MCF (MONOLITHIC CRYSTAL FILTER) Features:
Specifications
| Model | No. of Poles | Pass Bandwidth (dB)(kHz) | Stop Bandwidth (dB)(kHz) | Ripple (dB) | Insertion Loss (dB) | Guaranteed Attenuation (dB) | Terminating Impedance (Kohms//pF) | Package |
| 21M 7.5A | 2 | 3+-3.75 | 18+-14 | 0.5 | 2.0 | 20 | 0.85//5.0 | UM1-3 |
| 21M 7.5B | 4 | 3+-3.75 | 40+-14 | 1.0 | 2.5 | 40 | 0.85//5.0 | UM1-3X2 |
| 21M 7.5C | 6 | 3+-3.75 | 60+-12.5 | 2.0 | 3.0 | 40 | 0.85//5.0 | D2 |
| 21M 7.5D | 8 | 3+-3.75 | 80+-12.5 | 2.0 | 4.0 | 90 | 0.85//5.0 | D2 |
| 21M 12A | 2 | 3+-6.0 | 18+-23 | 0.5 | 2.0 | 20 | 1.2//2.5 | UM1-3 |
| 21M 12B | 4 | 3+-6.0 | 40+-20 | 1.0 | 2.5 | 40 | 1.2//2.5 | UM1-3X2 |
| 21M 12C | 6 | 3+-6.0 | 60+-20 | 2.0 | 3.0 | 65 | 1.6//2.0 | D2 |
| 21M 12D | 8 | 3+-6.0 | 80+-20 | 2.0 | 4.0 | 90 | 1.2//2.5 | D2 |
| 21M 15A | 2 | 3+-7.5 | 18+-25 | 0.5 | 1.5 | 20 | 1.5//2.0 | UM1-3 |
| 21M 15B | 4 | 3+-7.5 | 60+-25 | 1.0 | 2.0 | 40 | 1.5//2.0 | UM1-3X2 |
| 21M 15C | 6 | 3+-7.5 | 60+-25 | 2.0 | 2.5 | 65 | 1.5//2.0 | D2 |
| 21M 15D | 8 | 3+-7.5 | 80+-25 | 2.0 | 3.0 | 90 | 1.5//2.0 | D2 |
| 21F 15A | 2 | 3+-7.5 | 18+-25 | 0.5 | 1.5 | 20 | 1.5//2.0 | 49/T-3 |
| 21F 15B | 4 | 3+-7.5 | 40+-25 | 1.0 | 2.0 | 40 | 1.5//2.0 | 49T-3X2 |
| 21F 15C | 6 | 3+-7.5 | 60+-25 | 2.0 | 2.5 | 65 | 1.5//2.0 | D2 |
| 21M 20A | 2 | 3+-10 | 18+-34 | 0.5 | 1.5 | 20 | 2.2//1.0 | UM1-3 |
| 21M 20B | 4 | 3+-10 | 40+-34 | 1.0 | 2.0 | 40 | 2.2//1.0 | UM1-3X2 |
| 21M 30A | 2 | 3+-15 | 15+-50 | 0.5 | 1.5 | 20 | 3.0//0 | UM1-3 |
| 21M 30B | 4 | 3+-15 | 30+-45 | 1.0 | 2.0 | 40 | 3.0//0 | UM1-3X2 |
| 21M 15A | 2 | 3+-7.5 | 18+-25 | 1.0 | 2.0 | 20 | 1.5//2.0 | UM1-3 |
| 21M 15A1 | 2 | 3+-10 | 13+-43 | 1.0 | 2.0 | 20 | 1.5//2.0 | UM1-3 |
| 45M 15A | 2 | 3+-7.5 | 18+-28 | 1.0 | 2.0 | 40 | 3.0//-1.5 | UM1-3 |
| 45M 15B | 4 | 3+-7.5 | 40+-30 | 1.0 | 3.0 | 70 | 3.0//-1 | UM1-3X2 |
| 45M 30A | 2 | 3+-15 | 18+-32 | 1.0 | 2.0 | 40 | 8.0//-1.5 | UM1-3 |
| 45M 30B | 4 | 3+-15 | 30+-50 | 1.0 | 3.0 | 70 | 3.0//-1.5 | UM1-3X2 |
| 45M 15A | 2 | 3+-7.5 | 15+-25 | 1.0 | 2.0 | 40 | 0.65//5 | UM1-3 |
| 45M 15B | 4 | 3+-7.5 | 30+-25 | 1.5 | 3.0 | 70 | 0.65//3 | UM1-3X2 |
| 45M 30A | 2 | 3+-15 | 18+-35 | 1.0 | 2.0 | 40 | 1.2//1.5 | UM1-3 |
| 45M 30B | 4 | 3+-15 | 30+-50 | 1.5 | 3.0 | 70 | 1.2//1.0 | UM1-3X2 |
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