# BSTD1666M Thyristor - CASE: SOT78 MAKE: Siemens

**Manufacturer:** Siemens  
**MPN:** `BSTD1666M`

## Specifications

| Attribute | Value |
| --- | --- |
| Brand name | Siemens |
| Manufacturer name | Siemens |
| Manufacturer | Siemens |
| keywords | Buy BSTD1666M, BSTD1666M, BSTD1666M Thyristor |
| moq | 1 |
| MPN | BSTD1666M |
| multiple | 1 |
| originalCurrency | {'currency': 'GBP'} |
| qtyInStock | 0 |
| SKU | BSTD1666M |
| snippet | BSTD1666M Thyristor - CASE: SOT78 MAKE: Siemens |
| Type | Thyristor |
| Case | SOT78 |
| Dv/Dt Worst Case | 50 |
| Firing Char-Igt Max | 10m |
| Firing Char-Vgt Max | 2.0 |
| I(h) Max (A) | 50m |
| Id(off) Max (A) | 2.5m |
| It(stat) Max (A) | 7.5 |
| Supp Curr I(TSM) | 130 |
| t(switch) Off Typ Time (S) | 50u |
| V(drm) Max | 1.0k |
| V(T) Max | 2.0 |
| @Temp (test) (?C) | 115 |
| Oper Temp (?C) Min | -40 |
| Oper Temp (?C) Max | 110 |
| @It (A) | 23 |
| Surface Mounted Yes/No | NO |

## Distributor availability

| Distributor | SKU | Price (USD) | Qty | Stock | MOQ |
| --- | --- | --- | --- | --- | --- |
| Little Diode | BSTD1666M |  |  | None | 1 |

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Structured data: `/python/html6/product/500/121000000/121152500/part_--BSTD1666M---Siemens--0e7224ee50.json`  
Search API: https://www.dataalchemy.com/api/  
MCP server: https://www.dataalchemy.com/mcp