AS169-73LF from Skyworks Solutions, in a SOT-23-6. 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 (throw 2). 50 Ω RF port; requires an external DC-blocking capacitor (CBL = 100 pF for operation >500 MHz) for positive-voltage operation. Connected to the common port J1 when V2 = HIGH and V1 = LOW.
2	GND	power_in	Ground reference for the die. Must be connected to system RF/DC ground.
3	J2	passive	RF port J2 (throw 1). 50 Ω RF port; requires an external DC-blocking capacitor (CBL = 100 pF for operation >500 MHz) for positive-voltage operation. Connected to the common port J1 when V1 = HIGH and V2 = LOW.
4	V1	input	Digital control voltage 1 (complement of V2). VLOW = 0 to 0.2 V @ 20 µA max, VHIGH = 3 V @ 100 µA max to 5 V @ 200 µA max. When V1 = HIGH and V2 = LOW, J1↔J2 is in insertion-loss (through) state.
5	J1	passive	Common RF port J1 (pole). 50 Ω RF port; requires an external DC-blocking capacitor (CBL = 100 pF for operation >500 MHz) for positive-voltage operation. Routed to either J2 or J3 based on the V1/V2 control state.
6	V2	input	Digital control voltage 2 (complement of V1). VLOW = 0 to 0.2 V @ 20 µA max, VHIGH = 3 V @ 100 µA max to 5 V @ 200 µA max. When V2 = HIGH and V1 = LOW, J1↔J3 is in insertion-loss (through) state.

Key specifications

Parameter	Value
Manufacturer	Skyworks Solutions
Package	SOT-23-6
Category	Interface
Pins	6

Ordering variants

AS169-73LF

CAD (KiCad official)

Symbol: AS169-73LF
Footprint: Package_TO_SOT_SMD:SOT-23-6
3D model: SOT-23-6 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`as169-73lf.step`	97 KB	You want the bare part, or you mark your own boards.
`as169-73lf-etched.step`	1.8 MB	You want the part with `AS169-73LF` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 445 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 (4 pp, sha256 3623b5b4e63e556d, 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