This part is a kind of semiconductor called J500.

Function of this product has Current Reg. Diode.

Manufacturers : Micross

Image and pinout :

Some of the text within the PDF file :

J500 Current Regulator Diode Linear Systems replaces discontinued Siliconix J500 The Linear Systems J500 is a ± 20% range current regulator The J500 is a ±20% range current regulator designed for demanding applications in test equipment and instrumentation. The J500 utilizes JFET techniques to produce a single two-leaded device which is extremely simple to operate. • • • • • • • • Two-Lead Plastic Package Guaranteed ±20% Tolerance Operation up to 50V Excellent Temperature Stability Simple Series Circuitry, No Separate Voltage Source Tight Guaranteed Circuit Performance Excellent Performance in Low-Voltage/Battery Circuits and High-Voltage Spike Protection High Circuit Stability vs. Temperature J500 Applications: • • • Constant-Current Supply [ ... ]

J500 PDF Datasheet Download