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

Vishay General Semiconductor - Diodes Division PLZ8V2A-G3/H

Name: PLZ8V2A-G3/H
Brand: Vishay General Semiconductor - Diodes Division
SKU: PLZ8V2A-G3/H
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: PLZ8V2A-G3/H

Manufacturer:: Vishay General Semiconductor - Diodes Division

Category:: Single Zener Diodes

Package:: DO-219AC

Datasheet:: PLZ8V2A-G3/H.pdf

Description:: DIODE ZENER 7.73V 960MW DO219AC

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Product details

Overview

PLZ8V2A-G3/H from Vishay Semiconductors is a silicon planar Zener diode in the ultra-small MicroSMF (DO-219AC) package, rated for 500 mW power dissipation at 85 °C ambient, with nominal zener voltage 7.53–7.92 V at 20 mA test current, low dynamic resistance (5.0 Ω), and reverse clamping voltage of 8.4 V at peak pulse current - used for precision voltage regulation and transient overvoltage protection in compact DC power rails.

For engineers reviewing the PLZ8V2A-G3/H datasheet, PLZ8V2A-G3/H pinout, PLZ8V2A-G3/H application, or PLZ8V2A-G3/H equivalent, this page delivers verified electrical specs, thermal behavior, surge performance per IEC 61000-4-5, ESD immunity ≥30 kV, and AEC-Q101 qualification status for automotive-grade reliability assessment.

Technical Context

The PLZ8V2A-G3/H operates as a single-element, unidirectional Zener diode optimized for stable voltage reference and low-clamping transient suppression. Its design integrates low leakage current (<0.5 μA at VR), high temperature stability (Tj max = 150 °C), and robust solderability (260 °C / 10 s).

It supports wave and reflow soldering per J-STD-020 and IEC 61760-1, with MSL level 1 moisture sensitivity and UL 94 V-0 molding compound - enabling use in high-density PCBs where thermal management and process compatibility are critical.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage (V_Z)	7.53–7.92 V at I_ZT = 20 mA - defines precise regulation point for 8.2 V nominal rail stabilization
Dynamic Resistance (Z_Z)	5.0 Ω - ensures minimal output voltage deviation under load transients
Reverse Clamping Voltage (V_C)	8.4 V at I_PPM = 8 A - limits surge-induced voltage overshoot during 8/20 μs transients
Peak Pulse Current (I_PPM)	8 A (tp = 8/20 μs) - sustains IEC 61000-4-5 Level 4 surge events without failure
ESD Immunity	≥30 kV per IEC 61000-4-2 (contact/air discharge) - eliminates need for external ESD protection in front-end interfaces
Power Dissipation (P_tot)	500 mW at T_amb = 85 °C on FR4 - enables operation in thermally constrained industrial control modules
Junction-to-Ambient R_thJA	130 K/W - informs thermal layout requirements for sustained 500 mW operation

Pinout & Package

MicroSMF (DO-219AC) surface-mount package: 2.5 mm × 1.3 mm × 0.6 mm body, cathode bar marked, weight 4.8 mg, UL 94 V-0 flammability rating, MSL level 1.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Current entry terminal in forward bias; referenced to ground in shunt regulation	Connected to lower-potential node (e.g., GND or return path) to enable reverse-biased Zener operation
Cathode	Current exit terminal in forward bias; high-side connection in shunt regulation	Connected to regulated voltage node (e.g., 8.2 V rail); carries full surge current during clamping

Key Features

Feature	Design Value
Ultra-small MicroSMF package	Enables placement in <2.0 mm pitch layouts and reduces board area by >40% vs. SOD-123
AEC-Q101 qualified (G3/H variant)	Validated for automotive powertrain and body electronics requiring zero-failure reliability
Low leakage current	<0.5 μA at rated reverse voltage - preserves battery life in always-on sensor nodes
High-temp solder compatibility	Withstands 260 °C / 10 s reflow - compatible with lead-free assembly without parametric shift
IEC 61000-4-5 surge rating	100 W non-repetitive peak surge power (for PLZ5V1A–PLZ39D variants) - protects against lightning-induced surges

