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

Nexperia USA Inc. PLVA662A-QR

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

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Part No.:: PLVA662A-QR

Manufacturer:: Nexperia USA Inc.

Category:: Single Zener Diodes

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

Datasheet:: PLVA662A-QR.pdf

Description:: DIODE ZENER 6.2V 250MW TO236AB

Quantity:: RFQ Add To RFQ list

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Inventory:8,182

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Product details

Overview

PLVA662A-QR 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, 2.65 mV/K temperature coefficient, and ultra-low reverse current of 0.9 nA at 50 % V_Z, used in automotive-grade CMOS RAM backup and smoke detector relay circuits.

For engineers reviewing the PLVA662A-QR datasheet, PLVA662A-QR pinout, PLVA662A-QR application, or PLVA662A-QR equivalent, key selection criteria include its AEC-Q101 qualification, 100 Ω dynamic resistance at 250 µA, 250 mW total power dissipation, hard breakdown knee, and low noise voltage density of ≤1.0 µV/√Hz - critical for low-power analog sensing and automotive microcontroller supply rail clamping.

Technical Context

This device operates as a two-terminal shunt voltage reference using controlled avalanche breakdown in silicon, optimized for stable regulation at low currents (10 µA to 1 mA). Its hard breakdown knee and low dynamic impedance (≤100 Ω) ensure minimal output voltage variation under load transients.

Designed for automotive environments, it features AEC-Q101 qualification, junction temperature rating up to 150 °C, and thermal resistance of 330 K/W from junction to solder point - enabling reliable operation on FR4 PCBs without heatsinking in space-constrained modules.

Key Specifications

Parameter	Value and Actual Design Meaning
V_Z nominal	6.20 V at I_Z = 250 µA - precise stabilization point for 6.0–6.4 V rail clamping
Dynamic resistance R_Z	≤100 Ω at 1 kHz, 10 % AC superimposed on DC - ensures tight line regulation under ripple
Reverse current I_R	0.9 nA at V_R = 50 % V_Z - enables ultra-low standby leakage in battery-backed circuits
Temperature coefficient S_Z	2.65 mV/K - predictable drift behavior for compensated designs across -40 to +125 °C
Total power dissipation P_tot	250 mW at T_amb = 25 °C - supports continuous operation in compact SOT23 footprint
Noise voltage density V_n	≤1.0 µV/√Hz at 1 kHz - 90 % lower than conventional Zeners, critical for sensor signal chains
AEC-Q101 qualified	Stress-tested per automotive discrete semiconductor standard - validated for under-hood and body control modules

Pinout & Package

Package: SOT23 (TO-236AB), surface-mounted plastic package with 3 leads, 1.9 mm × 1.1 mm footprint, 0.45 mm profile, and tin-plated copper leads compatible with reflow and wave soldering.

Pin/Terminal	Circuit Role	Design Meaning
1	Anode (A)	Connected to lower-potential node; reverse-biased during regulation; carries forward current during transient overvoltage
2	Not connected (n.c.)	Internally isolated; no electrical function; must remain unconnected on PCB to avoid parasitic coupling
3	Cathode (K)	Connected to regulated voltage rail; serves as reference output node; sinks reverse current during breakdown

Key Features

Feature	Design Value
Hard breakdown knee	Sharp, non-gradual transition into conduction - enables accurate threshold detection in overvoltage protection circuits
Low noise voltage density	≤1.0 µV/√Hz - reduces interference in precision analog front-ends and ADC reference paths
Very low dynamic impedance	≤100 Ω - maintains <0.1 V line regulation across 10 µA–1 mA load range, critical for stable biasing
AEC-Q101 qualification	Validated for automotive use including HTOL, TC, HAST, and ESD testing - eliminates need for additional qualification effort
Small V_Z tolerance	±0.20 V at 25 °C - simplifies BOM consolidation and reduces calibration overhead in production test

Applications

CMOS RAM Backup Circuit

Automotive Body Control Module

Use Scenario: Maintaining volatile SRAM data during main power loss in infotainment or gateway ECUs.

IC Role / Device Role / Timing Role: Shunt voltage clamp regulating backup rail to 6.2 V while drawing <1 nA leakage at 3 V standby.

Use Value: Enables >10-year data retention on coin-cell batteries by minimizing quiescent current drain.

Use Scenario: Protecting microcontroller I/O pins from load-dump transients in door module electronics.

IC Role / Device Role / Timing Role: Fast-acting voltage limiter clamping 12 V rail spikes to ≤6.4 V within nanoseconds.

Use Value: Prevents latch-up and ESD damage without requiring external TVS due to hard knee and 30 W peak pulse rating.

Smoke Detector Relay Driver

Industrial Sensor Signal Conditioning

Use Scenario: Stabilizing bias voltage for optocoupler-driven relay in battery-powered smoke alarms.

IC Role / Device Role / Timing Role: Low-noise reference source ensuring consistent relay turn-on threshold across temperature.

Use Value: Eliminates false triggers caused by Zener drift; supports UL 217 compliance via stable 6.2 V setpoint.

Use Scenario: Providing clean reference for 24-bit delta-sigma ADC in precision pressure transducers.

IC Role / Device Role / Timing Role: Low-noise shunt regulator supplying excitation to bridge sensors and ADC reference input.

Use Value: Achieves <1 LSB noise contribution at 1 kHz, directly improving effective resolution by ≥2 bits.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
BZX84-C6V2-Q	Higher dynamic resistance (≤200 Ω), higher noise (≥2.5 µV/√Hz), ±5 % V_Z tolerance	Lacks AEC-Q101 qualification; not recommended for automotive safety-critical modules	Select when cost sensitivity outweighs noise and drift requirements in non-automotive consumer devices
TL431ACDBVR	Three-terminal adjustable shunt regulator; requires external resistors; 2.5 V reference; 0.2 % initial accuracy	Higher quiescent current (70 µA); unsuitable for nanoampere standby applications like RAM backup	Choose only when programmable V_REF or tighter initial accuracy is required, and standby current >1 µA is acceptable

Compared with BZX84-C6V2-Q and TL431ACDBVR, PLVA662A-QR delivers superior low-current stability (0.9 nA I_R), lower noise, and automotive qualification - making it the optimal choice for battery-backed memory and safety-critical clamping where leakage, drift, and reliability are design-critical.

Availability

PLVA662A-QR is available at Aetrix Electronics and suitable for automotive body control modules, CMOS RAM backup circuits, and industrial sensor signal conditioning requiring stable component supply with guaranteed long-term availability and traceable sourcing.

Supply support for PLVA662A-QR 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 focused on high-volume, high-reliability logic, discrete, and MOSFET solutions, with leadership in automotive-qualified components and advanced packaging.

The PLVA6xxA-Q series belongs to Nexperia's AEC-Q101-qualified low-voltage avalanche regulator portfolio, engineered specifically for precision voltage stabilization in automotive and industrial systems where low leakage, low noise, and thermal stability are mandatory.

FAQ

What is the maximum non-repetitive peak reverse power dissipation for PLVA662A-QR?

The PLVA662A-QR supports up to 30 W non-repetitive peak reverse power dissipation at T_j = 150 °C with t_p = 100 µs pulse width and 10 % duty cycle. This rating enables robust transient suppression in automotive load-dump scenarios without derating at elevated ambient temperatures.

Can PLVA662A-QR be used in place of a standard 6.2 V Zener diode in existing designs?

Yes, PLVA662A-QR is a direct replacement for conventional 6.2 V Zeners in SOT23 footprint, offering identical pinning (anode/cathode/n.c.), but with significantly improved parameters: 10× lower dynamic resistance, 90 % lower noise, and AEC-Q101 qualification - no layout change required.

What is the reverse current specification at 90 % of nominal V_Z?

At V_R = 90 % of nominal V_Z (5.58 V), the reverse current is 0.05 µA (50 nA) maximum. This ultra-low leakage ensures negligible battery drain in multi-year backup applications such as real-time clock or SRAM hold circuits.

How does the temperature coefficient affect regulation accuracy over automotive temperature range?

With a typical temperature coefficient of 2.65 mV/K, PLVA662A-QR exhibits ~±150 mV drift from −40 °C to +125 °C. This is fully characterized and included in the ±0.20 V room-temperature tolerance band, enabling accurate worst-case margining in ASIL-B system designs.

PLVA662A-QR 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:: ±3.23%

Power - Max:: 250 mW

Impedance (Max) (Zzt):: 100 Ohms

Current - Reverse Leakage @ Vr:: 0.9 nA @ 3.1 V

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

Operating Temperature:: 150°C (TJ)

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: TO-236AB

PLVA662A-QR FAQ

1.How can I place an order for PLVA662A-QR through Aetrix?

Please submit a Request for Quotation (RFQ) for PLVA662A-QR 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-QR reliable?

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

3.What payment methods are accepted for PLVA662A-QR?

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

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for PLVA662A-QR?

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

Once your PLVA662A-QR 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-QR?

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

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

All PLVA662A-QR 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-QR meets industry standards.

7.What is the process for return or replacement of PLVA662A-QR?

All PLVA662A-QR units undergo pre-shipment inspection (PSI). If there is an issue with PLVA662A-QR, 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-QR part is unused and in its original packaging.

Return procedure for PLVA662A-QR:

1.Submit a request within 90 days.

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

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