Polyphaser AL-LSXM RF Coaxial High Pass Filter Protector 2.0 to 6.0Ghz N-Female

The PolyPhaser AL-LSXM is a Type N Female-to-Female bulkhead coaxial RF surge protector engineered for high-frequency installations operating between 2.0 GHz and 6.0 GHz. Designed around a DC-shorted filter architecture, the AL-LSXM blocks DC continuity between center pins, making it the right choice for antenna and radio deployments where DC voltage must not pass through the coaxial cable. With a surge current rating of 10 kA, a let-through energy of just 0.5 μJ, and an IP67 weatherproof enclosure, it delivers robust transient and lightning surge suppression for outdoor-exposed infrastructure. The elongated female connector body allows direct mounting through a standard 1/4-inch bulkhead panel or grounding bar, simplifying installation in equipment shelters, rooftop enclosures, and tower-top junction boxes. Insertion loss of no more than 0.1 dB ensures the protector introduces virtually no degradation to signal integrity across its full operating band. The AL-LSXM carries REACH and RoHS compliance and is built for multi-strike service life in critical communications systems.

Key features & benefits

• 2.0–6.0 GHz High-Pass Filter Design — The AL-LSXM passes RF signals from 2,000 MHz to 6,000 MHz while suppressing DC and low-frequency transients, covering a broad swath of microwave bands used in point-to-point links, cellular infrastructure, and wireless broadband applications.
• DC-Shorted Filter Architecture — There is no DC continuity between the input and output center pins. This design choice actively clamps DC surge energy and is purpose-built for coaxial runs where DC power injection or remote powering is not required.
• 10 kA Surge Current Capability — Rated to handle surge currents up to 10 kA, the AL-LSXM is suited for installations exposed to direct or indirect lightning events, providing high-confidence protection for downstream radio and network equipment.
• Minimal Signal Degradation — Insertion loss is specified at ≤ 0.1 dB across the operating band, ensuring that the protector does not measurably impact link budget, receiver sensitivity, or system noise figure in precision RF chains.
• 0.5 μJ Let-Through Energy — The extremely low let-through energy rating of 0.5 μJ means only a negligible amount of transient energy can pass to connected equipment, protecting sensitive RF amplifiers, modems, and radios from even fast-rise transient events.
• IP67 Weatherized Enclosure — An IP67-rated housing provides complete dust ingress protection and withstands temporary immersion in water, making the AL-LSXM fully suitable for exposed outdoor mounting on towers, rooftops, and exterior walls without additional weatherproofing.
• Type N Female Bulkhead Connectors, In and Out — Both the input and output ports use Type N female connectors in a bulkhead configuration. The elongated female connector body accommodates mounting directly through a 1/4-inch bulkhead panel or grounding bar, establishing a clean RF ground bond at the enclosure boundary.
• 10 W Power Handling — A maximum continuous RF power rating of 10 W accommodates the transmit power levels typical of point-to-point radios and access points deployed in the 2–6 GHz range without risk of thermal damage to the protector.
• Multi-Strike Capability — The AL-LSXM is engineered to survive and remain operational after multiple surge events, reducing maintenance interventions and replacement cycles in high-exposure deployments.
• REACH and RoHS Compliance — Full REACH and RoHS compliance supports procurement requirements for regulated industries, government contracts, and international deployments where material restriction standards must be documented.