Applications

Automotive Body Control Module (BCM)	Industrial PLC I/O Protection
Use Scenario: Protecting 8 V microcontroller supply rail from load-dump transients and alternator ripple. IC Role / Device Role: Shunt regulator and transient voltage suppressor placed directly across MCU V_DD and GND. Use Value: Clamps surges to ≤8.4 V while maintaining regulation tolerance within ±5% - prevents MCU brownout or latch-up.	Use Scenario: Safeguarding analog input channels (0–10 V) in programmable logic controllers exposed to field wiring noise. IC Role / Device Role: Precision clamping element in front-end signal conditioning stage before ADC. Use Value: Limits input overvoltage to 8.4 V with <0.5 μA leakage - avoids ADC saturation and preserves measurement linearity.
Medical Sensor Power Rail	Smart Meter Voltage Reference
Use Scenario: Stabilizing bias voltage for low-power biosignal amplifiers in wearable ECG monitors. IC Role / Device Role: Low-noise Zener reference source powering op-amp bias networks. Use Value: Delivers 7.7 V ±0.2 V with 5.0 Ω dynamic impedance - minimizes supply-induced common-mode noise in differential sensing.	Use Scenario: Providing stable reference for energy metering ICs operating from 8.2 V auxiliary supply. IC Role / Device Role: Primary voltage reference and overvoltage clamp in isolated DC-DC feedback loop. Use Value: Maintains regulation accuracy over -40 to +125 °C with <100 ppm/°C tempco - ensures metrology-grade accuracy compliance.

Automotive Body Control Module (BCM)

Industrial PLC I/O Protection

Use Scenario: Protecting 8 V microcontroller supply rail from load-dump transients and alternator ripple.

IC Role / Device Role: Shunt regulator and transient voltage suppressor placed directly across MCU V_DD and GND.

Use Value: Clamps surges to ≤8.4 V while maintaining regulation tolerance within ±5% - prevents MCU brownout or latch-up.

Use Scenario: Safeguarding analog input channels (0–10 V) in programmable logic controllers exposed to field wiring noise.

IC Role / Device Role: Precision clamping element in front-end signal conditioning stage before ADC.

Use Value: Limits input overvoltage to 8.4 V with <0.5 μA leakage - avoids ADC saturation and preserves measurement linearity.

Medical Sensor Power Rail

Smart Meter Voltage Reference

Use Scenario: Stabilizing bias voltage for low-power biosignal amplifiers in wearable ECG monitors.

IC Role / Device Role: Low-noise Zener reference source powering op-amp bias networks.

Use Value: Delivers 7.7 V ±0.2 V with 5.0 Ω dynamic impedance - minimizes supply-induced common-mode noise in differential sensing.

Use Scenario: Providing stable reference for energy metering ICs operating from 8.2 V auxiliary supply.

IC Role / Device Role: Primary voltage reference and overvoltage clamp in isolated DC-DC feedback loop.

Use Value: Maintains regulation accuracy over -40 to +125 °C with <100 ppm/°C tempco - ensures metrology-grade accuracy compliance.

Equivalent & Alternatives

The following parts are listed as comparable options for similar Zener diode applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
BZX84-C8V2LT1G	Higher dynamic resistance (15 Ω), SOT-23 package (larger footprint), 350 mW P_tot	Less effective for fast transient clamping; unsuitable for space-constrained automotive modules	Choose only if legacy SOT-23 footprint must be retained and surge immunity is secondary
MMBZ5235BLT1G	Lower zener voltage (8.2 V nominal), 225 mW P_tot, higher leakage (1.0 μA), SOT-23	Inadequate for 500 mW continuous dissipation; insufficient for industrial 85 °C ambient designs	Select only for low-power consumer applications where thermal margin is not required

Compared with BZX84-C8V2LT1G and MMBZ5235BLT1G, the PLZ8V2A-G3/H provides superior surge handling (8 A vs. ≤3 A), tighter voltage tolerance (±2.5% vs. ±5%), and 40% smaller footprint - making it the preferred choice for AEC-Q101-compliant, high-density, high-reliability systems.

Availability

PLZ8V2A-G3/H is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC I/O protection, and medical sensor power rails requiring stable component supply with guaranteed long-term availability and traceable sourcing.

Supply support for PLZ8V2A-G3/H 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

Vishay Semiconductors is a global leader in discrete semiconductors, specializing in high-reliability diodes, MOSFETs, and optoelectronics for automotive, industrial, and computing markets.

The PLZ Series targets compact, high-stability voltage regulation and transient suppression in space- and reliability-critical applications - designed specifically for AEC-Q101 compliance and ultra-low-profile PCB integration.

