JANTX4N24A

Transistor, Photovoltaic Output Optoisolators Overview

The JANTX4N24A is a military-grade, transistor-output optocoupler manufactured by TT Electronics/Optek Technology. It features a single channel with an NPN phototransistor output and includes a base connection for improved switching performance. The device utilizes a hermetically sealed TO-78-6 metal can package, ensuring reliability in harsh environments. Key electrical specifications include a maximum collector-emitter voltage of 40V, a maximum collector current of 50mA, and an isolation voltage of 1000Vrms. The typical rise and fall times are both 20µs, with a minimum current transfer ratio of 100% at a forward current of 10mA.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Hermetically sealed TO-78-6 metal can construction for environmental protection
• Integrated base terminal on the phototransistor to enhance switching speed and linearity
• High isolation voltage capability of 1000Vrms between input and output circuits
• Designed to meet rigorous military hardware requirements and standards

Transistor, Photovoltaic Output Optoisolators Applications

• Military aerospace control systems requiring high reliability
• Industrial equipment operating in extreme temperature environments
• High-voltage isolation interfaces in defense electronics
• Signal transmission in radiation-hardened or harsh environment applications

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify that the specific part number suffix matches the required military grade specification, as standard commercial variants may lack the necessary environmental sealing and testing. Confirm RoHS compliance status if required by the end application, noting that some military parts may have exemptions. Ensure the supplier provides traceability documentation consistent with military procurement standards. Check for availability constraints, as specialized components often have longer lead times. Validate that the TO-78-6 package footprint aligns with the existing PCB design before ordering.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when military-grade reliability and hermetic sealing are mandatory for the application. The integrated base allows for faster switching compared to standard versions without base connections. Consider the TO-78-6 package size constraints during PCB layout. Verify that the 1000Vrms isolation rating meets the system's safety requirements. Evaluate the thermal management needs given the operating temperature range of -55°C to 125°C. Ensure the forward current and collector current limits are not exceeded in the circuit design.

Transistor, Photovoltaic Output Optoisolators Part Context

The JANTX4N24A belongs to the 4N24 family of transistor-output optocouplers from TT Electronics/Optek Technology. It is the military-grade variant of the widely used 4N24 series. While sharing similar electrical characteristics with commercial counterparts like the 4N24A, it differs significantly in packaging and quality assurance. The 'TX' suffix typically denotes a specific military screening level. This part is distinct from surface-mount alternatives like the HCC242TXV, which use different packages.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

• JAN4N24
• 4N24

Transistor, Photovoltaic Output Optoisolators FAQ

What is the significance of the base connection on the phototransistor?

The base connection allows for external biasing or feedback, which can improve switching speed, linearity, and stability compared to devices without a base terminal.

Does the JANTX4N24A support surface mount installation?

No, the JANTX4N24A is designed for through-hole mounting using the TO-78-6 metal can package.

What is the typical switching time for this optocoupler?

The typical rise time and fall time are both 20µs under standard test conditions.