# WS499H

**wisesun** · RF Transceiver ICs · SOT-23-6

WS499H from wisesun, in a SOT-23-6. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | RO | passive | External crystal pin; the typical application connects the crystal Y1 (9.81563MHz at 315MHz, 13.52127MHz at 433.92MHz) between this pin and ground. |
| 2 | GND | power_in | Ground pin. |
| 3 | SHUT | input | Operating-mode select pin: connect to supply for shutdown mode, connect to ground for working mode. |
| 4 | DO | output | Demodulated data signal output. |
| 5 | VDD | power_in | Power supply pin, DC 2.0~5.5V. |
| 6 | ANT | input | RF signal input pin. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | wisesun |
| Package | SOT-23-6 |
| Category | RF And Wireless |
| Pins | 6 |

## CAD (KiCad official)

- Symbol: `WS499H`
- Footprint: `Package_TO_SOT_SMD:SOT-23-6`
- 3D model: SOT-23-6 (KiCad packages3D, STEP)
- 3D model files: `ws499h-etched.step` / `ws499h-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ws499h.step` / `ws499h.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [wisesun datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8602938686376067072) (7 pp, sha256 `201fe0f183ebed0b`, retrieved 2026-10-15, 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:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (vision), consensus `claude-opus-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/ws499h-datasheet.pdf)