NXP Semiconductors PLVA2665A,215

Overview

PLVA2665A,215 from Nexperia is a low-voltage avalanche regulator double diode with common anode configuration in SOT23 package, rated for 6.5 V nominal working voltage at 250 µA, 100 Ω typical dynamic resistance, <50 nA reverse current at 80% V_Z, and 250 mW total power dissipation. It serves as a precision voltage reference and noise-sensitive limiter in CMOS RAM backup and smoke detector relay circuits.

For engineers reviewing the PLVA2665A,215 datasheet, PLVA2665A,215 pinout, PLVA2665A,215 application, or PLVA2665A,215 equivalent, key selection criteria include low-current Zener regulation stability, ultra-low noise density (≤1.0 µV/√Hz), hard breakdown knee behavior, and dual-cathode/common-anode topology for compact biasing in space-constrained low-power systems.

Technical Context

The PLVA2665A,215 integrates two matched avalanche Zener diodes sharing a single anode terminal, enabling independent cathode referencing while minimizing board area. Its design targets sub-1 mA regulation with minimal voltage drift-temperature coefficient is +2.90 mV/K at 250 µA, and line regulation is ≤0.1 V across 10 µA to 1 mA load variation.

It operates within a 6.30–6.70 V working voltage range (IZ = 250 µA), exhibits <0.9 nA reverse current at 50% V_Z, and maintains <50 nA leakage at 80% V_Z, making it suitable for battery-backed memory retention where standby current must remain below 100 nA.

Key Specifications

Pinout & Package

SOT23 plastic surface-mounted package (TO-236AB), 3-lead, dimensions per JEDEC MO-203AA: 2.9 × 1.3 × 1.0 mm (L × W × H), with gull-wing leads and thermal pad omitted.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar low-current Zener regulation applications.

Compared with BZX84-C6V2,215 and PLVA2662A,215, the PLVA2665A,215 provides higher regulation voltage headroom for 5 V-tolerant interfaces, retains dual-cathode flexibility for redundant sensing, and delivers superior leakage performance critical for decade-long battery operation.

Availability

PLVA2665A,215 is available at Aetrix Electronics and suitable for CMOS RAM backup circuits, smoke detector relay drivers, low-noise ADC references, and MEMS sensor bias networks requiring stable component supply across long-lifecycle industrial and consumer programs.

Supply support for PLVA2665A,215 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Nexperia is a global leader in discrete, logic, and PowerMOS semiconductors, formed in 2017 from the former NXP Standard Products business, with focus on automotive, industrial, computing, and consumer markets.

The PLVA2600A series belongs to Nexperia's low-voltage avalanche regulator diode product line, engineered specifically for ultra-low-current, low-noise voltage reference and clamping in battery-powered and safety-critical systems.

FAQ

What is the maximum continuous forward current rating for PLVA2665A,215?

The PLVA2665A,215 has a maximum continuous forward current (I_F) of 250 mA per diode, as specified in the Absolute Maximum Ratings table. This rating applies under standard FR4 PCB mounting conditions at T_amb = 25 °C and is intended for short-duration forward conduction, not sustained Zener operation.

Can PLVA2665A,215 be used in place of a single Zener diode?

Yes - either cathode (Pin 1 or Pin 2) can be used independently with the common anode (Pin 3) grounded, effectively operating as a standalone 6.5 V Zener. The unused cathode remains electrically isolated and does not affect regulation performance or leakage.

What is the thermal resistance from junction to ambient for this device?

The junction-to-ambient thermal resistance (R_{th j-a}) is 500 K/W when mounted on a standard FR4 PCB, per the Thermal Characteristics table. This value assumes no copper pour or thermal vias; adding 1 cm² of 2-oz copper connected to Pin 3 reduces R_{th j-a} by ~35%.

Does PLVA2665A,215 meet AEC-Q200 stress test requirements?

No - the PLVA2665A,215 is not qualified to AEC-Q200. It is specified for industrial and consumer applications. For automotive-grade equivalents, Nexperia offers the PZUxxB series, which undergoes full AEC-Q200 testing including temperature cycling and humidity bias.