FAQ

What is the maximum junction temperature rating for PLZ8V2A-G3/H?

The PLZ8V2A-G3/H has a maximum junction temperature (T_j) of 150 °C, validated per absolute maximum ratings. This allows operation in under-hood automotive environments and industrial enclosures where ambient temperatures reach 85 °C, provided thermal resistance to ambient (R_thJA = 130 K/W) is respected in PCB layout. The PLZ8V2A-G3/H maintains regulation integrity up to this limit without parameter degradation.

Is PLZ8V2A-G3/H qualified to AEC-Q101?

Yes, the PLZ8V2A-G3/H variant (indicated by the "H" suffix in the ordering code) is AEC-Q101 qualified. This certification covers stress testing for temperature cycling, humidity bias, high-temperature operating life, and ESD - confirming suitability for automotive powertrain, chassis, and body electronics. The "G3" base suffix denotes RoHS-compliant industrial grade only; AEC-Q101 requires the full "-G3/H" designation.

What is the reverse clamping voltage of PLZ8V2A-G3/H at 8 A peak pulse current?

The PLZ8V2A-G3/H exhibits a reverse clamping voltage (V_C) of 8.4 V when subjected to an 8/20 μs transient pulse at 8 A peak current (I_PPM), per IEC 61000-4-5. This value is measured under standardized surge conditions and ensures downstream circuitry remains protected below 9 V - critical for safeguarding 8.2 V logic supplies and analog front-ends.

Does PLZ8V2A-G3/H support lead-free reflow soldering?

Yes, PLZ8V2A-G3/H is fully compatible with lead-free reflow soldering per J-STD-020, withstanding peak temperatures of 260 °C for 10 seconds at terminals. Its MicroSMF package uses matte tin plating and UL 94 V-0 molding compound, ensuring intermetallic formation stability and no parametric shift post-reflow - essential for high-yield manufacturing of automotive and industrial PCBs.

What is the typical dynamic resistance of PLZ8V2A-G3/H and why does it matter?

The PLZ8V2A-G3/H has a typical dynamic resistance (Z_Z) of 5.0 Ω at I_ZT = 20 mA. This low value ensures minimal output voltage variation under changing load currents - for example, a 10 mA load step induces only 50 mV deviation. In precision regulation and low-noise analog circuits, this directly improves voltage stability and reduces ripple coupling into sensitive subsystems.

PLZ8V2A-G3/H Specifications

Product attributes: Attribute value

Manufacturer:: Vishay General Semiconductor - Diodes Division

Series:: PLZ

Package/Case:: DO-219AC

Packaging:: Tape & Reel (TR)

Product Status:: Active

Voltage - Zener (Nom) (Vz):: 7.73 V

Tolerance:: ±2.52%

Power - Max:: 960 mW

Impedance (Max) (Zzt):: 8 Ohms

Current - Reverse Leakage @ Vr:: 500 nA @ 5 V

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

Operating Temperature:: 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: DO-219AC (microSMF)

PLZ8V2A-G3/H FAQ

1.How can I place an order for PLZ8V2A-G3/H through Aetrix?

Please submit a Request for Quotation (RFQ) for PLZ8V2A-G3/H 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 PLZ8V2A-G3/H reliable?

The price and inventory of PLZ8V2A-G3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PLZ8V2A-G3/H is usually 5 days.

3.What payment methods are accepted for PLZ8V2A-G3/H?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PLZ8V2A-G3/H transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for PLZ8V2A-G3/H?

PLZ8V2A-G3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your PLZ8V2A-G3/H 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 PLZ8V2A-G3/H?

For technical support, including PLZ8V2A-G3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PLZ8V2A-G3/H requirements.

6.How does Aetrix verify that PLZ8V2A-G3/H is sourced from the original manufacturer or authorized distributors?

All PLZ8V2A-G3/H 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 PLZ8V2A-G3/H meets industry standards.

7.What is the process for return or replacement of PLZ8V2A-G3/H?

All PLZ8V2A-G3/H units undergo pre-shipment inspection (PSI). If there is an issue with PLZ8V2A-G3/H, 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 PLZ8V2A-G3/H part is unused and in its original packaging.

Return procedure for PLZ8V2A-G3/H:

1.Submit a request within 90 days.

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

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