0.4 to 3.8 GHz SPDT Switch

The SKY13581-676LF is a single-pole, double-throw (SPDT) switch. No external DC blocking capacitors are required on the RF paths as long as there is no DC voltage on the RF line. The switch can operate over the temperature range of −40 C to +85 C. Switching is controlled by two CMOS/TTL compatible control voltage inputs (VC1 and VC2). Depending on the logic voltage level applied to the control pin, the RFC pin is connected to one of two switched RF outputs (RF1 or RF2) by using a low insertion loss path, while the path between the RFC pin and the other RF pin is in isolation. The SKY13581-676LF is provided in a small 9-pin, 1.1  1.1  0.5 mm QFN package.


  • Broadband frequency range: 0.4 to 3.8 GHz
  • Very low insertion loss
  • High isolation: 25 dB at 2.7 GHz
  • Integrated GPIO interface
  • No DC blocking capacitors required
  • Lead (Pb)-free and RoHS-compliant
  • Small QFN (9-pin, 1.1 x 1.1 x 0.5 mm) package (MSL1, 260 °C per JEDEC J-STD-020)
Product Summary SKY13581-676LF: 0.4 to 3.8 GHz SPDT Switch SKY13581_676LF_204178B_PS.pdf (143 KB)
ProductName : SKY13581-676LF
Description (Absorptive/ Reflective) : SPDT
Frequency (GHz) Min. : 0.7
Frequency (GHz) Max. : 3.8
Typ. IL (dB) :
Typ. Isol. (dB) :
Typ. IIP3 (dBm) :
Typ. IP1 dB (dBm) :
Control Logic : GPIO
Max. TX Power (W) :
Package : QFN, 12L
Package (mm) : 1.1 x 1.1 x 0.5
Product Information: New
Description: Band Switches
Description: High Isolation
Description: High Linearity
Description: Low Insertion Loss
Frequency Max.: ≥2.9 GHz and < 5.9GHz
Frequency Min.: ≥400 MHz
Function: SPDT / SP2T
Package Type: DFN, QFN, MLPD, MLPQ
Power Handling: ≥30 dBm and <40 dBm
Status: In Production
Status: New
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