# Quad Darlington Switch

**Manufacturer:** STMicroelectronics  
**MPN:** `L6221CD`

## Specifications

| Attribute | Value |
| --- | --- |
| Brand name | STMicroelectronics |
| Manufacturer name | STMicroelectronics |
| Manufacturer | STMicroelectronics |

## Distributor availability

| Distributor | SKU | Price (USD) | Qty | Stock | MOQ |
| --- | --- | --- | --- | --- | --- |
| Quest | L6221CD | 2.96 | 1 | 348 | None |
| STLAA.com | L6221CD |  |  | 522 | None |
| GreenTree Electronics | L6221CD |  |  | 522 | None |
| Digi-Key | L6221CD-ND | 2.24 | 1 | None | 1000 |
| Little Diode | L6221CD | 17.8217325 | 1 | 1 | 1 |
| Hotenda | H2039396 |  |  | None | 1 |
| Win Source | L6221CD |  |  | 4513 | 1 |
| Digi-Key | 1663383 |  |  | None | 1 |

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Structured data: `/python/html6/product/500/65000000/65142000/part_--L6221CD---STMicroelectronics--be61dbc44f.json`  
Search API: https://www.dataalchemy.com/api/  
MCP server: https://www.dataalchemy.com/mcp