BZX8450-B3V6-QR

Single Zener Diodes Overview

The BZX8450-B3V6-QR is a low-current voltage regulator diode from the Nexperia BZX8450-Q series, housed in an SOT23 surface-mounted plastic package. It provides a nominal working voltage of 3.6 V with a ±2% tolerance (Series B). The device is specified at a test current of 50 µA, featuring a maximum differential resistance of 7.5 Ω and a reverse current of up to 1.2 µA at 5 mA. It operates within a junction temperature range of -55 °C to +150 °C and supports a total power dissipation of 250 mW.

Single Zener Diodes Feature Summary

• Qualified according to AEC-Q101 for automotive applications
• Specified at a low test current of 50 µA for low bias operation
• Intentional minor rise of leakage current for optimized fast switching

Single Zener Diodes Applications

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

Single Zener Diodes Procurement Notes

Verify the specific ordering suffix matches the required tolerance series and voltage rating. Confirm that the component meets AEC-Q101 qualification requirements if intended for automotive use. Ensure the SOT23 package footprint aligns with the design layout. Check the most recent datasheet revision for any updates to electrical characteristics or marking codes before finalizing procurement specifications.

Single Zener Diodes Selection Notes

Select this component when a precise 3.6 V reference is needed under very low current conditions. The B-series designation indicates tighter tolerance compared to C-series options. Consider the thermal resistance values if operating near ambient temperature limits. Verify that the 50 µA test current condition suits the target circuit's biasing strategy for optimal voltage stability.

Single Zener Diodes Part Context

This part belongs to the BZX8450-Q series of low-current Zener diodes designed for space-constrained surface-mount applications. The series covers a wide voltage range from 1.8 V to 51 V. The 'Q' suffix denotes automotive qualification, while the 'B' indicates the ±2% tolerance variant. These devices are engineered for efficiency in portable electronics where minimal quiescent current is critical.

Single Zener Diodes Replacement Considerations

Direct substitutes include other BZX8450-B3V6-Q variants from Nexperia with identical electrical specifications. Cross-referencing should verify pinout compatibility in the SOT23 package and ensure equivalent AEC-Q101 certification if automotive reliability is required.

Single Zener Diodes FAQ

What is the tolerance class for the BZX8450-B3V6-QR?

The 'B' in the part number indicates a ±2% tolerance series.

At what current is the voltage regulated?

The device is specified at a low test current of 50 µA.