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F2971

75ohm SP2T Absorptive RF Switch 5MHz to 3000MHz with RFC Termination

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Product Details

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  • Single-pole double-throw with absorptive terminations on the isolated port
  • Leading performance RF over 5MHz to 3000 MHz
    • Isolation: 65dB at 1200MHz
    • Insertion loss: 0.45dB at 1200MHz
  • High continuous RF CW power handling at 85 °C
    • Selected RF path: 27dBm
    • Terminated RF path: 24dBm
  • High linearity:
    • IIP2/IIP3: 95dBm/63dBm
    • CSO and CTB: -90dBc
  • Single 2.70V to 3.60V supply voltage
  • 3.3V and 1.8V compatible control logic
  • Operating temperature -40 °C to +105 °C
  • 4mm × 4mm 20-LQFN package

The F2971 is a rugged, low insertion loss, 75? SP2T (SPDT) absorptive RF switch designed for a wide range of CATV and broadband RF applications. This device covers a broad frequency range from 5MHz to 3000MHz. In addition to having excellent linearity and isolation performance, it also provides a 75? termination to the isolated RF port. The F2971 features an internally switched termination resistor on the RF common port.

Product Documents

Product Brief

2025-08-25

RF Switches Family

pdf | 438.02 KB
Datasheet

2025-08-25

F2971 Datasheet Rev O

pdf | 5.07 MB
Report

2025-08-25

PCN# : 220029 Add Alternate Assembly Locations on VFQFPN and LGA Packages

pdf | 517.44 KB

Boards and Kits

Board Image

Evaluation Board for 75 Ohm SP2T Absorptive RF Switch

The F2971EVBI is a fully populated evaluation board enabling easy RF evaluation of the F2971 product. 

“Thru” calibration connectors are conveniently located on the evaluation board to simplify the calibration process prior to making any RF measurements. The RF through measurement (RF1 to RF2) can be made by applying the correct control logic voltage to the control pins as outlined in the datasheet. DC power, ground and the control voltages are applied to the pin header.

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Part Number (3)

F2971NCGK

F2971NCGK8

F2971EVBI

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