TVS1800DRVR from Texas Instruments, in a WSON-6(2x2). 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	GND	passive	Ground / cathode return of the TVS clamp. Pins 1, 2, 3 and the exposed thermal pad are all internally tied to GND and should connect together to the system ground plane for lowest inductance and best thermal dissipation.
2	GND	passive	Ground / cathode return of the TVS clamp. Tie to GND together with pins 1, 3 and the exposed thermal pad.
3	GND	passive	Ground / cathode return of the TVS clamp. Tie to GND together with pins 1, 2 and the exposed thermal pad.
4	IN	passive	ESD and surge protected channel (anode of the TVS clamp). 18V reverse standoff voltage, clamps at ~22.8V at Ipp (40A, 8/20us). Pins 4, 5, 6 are internally connected and should be tied together at the protected signal/rail line.
5	IN	passive	ESD and surge protected channel. Internally tied to pins 4 and 6; connect all three to the protected line for lowest series impedance.
6	IN	passive	ESD and surge protected channel. Internally tied to pins 4 and 5; connect all three to the protected line for lowest series impedance.
EP	GND	passive	Exposed thermal pad on the bottom of the SON-6 package. Internally connected to GND (pins 1, 2, 3); must be soldered to the ground plane for proper thermal performance and mechanical retention.

Key specifications

Parameter	Value
Manufacturer	Texas Instruments
Package	WSON-6(2x2)
Category	Circuit Protection
Pins	7

Ordering variants

Same part, different packaging or reel option.

TVS1800DRVR
TVS1800DRVRDRVT

CAD (KiCad official)

Symbol: TVS1800DRVR
Footprint: Package_SON:WSON-6-1EP_2x2mm_P0.65mm_EP1x1.6mm
3D model: WSON-6(2x2) (KiCad packages3D, STEP)

Provenance

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

Datasheet: Texas Instruments datasheet (22 pp, sha256 bc51ca208dafd0ba, retrieved 2026-08-17, tier: lcsc)
Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
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