MOC8103G

Transistor, Photovoltaic Output Optoisolators Overview

The MOC8103G is a single-channel transistor output optocoupler manufactured by Isocom Components. It integrates an infrared emitting diode and an NPN silicon phototransistor in a 6-pin dual in-line plastic package with the base pin unconnected. The device provides high isolation voltage of 5300 Vrms, operates within a temperature range of -55 °C to 100 °C, and features a minimum current transfer ratio of 50%. It is RoHS compliant and UL recognized.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• High isolation voltage capability for safe signal transmission between isolated circuits
• Narrow current transfer ratio window ensures predictable open-loop gain performance
• Low coupled capacitance and unconnected base pin minimize noise susceptibility
• Compliant with VDE 0884 safety standards for enhanced insulation reliability

Transistor, Photovoltaic Output Optoisolators Applications

• Switchmode power supply feedback control loops
• AC line and digital logic isolation interfaces
• Coupling systems operating at different potentials and impedances

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify that the part number suffix 'G' corresponds to the specific lead form or packaging variant required for your assembly process. Confirm VDE 0884 approval status if safety certification is mandatory for your application. Ensure compatibility with through-hole mounting specifications and check for any specific handling requirements related to the plastic package construction during soldering.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when narrow CTR variation is critical for stable loop gain in power supply designs. The unconnected base pin reduces capacitive coupling compared to connected-base alternatives. Verify that the 5300 Vrms isolation rating meets the creepage and clearance requirements of your target regulatory standard. Consider the 6-pin DIP package constraints for PCB layout density.

Transistor, Photovoltaic Output Optoisolators Part Context

This device belongs to the MOC810x series of non-base lead optically coupled isolators produced by Isocom Components. The series includes variants such as MOC8106XG and MOC8107X, sharing similar architectural principles but differing in current transfer ratio specifications. These components are designed primarily for industrial and commercial power conversion applications requiring reliable galvanic isolation.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Equivalent parts include MOC8103 from Fairchild Semiconductor and Motorola Inc. Verify pinout compatibility and ensure the replacement maintains the same 5300 Vrms isolation rating and CTR characteristics. Check if the alternative manufacturer offers VDE 0884 certification if required.