100PCS PC817 EL817 817 817C DIP-4 Optocoupler FL817C PS817C Chipset
Quick answer
Is $2.79 a good price for 100PCS PC817 EL817 817 817C DIP-4 Optocoupler FL817C PS817C Chipset?
Yes: at $2.79 it is 5% below the typical price of $2.95 that DipScout measured over the last 4 days, a real drop. Tracked since Oct 23, 2026, it ranged from $2.79 to $2.95.
$2.79
Today it costs $2.79 on AliExpress. Since Oct 23, 2026, when we started tracking it, it ranged from $2.79 to $2.95. It is 5% below the typical price of $2.95 that we measured: a real drop.
You save $0.16 · was $2.95
Drop confirmed by our price history: we tracked the price over the last 4 days and the typical price (time-weighted median) was $2.95.
View on AliExpressThe price above is the last recorded reading, not a live checkout lookup.
Price history
Today$2.79↓ 5% below typical
Lowest$2.79since Oct 26
Highest$2.95Oct 23 to Oct 26
typical price: median of the last 14 daysTracked since Oct 23 · 1 changeHover over the chart to see each price.Tap the chart to see each price.
See every price change
| When | Price | Change |
|---|---|---|
| Oct 26, 01:09 UTC | $2.79 | −5% |
| Oct 23, 20:05 UTC | $2.95 | start |
| Store | YXSHENG Electronic Store |
|---|---|
| Product rating | — |
| Store rating | — |
| AliExpress category | Electronic Components & Supplies › Active Components |
| Recorded readings | 2 |
| First seen | 10/23/2026 |
| Last reading | 10/27/2026, 8:20:32 PM UTC |
Also sold by 1 other store
Same title and category on AliExpress, cheapest first. Each store has its own price and history; check the variant and shipping.
| YXSHENG Electronic Store · Ships from US | $2.79 · 349 sold |
|---|