TPAS179-92LF from TECH PUBLIC, in a 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	RF2	passive	RF port 2. DC-3 GHz RF I/O connected to RFC when VC2=High/VC1=Low (insertion loss ~0.4 dB @ 2.5 GHz). Requires a series DC blocking capacitor C1 (56 pF for >500 MHz operation).
2	GND	power_in	Ground reference for the RF switch. Connect to system ground with a low-inductance path.
3	RF1	passive	RF port 1. DC-3 GHz RF I/O connected to RFC when VC1=High/VC2=Low (insertion loss ~0.4 dB @ 2.5 GHz). Requires a series DC blocking capacitor C1 (56 pF for >500 MHz operation).
4	VC1	input	Switch control input 1. Logic High (2.8 V to 5 V) selects the RFC-RF1 path (insertion loss); Logic Low (-0.2 V to 0.2 V) isolates RF1. Abs max -6.0 to +6.0 V;
5	RFC	passive	RF common port. Routed to RF1 or RF2 per VC1/VC2 truth table. DC-3 GHz operation with VSWR ~1.2 and IIP3 ~55 dBm. Requires a series DC blocking capacitor C1 (56 pF for >500 MHz operation).
6	VC2	input	Switch control input 2. Logic High (2.8 V to 5 V) selects the RFC-RF2 path (insertion loss); Logic Low (-0.2 V to 0.2 V) isolates RF2. Abs max -6.0 to +6.0 V;

Key specifications

Parameter	Value
Manufacturer	TECH PUBLIC
Package	SOT-363
Category	Interface
Pins	6

Ordering variants

Same part, different packaging or reel option.

TPAS179-92LF

CAD (KiCad official)

Symbol: TPAS179-92LF
Footprint: Package_TO_SOT_SMD:SOT-363_SC-70-6
3D model: SOT-363 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`tpas179-92lf.step`	99 KB	You want the bare part, or you mark your own boards.
`tpas179-92lf-etched.step`	1.9 MB	You want the part with `TPAS179-92LF` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 489 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: TECH PUBLIC datasheet (5 pp, sha256 4cf1ffe39a23345a, retrieved 2026-08-17, tier: lcsc)
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