0.3 to 5.0 GHz, 100 W Compact High-Power SPDT Switch with Integrated Driver

The SKY12245-492LF is a compact, integrated high-power single-pole, double-throw (SPDT) PIN diode switch with driver circuit for TDD-LTE and similar applications. The part operates with a single +5 V supply and switches with a single control voltage (0 to 3 V). It can be tuned to specific RF bands within the range of 0.3 to 5.0 GHz by modifying select external SMT components.

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 LifecycleIn Production
Description (Absorptive/ Reflective)SPDT (R)
Frequency (GHz) Min.0.3
Frequency (GHz) Max.5.0
Typ. Isol. (dB)Ant to TX=28
Ant to RX=39
TX to RX=43
Typ. IL (dB)Ant to TX=0.3
Ant to RX=0.4
Typ. IIP3 (dBm)68
Max. TX Power (W)100
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
  • High TX to RX isolation
  • 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)

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