MOC8050

Transistor, Photovoltaic Output Optoisolators Overview

The MOC8050 is a single-channel photodarlington optocoupler manufactured by Isocom Components. It integrates a gallium arsenide infrared emitting diode with a monolithic silicon photodarlington detector, featuring no base connection to enhance noise immunity in high EMI environments. The device provides an isolation voltage of 5300Vrms and supports a collector-emitter breakdown voltage of 80V minimum. It operates within a temperature range of -55°C to 100°C, with a typical current transfer ratio of 500% at 10mA input. The component is available in a 6-SMD surface-mount package.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Eliminates chip-to-pin 6 base connection to improve output performance in high noise environments
• Provides high sensitivity to low input drive current for efficient operation
• Features high collector-emitter breakdown voltage capability for robust switching

Transistor, Photovoltaic Output Optoisolators Applications

• Appliances and measuring instruments
• I/O interfaces for computers
• Programmable controllers
• Solid state relays

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix (e.g., SD, SR2M) against the required packaging format, as variations exist between tape-and-reel and cut tape options. Confirm that the procurement source acknowledges the component's obsolete status and assesses availability risks accordingly. Ensure the received units match the electrical specifications defined in the official datasheet, particularly regarding isolation voltage and current transfer ratios.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when high noise immunity is critical due to its unique no-base-connection design. It is suitable for applications requiring high sensitivity to low input currents and robust isolation capabilities. Consider the surface-mount package constraints and verify thermal management requirements within the specified operating temperature range. Ensure compatibility with the target circuit's impedance and potential levels.

Transistor, Photovoltaic Output Optoisolators Part Context

The MOC8050 belongs to the MOC80xx series of photodarlington optocouplers, originally developed by Motorola and now produced by various manufacturers including Isocom Components. This series is characterized by its enhanced noise immunity compared to standard phototransistor outputs. The MOC8050 specifically offers higher current transfer ratios than its counterpart, the MOC8030, making it ideal for demanding industrial and consumer applications.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Public confirmed substitute part numbers include MOC8050SD and MOC8050SR2M from Isocom Components. Other equivalents may include MOC8050M from Fairchild Semiconductor. Verify pinout compatibility and electrical parameters before substitution.