FURSE_Lightning signal devices ESP_ESP RF 111A11、ESP RF AA1A11、ESP RF 441A11
Product No：Pro200941423223
Product Model：ESP RF 111A11、ESP RF AA1A11、ESP RF 441A11
UpdateTime：2010.06.03
Views：1978
Suitable for RF systems using coaxial cables at frequencies between 50 MHz and 2.7GHz. Effective protection without impairing system performance. Suitable for power up to 150W.
For coaxial (or twisted pair) CCTV lines use the ESP CCTV models. For coaxial ethernet lines use the ESP Thin/ThickNet models and for CATV systems using the F connector the ESP CATV/F.
Application
Use on coaxial cables to protect RF transmitter and receiver systems, including electronics located at the antenna or dish. Typical examples include cell sites, military communications, satellite earth stations, pager systems and emergency services communications systems.
Features and benefits
Restricts let-through voltage to below the damage levels of interface circuitry.
Superior transient protection to both gas Discharge Tube (GDT) and Quarter Wave Stub (QWS) based protectors.
Provides repeated protection in lightning intense environments.
Low attenuation and near unity Voltage Standing Wave Ratio (VSWR) over a wide range of frequencies ensure the protectors do not impair system performance.
Wide bandwiidth means a single product is suitable for a range of applications.
Available with N, 7/16 DIN and BNC connectors.
Easily mounted and earthed via via fixtures on the base of the unit that accept M3 and M5 screws.
Additional mounting plates - ESP RF BK1 (straight) and ESP RF BK2 (90deg angled) - give increased flexibility in mounting methods.
Robust metal housing.
ESP RF 111A11 installed on a coaxial cable running between an antenna and an RF receiver.
Installation
In a building, connect in series with the coaxial cable near where it enters or leaves the structure, or close to the equipment being protected. This should be close to the system s earth star point (to enable a good connection to earth). On a mast, connect in series with the coaxial cable near the antenna /dish being protected. Install in a radio communications room, an existing cabinet or suitable enclosure.
Suitable Accessories
Additional mounting plates - ESP RF BK1 (straight) and ESP RF BK2 (90deg angled) - are available.
Electrical specification
| ESP RF 111A11 | ESP RF AA1A11 | ESP RF 441A11 | |
| Maximum working voltage (RMS) | 86V | 86V | 86V |
| Characteristic impedance | 50ohms | 50ohms | 50ohms |
| Bandwidth | 50-2700MHz | 50-2700MHz | 50-2700MHz |
| Voltage standing wave ratio | <1.2 | <1.2 | <1.2 |
| Insertion loss over bandwidth | 0.2dB | <0.2dB | 0.2dB |
| Maximum power | 150W | 150W | 150W |
Transient specification
| ESP RF 111A11 |
ESP RF AA1A11 |
ESP RF 441A11 | |
| Let-through voltage (all conductors)1 5kV, 10/700μs test to: BS 6651:1999 Appendix C, Cat C-High ITU (formerly CCITT) IX K17 |
20V | 20V | 20V |
| Maximum surge current2 |
10kA | 10kA | 10kA |
1 The maximum transient voltage let-through the protector throughout the test (+/-10%). Response time <10ns. This let-through voltage represents a deviation from the applied signal voltage , present at the time of the test.
2 Tested with 8/20μs waveshape to ITU (formely CCITT), BS 6651:1999 Appendix C.
Mechanical specification
| ESP RF 111A11 | ESP RF AA1A11 | ESP RF 441A11 | |
| Temperature range | -25°C to +70°C | -25°C to +70°C | -25°C to +70°C |
| Connection type | N female | 7/16 DIN female | BNC female |
| Earth connection | Via mounting fixtures | Via mounting fixtures | Via mounting fixtures |
| Finish | Silver | Silver | Silver |
| Weight -unit -packaged |
150g 180g |
240g 270g |
120g 150g |
Download：
ESP RF_01.pdf ESP RF_02.pdf