S138A

RF Switches Overview

The S138A is a single-pole double-throw (SPDT) RF switch manufactured by L3 Narda-MITEQ. It operates within a frequency range of 2 GHz to 18 GHz. The component provides a minimum isolation of 80 dB and a maximum insertion loss of 3 dB. It features a P1dB compression point and an IIP3 of 35 dBm. The device utilizes SMA connectors and is designed for general-purpose RF applications. It functions as a reflection-type topology switch.

RF Switches Feature Summary

• Single-pole double-throw configuration for signal routing
• High isolation performance up to 80 dB
• Broadband operation covering 2 GHz to 18 GHz
• SMA connector interface for integration

RF Switches Applications

• General-purpose RF signal switching
• Test and measurement equipment
• Telecommunications systems
• Radar systems

RF Switches Procurement Notes

Verify the specific datasheet revision and exact electrical tolerances with the manufacturer or authorized distributor before procurement. Confirm that the SMA connector type matches the system requirements. Ensure the operating temperature range of 0°C to 70°C aligns with the intended environment. Request official documentation to validate the 80 dB isolation and 3 dB insertion loss specifications at the target frequencies.

RF Switches Selection Notes

Select this component when a broadband SPDT switch is required for frequencies up to 18 GHz. Consider the 35 dBm linearity metrics for signal integrity. Evaluate the SMA interface compatibility with existing PCB or cable assemblies. Compare the 80 dB isolation against system noise floor requirements. Assess the physical module packaging for space constraints in the design.

RF Switches Part Context

The S138A belongs to the Narda-MITEQ portfolio of microwave and RF components. It is categorized as an RF switch chip/module. The manufacturer, L3 Narda-MITEQ, specializes in high-performance microwave solutions. This part is distinct from other series like the LP series which focus on amplifiers. It serves as a passive switching element within larger RF chains.

RF Switches Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material. Cross-reference with similar SPDT switches from the same manufacturer if availability is an issue. Verify pinout and connector compatibility before considering any alternative components.