3.4 to 3.8 GHz, 100 W Compact High-Power SPDT Switch with Integrated Driver

The SKY12247-492LF is a compact, integrated high-power single-pole, double-throw (SPDT) switch with driver circuit for TD-LTE applications. The part operates with a single +5 V supply and switches with a single control voltage (0 to 3 V).

This device features low TX and RX insertion loss, high isolation with low DC power consumption and requires minimal external components, enabling a smaller PCB footprint.

The device is provided in a 5 x 5 mm, 20-pin Quad Flat No-Lead (QFN) package.


Product LifecycleLast Time Buy
Description (Absorptive/ Reflective)SPDT (R)
Replacement Part SKY12245-492LF
Frequency (GHz) Min.3.4
Frequency (GHz) Max.3.8
Typ. Isol. (dB)Ant to TX=15
Ant to RX=40
TX to RX=40
Typ. IL (dB)Ant to TX=150.4
Ant to RX=400.5
Typ. IIP3 (dBm)68
Max. TX Power (W)100
Control Logic0/3
PackageQFN, 20L
Package (mm)5 x 5 x 1.5


  • Compact, integrated high-power switch with driver circuit
  • Small PCB footprint with minimal external components
  • Requires only a single +5 V DC supply, and a 0 to 3 V logic control
  • Low TX/RX insertion loss: 0.3/0.75 dB typical
  • High TX to RX isolation: 45 dB typical @ 3.6 GHz
  • Low DC power consumption: <130 mA in TX or RX mode
  • Small QFN (20-pin, 5 x 5 mm) Pb-free package (MSL3, 260 °C per JEDEC J-STD-020)

Product Documents