4N49TXV

Transistor, Photovoltaic Output Optoisolators Overview

The 4N49TXV is a single-channel transistor output optocoupler manufactured by TT Electronics/Optek Technology. It features an NPN phototransistor output and utilizes a TO-78-6 metal can package for through-hole mounting. The device provides 1000 Vrms isolation voltage between input and output. Key electrical parameters include a collector-emitter saturation voltage of 300 mV maximum, a forward voltage of 1.5 V, and a power dissipation rating of 300 mW. It operates within a temperature range of -55°C to +125°C.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Hermetically sealed TO-78-6 metal can package designed for high reliability applications
• High isolation voltage capability of 1000 Vrms for safe signal transmission
• Military screening program processing ensures enhanced durability and performance stability

Transistor, Photovoltaic Output Optoisolators Applications

• Industrial control systems requiring robust signal isolation
• Military and aerospace electronic circuits demanding high reliability
• High-voltage switching interfaces in automated machinery

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix TXV indicates military screening compliance distinct from standard commercial variants. Confirm the TO-78-6 package dimensions match the target PCB layout. Ensure the procurement channel provides traceability documentation required for regulated industries. Check RoHS status as military parts may have different compliance classifications than commercial equivalents.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when hermetic sealing and extended temperature operation are critical. The TO-78-6 package offers superior environmental protection compared to plastic packages. Consider the 1000 Vrms isolation rating for high-noise environments. Verify that the NPN phototransistor output configuration aligns with the downstream circuit requirements.

Transistor, Photovoltaic Output Optoisolators Part Context

This part belongs to the 4N49 series of transistor output optocouplers produced by TT Electronics/Optek Technology. The series includes various packaging and screening options such as the standard 4N49A and surface-mount 4N49U. The TXV suffix specifically denotes a version processed under a military screening program patterned after MIL-PRF-19500 standards.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

The 4N49A is a parameter-equivalent alternative within the same family but lacks the specific military screening associated with the TXV suffix. The 4N49U serves as a surface-mount equivalent but differs in package type and maximum collector current ratings.