PE42820B-X

Product Overview

PE42820B-X is an RF switch IC from pSemi, designed to route RF signals under electronic control in compact wireless, instrumentation or communication signal-chain designs. It functions as a single-pole double-throw (SPDT) device for RF paths up to 2.7 GHz, making it useful when a board needs to select, isolate or redirect one RF path without a mechanical relay.

In a practical RF front end, PE42820B-X should be evaluated together with the antenna network, filters, LNA, power amplifier and transceiver section. Engineers normally review insertion loss, isolation, return loss, RF power handling, control timing, bias conditions and package footprint before approving the switch for production or replacement use.

Key Features

• Manufacturer: pSemi
• Part Number: PE42820B-X
• Device Type: single-pole double-throw (SPDT) RF switch IC
• Switch Configuration: single-pole double-throw (SPDT)
• Frequency Range: up to 2.7 GHz
• Insertion Loss Review: confirm the insertion-loss curve at the target operating frequency, especially through the selected RF path
• Isolation Review: verify off-state isolation between RF ports across the application band
• Return Loss / VSWR: review input and output match for the selected RF port and the unused port condition
• Control / Bias Requirements: confirm supply rail, control logic thresholds, enable state and truth-table behavior from the datasheet
• Typical System Impedance: 50 Ω RF signal-chain environment; confirm port matching and any required external components in the reference design
• Package / Case: 32-VFQFN Exposed Pad
• Design Notes: verify RF port orientation, land pattern, ground stitching, ESD handling, moisture level and reel suffix before production release

Applications

PE42820B-X can be used in RF front-end modules, antenna-switching circuits, receiver/transmitter path selection, filter-bank switching, test-port routing, wireless communication equipment and compact embedded RF products. Its value is to provide a controlled RF path while saving board area compared with relay-based or larger discrete switching approaches.

Typical design reviews should consider single-pole double-throw (SPDT) routing for RF paths up to 2.7 GHz, including antenna selection, transmit/receive path routing, filter-bank selection, test-port switching, high-linearity wireless front ends, broadband infrastructure switching. For repair, replacement or BOM-continuation projects, buyers should compare the exact suffix, package, pinout, RF port configuration, control logic and termination style with the existing board design before approving substitution.

Quality & Sourcing

Antrex Electronics can support PE42820B-X 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, packaging preference, frequency range, application notes 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, repair teams and electronic component buyers are welcome to send BOM lists or hard-to-find RF switch requests for sourcing assistance.