FPH - Fine, Multi-Stage Protection for HEMP and LEMP Surge
The FPH Series provides advanced High-Altitude Electromagnetic Pulse (HEMP) and Electromagnetic Pulse (EMP) protection for mission-critical communication systems. Designed to meet MIL-STD-188-125-1/2, MIL-STD-461, and MIL-STD-464 standards, these arrestors protect sensitive electronics from extremely fast, high-energy transient events. Each unit ensures reliable protection without compromising signal integrity, offering ultra-low let-through energy (<5V) and excellent RF performance up to 18 GHz.
FPH arrestors employ a high-speed suppression design with minimal insertion loss, making them ideal for systems where RF transmission quality and transient protection must coexist. Available in Type N, TNC, and SMA connector types, the series supports a wide range of voltage and polarity options (6V, 12V, 24V DC pass) and delivers broad RF power handling from 20 dBm to 1 kW. Their IP68-rated housings and MIL-STD-202-tested durability provide proven resilience in demanding military, aerospace, and defense applications.
FPH Fine Protector (HEMP) Features and Benefits:
- Meets MIL-STD-188-125-1/2, MIL-STD-461, and MIL-STD-464
- Protection from HEMP, NEMP, IEMI, HIRF, and ESD threats
- Fast-response suppression with minimal let-through voltage (<5V @3kA)
- Frequency range options from DC to 18 GHz
- RF power handling up to 1 kW, depending on model
- Temperature range: –50°C to +85°C
- Environmental compliance: Salt Fog, Immersion, Moisture Resistance, Temperature Shock, and Vibration (MIL-STD-202)
- IP68-rated dust and water protection for long-term field reliability
*example product shown
Connector Types
- N-Type
- SMA
- TNC
Frequency Range
- 1 – 40 MHz
- 30 – 500 MHz
Threat Types
- HEMP
- NEMP
- HIRF
- IEMI
- ESD
Design Highlights
- VHF and UHF Protection
FPH Fine Protector HEMP Applications
The FPH Series from NexTek is built for high-reliability defense, aerospace, and communication platforms requiring protection from high-speed transient phenomena. These protectors are deployed in:
- Command and control centers and shielded facilities (TEMPEST/EMP hardening)
- Satellite ground stations and critical RF uplinks
- Military communications networks and mobile shelters
- Test labs and EMP simulation environments
FPH Fine Protector HEMP Products
The FPH Series includes multiple connector and frequency configurations optimized for different system architectures and protection levels. Each model is engineered for precise transient suppression, ensuring consistent compliance with HEMP and EMP mitigation standards.
Available models include:
- FPHTFTFJBF0-B – TNC female-to-female HEMP arrestor for 125 MHz–512 MHz, IP67-rated, bi-directional
- FPHTFTFJBE0-B – TNC female-to-female HEMP arrestor for 125 MHz–512 MHz, IP67-rated, extended endurance version
- FPHTFTFJBB0-B – TNC female-to-female HEMP arrestor with broader frequency handling and low loss
- FPHTFTFJAE0-B – TNC female-to-female HEMP protector for 225 MHz–400 MHz with high pulse current rating
- FPHTFTFJAB0-B – TNC female-to-female HEMP suppressor for 225 MHz–400 MHz, compact format
- FPHTFSFJBF0-B – SMA female-to-female HEMP arrestor for 125 MHz–512 MHz, bi-directional protection
- FPHTFSFJBE0-B – SMA female-to-female HEMP arrestor, extended performance for critical frequency bands
Explore the full lineup and datasheets on the FPH Series product page.
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