Vishay
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Optically isolated triac driver for switching mains loads — drives the gate of a power triac. Non-zero-crossing, so it can phase-control.
| Part number | MOC3021 |
|---|---|
| Manufacturer | Vishay |
| Category | Discrete Semiconductors › Optocouplers |
| Package | DIP-6 |
| Pins | 6 |
MOC3021 pinout
| Pin | Name | Type | Description |
|---|---|---|---|
| 1 | A | input | LED anode |
| 2 | K | input | LED cathode |
| 3 | NC | nc | Not connected |
| 4 | MT1 | passive | Main terminal 1 |
| 5 | NC | nc | Not connected |
| 6 | MT2 | passive | Main terminal 2 |
Schematic symbol and footprint
Schematic symbol
Footprint: DIP-6 — to scale, pad 1 in yellow (mm). Check against the datasheet before ordering PCBs.