The F2910 is a rugged, low insertion loss, 50 Ω SPST absorptive RF switch designed for a multitude of wireless and other RF applications.  This device covers a broad frequency range from 30 MHz to 8000 MHz.  In addition to providing low insertion loss, the F2910 also delivers excellent linearity and isolation performance while providing a 50 Ω termination to the RF2 port when isolated.  This product also incorporates IDT’s new Constant Impedance, Kz, feature. The Kz feature maintains a near constant impedance when switching between RF ports preserving a higher RF port return loss. Standard switches without Kz create a large Voltage Standing Wave Ration (VSWR) transient when switching RF paths because the impedance of the switch in not well controlled during the switching event due to poor RF port return loss. These VSWR transients can potentially reduce the ruggedness of the switch itself and can also subject downstream components to large voltage stresses reducing ruggedness and degrading overall system performance. IDT’s Kz feature controls the impedance during the switching process minimizing the VSWR transient thereby improving switch ruggedness, reducing voltage stresses on downstream components and improving overall system performance.


  • Single pole, single throw with and absorptive termination on RF2 when isolated
  • Constant Impedance, Kz, feature
  • High performance RF
    • Isolation of 51 dB @ 2000 MHz
    • Insertion Loss of 0.55 dB @ 2000 MHz
  • High continuous RF CW Power Handling @ 85°C
    • Selected RF path: 30 dBm
    • Terminated RF path: 27 dBm
  • High linearity:
    • IIP2 of 118 dBm
    • IIP3 of 65 dBm
  • Single 2.7 V to 5.50 V supply voltage
  • 3.3 V and 1.8 V compatible control logic
  • Operating temperature -55 °C to +105 °C
  • 2 mm × 2 mm 8-pin VFQFP-N package

tuneProduct Options

Part Number Part Status Pkg. Type Lead Count (#) Temp. Grade Pb (Lead) Free Function Carrier Type Buy Sample
Active VFQFPN 8 P Yes SPST Abs Switch Cut Tape
Active VFQFPN 8 P Yes SPST Abs Switch Reel


Title language Type Format File Size Date
Datasheets & Errata
star F2910 Datasheet Datasheet PDF 1.22 MB
User Guides & Manuals
RF Product Selection Guide Guide PDF 1015 KB
PCN# : TB1810-02 Add alternate test location, F2910 Product Change Notice PDF 24 KB
RF Switches Family 日本語, 简体中文 Product Brief PDF 438 KB


Title language Type Format File Size Date
F2910 S-Parameters Model - S-Parameter ZIP 154 KB

memoryBoards & Kits

Part Number Title Type Company
F2910EVBI Evaluation Board for High Reliability SPST Absorptive RF Switch with Kz Evaluation Renesas