SKY13523-639LF Buy Now
0.7 to 3.0 GHz High-Isolation SP3T Switch

The SKY13523-639LF is a single pole, triple-throw (SP3T) switch used for single-ended filter switching in cellular applications. The SKY13523-639LF maintains low insertion loss and high isolation for all switching paths.

Depending on the logic voltage level applied to the control pins (V1 and V2), the RFC pin is connected to one of three switched RF outputs (RF1 to RF3) using a low insertion loss path, while the paths between the RFC pin and the other RF pins are in a high isolation state.

The SKY13523-639LF is manufactured in a compact, 14-pin 1.6 x 1.6 mm, Quad Flat No-Lead (QFN) package.

Please note: SKY13523-639LF is being discontinued and is not recommended for new designs. The suggested replacement is SKY13586-678LF.


  • Broadband frequency range: 0.7 to 3.0 GHz
  • High isolation: >45 dB @ 2.0 GHz
  • Low insertion loss: 0.5 dB typical @ 2.0 GHz
  • Small QFN (14-pin, 1.6 x 1.6 mm) package (MSL1, 260 °C per JEDEC J-STD-020)
Data Sheets SKY13523-639LF: 0.7 to 3.0 GHz High-Isolation SP3T Switch SKY13523_639LF_202834D_Discontinued.pdf (483 KB)
ProductName : SKY13523-639LF
Description (Absorptive/ Reflective) : SP3T (R)
Frequency (GHz) Min. : 0.7
Frequency (GHz) Max. : 3.0
Typ. IL (dB) : 0.65
Typ. Isol. (dB) : 50
Typ. IIP3 (dBm) : 56
Typ. IP1 dB (dBm) : 32
Control Logic :
Package : QFN, 14L
Package (mm) : 1.6 x 1.6 x 0.45
Product Information:
Description: Broad Market
Description: High Isolation
Description: Low Insertion Loss
Frequency Max.: ≥2.9 GHz and < 5.9GHz
Frequency Min.: ≥400 MHz
Function: SP3T
Package Type: DFN, QFN, MLPD, MLPQ
Power Handling: ≥30 dBm and <40 dBm
Status: In Production
Status: New
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