Frequency Range from 100 Hz to 200 MHz

Bessel Lowpass Filters exhibit a maximally flat time delay through the filter’s passband. This series is available for any -3dB frequency from 100 Hz to 200 MHz covering most RF and microwave applications. Packages include PCB radial pins, SMT, SMA and BNC connectorized configurations.

Series No. No. of Poles
LT3 3
LT4 4
LT5 5
LT6 6
LT7 7
LT8 8
LT9 9
LT10 10

Part Number Derivation:

LT 9 *(R) -144K -50 -1335
1 2 3 4 5 6

1) Series, LT

2) Number of poles, 9

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

4) f-3dBc

5) Terminations

6) Case selection from the case selection guide.


Operating Temperature Range:
0°C to +70°C

VSWR: 1.5:1 Typical

Input Power: 20 mW

All of TTE’s products are “made in the USA”.  All products are custom-built and made to order.  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 for assistance.  More information about TTE’s custom design expertise is provided in Capabilities.