BZX38450-B30X

Single Zener Diodes Overview

The BZX38450-B30X is a low-current voltage regulator diode from the Nexperia BZX38450 series, housed in an SOD323 (SC-76) surface-mounted plastic package. It provides a nominal working voltage of 30 V with a ±2% tolerance series designation indicated by the 'B' suffix. The device is specified at a low test current of 50 µA, making it suitable for low bias applications. Key electrical characteristics include a maximum total power dissipation of 300 mW and a forward voltage of 0.9 V at 10 mA. The junction temperature range extends from -55 °C to +150 °C.

Single Zener Diodes Feature Summary

• Designed for low-current general regulation functions with operation specified at a low test current of 50 µA.
• Optimized for portable battery-powered applications due to minimal bias current requirements.
• Features intentional minor rise of leakage current for optimized fast switching and noise reduction.

Single Zener Diodes Applications

• Low-current general regulation functions
• Portable battery-powered applications

Single Zener Diodes Procurement Notes

Verify the specific ordering code BZX38450-B30X against the manufacturer's latest datasheet to confirm the ±2% tolerance selection and 30 V nominal voltage rating. Ensure the SOD323 package dimensions align with the PCB footprint design. Confirm that the application operates within the specified thermal resistance and power dissipation limits under expected ambient conditions.

Single Zener Diodes Selection Notes

Select this component when a precise 30 V reference is required in space-constrained designs utilizing the SOD323 package. The 'B' suffix indicates tighter tolerance compared to the 'C' series, ensuring higher accuracy for sensitive circuits. Consider the low test current specification for energy-efficient systems where standby power consumption must be minimized.

Single Zener Diodes Part Context

This part belongs to the BZX38450 series of low-current voltage regulator diodes manufactured by Nexperia. The series covers a wide working voltage range from 1.8 V to 51 V, offering flexibility for various reference needs. All variants share the same compact SOD323 package and general thermal characteristics, differing primarily in breakdown voltage and tolerance grades.

Single Zener Diodes Replacement Considerations

Direct substitutes within the same series include BZX38450-C30X for a ±5% tolerance variant. Other series members like BZX38450-B27 or BZX38450-B33 may serve as alternatives if voltage adjustments are permissible in the circuit design.

Single Zener Diodes FAQ

What does the 'B' suffix indicate in the BZX38450-B30X part number?

The 'B' suffix denotes that the device belongs to the tolerance series with ±2% accuracy, distinguishing it from the 'C' series which has approximately ±5% tolerance.

At what current is the voltage regulation performance specified?

The electrical characteristics, including working voltage and differential resistance, are specified at a low test current (IZ) of 50 µA.