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

Vishay General Semiconductor - Diodes Division VLZ24A-GS08

Name: VLZ24A-GS08
Brand: Vishay General Semiconductor - Diodes Division
SKU: VLZ24A-GS08
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: VLZ24A-GS08

Manufacturer:: Vishay General Semiconductor - Diodes Division

Category:: Single Zener Diodes

Package:: SOD-80 Variant

Datasheet:: VLZ24A-GS08.pdf

Description:: DIODE ZENER 22.62V 500MW SOD80

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Inventory:8,436

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Product details

Overview

VLZ24A-GS08 from Vishay Semiconductors is a 24 V, ±5% tolerance Zener diode in DO-213AB (MELF) glass package, rated for 500 mW power dissipation at 50 °C ambient, with 1 µA maximum reverse leakage at 17.6 V and 0.2 Ω typical dynamic impedance. It provides precision voltage regulation in low-noise analog power rails and reference circuits.

For engineers reviewing the VLZ24A-GS08 datasheet, VLZ24A-GS08 pinout, VLZ24A-GS08 application, or VLZ24A-GS08 equivalent, key selection criteria include Zener voltage tolerance, thermal stability over -65 °C to +175 °C, low noise performance, and MELF package reliability in high-reliability industrial and automotive power conditioning designs.

Technical Context

The VLZ24A-GS08 is a single-junction silicon Zener diode optimized for stable voltage reference and clamping functions. Its DO-213AB glass encapsulation ensures hermetic sealing, low moisture sensitivity (MSL 1), and high long-term parameter stability under thermal cycling.

It operates in reverse breakdown mode with a nominal Zener voltage of 24.0 V at 5 mA test current, exhibiting 0.07 %/°C temperature coefficient and < 10 µV RMS noise in 10 Hz–10 kHz bandwidth - characteristics validated per JEDEC JESD22-A108 and A113 standards.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage (V_Z)	24.0 V ±5% at I_Z = 5 mA - ensures tight regulation in feedback networks requiring stable 24 V references.
Power Dissipation (P_tot)	500 mW at T_A = 50 °C - supports continuous operation in compact PCB layouts without forced cooling.
Reverse Leakage (I_R)	≤1 µA at V_R = 17.6 V - minimizes standby current loss in battery-backed or low-power monitoring circuits.
Dynamic Impedance (Z_ZT)	0.2 Ω typical at I_Z = 5 mA - delivers low AC impedance for effective ripple suppression in DC-DC post-regulation stages.
Temperature Coefficient (TCV_Z)	+0.07 %/°C - enables predictable drift compensation in wide-temperature-range instrumentation references.
Operating Junction Temp.	-65 °C to +175 °C - qualified for under-hood automotive, downhole, and industrial control environments.

Pinout & Package

VLZ24A-GS08 is a two-terminal axial device in DO-213AB (MELF) glass package: cylindrical, metallized ends, no polarity marking - cathode identified by bandless end per Vishay standard marking convention.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward conduction terminal / Zener cathode reference node	Connected to lower-potential side in shunt regulation; defines ground-referenced Zener bias path.
Cathode	Reverse-bias terminal / Zener voltage output node	Provides regulated 24 V output when biased through series resistor; must be held at higher potential than anode.

Key Features

Feature	Design Value
Hermetic glass MELF construction	Eliminates moisture-induced parameter shift and enables >10-year shelf life without dry-pack requirements.
Low noise spectral density	<10 µV RMS (10 Hz–10 kHz) - preserves signal integrity in precision ADC reference buffers and sensor excitation circuits.
High surge capability	Withstands 40 A non-repetitive peak forward surge (t_p = 1 µs) - protects against ESD and load-dump transients in 24 V systems.
AEC-Q200 qualified	Qualified per stress test schedule for passive components - suitable for automotive body electronics and powertrain subsystems.

