WEOS61089-17F

@@ -0,0 +1,49 @@+# WEOS61089-17F++**Wayon** · Surge Protection Devices (SPDs) · SOP-8++WEOS61089-17F from Wayon, in a SOP-8. 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 | K1 | passive | Cathode 1 (Tip). Line-side terminal of thyristor/diode pair 1 protecting the Tip conductor. |+| 2 | G | input | Gate terminal. Referenced to -VBAT to program the negative firing voltage of both thyristors. IGT = 5 mA max, VGT = 2.5 V max. |+| 3 | NC | unconnected | No connect. Leave floating or tie to a non-critical net. |+| 4 | K2 | passive | Cathode 2 (Ring). Line-side terminal of thyristor/diode pair 2 protecting the Ring conductor. |+| 5 | K2 | passive | Cathode 2 (Ring). Second bond to the Ring-side cathode; internally common with pin 4 to reduce parasitic inductance for fast transients. |+| 6 | A | passive | Anode (Ground). Common anode of both protection thyristors and clamp diodes; tie to system ground. |+| 7 | A | passive | Anode (Ground). Second ground bond; internally common with pin 6 to reduce Ldi/dt drop during a surge. |+| 8 | K1 | passive | Cathode 1 (Tip). Second bond to the Tip-side cathode; internally common with pin 1 to reduce parasitic inductance for fast transients. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Wayon |+| Package | SOP-8 |+| Category | Circuit Protection |+| Pins | 8 |++## Ordering variants++Same part, different packaging or reel option.++- `WEOS61089-17F`++## CAD (KiCad official)++- Symbol: `WEOS61089-17F`+- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`+- 3D model: SOP-8 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Wayon datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590184557497511936) (5 pp, sha256 `2b13e1b4458b9126`, 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](docs/weos61089-17f-datasheet.pdf)

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