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Vishay VO3053 — Optoisolators
Vishay

VO3053 Triac Optocoupler, 600 V Off-State, 5.3 kV Isolation

MPNVO3053
End of Life

Vishay VO3053 triac output optocoupler, 600 V off-state, 5300 Vrms isolation, 1.5 kV/µs dV/dt, non-zero-cross, 5 mA max LED trigger, 100 mA on-state RMS, -55°C to 100°C, 6-DIP through-hole package.

$1.4Ref. price · indicative, final on quote
VO3053 datasheet
Packaging6-DIP (0.300", 7.62mm)
StockContact for availability
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
  • PayPal buyer protectionPay by T/T, PayPal or Payoneer — card payments covered end to end.

Specifications

VO3053 Technical Specifications
ParameterValue
Output typeTriac
Mounting typeThrough Hole
Voltage - isolation5300Vrms
Voltage - off state600 V
Voltage - forward (Vf)1.2V
Current - hold200µA (Typ)
Current - DC forward (If)60 mA
Current - LED trigger (Ift)5mA
Current - on state (It (RMS))100 mA
Operating temperature-55°C ~ 100°C
Approval agencycUR, UR
PackageTube
Case6-DIP (0.300\", 7.62mm)
Number of channels1
Static dV (dt)1.5kV/µs
Zero crossing circuitNo

Product details

600 V off-state, 5.3 kV isolation — the AC line interface

The Vishay VO3053 is a single-channel triac output optocoupler in a 6-DIP through-hole package, designed for isolated switching of AC loads up to 600 V off-state voltage. The 5300 Vrms isolation rating covers reinforced insulation requirements for mains-connected equipment, and the 1.5 kV/µs minimum static dV/dt ensures the output stays off during fast line transients — important for noisy industrial environments. The output is non-zero-crossing (random-phase), so the triac fires on any phase angle of the AC waveform, making this part suitable for phase-control applications like resistive load dimming or soft-start, not just on/off switching.

5 mA LED trigger — direct drive from logic or MCU

The LED forward voltage is 1.2 V typical, and the maximum continuous forward current is 60 mA, giving plenty of margin for derating at elevated temperatures or for driving the LED harder to reduce turn-on propagation delay. The on-state output current is rated at 100 mA RMS maximum, sized for driving a power triac gate or a small load directly.

Active lifecycle, ROHS3, cUR/UR approvals

It is ROHS3 compliant and holds cUR and UR component recognition, covering North American safety agency requirements for isolation components.

Frequently asked questions

Is the VO3053 zero-crossing?

No, the VO3053 is a non-zero-crossing (random-phase) triac output optocoupler. It fires on any phase angle of the AC waveform, which makes it suitable for phase-control applications such as dimming or soft-start, unlike zero-crossing types that only switch at the voltage zero crossing.

What is the recommended input current for the VO3053?

The maximum LED trigger current (IFT) is 5 mA, so driving the input LED with 5 mA to 10 mA through a current-limiting resistor is typical.

What is the difference between the VO3053 and the VO3052?

The key difference is the off-state voltage: the VO3053 is rated for 600 V off-state, while the VO3052 is rated for 400 V off-state. Both are non-zero-crossing, 6-DIP, 5.3 kV isolation parts. The 600 V rating of the VO3053 gives more headroom for 240 VAC line applications or for designs that need margin against line surges.