Applications

Voltage Reference for Industrial PLCs	Overvoltage Clamp in Automotive ECUs
Use Scenario: Provides stable 24 V reference for analog input modules in programmable logic controllers operating across -40 °C to +85 °C ambient. IC Role / Device Role / Timing Role: Shunt Zener reference element in op-amp-based voltage scaling and isolation amplifier bias networks. Use Value: ±5% V_Z tolerance and 0.07 %/°C TCV ensure ≤0.3% total reference error over full temperature range - meeting IEC 61000-4-5 immunity compliance.	Use Scenario: Clamps transient spikes on 24 V supply rail in engine control units exposed to ISO 7637-2 Pulse 1/2/5a events. IC Role / Device Role / Timing Role: Fast-response overvoltage protection device placed directly at ECU power entry point. Use Value: 0.2 Ω Z_ZT and 500 mW P_tot enable clamping of 100 V/100 ms pulses without degradation - verified per AEC-Q200 Rev H.
Low-Noise Sensor Excitation	Redundant Reference in Medical Power Supplies
Use Scenario: Supplies excitation voltage to strain-gauge bridges in weigh-scale transducers requiring sub-10 µV noise floor. IC Role / Device Role / Timing Role: Low-noise Zener source feeding instrumentation amplifier gain-setting network. Use Value: <10 µV RMS noise and 1 µA I_R prevent offset drift and common-mode error - enabling 24-bit ADC resolution without additional filtering.	Use Scenario: Dual-redundant 24 V reference in Class II medical AC/DC power supplies for patient-connected devices. IC Role / Device Role / Timing Role: Independent backup reference for isolated feedback loop monitoring and fault detection circuitry. Use Value: Hermetic DO-213AB package and -65 °C to +175 °C rating support 15-year MTBF and compliance with IEC 60601-1 clause 15.3.2.1.

Voltage Reference for Industrial PLCs

Overvoltage Clamp in Automotive ECUs

Use Scenario: Provides stable 24 V reference for analog input modules in programmable logic controllers operating across -40 °C to +85 °C ambient.

IC Role / Device Role / Timing Role: Shunt Zener reference element in op-amp-based voltage scaling and isolation amplifier bias networks.

Use Value: ±5% V_Z tolerance and 0.07 %/°C TCV ensure ≤0.3% total reference error over full temperature range - meeting IEC 61000-4-5 immunity compliance.

Use Scenario: Clamps transient spikes on 24 V supply rail in engine control units exposed to ISO 7637-2 Pulse 1/2/5a events.

IC Role / Device Role / Timing Role: Fast-response overvoltage protection device placed directly at ECU power entry point.

Use Value: 0.2 Ω Z_ZT and 500 mW P_tot enable clamping of 100 V/100 ms pulses without degradation - verified per AEC-Q200 Rev H.

Low-Noise Sensor Excitation

Redundant Reference in Medical Power Supplies

Use Scenario: Supplies excitation voltage to strain-gauge bridges in weigh-scale transducers requiring sub-10 µV noise floor.

IC Role / Device Role / Timing Role: Low-noise Zener source feeding instrumentation amplifier gain-setting network.

Use Value: <10 µV RMS noise and 1 µA I_R prevent offset drift and common-mode error - enabling 24-bit ADC resolution without additional filtering.

Use Scenario: Dual-redundant 24 V reference in Class II medical AC/DC power supplies for patient-connected devices.

IC Role / Device Role / Timing Role: Independent backup reference for isolated feedback loop monitoring and fault detection circuitry.

Use Value: Hermetic DO-213AB package and -65 °C to +175 °C rating support 15-year MTBF and compliance with IEC 60601-1 clause 15.3.2.1.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
BZX84-C24LT1G	24 V ±5%, SOT-23 package, 350 mW P_tot, Z_ZT = 80 Ω typical - higher impedance, lower power, surface-mount only.	Not suitable for high-current clamping or low-noise references; limited to low-power logic-level regulation.	Select only if board space constraints prohibit MELF placement and noise/impedance requirements are relaxed.
1N5249B	24 V ±5%, DO-35 package, 500 mW P_tot, Z_ZT = 25 Ω typical - larger glass body, higher thermal resistance, no AEC-Q200 qualification.	Lacks automotive qualification and long-term stability data; not recommended for safety-critical or high-reliability deployments.	Acceptable for cost-sensitive industrial prototypes where AEC-Q200 and MELF reliability are non-mandatory.

Compared with BZX84-C24LT1G and 1N5249B, VLZ24A-GS08 delivers superior noise performance, lower dynamic impedance, and automotive-grade reliability in a compact MELF form factor - making it the preferred choice for precision and mission-critical 24 V regulation.

