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| PartNumber | KFF6637 | KFF6637C | KFF6637EG1 |
| Description | DUPLEXER | FILTER CERAMIC | |
| Manufacturer | Tusonix a Subsidiary of CTS Electronic Components | - | - |
| Product Category | Ceramic Filters | - | - |
| Series | - | - | - |
| Packaging | Tape & Reel (TR) | - | - |
| Package Case | Monoblock, 3 PC Pad | - | - |
| Frequency | 1.88GHz Center | - | - |
| Impedance | 50 Ohm | - | - |
| Mounting Type | Surface Mount | - | - |
| Size Dimension | 1.113" L x 0.157" W (28.27mm x 4.00mm) | - | - |
| Bandwidth | 60MHz | - | - |
| Height Max | 0.262" (6.65mm) | - | - |
| Insertion Loss | 3.6dB | - | - |