BZB84-C20-QR

Overview

The Nexperia BZB84-C20-QR is a dual voltage regulator diode in a SOT-23 surface-mounted package. It features a common anode configuration with two independent cathodes. The device provides a nominal Zener voltage of 20 V with a tolerance of approximately ±5%. Key electrical parameters include a total power dissipation of 300 mW, a maximum reverse current of 55 μA at 2 mA test current, and a differential resistance of 14 Ω. The component operates within a junction temperature range of -55 °C to +150 °C and is qualified according to AEC-Q101 standards for automotive applications.

Feature Summary

• Dual common anode configuration integrating two independent Zener diodes in a single compact SOT-23 package.
• Automotive-grade qualification compliant with AEC-Q101 standards for high reliability.
• Wide operating temperature range supporting junction temperatures from -55 °C to +150 °C.

Applications

• General regulation functions
• Voltage reference circuits
• Over-voltage protection

Procurement Notes

Verify the specific ordering suffix against the manufacturer's latest documentation to ensure correct packaging and tape-and-reel specifications. Confirm that the selected variant matches the required tolerance series and marking code for production integration. Cross-reference the part number with official distributor catalogs to validate availability and lead times prior to procurement planning.

Selection Notes

Select this component when a dual Zener solution with a common anode is required in a space-constrained design. The C-series offers approximately ±5% voltage tolerance, suitable for general-purpose regulation where tighter precision is not critical. Ensure the application current remains within the specified limits to maintain thermal stability and prevent exceeding the 300 mW total power dissipation rating.

Part Context

This device belongs to the Nexperia BZB84-Q series, which comprises various dual voltage regulator diodes. The series covers a wide working voltage range from 2.4 V to 75 V in E24 values. All variants share the same SOT-23 plastic package and AEC-Q101 automotive qualification, providing designers with a standardized footprint for different voltage requirements.

Replacement Considerations

Compatible substitutes include other BZB84-Q series parts with identical pinout and package dimensions, such as BZB84-B20-QR or BZB84-C22-QR, provided the voltage tolerance and Zener voltage specifications align with the circuit design requirements.