Dielectric Filters (DF) 3 or Multi-Pole
Dielectric Filters (DF) 3 or multi-pole range up to 5.8GHz. The dielectric technology based on ceramic material of high Dielectric Constant (K) has been contributing great size reduction of a mobile telecommunication equipment, especially cellular handset and base station. That is superior in electrical performances and reliability. Furthermore it has good mass productivity and low cost.
DeMint (DF) filters' highly sophisticated multi-pole design ensures high attenuation and good selectivity. The (DF) multi-pole series filter's small size (8.6 x 9.0 x 3.0 mm) means they require more less mounting space with a ripple of 1.0 dB max. Insertion loss is from 2.0 ~ 3.5 (dB) max. Center frequency range from 860 MHz to 5800 MHz with V.S.W.R 2.0 max.
Coaxial dielectric filter is the most popular and commercially successful technology. DeMint takes this advance technology to manufacture coaxial type duplexer. This features high unloaded Q, excellent high power performance, flexible design capability, size reduction, low profile, and lighter weight.
Surface mount multi-pole (DF) serise RF filter package is suitable for automatic pick and place equipment which assures mechanical stability and excellent lead coplanarity. Custom designs and tighter tolerances are available on request. Products conform to the RoHS directive.
DeMint will also produce devices outside these specifications to meet specific customer requirements, please contact our sales for more information.
Download complete PDF Dielectric Filters (DF) 3 or Multi-Pole.
Features :- MBP 42R Series.
- Murata DFC Series Compatible.
- Application for CT1, CT2, 900MH, 1.8GHz, 2.4G WLL Cordless phone.
| Dimensions (Unit: mm) (DF) | |
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| Typical Specifications (DF) | ||||||
| Part No. | Center Frequency (MHz) |
BandWidth (MHz) |
Insertion Loss (dB)max. |
Ripple in BandWidth (dB)max. |
V.S.W.R max. |
Attenuation (dB)min.(MHz) |
| DF43R860S20A | 860 | fo±10 | 3.0 | 0.8 | 2.0 | -25 at fo+30; -22 at fo-30 |
| DF43R1855S10A | 1855 | fo±5 | 3.5 | 1.0 | 2.0 | -30 at fo+100; -28 at fo-100 |
| DF43R950S20A | 950 | fo±10 | 3.5 | 0.8 | 2.0 | -40 at fo+30; -35 at fo-30 |
| DF44R3120S60A | 3120 | fo±30 | 3.0 | 1.0 | 1.5 | -58 at fo+355; -55 at fo-375 |
| DF45R1120S40A | 1120 | fo±20 | 2.5 | 1.0 | 2.0 | -50 at fo+50; -50 at fo-50 |
| DF33R815S20B | 815 | fo±10 | 2.5 | 0.8 | 2.0 | -18 at fo+40; -25 at fo-40 |
| DF33R1880S50B | 1880 | fo±25 | 3.5 | 1.0 | 2.0 | -40 at fo+150; -40 at fo-150 |
| DF23R1480S40C | 1480 | fo±20 | 2.5 | 1.0 | 2.0 | -20 at fo+150; -20 at fo-150 |
| DF23R1960S60C | 1960 | fo±30 | 2.0 | 1.0 | 2.0 | -20 at fo+200; -20 at fo-200 |
| DF23R2480S30C | 2480 | fo±15 | 2.5 | 1.0 | 2.0 | -20 at fo+250; -20 at fo-250 |
| DF23R5800S200D | 5800 | fo±100 | 2.0 | 1.0 | 2.0 | -5 at fo+400; -15 at fo-400 |
| Typical Characteristic (DF) | |
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| Order Codes (DF) | ||||||||||||||||||||||||||||||
| DF | 3 | 3R | 815 | S | 20 | B | ||||||||||||||||||||||||
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