Bessel
Frequency Range from 500 Hz to 200 MHz
Bessel Bandpass Filters exhibit a constant time delay through the filters passband. Available packages include PCB, radial RF pins, SMT, SMA and BNC connectorized cases. These are available for RF and microwave applications including data acquisition, receivers and transmitters. Specify any center frequency from 500 Hz to 200 MHz.
| Series Number | Number of Pole Pairs (Elements) | Bandwidth Selection -3dBc |
|---|---|---|
| KT2 | 2 (4) | 3% to 10% fo |
| KT3 | 3 (6) | 3% to 10% fo |
| KT4 | 4 (8) | 3% to 10% fo |
| KT5 | 5 (10) | 3% to 10% fo |
| KT6 | 6 (12) | 3% to 10% fo |
Part Number Derivation:
| KT | 4 | *(R) | -144K | -4.32K | -50 | -3264 |
| 1 | 2 | 3 | 4 | 5 | 6 | 7 |
1) Series, KT
2) Number of poles, 4
*3) “R” RoHS compliant. Allow for longer lead time.
4) The Notch Frequency, fo
5) The -3dBc passband bandwidth. It may also be specified as a percentage of fo. Thus, instead of 4.32 kHz, use 3P.
6) Terminations
7) Case selection from the case selection guide.
Notes:
Operating Temperature Range:
0°C to +70°C
VSWR at fo: 1.5:1 Typical
Input Power: 20 mW
All of TTE’s products are “made in the USA”. Most are delivered within 2 weeks. Expedited lead times of 3-5 days are available on many products. Please call 1-716-532-2234 (or 1-310-478-8224) or email tte@tte.com for assistance. More information about TTE’s custom design expertise is provided in Capabilities.
