20PCS/LOT TLP521 P521 DIP4 P521-1 TLP521-1 DIP-4 TLP521-1GB Optocoupler P521GB Straight Cutting
$1.98
Today it costs $1.98 on AliExpress. Since Oct 22, 2026, when we started tracking it, the price hasn't changed. We haven't tracked it long enough yet to say whether it's on sale.
We have tracked this product for less than a day; confirming a drop takes at least 3 days.
View on AliExpressThe price above is the last recorded reading, not a live checkout lookup.
Price history
$1.98
We started tracking this price on Oct 22. The chart takes shape over the days: we only draw prices we observed.
| Store | QIAOMAER electronicchip Store |
|---|---|
| Product rating | — |
| Store rating | — |
| AliExpress category | Electronic Components & Supplies › Active Components |
| Recorded readings | 1 |
| First seen | 10/22/2026 |
| Last reading | 10/23/2026, 2:02:51 AM UTC |