Skip to main content
Log in
onsemi MOC3011SM — Optoisolators

MOC3011SM onsemi Optoisolator – Triac Output, 4170Vrms

MPNMOC3011SM
End of Life

onsemi MOC3011SM, 1-channel triac-output optoisolator, 4170Vrms isolation, 250 V off-state voltage, surface-mount 6-SMD gull wing package, no zero-crossing circuit.

$0.74Ref. price · indicative, final on quote
onsemi MOC3011SM datasheet (PDF)
Packaging6-SMD, Gull Wing
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

MOC3011SM specifications
ParameterValue
Output typeTriac
MountingSurface Mount
Voltage - isolation4170Vrms
Voltage - off state250 V
Voltage - forward (Vf)1.15V
Current - hold100µA (Typ)
Current - DC forward (If)60 mA
Current - LED trigger (Ift)10mA
Operating temperature-40°C ~ 85°C
Approval agencyUL
PackageTube
Case6-SMD, Gull Wing
Channels1
Zero crossing circuitNo

Product details

The MOC3011SM: Buyers can commit to BOM quantities without obsolescence risk or successor search.

4170Vrms isolation for AC line switching

Rated for 4170Vrms isolation between input and output, this optoisolator provides the reinforced insulation needed to safely drive a triac from a low-voltage control circuit on a 120 V or 240 V AC line. The 250 V off-state voltage means the output triac can block the full peak of a 240 VAC waveform when the LED is off.

Surface-mount 6-SMD gull wing package

Supplied in a 6-SMD gull wing package for surface-mount assembly, the MOC3011SM suits automated PCB production.

Frequently asked questions

Can MOC3011SM be used for AC switching without zero crossing?

Yes — the MOC3011SM has no zero-crossing circuit, so it can trigger the triac at any point in the AC cycle. This makes it suitable for phase-angle control applications like dimmers and soft-start circuits.

What is the closest functional second-source to MOC3011SM?

The MOC3073SVM is a surface-mount peer with the same 4170Vrms isolation, triac output, and no zero-crossing, but it specifies a static dv/dt of 1 kV/µs versus the MOC3011SM's unspecified dv/dt. For through-hole designs, the MOC3020M and MOC3073M are alternatives — confirm the package and dv/dt requirements before substituting.

Is MOC3011SM RoHS compliant?

Yes — the MOC3011SM is listed as ROHS3 Compliant.