The 2N5551 is an NPN bipolar junction transistor designed primarily for high-voltage, low-current applications. It is widely used in electronic circuits for its ability to handle relatively high voltages and moderate current levels.
The central semiconductor CDCLD current regulator diode is now available from Mouser with current values ranging from 27.5mA to 575mA and maximum voltage range from 1.5V to 2V. The diode is packaged in an industry standard DPAK surface mount package that meets RoHS and REACH standards