30-520MHz 40DB SMD-Directional Coupler

30–520 MHz, 40 dB SMD Directional Coupler

Overview :

A surface-mount directional coupler designed for broadband RF monitoring and signal sampling across 30–520 MHz. Offers precise forward/reverse isolation, stable coupling over frequency, and compact SMD packaging for integration into modern RF systems where space and performance matter.

Key Specifications :

• Frequency range: 30–520 MHz

• Coupling factor: 40 dB ±1.0 dB (typical tolerance; specify tighter tolerance options if required)

• Isolation: ≥30 dB (typical; frequency dependent)

• Directivity: ≥20 dB (typical)

• Insertion loss (through path): ≤0.5 dB (excluding coupling loss)

• Return loss (input/through): ≥18 dB typical

• Power handling: up to 2 W average (specify higher-power versions for transmit applications)

• Impedance: 50 Ω

• Temperature range: −40 °C to +85 °C (standard)

• Package: SMD (surface-mount) compact footprint; RoHS compliant

• Connector interface: SMD pads for PCB reflow (custom pad layout drawings available)

Features & Benefits :

• Wideband coverage: Single coupler supports VHF through low-UHF bands (30–520 MHz), minimizing BOM complexity.

• High coupling (40 dB): Enables safe, low-impact sampling for receivers, monitoring equipment, spectrum analyzers, and test instrumentation without disrupting the main signal path.

• Compact SMD form factor: Optimized for automated assembly and high-density RF modules.

• Stable performance: Low drift in coupling and return loss across temperature and frequency for reliable monitoring and calibration.

• Robust design: RoHS-compliant materials and industrial temperature rating for use in commercial and ruggedized applications.

• Customization: Available variations include tighter coupling tolerance, extended power handling, alternative frequency ranges, and different pad layouts for PCB integration.