Piezoelectric ceramic filter, 4KHz, 2KHz, ±12.5KHz, ±24KHz
| Parameter Name | Attribute value |
| Frequency | 455±2.0 |
| 3dB Band Width(KHz) | 4 |
| 6dB Band Width(KHz) | 2 |
| 40dB Band Width(KHz) | ±12.5 |
| 50dB Band Width(KHz) | ±24 |
| Stop Band Attenuation(dB) | - |
| Insertion loss | - |
| Ripple | - |

