MOC8112 Phototransistor Output 5300Vrms 1-Channel 6-DIP
The MOC8112 Phototransistor is a single-channel optocoupler that uses an internal LED and a phototransistor to transfer electrical signals between isolated circuits. This isolation protects sensitive components such as microcontrollers and low-voltage logic circuits from high-voltage spikes, noise, and electrical interference. It is commonly used in switching circuits, industrial control systems, and signal isolation applications where safety and reliability are critical.
Housed in a 6-pin DIP package, the MOC8112 is easy to integrate into through-hole PCB designs. It allows input and output sections to remain electrically isolated while still enabling signal communication through optical coupling. This makes it ideal for interfacing digital circuits with high-power devices, improving system stability and protecting components from damage.
Features:
- Optical isolation between input and output.
- Single channel optocoupler.
- Phototransistor output.
- High noise immunity.
- Compact DIP-6 package.
- Suitable for logic and power interface circuits.
- Reliable and stable signal transmission.
Specifications:
| CHARACTERISTIC | SYMBOL | MIN. | TYP. | MAX. | UNITS | TEST CONDITIONS |
|---|---|---|---|---|---|---|
| INPUT DIODE | ||||||
| Forward voltage | Vr | 1.3 | 1.50 | V | Ir=60 mA | |
| Forward voltage temp. coefficient | ΔVr/ΔTr | -1.8 | mV/°C | |||
| Reverse voltage | Vn | 6.0 | 15 | V | In=10 μA | |
| Junction capacitance | Cj | 50 | pF | Vi=0 V,f=1 MHz | ||
| Reverse leakage current | Ik | .35 | 10 | µA | Vi=1 V,f=1 MHz | |
| OUTPUT TRANSISTOR | ||||||
| Breakdown voltage Collector to emitter | BVCEO | 70 | V | Ic=1.0 mA,It=0 | ||
| Emitter to collector Leakage current Collector to emitter | BVCEO | 7 | 5 | nA | VCE=10 V,It=0 | |
| Capacitance Collector to emitter | 8 | pF | VCE=0,f=1 MHz |
Pinout:
| Pin No. | Pin Name | Description |
|---|---|---|
| 1 | Anode | LED input anode |
| 2 | Cathode | LED input cathode |
| 3 | NC | No connection |
| 4 | Emitter | Transistor emitter |
| 5 | Collector | Transistor collector |
| 6 | Base | Transistor base (optional control) |
Applications:
- Microcontroller isolation (Arduino, PIC, etc.).
- Switching power supplies.
- Industrial automation systems.
- Signal isolation circuits.
- Relay driving and interfacing.
- Noise suppression in digital circuits.
Package Includes:
- 1x MOC8112 Phototransistor Output 5300Vrms 1-Channel 6-DIP.


