Key facts
- Brand
- Fairchild
- Model
- MOC3052-M
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-05-09
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Fairchild MOC3051-M and MOC3052-M Datasheet
The Fairchild MOC3051-M and MOC3052-M are 6‑pin DIP random‑phase optoisolators that combine an AlGaAs infrared LED with a non‑zero‑crossing silicon triac driver. They provide isolation up to 7500 V peak and are intended for interfacing low‑voltage logic with 115 V or 240 V AC loads such as solenoid valves, lamp ballasts, and motor controls.
The document includes absolute maximum ratings, electrical characteristics, transfer curves, and application guidance. It describes recommended current‑limiting resistor values, snubber‑less operation, and circuit examples for noisy environments, along with safety and disclaimer information.
Fairchild MOC3052-M specifications
| Isolation Surge Voltage (peak) | 7500 Vac |
|---|---|
| Continuous Forward Current (Emitter) | 60 mA |
| Reverse Voltage (Emitter) | 3 V |
| Off‑State Output Terminal Voltage | 600 V |
| Peak Repetitive Surge Current | 1 A |
| Total Device Power Dissipation @ 25 °C | 330 mW |
| Storage Temperature Range | -40 °C to +150 °C |
| Operating Temperature Range | -40 °C to +85 °C |
All Fairchild MOC3052-M documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the maximum isolation voltage for the MOC3051-M/MOC3052-M?
The devices are rated for a minimum isolation voltage of 7500 V peak.
What continuous forward current can the emitter handle?
The emitter can handle a continuous forward current of up to 60 mA.
What is the maximum isolation voltage of the MOC3051-M/MOC3052-M?
The device is rated for a maximum isolation voltage of 7500 Vac peak.
How is the current‑limiting resistor value calculated for a line voltage?
The resistor must limit the driver current to 1 A, so R = Vp AC / 1 A (peak line voltage divided by 1 A).