PZU9.1DB2,115

Overview

The Nexperia PZU9.1DB2,115 is a dual isolated Zener diode in an SOT353 (SC-88A) package. It features two independent diodes within a single dark-green, halogen-free plastic surface-mount device. The nominal working voltage is 9.1 V with a tolerance of approximately ±2%. Total power dissipation is limited to 250 mW at ambient temperatures up to 25 °C. Each diode supports a non-repetitive peak reverse power dissipation of 40 W. The component is qualified under the AEC-Q101 standard for automotive applications and operates within a junction temperature range of -55 °C to +150 °C.

Feature Summary

• Dual isolated diode configuration allowing independent operation within a compact footprint
• High precision voltage regulation with approximately ±2% tolerance series
• Halogen-free dark-green plastic package suitable for surface-mounted design
• Automotive grade qualification compliant with AEC-Q101 standards

Applications

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

Procurement Notes

Verify the specific ordering suffix against current Nexperia documentation to ensure correct packaging and halogen-free status. Confirm that the SOT353 package dimensions align with the target PCB footprint requirements. Check for any recent lifecycle notifications or longevity program updates regarding availability for this specific part number before finalizing procurement plans.

Selection Notes

Select this component when space-constrained designs require two independent voltage references or regulators. The ±2% tolerance makes it suitable for precision applications compared to standard 5% variants. Ensure the total power dissipation constraints are respected in the thermal design, as the dual configuration shares a common thermal path within the small SOT353 package.

Part Context

This device belongs to the PZUxDB2 series, which offers a wide range of nominal voltages from 2.7 V to 24 V. The series utilizes the SOT353 package to provide a compact solution for high-density circuit designs. It serves as a discrete alternative to integrated voltage regulator ICs where simple zener clamping or referencing is sufficient.

Replacement Considerations

Direct replacements must match the dual isolated topology and SOT353 pinout. Verify that substitute components meet the same AEC-Q101 qualification if automotive reliability is required. Ensure the replacement maintains the ±2% voltage tolerance and similar thermal characteristics.