Key facts
- Brand
- Fairchild
- Model
- MOC3063
- Category
- Other Electronics
- Documents
- 3
- Languages
- EN
- Last added
- 2012-08-01
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Fairchild Semiconductor AN-3004 Zero Voltage Crossing Optically Isolated Triac Drivers Application Note
The document introduces the zero-cross family of optically isolated triac drivers as a solution for interfacing low-current control circuits with AC power loads. It highlights features such as guaranteed 7.5 kV dielectric withstand voltage, integrated zero-crossing switches to eliminate current surges and EMI, and high transient immunity.
The text details the construction of the device using liquid phase EPI infrared LEDs and silicon detector chips in a 6-pin DIP package. It explains the operation of the detector chip containing high-voltage SCRs that function as a light-sensitive triac, ensuring switching occurs near zero voltage to reduce noise. The note also covers basic driving circuits, resistor calculations for current limiting, and considerations for inductive loads using snubber networks.
Fairchild MOC3063 specifications
| Peak Repetitive Surge Current | 1 A (PW = 100 µs, 120 pps) |
|---|---|
| Off-State Output Terminal Voltage | 600 V Peak |
| Isolation Surge Voltage | 7500 Vac(pk) |
| Operating Temperature Range | -40 to +85 °C |
Source: FAIRCHILD MOC3061-M MOC3062-M MOC3063-M MOC3162-M MOC3163-M handbook
All Fairchild MOC3063 documents by type
How to use the product for one specific task, with worked examples.
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the minimum forward current required to latch the MOC3061 triac driver?
The maximum guaranteed current necessary to latch the MOC3061 is 15 mA.
What is the minimum forward blocking voltage between the main terminals for this device family?
The minimum forward blocking voltage between MT1 and MT2 is 600 volts.
What is the recommended operating current for MOC3061-M?
The recommended operating I F lies between 15 mA and the absolute max of 60 mA.
From: FAIRCHILD MOC3061-M MOC3062-M MOC3063-M MOC3162-M MOC3163-M handbook
What is the maximum operating temperature for this device?
The absolute maximum operating temperature is +85°C.
From: FAIRCHILD MOC3061-M MOC3062-M MOC3063-M MOC3162-M MOC3163-M handbook
What is the isolation voltage rating of the MOC3061‑M series?
The devices are rated for a 7500 V peak isolation voltage.
What LED trigger current should be used for the MOC3061‑M?
A typical LED trigger current is 15 mA for the MOC3061‑M; 10 mA for MOC3062‑M and MOC3162‑M; 5 mA for MOC3063‑M and MOC3163‑M.