0.6 to 3.0 GHz Dual SPST (2xSPST) Shunt Switch (Two-Bit Control) in a WLCSP Package

Please note: SKY19003-001 is being discontinued and is not recommended for new designs.

The SKY19003-001 is a wafer level chip scale package (WLCSP) dual-shunt, single-pole, single-throw (2xSPST) switch with integrated logic and bias block. Both paths are connected on one side to a single RF ground bump.

The SKY19003-001 linearity is high enough to meet carrier aggregation requirements. The part is designed to sustain a peak voltage of 80 V typical without going to breakdown. The logic block operates with a 1.8 V high control voltage and requires a 2.85 V nominal VDD supply.

The SKY19003-001 is provided in a compact 8-bump, 1.277 x 1.377 x 0.4 mm WLCSP that meets requirements for board-level assembly. Bump diameters are 217 microns, with a minimum bump pitch of 400 microns.

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Description (Absorptive/ Reflective)2xSPST Shunt
Frequency (GHz) Min.0.6
Frequency (GHz) Max.3.0
RON (Ω)4.3
COFF (fF)170
Vpk (V)80
Control LogicGPIO
PackageWLCSP 8-bump
Package (mm)1.3 x 1.4 x 0.4


  • Broadband frequency range: 0.6 to 3.0 GHz
  • Vpeak: 80 V
  • RON: 4.3 Ω
  • COFF: 170 fF
  • High isolation: +33 dB @ 2.7 GHz
  • Supply voltage: 2.4 to 4.8 V
  • Control logic: GPIO
  • Ultra-small WLCSP (8-bump, 1.277 x 1.377 x 0.4 mm typical) package (MSL1, 260 °C per JEDEC J-STD-020)

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