The HFCN-4400D+ is a high-performance ceramic high-pass filter designed for applications requiring precise frequency selection. It features a small size, 5 sections for excellent filtering, temperature stability, and robust power handling capabilities up to 7W. Constructed with LTCC technology and hermetically sealed, this low-cost filter is ideal for sub-harmonic rejection in transmitters and receivers.
| Parameter | Frequency (MHz) | Min. | Typ. | Max. | Units | Notes |
| Stop Band Rejection | 3600 | 30 | dB | 1 | ||
| Stop Band Rejection | 3500 | 20 | dB | 1 | ||
| Freq. Cut-Off | 4400 | 3.0 | dB | 1, 2 | ||
| VSWR | 3500-3600 | 20 | :1 | 1 | ||
| Pass Band Insertion Loss | 5000-10100 | 2.0 | dB | 1, 2 | ||
| Pass Band Insertion Loss | 5000-9900 | 1.5 | dB | 1, 2 | ||
| VSWR | 4600-10100 | 1.5 | :1 | 1, 2 | ||
| Operating temperature | -55 | +100 | C | 3 | ||
| Storage temperature | -55 | +100 | C | 3 | ||
| RF Power Input | 25C | 7 | W | 3 | ||
| Max. DC Voltage at pins 1&3 | 25 | VDC | 3 |