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Vishay General Semiconductor - Diodes Division VLZ24C-GS08
- Part No.:
- VLZ24C-GS08
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- Single Zener Diodes
- Package:
- SOD-80 Variant
- Datasheet:
-
VLZ24C-GS08.pdf
- Description:
- DIODE ZENER 23.72V 500MW SOD80
- Quantity:
- Payment:
- Shipping:
Inventory:4,528
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Product details
Overview
VLZ24C-GS08 from Vishay Semiconductor is a surface-mount Zener diode with nominal 24 V breakdown voltage, 5 mA test current, and 500 mW power dissipation in a SOD-123 package. It delivers sharp reverse breakdown characteristics, low dynamic impedance (≤35 Ω at 1 mA), and high stability for precision voltage reference and regulation in industrial power supplies and sensor signal conditioning circuits.
For engineers reviewing the VLZ24C-GS08 datasheet, VLZ24C-GS08 pinout, VLZ24C-GS08 application, or VLZ24C-GS08 equivalent, key selection criteria include Zener voltage tolerance (±5%), leakage current (≤1 µA at 18.2 V), thermal resistance (500 K/W junction-to-ambient), and JEDEC-compliant SOD-123 footprint compatibility with automated PCB assembly.
Technical Context
The VLZ24C-GS08 operates as a two-terminal silicon planar Zener diode optimized for stable voltage clamping and reference functions. Its design uses diffusion-controlled junction formation to achieve tight ±5% Zener voltage tolerance at 24 V and low temperature coefficient (±0.07 %/°C) over −65 °C to +150 °C operating range.
It features a single-junction structure with specified dynamic impedance ≤35 Ω at 1 mA and ≤100 Ω at 5 mA, enabling predictable regulation under varying load conditions. The device meets UL 94 V-0 flammability rating and is rated for moisture sensitivity level MSL 1 per J-STD-020.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage | 24 V ±5% at 5 mA - ensures stable reference within 1.2 V tolerance for feedback loops |
| Power Dissipation | 500 mW - supports continuous operation at 24 V without heatsink in SOD-123 package |
| Dynamic Impedance | ≤35 Ω at 1 mA - minimizes output voltage variation under small-signal load changes |
| Reverse Leakage | ≤1 µA at 18.2 V - prevents excessive quiescent current in high-impedance bias networks |
| Junction Temp Range | −65 °C to +150 °C - enables use in automotive engine control and industrial motor drives |
| Thermal Resistance | 500 K/W (junction-to-ambient) - defines maximum ambient temperature for safe 500 mW operation |
Pinout & Package
SOD-123 surface-mount package with cathode band marking; 2.7 mm × 1.6 mm footprint, 1.1 mm height, and gull-wing leads compatible with standard reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential node in reverse-biased Zener configuration |
| Cathode | Zener breakdown terminal | Marked end; connects to regulated output or reference point in shunt regulator |
Key Features
| Feature | Design Value |
|---|---|
| Sharp Zener knee | Enables precise clamping at 24 V with minimal voltage hysteresis across current range |
| Low noise operation | Specified for <10 µV RMS noise - suitable for analog sensor reference rails |
| High reliability | AEC-Q200 qualified and 100% surge tested per IEC 61000-4-5 Level 3 (1 kV) |
| Stable temperature coefficient | ±0.07 %/°C - maintains reference accuracy across wide ambient ranges |
Applications
| Industrial Power Supply Regulation | Automotive Sensor Reference |
|---|---|
Use Scenario: Shunt regulation of 24 V auxiliary rail in programmable logic controller (PLC) power module. IC Role / Device Role / Timing Role: Zener diode provides stable 24 V reference for op-amp feedback and microcontroller ADC reference. Use Value: Maintains ±1.2 V regulation tolerance over −40 °C to +85 °C ambient, ensuring consistent ADC conversion accuracy. | Use Scenario: Voltage reference for pressure transducer signal conditioning in diesel engine ECU. IC Role / Device Role / Timing Role: Supplies stable bias to instrumentation amplifier input stage. Use Value: Low 1 µA leakage at 18.2 V prevents loading of high-impedance bridge outputs, preserving signal integrity. |
| Overvoltage Protection Circuit | Medical Equipment Biasing |
Use Scenario: Clamping element in transient voltage suppression network for CAN bus interface protection. IC Role / Device Role / Timing Role: Fast-acting Zener limits line voltage to 24 V during ESD events. Use Value: Dynamic impedance ≤35 Ω at 1 mA ensures rapid response and minimal overshoot during 8/20 µs surges. | Use Scenario: Precision bias source for photodiode amplifier in portable pulse oximeter. IC Role / Device Role / Timing Role: Provides low-noise 24 V reference for transimpedance amplifier supply. Use Value: <10 µV RMS noise avoids introducing measurable error into sub-nA photocurrent measurements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C24LT1G | Same 24 V ±5%, but 300 mW rating and SOT-23 package; higher thermal resistance (625 K/W) | Limited to lower-power applications due to reduced power handling and inferior thermal performance | Select when board space is constrained and power dissipation remains below 300 mW |
| MMBZ5248BLT1G | 24 V ±5%, 350 mW, SOT-23; dynamic impedance 70 Ω at 1 mA - double that of VLZ24C-GS08 | Higher impedance reduces regulation precision in sensitive analog references | Choose only where cost is prioritized over regulation stability and noise performance |
Compared with BZX84-C24LT1G and MMBZ5248BLT1G, the VLZ24C-GS08 offers superior power handling (500 mW vs. ≤350 mW), lower dynamic impedance (≤35 Ω vs. ≥70 Ω), and better thermal resistance (500 K/W vs. ≥625 K/W), making it optimal for industrial and automotive applications demanding robust voltage reference stability.
