AS179-92LF from Skyworks Solutions, in a SC-70-6(SOT-363). Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin	Name	Type	Function
1	J3	passive	RF port J3. One of the two 'throw' RF ports of the SPDT switch; 50 Ω characteristic impedance. Requires a 100 pF DC-blocking capacitor for >500 MHz operation (larger values for lower frequencies).
2	GND	power_in	Ground return for the switch. Must be tied to the PCB ground plane with a low-inductance connection for proper RF performance.
3	J2	passive	RF port J2. The other 'throw' RF port of the SPDT switch; 50 Ω characteristic impedance. Requires a 100 pF DC-blocking capacitor for >500 MHz operation (larger values for lower frequencies).
4	V1	input	DC control voltage input V1. Complementary control with V2 selects the active RF path. VCTL low = 0 to 0.2 V (@ 20 μA max); VCTL high = 2.0 V (@ 100 μA max) or 5.0 V (@ 200 μA max). Absolute maximum range -1.2 V to +8.0 V.
5	J1	passive	RF common port J1 (the 'pole' of the SPDT). Routed to either J2 or J3 depending on the V1/V2 control state; 50 Ω characteristic impedance. Requires a 100 pF DC-blocking capacitor for >500 MHz operation.
6	V2	input	DC control voltage input V2. Complementary control with V1 selects the active RF path. VCTL low = 0 to 0.2 V (@ 20 μA max); VCTL high = 2.0 V (@ 100 μA max) or 5.0 V (@ 200 μA max). Absolute maximum range -1.2 V to +8.0 V.

Key specifications

Parameter	Value
Manufacturer	Skyworks Solutions
Package	SC-70-6(SOT-363)
Category	Interface
Pins	6

Ordering variants

AS179-92LF

CAD (KiCad official)

Symbol: AS179-92LF
Footprint: Package_TO_SOT_SMD:SOT-363_SC-70-6
3D model: SC-70-6(SOT-363) (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`as179-92lf.step`	99 KB	You want the bare part, or you mark your own boards.
`as179-92lf-etched.step`	1.7 MB	You want the part with `AS179-92LF` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 434 faces against 117 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

Datasheet: Skyworks Solutions datasheet (8 pp, sha256 bdaa2639a8239849, retrieved 2026-08-17, tier: manufacturer)
Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF