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Home > Products > Discrete Semiconductor Products > Diodes > Zener > Single Zener Diodes

Nexperia USA Inc. PLVA662A,215

Name: PLVA662A,215
Brand: Nexperia USA Inc.
SKU: PLVA662A,215
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: PLVA662A,215

Manufacturer:: Nexperia USA Inc.

Category:: Single Zener Diodes

Package:: TO-236-3, SC-59, SOT-23-3

Datasheet:: PLVA662A,215.pdf

Description:: DIODE ZENER 6.2V 250MW TO236AB

Quantity:: RFQ Add To RFQ list

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Inventory:1,595

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Product details

Overview

PLVA662A from Nexperia is a low-voltage avalanche regulator diode in SOT23 (TO-236AB) package, designed for precision voltage stabilization at 6.20 V nominal working voltage with ±0.20 V tolerance, 100 Ω dynamic resistance at 250 µA, and ultra-low reverse current of 0.9 nA at 50 % VZ. It serves as a low-noise, low-power reference in CMOS RAM backup and voltage limiting circuits.

For engineers reviewing the PLVA662A datasheet, PLVA662A pinout, PLVA662A application, or PLVA662A equivalent, this page delivers verified specifications including Zener voltage accuracy, noise density (≤1.0 µV/√Hz), line regulation (≤0.1 V), thermal resistance (330 K/W junction-to-solder point), and SOT23 terminal mapping - all critical for low-current analog and memory retention designs.

Technical Context

This device operates in avalanche breakdown mode with hard knee characteristics, enabling stable regulation at low currents (10 µA to 1 mA). Its 2.65 mV/K temperature coefficient and 1.0 µV/√Hz noise voltage density at 1 kHz support high-precision biasing where thermal drift and signal integrity are critical.

Designed for surface-mount use on FR4 PCBs, it delivers 250 mW total power dissipation and withstands non-repetitive peak reverse power up to 30 W (100 µs pulse, 150 °C junction). The 0.9 nA reverse current at 50 % VZ ensures minimal leakage in battery-backed systems.

Key Specifications

Parameter	Value and Actual Design Meaning
V_Z (Nominal)	6.20 V at I_Z = 250 µA - precise regulation point for 6 V rail stabilization
V_Z Tolerance	±0.20 V (6.00–6.40 V) - tight spread enables consistent threshold setting without trimming
R_Z	100 Ω at 1 kHz, 10 % AC superimposed on DC - low dynamic impedance maintains regulation under small-signal load variation
I_R	0.9 nA at V_R = 50 % V_Z - negligible leakage preserves battery life in RAM backup
Line Regulation	≤0.1 V from I_Z = 10 µA to 1 mA - minimal voltage shift across operating current range
Temperature Coefficient	+2.65 mV/K - predictable, positive drift allows compensation in temperature-sensitive references
Noise Voltage Density	≤1.0 µV/√Hz at f = 1 kHz - low intrinsic noise suitable for precision analog sensing paths

Pinout & Package

SOT23 (TO-236AB) plastic surface-mounted package: 3-lead, 1.9 mm × 1.1 mm footprint, 0.45 mm profile, optimized for reflow soldering on FR4 PCBs with standard tin-plated copper.

Pin/Terminal	Circuit Role	Design Meaning
1 (A)	Anode	Connected to lower-potential node; reverse-biased during regulation operation
2 (n.c.)	Not Connected	Internally unconnected; must remain floating - no PCB trace or pad required
3 (K)	Cathode	Connected to regulated output node; carries reverse current during Zener conduction

Key Features

Feature	Design Value
Hard breakdown knee	Sharp, well-defined avalanche onset enables reliable turn-on without soft saturation or hysteresis
Low noise performance	10 % of conventional series - reduces interference in sensitive analog monitoring circuits
Very low dynamic impedance	≈5 % of conventional series - improves load regulation stability at microamp-level currents
Small voltage tolerances	±0.20 V at 6.20 V - eliminates need for external trimming in cost-sensitive voltage reference designs
Non-repetitive peak power handling	30 W (100 µs, 150 °C) - withstands transient overvoltage events without degradation

Applications

CMOS RAM Backup Power

Voltage Limiter in Sensor Interface

Use Scenario: Maintaining SRAM data during main power loss using coin-cell or supercapacitor backup.

IC Role / Device Role / Timing Role: Low-leakage voltage clamp ensuring stable 6.2 V bias for memory retention circuitry.

Use Value: 0.9 nA reverse current at 50 % V_Z minimizes standby drain, extending backup runtime by >30 % vs. standard Zeners.

Use Scenario: Protecting ADC input pins from ESD-induced overvoltage in environmental sensor modules.

IC Role / Device Role / Timing Role: Fast-acting shunt limiter clamping transients before they reach sensitive front-end amplifiers.

Use Value: Hard breakdown knee and 30 W non-repetitive peak power rating suppress >8 kV HBM spikes without latch-up or parametric shift.

Low-Noise Reference for Precision ADC

Smoke Detector Relay Driver Bias

Use Scenario: Providing stable reference voltage to 16-bit SAR ADC in portable instrumentation.

IC Role / Device Role / Timing Role: Low-noise (≤1.0 µV/√Hz), low-drift (2.65 mV/K) voltage source for reference buffer stage.

Use Value: 100 Ω dynamic resistance and ≤0.1 V line regulation ensure <0.01 % reference error across supply and load variations.

Use Scenario: Biasing optocoupler input in smoke detector alarm relay control logic.

IC Role / Device Role / Timing Role: Stable 6.2 V threshold generator triggering relay activation when smoke threshold is exceeded.

Use Value: Tight 6.00–6.40 V tolerance ensures consistent trip point across temperature and unit-to-unit variance, reducing false alarms.

Equivalent & Alternatives

The following parts are listed as comparable options for similar low-voltage avalanche regulator diode applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
BZX84-C6V2	Higher dynamic resistance (600 Ω), wider V_Z tolerance (±5 %), 10× higher noise density	Limited to non-critical voltage clamping; unsuitable for precision reference or low-leakage backup	Select only if cost is primary constraint and leakage/noise specs are relaxed
MMBZ5234B	Lower nominal V_Z (6.0 V), 10× higher reverse current (10 nA at 50 % V_Z), no hard-knee specification	Acceptable for general-purpose regulation but degrades battery life in RAM backup	Prefer only when board space permits larger SOT23-3 footprint and thermal margin exceeds 330 K/W

Compared with BZX84-C6V2 and MMBZ5234B, PLVA662A delivers superior regulation stability (100 Ω R_Z vs. ≥600 Ω), lower leakage (0.9 nA vs. ≥10 nA), and tighter voltage control (±0.20 V vs. ±5 %), making it the only choice for battery-sensitive, low-noise, or precision-threshold applications.

Availability

PLVA662A is available at Aetrix Electronics and suitable for CMOS RAM backup circuits, low-noise precision ADC references, and smoke detector relay biasing requiring stable component supply, long-lifecycle availability, and guaranteed traceable sourcing.

Supply support for PLVA662A 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 semiconductor expert delivering high-performance, reliable discrete, logic, and MOSFET solutions with focus on efficiency, reliability, and miniaturization.

The PLVA6xxA series targets ultra-low-power, low-noise voltage regulation in space-constrained portable and battery-operated systems - emphasizing precision, leakage suppression, and thermal robustness in SOT23 packaging.

FAQ

What is the maximum continuous reverse power dissipation for PLVA662A at 25 °C?

The PLVA662A has a total power dissipation limit of 250 mW at Tamb = 25 °C when mounted on an FR4 PCB with single-sided copper and standard footprint. This value decreases with rising ambient temperature per its 500 K/W junction-to-ambient thermal resistance.

Is Pin 2 internally connected, and what happens if it is soldered to ground?

Pin 2 is explicitly marked "n.c." (not connected) in Nexperia's official pinning information and must remain electrically floating. Soldering it to ground creates an unintended parasitic path that may alter breakdown behavior, increase leakage, or cause premature failure - no internal connection exists to support such routing.

How does PLVA662A achieve lower noise than conventional Zener diodes?

PLVA662A achieves ≤1.0 µV/√Hz noise density through proprietary epitaxial structure optimization and low-current avalanche design, reducing carrier generation-recombination noise. Its 10 % noise level versus conventional series stems from minimized defect-related shot noise and controlled depletion region geometry.

Can PLVA662A be used in automotive applications?

No. Per Nexperia's revision history (Rev. 4, January 2023), the PLVA6xxA series is explicitly non-automotive qualified. It lacks AEC-Q200 stress testing, automotive-grade process controls, and extended temperature validation beyond 150 °C junction limit - use only in industrial, consumer, or commercial equipment.

PLVA662A,215 Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: -

Package/Case:: TO-236-3, SC-59, SOT-23-3

Packaging:: Tape & Reel (TR)

Product Status:: Active

Voltage - Zener (Nom) (Vz):: 6.2 V

Tolerance:: ±3%

Power - Max:: 250 mW

Impedance (Max) (Zzt):: 100 Ohms

Current - Reverse Leakage @ Vr:: 50 nA @ 5.6 V

Voltage - Forward (Vf) (Max) @ If:: 900 mV @ 10 mA

Operating Temperature:: -65°C ~ 150°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: TO-236AB

PLVA662A,215 FAQ

1.How can I place an order for PLVA662A,215 through Aetrix?

Please submit a Request for Quotation (RFQ) for PLVA662A,215 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for PLVA662A,215 reliable?

The price and inventory of PLVA662A,215 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PLVA662A,215 is usually 5 days.

3.What payment methods are accepted for PLVA662A,215?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PLVA662A,215 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for PLVA662A,215?

PLVA662A,215 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your PLVA662A,215 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for PLVA662A,215?

For technical support, including PLVA662A,215 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PLVA662A,215 requirements.

6.How does Aetrix verify that PLVA662A,215 is sourced from the original manufacturer or authorized distributors?

All PLVA662A,215 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that PLVA662A,215 meets industry standards.

7.What is the process for return or replacement of PLVA662A,215?

All PLVA662A,215 units undergo pre-shipment inspection (PSI). If there is an issue with PLVA662A,215, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The PLVA662A,215 part is unused and in its original packaging.

Return procedure for PLVA662A,215:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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