PLVA2668A,215

Overview

The PLVA2668A,215 is a low-voltage avalanche regulator double diode from the PLVA2600A series manufactured by Nexperia. It features two high-performance voltage regulator diodes with common anodes housed in a small SOT-23 plastic surface-mount package. The nominal Zener voltage (VZ) is 6.8 V at a test current of 250 μA, with a tolerance range of 6.6 V to 7.0 V. Total power dissipation is rated at 250 mW for a single loaded diode and 180 mW when both are loaded. Dynamic resistance is limited to 100 Ω, and the reverse leakage current is 10 nA maximum.

Feature Summary

• Very low dynamic impedance at low currents compared to conventional series
• Hard breakdown knee characteristics
• Low noise performance approximately one-tenth of conventional series
• Small working voltage tolerances within the 5.0 to 6.8 V range

Applications

• Low current, low power, low noise applications
• CMOS RAM back-up circuits
• Voltage stabilizers
• Voltage limiters
• Smoke detector relays

Procurement Notes

Verify component authenticity through authorized Nexperia distributors or direct channels. Confirm the marking code matches the specific suffix requirements for manufacturing origin. Ensure storage conditions remain within the specified temperature limits to maintain device integrity prior to assembly.

Selection Notes

Select this component for designs requiring dual common-anode regulation in compact spaces. The SOT-23 package suits high-density PCB layouts. Evaluate thermal constraints carefully as total power dissipation decreases when both diodes are active simultaneously. Verify operating temperatures against the absolute maximum ratings.

Part Context

This part belongs to the PLVA2600A series, which includes variants ranging from PLVA2650A to PLVA2668A. All members share the same SOT-23 package and general electrical architecture but differ in nominal Zener voltage. The series is designed for low-voltage avalanche regulation applications requiring minimal footprint.

Replacement Considerations

Direct substitutes within the same series include PLVA2650A, PLVA2653A, PLVA2656A, PLVA2659A, PLVA2662A, and PLVA2665A. These parts share identical packaging and configuration but offer different nominal voltages. Cross-series replacements require careful evaluation of voltage and impedance parameters.