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Passive filter, also known as LC filter, is a filter circuit designed by a combination of inductance, capacitance and resistance, which can filter out a certain or multiple harmonics.
Passive filter, also known as LC filter, is a filter circuit designed by a combination of inductance, capacitance and resistance, which can filter out a certain or multiple harmonics. The most common passive filter structure is to connect inductance and capacitance in series, which can form a low impedance bypass for the main harmonics (3, 5, 7).
Single-tuned filter, double-tuned filter and high-pass filter belong to passive filter.
※ The following are standard cases. All custom filter models in the catalog also have non-standard cases, please inquire for alternated specifications.
N.B.: P1D & P1J use M1.6mm bolts.
| Case | L(-0.1) mm | W(-0.1) mm | H(-0.1) mm | a(+/- 0.1) mm | b(+/- 0.1) mm | c(+/- 0.1) mm | |
| P1 | P1A | 30.0 | 12.0 | 10.0 | 25.0 | 27.0 | 9.0 |
| P1B | 40.4 | 12.0 | 10.0 | 35.4 | 37.4 | 9.0 | |
| P1D | 50.9 | 9.5 | 9.5 | 46.1 | 48.2 | 6.9 | |
| P1J | 40.4 | 9.5 | 9.5 | 35.4 | 37.4 | 6.9 | |
| P2 | A01 | 20.3 | 10.2 | 10.2 | 15.0 | — | 5.0 |
| P2B | 27.2 | 12.6 | 6.7 | 20.3 | — | 7.6 | |
N.B.: RF connectors are 5mm from the bottom when C1 & C3 use SMA connectors;
RF pins are 2.75mm from the bottom when C1 & C3 use f0.8mm pin; C1D & C1J use M1.6mm bolts.
| Case | L(-0.1) mm | W(-0.1) mm | H(-0.1) mm | a(+/- 0.1) mm | c(+/- 0.1) mm | |
| C1 | C1A | 30.0 | 12.0 | 10.0 | 27.0 | 9.0 |
| C1B | 40.4 | 12.0 | 10.0 | 37.4 | 9.0 | |
| C1D | 50.9 | 9.5 | 9.5 | 48.2 | 6.9 | |
| C1J | 40.4 | 9.5 | 9.5 | 37.4 | 6.9 | |
| C3 | C3A | 30.0 | 12.0 | 10.0 | 25.5 | 16.5 |
| C3B | 40.4 | 12.0 | 10.0 | 35.9 | 16.5 | |
※ LC filter cases specifications
| Case | Frequency Range | Number of Sections |
| A01：20.3*10.2*10.2 | 100MHz-5000MHz | 5 |
| P2B：27.2*12.6*6.7 | 100MHz-5000MHz | 5 |
| 30.0*12.0*10.0 | 60MHz-5000MHz | 5 |
| 40.4*12.0*10.0 | 40MHz-5000MHz | 7 |
| 40.4*9.5*9.5 | 60MHz-5000MHz | 8 |
| 50.9*9.5*9.5 | 30MHz-5000MHz | 8 |
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