Omrdon Technology 
OMS-N-SMA/KK/3.0,20KA,DC-3.0GHz,DC-Pass,N to SMA Coaxial Antenna Lightning Arrester (Feeder Lightning Arrester, Base Station Antenna Lightning Arrester)
Products::
OMRDON OMS-N-SMA/KK/3.0 , N to SMA Antenna Surge Protector is a high-performance surge protector (SPD) designed for modern wireless communication systems. The product provides reliable protection against induced lightning strikes for all types of RF signal transmission paths, effectively suppresses surge overvoltage introduced by the feeder, and guarantees the safe and stable operation of the antenna and back-end sensitive equipment.
This lightning protector adopts GDT protection technology and low-loss design, providing strong lightning discharge capacity (maximum 20KA) while ensuring excellent signal transmission quality, the working band covers 0-3.0GHz, and it can be widely used in 5G base stations, satellite communications, microwave transmission, wireless monitoring and all kinds of fixed/mobile communication base stations. The product complies with GB/T18802.21 and IEC61643-21 lightning protection standards, with IP67 protection level and wide temperature operating characteristics, it is the ideal choice to build a complete lightning protection zoning system from LPZ0A-1 to the front end of the equipment.
Functional Features::
- High lightning current capabilityMaximum discharge current up to 20KA (8/20μs), reliably discharging the lightning current.
- Wide bandwidth and low lossSupport 0-3.0GHz frequency range, VSWR ≤1.2, insertion loss ≤0.2dB, to ensure the quality of signal transmission.
- Fully sealed waterproof design: Enclosure protection class IP67, adapted to harsh outdoor environments.
- Multiple interfaces availableN型连接器：Standard N-type connector to SMA@KK female/female ( female to female)
- DC-capable馈电:: DC-Pass
- international certification RoHS, CE, FCC
typical application::
- Mobile communication base stations (4G/5G, SCT, CDMA, PHS)
- Satellite receiving stations, microwave links
- Wireless Monitoring Transmission System
- Radar and GPS navigation base stations
- Radio and television signal towers
Technical Parameters
| model number | oms-n-sma/kk/3.0 |
| Nominal discharge current (In) | 10 KA (8/20μs) |
| Maximum discharge current (Imax) | 20 KA (8/20μs) |
| Reaction time (Ta) | ≤100 ns |
| Maximum transmission power Pt | 150 Watts |
| VSWR | ≤1.2 |
| DC breakdown voltage (100V/s) | 90/230/350/600 Volts |
| Maximum pulse voltage (1KV/μs) | 650/700/750/800 Volts |
| characteristic impedance | 50Ω |
| insertion loss | ≤0.2 dB |
| frequency range | DC-3.0 GHz |
| Insulation impedance | ≥1GΩ |
| interface method | N to SMA@KK (Femaleto Female) |
| Housing Material | Brass@Nickel Plated/Ternary Alloy |
| Ground resistance and wire diameter | ≤4Ω /≥4mm2 |
| sizes | 55*21.5mm |
| Operating Temperature Range | -40 ~ +85℃,altitude ≤4km |
| Relative air humidity | 30%~90% |
| Protection class (IP) | IP67 |
| Compliance Certification | CE, RoHs,FCC,IP67,ISO9001-2015 |
| Implementation standards | gb18802.21/lec61643-21/iec60169-4/iec60068-2-52 |
| item number | 8004391 |
Typical Performance Test Data
Simulated Lightning Impact Test
20KA@8/20μs
Product Dimension Drawing
Installation Diagram Reference
Installation and Maintenance Guide Installation Recommendations
1. In order to strengthen the lightning protection effect, it is recommended to connect an antenna lightning protector in series with each of the antenna outputs and equipment inputs.
2. The grounding wire should be as short as possible, with a cross-sectional area of not less than 4mm² and a grounding resistance of not more than 4Ω, and ensure a reliable connection with the lightning protection grounding bus.
3. Although this product is IP67 rated, it is recommended that it be protected from rain when installed outdoors to avoid prolonged rain intrusion.
Maintenance Description.
● This product is a maintenance-free type of lightning protector. If an abnormality occurs in the communication system, the lightning protector can be temporarily removed for testing;
●If the system returns to normal, it means that the lightning arrester has been damaged, so please replace it promptly.
