7H4L Series catalog (75 ohm)
The 75ohm product series developed based on the standard 7H Filter series, which enable to completely convert from the 50ohm 7H series to 75ohm without changing the performance.
Temwell design and develop 4POLE RF Helical Bandpass Filter as 7HL4 Series.
Based on 75 ohm, the 7HL-4POLE series provides +10dB Rejection optimization value, and completely transfers the parameters and customization services of the 7H-4POLE series. The detailed item description is as following.
Based on 75 ohm, the 7HL-4POLE series provides +10dB Rejection optimization value, and completely transfers the parameters and customization services of the 7H-4POLE series. The detailed item description is as following.
*Center Frequency range: 42 ~ 1500MHz
*Bandwidth range: 2 ~ 120MHz
*Impedance: 75ohm
*Attenuation value: 20~30dB
Custom spec value service is available based on all standard P/N, including Frequency change, BW change, Attenuation value upgrading, Size change, Pin position change, and connectorized model, etc. You can select the item with the filter value closest to the requirement from each catalog of 7HL for in-depth customized service. It is also possible to directly select and develop from various catalogs of 7H series.