JAN4N49A

Transistor, Photovoltaic Output Optoisolators Overview

The JAN4N49A is a single-channel transistor output optocoupler manufactured by TT Electronics/Optek Technology. It features an NPN phototransistor output and utilizes through-hole mounting in a TO-78-6 package. The device provides 1000 Vrms insulation voltage and supports a collector-emitter voltage of 40 V with a maximum collector current of 50 mA. Current transfer ratio ranges from 200% to 1000%, with forward current of 1 mA and forward voltage of 1.5 V. Rise and fall times are 20 µs, power dissipation is 300 mW, and operating temperature spans -55°C to +125°C.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Provides high-voltage isolation capability for signal transmission between circuits
• Utilizes a rugged metal can package suitable for demanding environments
• Features fast switching performance with defined rise and fall times

Transistor, Photovoltaic Output Optoisolators Applications

• Industrial control systems requiring galvanic isolation
• Military and aerospace electronic circuits
• High-reliability signal coupling applications

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix designation when ordering, as it indicates compliance level and packaging variations. Confirm that the TO-78-6 metal can package aligns with the target PCB or chassis mounting requirements. Ensure the supplier provides traceability documentation if the application mandates strict quality standards associated with this component series.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when high isolation voltage and wide temperature operation are required. The NPN phototransistor output suits digital switching interfaces. Consider the through-hole installation method and metal package thermal properties during layout design. Verify that the current transfer ratio meets the drive requirements of the connected load circuit within the specified temperature range.

Transistor, Photovoltaic Output Optoisolators Part Context

This part belongs to the 4N49 series of transistor output optocouplers produced by TT Electronics/Optek Technology. The JAN prefix typically denotes a version compliant with military or high-reliability specifications. The series is designed for applications requiring robust electrical isolation and reliable performance under harsh environmental conditions compared to standard commercial variants.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

JANTX4N49A is a confirmed substitute within the same family offering similar electrical characteristics.