4200 // -0.6 SMD 7×5
 MCF 45.0-20/S1 M45B1 45.000 4 3.0 1.0 ±10.0 30 ±25 950 // 1.8 SMD 7×5
 MCF 64.455-15/04 M64.455-15/04 64.455 4 6.0 2.0 ±7.5 40 ±40 350 // 3.5 SMD 7×5
 MCF 70.0-25/S2 M70S2 70.000 4 4.0 1.0 ±12.5 40 ±50 1000 // 1.0 SMD 7×5
 MCF 70.0-25/S22 M70S22 70.000 4 3.5 0.6 ±12.5 40 ±55 1000 // 0.8 SMD 7×5
 MCF 70.0-50/21 M70A7 70.000 4 3.0 1.0 ±25.0 40 ±95 1500 // 0.4 SMD 7×5
 MCF 70.0-50/22 M70A8 70.000 4 3.0 1.0 ±25.0 40 ±100 1500 // 0.4 SMD 7×5
 MCF 70.05-20/04 M7005A 70.050 4 4.5 1.0 ±10.0 20 ±25 800 // 1.0 SMD 7×5
 MCF 72.0-50/S2 M72A2 72.000 4 3.0 1.0 ±25.0 40 ±95 1300 // 0.2 SMD 7×5
 MCF 80.0-40/B2 M80B2 80.000 4 2.0 1.0 ±20.0 60 ±200 1000 // 0.4 SMD 7×5
 MCF 86.79-40/B2 M86B2 86.790 4 3.0 1.0 ±20.0 60 ±200 800 // 0.8 SMD 7×5
 MCF 90.0-30/S2 M90S2 90.000 4 3.5 1.0 ±15.0 60 ±130 450 // 1.6 SMD 7×5
 MCF 100.0-24/02
M100A1 100.000 4 4.5 1.0 ±12.0 10 ±27 350 // 2.0 SMD 7×5



 
 
 

KRYSTALY 

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