The F2915 is a high reliability, low insertion loss, 50 Ω SP5T absorptive RF switch designed for a wide range of wireless and other RF applications.  This device covers a broad frequency range from 50 MHz to 8000 MHz.  In addition to providing low insertion loss, the F2915 also delivers excellent linearity and isolation performance while providing a 50 Ω termination to the unused RF ports.  The F2915 also includes a patent pending constant impedance (Kz) feature. Kz improves hot switching ruggedness, minimizes LO pulling in VCOs, and reduces phase and amplitude variations in distribution networks. It is also ideal for dynamic switching/selection between two or more amplifiers while avoiding damage to upstream/downstream sensitive devices such as PAs and ADCs.

The F2915 uses a single positive supply voltage supporting three logic control pins using either 3.3 V or 1.8 V control logic. Connecting a negative voltage to pin 20 disables the internal negative voltage generator and becomes the negative supply.


  • Five symmetric broad band, absorptive RF ports
  • Constant Impedance, Kz, feature
  • High performance RF
    • Isolation of 50 dB @ 2700 MHz
    • Insertion Loss of 1.2 dB @ 2700 MHz
  • High continuous RF CW Power Handling
    • Selected RF path: 33dBm
    • Terminated RF path: 27dBm
  • High linearity:
    • IIP2 of 114 dBm
    • IIP3 of 60 dBm
  • Single 2.7 V to 5.50 V supply voltage
  • External Negative Supply Option
  • 3.3 V and 1.8 V compatible control logic
  • Operating temperature -40 °C to +105 °C
  • 4 mm x 4 mm 24 pin QFN package

Product Options

Orderable Part ID Part Status Pkg. Type Lead Count (#) Temp. Grade Pb (Lead) Free Function Carrier Type Package Buy Sample
F2915NBGK Active VFQFPN 24 K Yes Switch Tray Package Info
F2915NBGK8 Active VFQFPN 24 K Yes Switch Reel Package Info

Documentation & Downloads

Title Other Languages Type Format File Size Date
Datasheets & Errata
F2915 Datasheet Datasheet PDF 615 KB
User Guides & Manuals
RF Product Selection Guide Guide PDF 1.18 MB
PCN# : A1809-04 Add Alternate Assembly Location for QFN packages Product Change Notice PDF 36 KB
PCN# : Q1703-01 Die Revision Change, F2915NBGK Product Change Notice PDF 667 KB
F2915 IBIS Model Model - IBIS ZIP 4 KB
F2915 S-parameters Model - S-Parameter ZIP 2.45 MB
RF Switches Family 日本語, 简体中文 Product Brief PDF 438 KB
IDT Products for Radio Applications 日本語 Product Brief PDF 2.34 MB
F2915 Product Brief REVA Product Brief PDF 249 KB

Boards & Kits

Part Number Title Type Company
F2915EVBI Evaluation Board for High Reliability SP5T Absorptive RF Switch