J507 TO-92 2L

Current Regulation - Diodes, Transistors Overview

The Linear Integrated Systems J507 is a two-lead current regulator diode designed for applications requiring stable current sources. It utilizes JFET techniques to maintain a constant forward current within a wide voltage range without external biasing circuits. The device operates with a nominal forward current of 1.44 mA, offering a tolerance of ±20%. Key electrical parameters include a maximum knee impedance limiting voltage of 2.8 V at 25°C and a dynamic impedance of 0.6 mΩ typical. It supports a peak operating voltage of 50 V and handles continuous power dissipation up to 350 mW. The component functions reliably across an extended junction temperature range from -55°C to 150°C.

Current Regulation - Diodes, Transistors Feature Summary

• Maintains constant current over a wide voltage range without separate voltage source
• Utilizes JFET techniques for simple series circuitry operation
• Provides excellent temperature stability and high circuit stability versus temperature

Current Regulation - Diodes, Transistors Applications

• Test equipment and instrumentation constant-current supply
• Current-limiting protection circuits
• Timing circuits requiring precise current control

Current Regulation - Diodes, Transistors Procurement Notes

Verify the specific suffix code against official Linear Integrated Systems documentation to confirm pinout configuration and tolerance grade. Ensure the supplier provides traceability to the original manufacturer datasheet. Confirm that the TO-92 package matches the required mechanical footprint. Check for RoHS compliance status if environmental regulations apply to the final assembly.

Current Regulation - Diodes, Transistors Selection Notes

Select the J507 when a nominal 1.44 mA regulation current is required. Verify that the load voltage remains above the knee voltage of 2.8 V to ensure proper regulation. Consider the 350 mW power dissipation limit relative to ambient temperature derating curves. Compare dynamic impedance requirements against other SST500 series variants if lower impedance is needed.

Current Regulation - Diodes, Transistors Part Context

The J507 belongs to the J500 series of current regulator diodes produced by Linear Integrated Systems. This series serves as a direct replacement for discontinued Siliconix J500 components. The family shares common design principles using JFET technology to provide reliable current regulation in compact packages suitable for space-constrained electronic designs.

Current Regulation - Diodes, Transistors Replacement Considerations

The J507 is documented as a direct replacement for the Siliconix J500 series. Verify pin compatibility and electrical parameter alignment before substitution. No other cross-model substitutes are confirmed in public documentation.