SB4020

Overview

The SB4020 is a 2.92mm Bias Tee RF adapter manufactured by Fairview Microwave, designed for frequencies ranging from 10 MHz to 40 GHz. It features three female ports with normal polarity and maintains a 50 Ohm impedance throughout the signal path. The component supports a maximum DC current of 250 mA and a voltage rating of 16 Volts. Key electrical specifications include a VSWR of 1.8. Constructed with stainless steel body material and gold-plated contacts, it ensures reliable performance in high-frequency applications.

Feature Summary

• Integrates bias tee functionality into a compact 2.92mm form factor
• Supports wideband operation from 10 MHz up to 40 GHz
• Provides isolated DC injection capability via dedicated port

Applications

• Biasing active microwave components such as amplifiers or oscillators
• High-speed switching systems requiring RF and DC integration
• Phased array system connectivity and testing

Procurement Notes

Confirm exact frequency range and DC ratings against official datasheets prior to ordering. Verify connector gender and polarity match system requirements. Ensure environmental conditions align with specified operating temperature limits. Check availability status directly with authorized distributors as stock levels fluctuate.

Selection Notes

Select this component when a 2.92mm interface is required for frequencies up to 40 GHz. Consider the 250 mA current limit and 16V voltage rating for bias circuit design. Ensure compatibility with existing RF infrastructure regarding impedance and physical dimensions.

Part Context

Fairview Microwave specializes in RF, microwave, and mmWave components. The SB4020 belongs to their line of RF adapters, specifically tee configurations that combine signal splitting with DC bias injection capabilities for active device integration.

Replacement Considerations

SB4000A: Higher DC current (500 mA) and voltage (25 Volts) rating; operates from 30 kHz to 40 GHz.