HMC544E

RF Switches Overview

The HMC544E is a low-cost Single-Pole Double-Throw (SPDT) Radio Frequency switch manufactured by Analog Devices Inc. utilizing Gallium Arsenide Monolithic Microwave Integrated Circuit technology. It operates within a frequency range of DC to 4 GHz and is housed in a compact 6-lead SOT-23 surface-mount package. The device features an insertion loss of 0.7 dB and a typical off-isolation of 12 dB. It supports control voltages from 3 V to 5 V, with a maximum power dissipation of 574 mW. The operational temperature range spans from -40 °C to +85 °C.

RF Switches Feature Summary

• Low insertion loss for transmit-receive applications
• GaAs MMIC design for high linearity
• Compact SOT-23-6 surface mount packaging

RF Switches Applications

• Transmit-receive switching in wireless infrastructure
• Base station and repeater systems
• WiMAX and WiBro applications

RF Switches Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels due to obsolete status. Confirm RoHS compliance and lot traceability upon receipt. Ensure storage conditions meet humidity sensitivity level requirements. Validate part markings against official datasheet specifications to prevent counterfeit substitution.

RF Switches Selection Notes

Select this component for designs requiring SPDT switching up to 4 GHz with minimal signal attenuation. Consider the SOT-23-6 footprint for space-constrained layouts. Evaluate thermal management capabilities given the 574 mW power dissipation rating. Ensure control logic aligns with the specified 3 V to 5 V voltage range for reliable operation.

RF Switches Part Context

The HMC544E belongs to the HMC544 family of RF switches designed for cost-sensitive wireless applications. It shares architectural similarities with the HMC544A and HMC544AE variants, differing primarily in packaging or testing configurations. This series targets infrastructure equipment needing efficient signal routing between antenna and transceiver paths.

RF Switches Replacement Considerations

HMC544AE is listed as a direct substitute available from Analog Devices Inc.