Citel P8AX09-716/FF SPD, RF coaxial, radio DC-4GHz, 25W, 5kA

Product Overview

The P8AX09-716/FF is a coaxial surge protection device utilizing gas discharge tube technology for RF transmission line protection from lightning strikes and electrical transients. Operating from DC to 3.5 GHz with 7/16 female-to-female connectors, this IP65-rated unit provides 20 kA discharge capacity, supports 72 VDC pass-through, and maintains less than 0.2 dB insertion loss with replaceable GDT cartridge for outdoor applications.

Key Features:

• Gas Discharge Tube Technology: Ultra-low capacitance GDT element diverts surge currents while maintaining signal integrity with greater than 10 gigaohms isolation resistance and VSWR less than 1.2:1 for optimal RF performance.
• Broadband Performance: DC to 3.5 GHz frequency range with insertion loss less than 0.2 dB and return loss greater than 20 dB ensures minimal signal degradation across cellular, microwave, and broadband applications.
• Replaceable Module Design: Field-replaceable gas discharge tube cartridge enables quick maintenance without unit replacement, reducing downtime and operational costs.
• DC Pass-Through: Supports up to 72 VDC power delivery via coaxial cable for remote amplifiers and active equipment in single-cable installations.
• Bidirectional Protection: Common-mode surge protection from either direction with 20 kA maximum, 1 kA nominal, and 5 kA impulse discharge capacity.
• Outdoor-Rated Construction: IP65 brass housing with specialized plating withstands -40°C to +85°C operation in harsh environmental conditions.
• Flexible Grounding: Integrated grounding screw, mounting bracket compatibility, and bulkhead installation options accommodate diverse deployment requirements.
• Failsafe Protection: Short-circuit disconnection with transmission interrupt prevents downstream equipment damage during catastrophic failures.

Technical Specifications:

• Article Number: 60411
• Technology: Gas Discharge Tube (GDT), BBHF-90V reference
• Frequency Range: DC to 3.5 GHz
• Maximum DC Operating Voltage: 72 VDC
• Impedance: 50 ohms
• Connector Type: 7/16 Female/Female (FF) feedthrough
• Maximum Discharge Current (Imax): 20 kA (8/20 µs)
• Nominal Discharge Current (In): 1 kA
• Impulse Current (Iimp): 5 kA (10/350 µs)
• DC Spark-Over Voltage: <650 V
• Insertion Loss: <0.2 dB
• Return Loss/Isolation: >20 dB
• VSWR: <1.2:1
• Maximum Continuous Current: 10 A
• Power Rating: 25 W average, 300 µJ energy
• Housing Material: Brass with Cu-Zn-Sn plating
• Contact Material: Bronze with Au-Ag plating
• Operating Temperature: -40°C to +85°C
• Enclosure Rating: IP65

Compatible Accessories:

• P8AX09-716/MF - 7/16 Male/Female variant
• P8AX09-N/FF (60011) and P8AX09-N/MF - N-type connector options
• P8AX09-T/FF - TNC Female/Female configuration
• P8AX09-SMA/FF - SMA Female/Female version
• P8AX25-716/MF - 190W higher power model
• P8AX50-716/FF - 780W heavy-duty model
• BK-SMA Mounting Bracket - Installation and grounding accessory

Compliance & Certifications:

• IEC 61643-21 / EN 61643-21 certified
• UL497E compliant

Applications:

This surge protector provides first-line defense for antenna systems, cellular base stations, microwave links, broadband wireless infrastructure, two-way radio installations, GPS equipment, distributed antenna systems, telecommunications towers, remote radio heads, point-to-point and point-to-multipoint wireless networks, weather monitoring stations, broadcast facilities, and outdoor RF applications requiring protection against lightning strikes, induced surges, switching transients, and electromagnetic interference in harsh environmental conditions.