- Tier Trap Filters
- Features :
* CE Approved, Class A RFI Shielding
* SMD, High Stability
* High Rejection
* Low Loss
* Excellent Return Loss
* Waterproof (alternative)
* Patented Housing
* Suitable for CATV and
other communication systems
Tier trap filters have two passbands, one on each side of the reject band. They are used for filtering out some channels in CATV reception systems or for application in other communication systems.
Soontai's tier trap filters have many features (see below).
1. Sharp and deep reject band, provides excellent rejection capabilities to
clear undesired signal.
2. Lowest insertion loss, signal-through-loss reduced to a minimum.
3. Excellent return loss, good impedance match reduces signal loss to
keep the signal clean (see figure).
4. Dual layer copper tubes provide the best electromagnetic interference(EMI) protection.
The table below shows popular TTF series filter models.
We can design other models according to your specifications.
For more filter infomation please see the filter profile technical notes in our Tech Support.
Custom filters or more details on inquires, please refer to Custom Filters.
| Model | Stop Band | Model | Stop Band |
| TTF - 20-42 | 20 - 42 MHz | TTF - 265-279 | 265 - 279 MHz |
| TTF - 88-108 | 88 - 108 MHz | TTF - 374-390 | 374 - 390 MHz |
| TTF - 112-126 | 112 - 126 MHz | TTF - 415-481 | 415 - 481 MHz |
| TTF - 118-174 | 118 - 174 MHz | TTF - 454-470 | 454 - 470 MHz |
| TTF - 195-209 | 195 - 209 MHz | TTF - 526-544 | 526 - 544 MHz |