Mini-circuits ZHL-2-SMA

The Mini-Circuits ZHL-2-SMA is a 50-ohm coaxial amplifier spanning 10 MHz to 1000 MHz, engineered for wideband signal amplification in test and communications systems. SMA connectors ensure compatibility with standard RF infrastructure. This medium-high power device delivers consistent gain across its operating band with manageable noise characteristics, making it suitable for VHF/UHF measurement and system-level applications where predictable amplification is required.

– Technical Specifications

• Frequency Range: 10 MHz to 1000 MHz
• Impedance: 50 Ohms
• Connectors: SMA
• Gain: 16 dB to 34 dB (varies by model variant); gain flatness ±0.8 dB across band
• Output Power: P1dB approximately +29 dBm; P3dB +30 dBm
• Third Order Intercept (IP3): +38 dBm to +42 dBm
• Noise Figure: 1.0 dB to 9.0 dB (varies by model)
• VSWR (Input/Output): 2.0:1 / 2.1:1
• DC Supply: 24 VDC at 0.6 A
• Input RF Power (No Damage): +15 dBm maximum
• Operating Temperature: -20°C to 65°C
• Storage Temperature: -55°C to 100°C

– Key Features

• T34 case style housing with compact footprint (4.75″ × 2.00″ × 2.12″)
• Weight approximately 440 g with heatsink
• External heatsinking required; recommended thermal resistance 1.2 to 1.35°C/W
• Baseplate temperature must be limited to 65°C maximum for reliable operation
• Open-load operation not recommended; derate maximum input power by 20 dB with no load
• Suitable for -20°C to 65°C field and lab deployment

– Typical Applications

• VHF/UHF system amplification
• Test and measurement signal chain stages
• Communication system RF front-ends

– Compatibility & Integration

Standard 50-ohm SMA connectors enable direct integration into existing RF test benches and systems. User-supplied heatsinking is mandatory. DC supply requires 24 VDC at 0.6 A regulated source.