This document provides a technical description and application details of the 0° Divider/Combiner PDF-2A-250 SQ produced by Merrimac Industries. The product is space qualified and operates in the frequency range of 10-500 MHz. It features a special lumped element design to reduce size while maintaining high performance. The PDF-2A-250 SQ offers excellent isolation, insertion loss, amplitude balance, and phase balance. It has a VSWR of 1.3:1 and can handle a maximum input power of 1 W. The device is designed in accordance with Merrimac document CENG-0001, “Standard Design Requirements for Space Qualified Devices”.
The PDF-2A-250 SQ is a 2‑way power divider/combiner designed with a lumped‑element architecture to provide a compact size while maintaining high performance. It operates over a 10 MHz to 500 MHz frequency range and complies with Merrimac’s space‑qualified design standards.
Key specifications include isolation up to 30 dB, insertion loss as low as 0.5 dB, amplitude balance within 1°, and VSWR up to 1.24. The device handles up to 1 W input power, has a 50 Ω impedance, and operates from –55 °C to +85 °C. Mechanical details such as package dimensions and weight are also provided.
| Frequency range | 10 – 500 MHz |
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It covers a frequency range of 10 MHz to 500 MHz.