MAR-3SM+

Overview

The MAR-3SM+ is a monolithic microwave integrated circuit (MMIC) gain block amplifier from Mini-Circuits, designed for wideband applications. It operates over a frequency range of DC to 2000 MHz and features a Micro-X style surface-mount package. The device utilizes InGaP HBT technology with a Darlington configuration to deliver high dynamic range and repeatable performance across production lots. It is RoHS compliant and offers an expected mean time to failure of 2700 years at an 85°C case temperature.

Feature Summary

• Utilizes InGaP HBT technology with Darlington configuration for high linearity
• Enclosed in a compact Micro-X style surface-mount package
• Provides wideband operation from DC to 2000 MHz
• Ensures repeatable performance consistency between manufacturing lots

Applications

• S-band upconverter design
• RF signal chain amplification
• Test equipment interconnects
• Wireless communication setups

Procurement Notes

Verify the specific ordering suffix to ensure compliance with required environmental standards, such as RoHS. Confirm that the selected variant matches the intended surface-mount footprint requirements for your PCB layout. Cross-reference the manufacturer's latest datasheet revision to validate electrical characteristics against your system specifications before finalizing procurement orders.

Selection Notes

Select this component when a linear gain block is required for frequencies extending down to DC. The InGaP HBT process provides robust performance suitable for general-purpose RF amplification. Ensure the design accommodates the Micro-X package dimensions and thermal requirements associated with the Darlington configuration for optimal reliability.

Part Context

This part belongs to the MAR series of RF amplifiers from Mini-Circuits, which are engineered for high dynamic range and wideband utility. The MAR-3SM+ specifically addresses needs for SMT integration in systems requiring DC-coupled amplification up to 2 GHz, serving as a key building block in modern RF front-end architectures.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation.