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onsemi MOC3020SM — Optoisolators

onsemi MOC3020SM Optoisolator, Triac Output, 4170Vrms, 6-SMD

MPNMOC3020SM
Active

onsemi MOC3020SM optoisolator, triac output, 1 channel, 4170Vrms isolation, 400 V off-state, non-zero-crossing, surface mount 6-SMD gull wing, tube.

$0.3100Ref. price · indicative, final on quote
onsemi MOC3020SM datasheet (PDF)
Packaging6-SMD, Gull Wing
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

MOC3020SM specifications
ParameterValue
Output typeTriac
MountingSurface Mount
Voltage - isolation4170Vrms
Voltage - off state400 V
Voltage - forward (Vf)1.15V
Current - hold100µA (Typ)
Current - DC forward (If)60 mA
Current - LED trigger (Ift)30mA
Operating temperature-40°C ~ 85°C
Approval agencyUL
PackageTube
Case6-SMD, Gull Wing
Channels1
Zero crossing circuitNo

Product details

The MOC3020SM is an active-production optoisolator from onsemi, listed as current lifecycle stage and ROHS3 compliant. Sourced to order against the BOM; availability and current pricing confirmed at RFQ.

Non-zero-crossing triac output for random-phase control

Output is a triac with no zero-crossing circuit — the device triggers on the LED signal regardless of the AC mains phase. This makes it suitable for random-phase firing in solid-state relays, motor speed controllers, and dimmers where phase-angle control is needed. The LED trigger current is 30 mA max, with a typical holding current of 100 µA, and the off-state voltage is rated 400 V. Isolation is 4170 Vrms, sufficient for line-voltage isolation in industrial and appliance applications.

Surface-mount 6-SMD gull-wing package

Housed in a 6-SMD gull-wing package (supplier device package 6-SMD), the MOC3020SM is intended for surface-mount assembly. The tube packaging suits pick-and-place lines that handle tube-fed components.

Frequently asked questions

Where can I buy MOC3020SM and how do I get a price?

Submit a request for quote to confirm current availability and pricing.

Will MOC3020SM drop into a panel that was specified around MOC3011SM without rewiring?

The MOC3011SM is a functional peer with the same UL approval, triac output, 4170Vrms isolation, and non-zero-crossing characteristic. Both are surface-mount 6-SMD gull-wing packages, so the MOC3020SM is a drop-in replacement for the MOC3011SM without board or wiring changes.