HMC678LC3CTR

Product Overview

HMC678LC3CTR is a single-pole double-throw (SPDT) wideband RF switch IC from Analog Devices Inc., designed for controlled RF path selection in wireless front ends, microwave signal chains, communication modules and RF test circuitry. It provides one common RF port switched between two RF paths and operation up to 13 GHz, helping designers replace mechanical switching with a compact semiconductor RF switching solution.

For practical design review, this part should be evaluated together with the antenna network, filters, LNA, PA, receiver, transmitter and control logic. The package listed for this orderable code is 16-LFCQFN Exposed Pad, so engineers should compare the land pattern, RF-port orientation, control truth table and assembly requirements with the latest manufacturer datasheet before production approval.

Key Features

• Manufacturer: Analog Devices Inc.
• Part Number: HMC678LC3CTR
• Device Type: single-pole double-throw (SPDT) wideband RF switch IC
• Switch Configuration: single-pole double-throw (SPDT)
• RF Frequency Range: up to 13 GHz
• RF Path Function: one common RF port switched between two RF paths
• Technology / Construction: GaAs/MMIC-style RF switch family commonly used for broadband microwave signal routing
• System Impedance: 50 Ω RF signal-path design reference where supported by the datasheet
• Package / Case: 16-LFCQFN Exposed Pad
• Assembly Consideration: Surface-mount package for compact RF PCB layouts
• Use Case: antenna switching, transmit/receive routing or RF signal-chain path selection
• Design Notes: Verify insertion loss, isolation, return loss, switching speed, RF power handling, bias/control limits and pinout against the official datasheet before final approval.

Applications

HMC678LC3CTR can be used in antenna switching, transmit/receive path selection, diversity switching, filter selection and compact RF signal-chain routing. It is suited to RF front-end designs where signal paths need to be selected electronically while keeping board size, repeatability and switching control under the system controller.

In replacement, repair or BOM-continuation work, buyers should compare the exact topology, frequency range, package footprint, RF-port arrangement and control logic with the original board. Any substitution should also consider loss, isolation, return loss, switching speed, linearity and RF input power limits in the end equipment.

Quality & Sourcing

Antrex Electronics can support HMC678LC3CTR sourcing with stock availability checks, RFQ quotation, date code review, package confirmation and shipment arrangement. For RF switch purchasing, buyers can provide target quantity, acceptable date code, package requirement, application frequency range and inspection requirements for faster quotation support.

For quality control, Antrex Electronics can help arrange product photos, label review, visual inspection and third-party testing support when required. OEMs, EMS providers, RF module manufacturers, communication-equipment builders, repair teams and electronic component buyers are welcome to send BOM lists or hard-to-find RF switch requests for sourcing assistance.