Mini-circuits ZFL-500

The Mini-Circuits ZFL-500 is a fixed-gain, wideband RF amplifier module housed in a rugged shielded case for signal amplification across 50 kHz to 500 MHz. Designed for 50 Ω systems, it delivers consistent gain and low noise performance across laboratory, instrumentation, and communications applications. Multiple variants accommodate different performance requirements—from low-noise to high-linearity configurations—with SMA or BNC connector options.

– Technical Specifications

Frequency & Impedance
• Operating frequency: 50 kHz to 500 MHz
• System impedance: 50 Ω

Gain & Flatness
• Typical gain: 9 dB (standard model); 24 dB (ZFL-500LN); 25 dB (ZFL-500+)
• Gain flatness: ±1.0 dB typical

Output Power & Linearity
• P1dB: +9 dBm (standard); +5 dBm (ZFL-500LN); +16 dBm (ZFL-500HLN)
• IP3: +18 dBm (standard); +14 dBm (ZFL-500LN); +30 dBm (ZFL-500HLN)

Noise Figure
• 5.3 dB, 4.2 dB, 2.9 dB (ZFL-500LN), or 3.8 dB (ZFL-500HLN) typical

Impedance Matching
• Input/Output VSWR: 1.3:1 to 2.0:1 typical (variant dependent)

Power Supply
• Nominal: 15 V DC
• Current: 60 mA (ZFL-500LNB-BNC+); 80 mA (ZFL-500+); 110 mA (ZFL-500HLN+)
• Maximum voltage: +17 V DC

Environmental
• Operating temperature: −20°C to +71°C
• Storage temperature: −55°C to +100°C

– Key Features

• Compact Y460 form factor: 1.25″ × 1.25″ × 0.75″ (31.75 × 31.75 × 19.05 mm)
• Weight: approximately 38 grams
• Multiple gain and noise configurations available
• Connector options: SMA or BNC
• Wide operational bandwidth for VHF/UHF coverage

– Typical Applications

• Small-signal instrumentation and laboratory measurement systems
• VHF/UHF communications infrastructure
• Test equipment front-end amplification
• System gain blocks in receiver chains

– Compatibility & Integration

Available with SMA or BNC connectors. Select the appropriate variant (standard ZFL-500, low-noise ZFL-500LN, or high-linearity ZFL-500HLN) based on noise figure and IP3 requirements for your system architecture.