MOC8021M

Transistor, Photovoltaic Output Optoisolators Overview

The MOC8021M is a single-channel photodarlington output optocoupler in a 6-pin DIP package. It features a gallium arsenide infrared emitting diode coupled to a photodarlington transistor. Key electrical parameters include an isolation voltage of 4170 Vrms, a maximum collector-emitter voltage of 50 V, and a minimum current transfer ratio of 1000% at 60 mA forward current. The device operates within a temperature range of -40°C to 125°C and complies with UL 1577 and IEC 60747-5-5 standards.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Photodarlington output configuration for high current gain
• Gallium arsenide infrared LED input
• High isolation voltage rating
• Compliant with international safety standards

Transistor, Photovoltaic Output Optoisolators Applications

• Solid-state relay interfaces
• Microprocessor system isolation
• Logic circuit interfacing

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix 'M' corresponds to the PDIP-6 tube packaging when ordering. Confirm that the required isolation voltage and current transfer ratio meet the design specifications. Ensure the operating temperature range aligns with the application environment. Check for any specific agency approvals required by the end equipment manufacturer.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when high current transfer ratio is needed from a low input current. The photodarlington output provides significant amplification compared to standard phototransistor outputs. Consider the 6-pin DIP form factor for through-hole mounting requirements. Evaluate the 50 V collector-emitter voltage limit against the load requirements.

Transistor, Photovoltaic Output Optoisolators Part Context

The MOC8021M belongs to the MOC80xx series of photodarlington optocouplers manufactured by onsemi. This series is designed for applications requiring high sensitivity and fast switching speeds. It shares similar internal structures with the MOC8050M but may differ in specific electrical characteristics or packaging options.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

• MOC8050M

Transistor, Photovoltaic Output Optoisolators FAQ

What is the minimum current transfer ratio?

The minimum current transfer ratio is 1000% at a forward current of 60 mA.

Does the device have a base connection?

No, the MOC8021M is a 6-pin DIP photodarlington optocoupler with no base connection.