---
lang: "en"
title: "RF Surge Arrester"
sku: "A-RFLA-SMSF-070"
canonical_url: "https://shop.marcomweb.it/en/protections/rf-surge-arrester"
brand: "MARCOM S.r.l."
end_of_life: "false"
---

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A-RFLA-SMSF-070: Bidirectional RF lightning protection for SMA F/M type interfaces; DC – 7 GHz

The A-RFLA-SMSF-070 RF lightning arrester is an outdoor protection device designed to safeguard connected equipment from potential damage caused by lightning surges and induced overvoltages. The RFLA lightning arrester diverts high-voltage surges away from sensitive equipment, allowing for safe discharge to the ground. This is particularly important for outdoor antennas, which are often mounted at the highest point of an area and therefore more susceptible to lightning strikes. The A-RFLA-SMSF-070 lightning arrester is a bidirectional RF device capable of protecting against surges from both directions (from the antenna to the equipment and vice versa). This ensures comprehensive protection for all connected devices.

## Technical Specifications

- Frequency Range: DC – 7 GHz
- Connector Impedance: 50 Ohm
- Nominal DC Voltage: 230 Volt
- Operating Voltage: ≤1000 Volt RMS, 50 Hz at sea level
- Maximum Impulse Discharge Current: 10 KA
- Input Connector: SMA Female
- Output Connector: SMA Male
- Temperature Range (Storage/Operating): -45°C to +80°C
- Relative Humidity: ≤95%
- Dimensions: 55 x 25 x 39 mm
- Weight: 85 g

#### Areas of Application

- Telecommunication Infrastructures: Protection of communication towers, base stations (BTS), microwave radio links, and other elevated network structures.
- Broadcasting and Media Facilities: Safeguarding transmission towers, relay points, and studio equipment from surge events.
- Wi-Fi Installations and Wireless Networks: Ensuring stable operation for outdoor access points, point-to-point radio links, and wireless distribution systems.
- Rural Connectivity Sites: Ideal solution for remote communication towers, small-cell installations, and community network nodes located in open terrain and subject to high lightning activity.
- Renewable Energy Systems: Applicable to solar farms, wind farms, and hybrid energy systems, where arresters protect inverters, monitoring units, and metallic support structures.
- Industrial and Utility Sites in Open Areas: Includes electrical substations, pumping stations, agricultural facilities, and other installations where the presence of tall or isolated structures increases vulnerability to lightning.

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Source: https://shop.marcomweb.it/en/protections/rf-surge-arrester

MARCOM S.r.l. — a trusted supplier for industrial automation and building automation.