JANTX 4N49

Transistor, Photovoltaic Output Optoisolators Overview

The JANTX4N49 is a single-channel optocoupler manufactured by Micropac Industries, designed for high-reliability applications. It integrates a Gallium Aluminum Arsenide (GaAlAs) infrared LED with a high-gain N-P-N silicon phototransistor. The device is housed in a hermetically sealed TO-5 metal can package, ensuring durability in harsh environments. It meets the stringent quality levels defined by MIL-PRF-19500 for JAN and JANTX specifications. This component provides electrical isolation between input and output circuits while transmitting signals via light, making it suitable for industrial and aerospace systems requiring robust signal transfer.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Hermetically sealed TO-5 metal can package for environmental protection
• Integration of GaAlAs infrared LED and high-gain N-P-N silicon phototransistor
• Compliance with MIL-PRF-19500 JAN and JANTX quality standards

Transistor, Photovoltaic Output Optoisolators Applications

• Aerospace and defense electronic systems
• Industrial control circuit isolation
• Military-grade signal transmission interfaces

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify that the specific order includes the JANTX quality level designation to ensure compliance with MIL-PRF-19500 requirements. Confirm the package type is the hermetically sealed TO-5 variant. Check for any customer-specific testing requirements as the manufacturer allows testing to custom specifications alongside standard military grades. Ensure the supplier provides documentation confirming the JAN/JANTX screening process.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when radiation resistance and long-term reliability are critical. The JANTX grade offers enhanced screening compared to commercial variants. Consider the TO-5 package size constraints for PCB layout. Evaluate the need for base lead access if conventional transistor biasing is required, as similar models in the series offer this feature. Ensure the operating temperature range aligns with the specified conditions for the selected quality level.

Transistor, Photovoltaic Output Optoisolators Part Context

The 4N49 series includes variants such as 4N47, 4N48, and 4N49, all sharing similar structural designs but potentially differing in specific electrical parameters or screening levels. Micropac Industries produces these under JAN, JANTX, JANTXV, and JANS designations. The JANTX4N49 sits within this family, offering a balance of performance and cost for military applications without the highest-tier JANS screening.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Direct substitutes include other JANTX-rated single-channel optocouplers from Micropac Industries such as JANTX4N47 or JANTX4N48, provided pinout and electrical characteristics match. Cross-manufacturer replacements require careful verification of hermetic sealing and radiation hardness specifications.