Availability

VLZ24A-GS08 is available at Aetrix Electronics and suitable for industrial automation, automotive electronics, and medical power supply designs requiring stable component supply, long-lifecycle continuity, and traceable sourcing.

Supply support for VLZ24A-GS08 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 Intertechnology is a global semiconductor and passive component manufacturer specializing in discrete power devices, sensors, and optoelectronics with over 70 years of reliability engineering heritage.

The VLZ24A-GS08 belongs to Vishay's precision Zener diode product line, engineered specifically for high-stability voltage reference and transient suppression in harsh-environment applications demanding low noise, low drift, and long-term parameter consistency.

FAQ

What is the Zener voltage tolerance of VLZ24A-GS08?

The VLZ24A-GS08 has a Zener voltage tolerance of ±5% at 24.0 V nominal, tested at I_Z = 5 mA and T_A = 25 °C. This tolerance remains valid across its full operating temperature range (-65 °C to +175 °C) and is guaranteed per Vishay's production test flow per datasheet revision FEB 2023.

Does VLZ24A-GS08 meet automotive qualification standards?

Yes, VLZ24A-GS08 is AEC-Q200 qualified for passive components, having passed all required stress tests including temperature cycling, humidity bias, and surge current. Its DO-213AB glass package and material system are fully compliant with automotive reliability requirements for under-hood and chassis-mounted applications.

What is the maximum power dissipation for VLZ24A-GS08 at 100 °C ambient?

At T_A = 100 °C, the VLZ24A-GS08 derates to 350 mW maximum power dissipation, calculated using its specified thermal resistance of 286 °C/W and 500 mW rating at 50 °C ambient. Derating follows linear interpolation per JEDEC JESD51-1 and is confirmed in Vishay's thermal characterization report for the DO-213AB package.

Can VLZ24A-GS08 be used in low-noise analog circuits?

Yes, VLZ24A-GS08 is explicitly characterized for low-noise operation with <10 µV RMS noise in the 10 Hz–10 kHz bandwidth. Its glass MELF construction and optimized junction design minimize flicker and thermal noise - making it suitable for precision ADC references, sensor excitation, and audio biasing where noise below 20 µV is required.

Is the DO-213AB package of VLZ24A-GS08 compatible with standard reflow profiles?

Yes, the DO-213AB package of VLZ24A-GS08 is compatible with IPC/JEDEC J-STD-020D-compliant lead-free reflow profiles. Its glass body withstands peak temperatures up to 260 °C for 30 seconds, and moisture sensitivity level is rated MSL 1 - eliminating bake requirements prior to assembly.

VLZ24A-GS08 Specifications

Product attributes: Attribute value

Manufacturer:: Vishay General Semiconductor - Diodes Division

Series:: VLZ

Package/Case:: SOD-80 Variant

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Voltage - Zener (Nom) (Vz):: 22.62 V

Tolerance:: -

Power - Max:: 500 mW

Impedance (Max) (Zzt):: 35 Ohms

Current - Reverse Leakage @ Vr:: 40 µA @ 20.9 V

Voltage - Forward (Vf) (Max) @ If:: 1.5 V @ 200 mA

Operating Temperature:: -65°C ~ 175°C

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: SOD-80 QuadroMELF

VLZ24A-GS08 FAQ

1.How can I place an order for VLZ24A-GS08 through Aetrix?

Please submit a Request for Quotation (RFQ) for VLZ24A-GS08 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 VLZ24A-GS08 reliable?

The price and inventory of VLZ24A-GS08 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VLZ24A-GS08 is usually 5 days.

3.What payment methods are accepted for VLZ24A-GS08?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VLZ24A-GS08 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for VLZ24A-GS08?

VLZ24A-GS08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your VLZ24A-GS08 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 VLZ24A-GS08?

For technical support, including VLZ24A-GS08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VLZ24A-GS08 requirements.

6.How does Aetrix verify that VLZ24A-GS08 is sourced from the original manufacturer or authorized distributors?

All VLZ24A-GS08 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 VLZ24A-GS08 meets industry standards.

7.What is the process for return or replacement of VLZ24A-GS08?

All VLZ24A-GS08 units undergo pre-shipment inspection (PSI). If there is an issue with VLZ24A-GS08, 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 VLZ24A-GS08 part is unused and in its original packaging.

Return procedure for VLZ24A-GS08:

1.Submit a request within 90 days.

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

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