Butterworth

Frequency Range from 500 Hz to 1 GHz

Butterworth Bandpass Filters offer a monotonic passband and stopband response. Available packages include PCB, radial RF pins, SMT, SMA and BNC connectorized cases. These are available for low frequency, 10-20 kHz RFID applications, RF and microwave applications including ADC and DAC low distortion testing, data acquisition, receivers and transmitters. Specify any center frequency from 500 Hz to 1 GHz.

Series Number Number of Pole Pairs (Elements) -3dBc Bandwidth Selection
KB3 3 (6) 3% to 25% fo
KB4 4 (8) 3% to 25% fo
KB5 5 (10) 3% to 25% fo
KB6 6 (12) 3% to 25% fo
KB7 7 (14) 5% to 25% fo
KB8 8 (16) 5% to 25% fo
KB9 9 (18) 5% to 25% fo

Part Number Derivation:

KB 6 *(T) **(R) -10.7M -535K -50 -720B
1 2 3 4 5 6 7 8

1) Series, KB

2) Number of poles, 6

*3) The “T” option specifies a filter with low THD for ADC/DAC testing. When selected therein, THD is > -80dBc, -96dBc typical.

**4) “R” RoHS compliant. Allow for longer lead time.

5) The Center Frequency, fo

6) The -3dBc passband bandwidth. It may also be specified as a percentage of fo. Thus, instead of 535 kHz, use 5P.

7) Terminations

8) Case selection from the case selection guide. “T” option cases are larger than standard.

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.