BZB784-C12-QX

Overview

The Nexperia BZB784-C12-QX is a low-power voltage regulator double diode housed in a SOT323 (SC-70) surface-mounted plastic package. It features a nominal working voltage of 12 V with a tolerance of approximately ±5%. The device has a total power dissipation of 350 mW and operates within an ambient temperature range of -55 °C to +150 °C. Key electrical characteristics include a maximum reverse current of 100 nA, a differential resistance of 25 Ω, and a non-repetitive peak reverse current of 2.5 A.

Feature Summary

• Qualified according to AEC-Q101 for automotive applications
• Dual common anode configuration in a compact SC-70 package
• Approximately 5% Zener voltage tolerance across the E24 range

Applications

• General regulation functions
• ESD protection
• Surge protection

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm packaging details such as reel or cut tape specifications. Ensure the component meets the required AEC-Q101 qualification standards if intended for automotive use. Cross-reference the marking code '9J' with the datasheet to validate authenticity upon receipt.

Selection Notes

Select this component when a dual-diode Zener configuration is required in a minimal footprint. The 12 V breakdown voltage suits reference circuits operating near this threshold. Consider the thermal resistance values when designing PCB layouts to ensure junction temperatures remain within the specified limits under load conditions.

Part Context

This part belongs to the BZB784-Q series, which offers a comprehensive range of nominal working voltages from 2.4 V to 15 V. All types in this series share the same SOT323 package and general electrical structure, differing primarily in their specific Zener voltage ratings and associated leakage currents.

Replacement Considerations

Compatible substitutes within the same family include BZB784-C11-Q and BZB784-C13-Q. These parts share identical packaging and pinout configurations but differ in nominal Zener voltage, requiring circuit adjustment if used as direct replacements.