The Mini-Circuits ZHL-6A-S+ is a 50Ω RF gain block amplifier delivering 21 dB typical gain across 2.5 kHz to 500 MHz with excellent linearity and moderate power output. It combines +22 dBm output compression point with +34 dBm IP3, making it suitable for IF/RF systems requiring predictable performance across ultrawide bandwidth. Operating from +24 V DC at 0.350 A nominal, the module features ±1.2 dB gain flatness and is housed in a compact S32 chassis-mount package with SMA connectors.
Technical Specifications
• Frequency Range: 2.5 kHz to 500 MHz
• Gain: 21 dB typical; 25 dB maximum
• Gain Flatness: ±1.2 dB across operating band
• Output P1dB: +22 dBm typical
• IP3: +34 dBm typical
• Noise Figure: 9.5 dB typical at specified frequency
• Input VSWR: 1.8:1 typical
• Output VSWR: 2.0:1 typical (2.8:1 below 30 MHz)
• DC Supply: +24 V nominal; maximum +24.5 V
• Supply Current: 0.350 A nominal
• Maximum Input RF Power: +10 dBm (no damage)
• Operating Temperature: −20°C to +65°C
• Storage Temperature: −55°C to +100°C
• Impedance: 50Ω
• Case Style: S32, chassis mount
• Connectors: SMA
– Key Features
• Ultrawide bandwidth from 2.5 kHz enables HF through UHF coverage in single module
• High IP3 performance minimizes intermodulation products in crowded spectrum
• RoHS-compliant construction (indicated by + suffix)
• Protected by US Patent 6,943,629
– Typical Applications
• Communication systems and test equipment
• HF/VHF/UHF transmission and reception chains
• Laboratory instrumentation and signal conditioning
• Defense-grade RF subsystems
– Compatibility & Integration
The ZHL-6A-S+ operates from standard +24 V supplies. Note that RF output transient voltage reaches approximately 50% of supply voltage on turn-on; downstream equipment should include transient protection. Open-load operation is not recommended; maximum input power must be derated 20 dB under no-load conditions.