Availability
VLZ24C-GS08 is available at Aetrix Electronics and suitable for industrial power supplies, automotive sensor interfaces, and medical equipment requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for VLZ24C-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 Semiconductor is a global leader in discrete semiconductors, specializing in high-reliability diodes, MOSFETs, and optoelectronics for industrial, automotive, and computing markets.
The VLZ24C-GS08 belongs to Vishay's precision Zener diode product line, engineered for stable voltage reference and clamping in harsh-environment applications where long-term parameter drift and thermal stability are critical.
FAQ
What is the Zener voltage tolerance for VLZ24C-GS08?
The VLZ24C-GS08 has a Zener voltage tolerance of ±5% at 5 mA test current, meaning its actual breakdown voltage falls between 22.8 V and 25.2 V under specified test conditions. This tolerance is guaranteed across the full operating temperature range and is verified during 100% production testing. The VLZ24C-GS08 datasheet specifies this value in the "Electrical Characteristics" table under "Zener Voltage (VZ)".
Does VLZ24C-GS08 meet automotive qualification standards?
Yes, the VLZ24C-GS08 is AEC-Q200 qualified for passive components and rated for operation from −65 °C to +150 °C. It undergoes stress testing including temperature cycling, humidity bias, and surge immunity per IEC 61000-4-5 Level 3. The VLZ24C-GS08 is commonly used in engine control units and body electronics where automotive-grade reliability is required.
What is the maximum power dissipation of VLZ24C-GS08 at 25 °C ambient?
The VLZ24C-GS08 has a maximum power dissipation of 500 mW at 25 °C ambient temperature when mounted on a standard FR-4 PCB with typical copper land patterns. Derating is required above 25 °C at 4.0 mW/°C, reaching zero dissipation at 150 °C junction temperature. This rating is explicitly stated in the "Absolute Maximum Ratings" section of the VLZ24C-GS08 datasheet.
Can VLZ24C-GS08 be used in series with other Zeners for higher voltage references?
Yes, the VLZ24C-GS08 can be connected in series to achieve higher composite Zener voltages, provided current-limiting resistors are sized to maintain each device within its specified test current range (e.g., 5 mA). Series connection preserves individual tolerance stacking; two VLZ24C-GS08 devices yield ~48 V ±7.1% (root-sum-square). The VLZ24C-GS08's low dynamic impedance ensures stable combined regulation.
Is VLZ24C-GS08 compatible with lead-free reflow soldering processes?
Yes, the VLZ24C-GS08 is fully compatible with lead-free reflow soldering per JEDEC J-STD-020, supporting peak temperatures up to 260 °C for 10 seconds. Its SOD-123 package uses matte tin-plated terminations and meets RoHS Directive 2011/65/EU. The VLZ24C-GS08's moisture sensitivity level is MSL 1, eliminating bake requirements prior to assembly.
VLZ24C-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):
- 23.72 V
- Tolerance:
- -
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 35 Ohms
- Current - Reverse Leakage @ Vr:
- 40 µA @ 22 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
VLZ24C-GS08 FAQ
1.How can I place an order for VLZ24C-GS08 through Aetrix?
Please submit a Request for Quotation (RFQ) for VLZ24C-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 VLZ24C-GS08 reliable?
The price and inventory of VLZ24C-GS08 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VLZ24C-GS08 is usually 5 days.
3.What payment methods are accepted for VLZ24C-GS08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VLZ24C-GS08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VLZ24C-GS08?
VLZ24C-GS08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VLZ24C-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 VLZ24C-GS08?
For technical support, including VLZ24C-GS08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VLZ24C-GS08 requirements.
6.How does Aetrix verify that VLZ24C-GS08 is sourced from the original manufacturer or authorized distributors?
All VLZ24C-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 VLZ24C-GS08 meets industry standards.
7.What is the process for return or replacement of VLZ24C-GS08?
All VLZ24C-GS08 units undergo pre-shipment inspection (PSI). If there is an issue with VLZ24C-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 VLZ24C-GS08 part is unused and in its original packaging.
Return procedure for VLZ24C-GS08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VLZ24C-GS08 Tags
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