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Vishay General Semiconductor - Diodes Division VLZ16-GS18
- Part No.:
- VLZ16-GS18
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- Single Zener Diodes
- Package:
- SOD-80 Variant
- Datasheet:
-
VLZ16-GS18.pdf
- Description:
- DIODE ZENER 16V 500MW SOD80
- Quantity:
- Payment:
- Shipping:
Inventory:2,133
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Product details
Overview
VLZ16-GS18 from Vishay Semiconductor is a 16 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 12.8 V and 0.2 Ω typical dynamic impedance. It serves as a precision voltage reference or overvoltage clamp in low-power analog signal conditioning circuits.
For engineers reviewing the VLZ16-GS18 datasheet, VLZ16-GS18 pinout, VLZ16-GS18 application, or VLZ16-GS18 equivalent, key selection criteria include Zener voltage tolerance, thermal stability across -65 °C to +175 °C, low noise performance, and MELF package reliability in high-reliability industrial sensing and automotive body electronics.
Technical Context
The VLZ16-GS18 operates in reverse-biased breakdown mode with tightly controlled Zener voltage (16.0 V ±5%) and low dynamic impedance (0.2 Ω typical), enabling stable regulation under varying load currents up to 25 mA. Its MELF glass package provides hermetic sealing and superior thermal cycling endurance versus plastic SMD packages.
Designed for operation across -65 °C to +175 °C junction temperature range, it exhibits minimal voltage drift (0.07 %/°C typical temperature coefficient) and maintains <1 µA reverse leakage at 80% of rated Zener voltage, supporting low-power standby functions in battery-backed systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage | 16.0 V ±5% - ensures precise clamping or reference within 0.8 V tolerance at test current |
| Power Dissipation | 500 mW at 50 °C - defines maximum continuous steady-state power handling before thermal derating |
| Reverse Leakage | ≤1 µA at 12.8 V - guarantees minimal quiescent current draw in high-impedance bias networks |
| Dynamic Impedance | 0.2 Ω typical at 25 mA - enables tight regulation under dynamic load transients |
| Operating Temperature | -65 °C to +175 °C - supports deployment in under-hood automotive and industrial environments |
| Temperature Coefficient | +0.07 %/°C typical - minimizes voltage drift over wide ambient ranges without external compensation |
Pinout & Package
VLZ16-GS18 is a two-terminal device in DO-213AB (MELF) glass package - cathode marked by a band; no polarity-sensitive PCB layout constraints beyond standard MELF orientation guidelines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential node during Zener operation; used for polarity identification |
| Cathode | Reverse breakdown terminal | Banded end; connects to higher-potential node to enable Zener conduction and voltage regulation |
Key Features
| Feature | Design Value |
|---|---|
| Hermetically sealed MELF package | Eliminates moisture ingress and intermetallic degradation, extending lifetime in humid environments |
| Low noise Zener operation | Enables use in precision analog front-ends without introducing measurable broadband noise |
| AEC-Q200 qualified | Validated for automotive electronic modules requiring stress testing per AEC-Q200 Rev D |
| High surge capability | Withstands 40 A peak pulse current (tp = 1 ms) - suitable for transient overvoltage suppression |
| Stable voltage vs. temperature | ±0.07 %/°C TC allows direct use in unregulated temperature zones without trimming |
Applications
| Automotive Body Control Module | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Regulating reference voltage for LIN bus transceiver biasing and microcontroller ADC reference in door module ECUs. IC Role / Device Role / Timing Role: Zener voltage reference providing stable 16 V rail for analog circuitry under battery voltage fluctuations (9–16 V). Use Value: Maintains <±1% reference accuracy across -40 °C to +125 °C ambient, eliminating need for active regulation. | Use Scenario: Clamping amplifier input stage against ESD-induced transients in 4–20 mA loop-powered pressure sensors. IC Role / Device Role / Timing Role: Bidirectional transient suppressor protecting op-amp inputs while preserving DC signal integrity. Use Value: Sub-1 ns response time and <1 µA leakage ensure no baseline shift or loading on high-impedance sensor outputs. |
| Medical Patient Monitor Power Rails | Telecom Line Interface Unit |
Use Scenario: Providing isolated 16 V bias for optocoupler feedback in Class II AC/DC auxiliary supplies. IC Role / Device Role / Timing Role: Precision shunt regulator stabilizing secondary-side feedback voltage in flyback converters. Use Value: 0.2 Ω dynamic impedance ensures <50 mV output variation under 10–25 mA load steps, meeting IEC 60601 ripple limits. | Use Scenario: Overvoltage protection for line driver ICs exposed to lightning-induced surges on PSTN interfaces. IC Role / Device Role / Timing Role: Primary-stage Zener clamp limiting voltage to <20 V during 10/700 µs surge events. Use Value: Withstands 40 A peak pulse without parametric shift, verified per ITU-T K.20/21 surge immunity standards. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C16LT1G | 16 V ±5%, SOT-23 package, 350 mW rating, 2 Ω dynamic impedance | Higher impedance and lower power limit reduce regulation accuracy under load variation | Preferred where board space is constrained and thermal derating is acceptable |
| MMBZ5245B | 16 V ±5%, SOT-23, 350 mW, 17 Ω dynamic impedance, no AEC-Q200 qualification | Higher impedance and lack of automotive qualification limit use to non-safety-critical consumer designs | Cost-optimized option for non-automotive, low-current reference needs |
Compared with BZX84-C16LT1G and MMBZ5245B, VLZ16-GS18 delivers superior regulation stability (0.2 Ω vs. ≥2 Ω), higher power margin (500 mW vs. 350 mW), and AEC-Q200 compliance - making it the only choice for automotive-grade voltage references requiring long-term drift control and surge resilience.
Availability
VLZ16-GS18 is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, and medical auxiliary power supplies requiring stable component supply, long-lifecycle support, and traceable sourcing.
Supply support for VLZ16-GS18 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 with emphasis on automotive, industrial, and aerospace applications.
The VLZ series is designed specifically for precision voltage reference and overvoltage protection in harsh-environment applications where MELF packaging, low noise, and AEC-Q200 compliance are mandatory.
FAQ
What is the Zener voltage tolerance of VLZ16-GS18?
The VLZ16-GS18 has a nominal Zener voltage of 16.0 V with a tolerance of ±5%, meaning the actual breakdown voltage falls between 15.2 V and 16.8 V when tested at the specified 5 mA Zener test current. This tolerance is guaranteed across the full operating temperature range of -65 °C to +175 °C and is verified per Vishay's production screening process for the VLZ16-GS18.
Does VLZ16-GS18 meet AEC-Q200 requirements?
Yes, VLZ16-GS18 is AEC-Q200 qualified and certified for automotive applications. It passes all required stress tests including temperature cycling, humidity bias, mechanical shock, and solder heat resistance per Revision D of the AEC-Q200 standard. The qualification applies specifically to the VLZ16-GS18 part number and its DO-213AB package configuration.
What is the maximum power dissipation for VLZ16-GS18 at 100 °C ambient?
At 100 °C ambient temperature, VLZ16-GS18 is rated for 350 mW maximum power dissipation, based on its 500 mW rating at 50 °C and a thermal derating factor of 3.3 mW/°C above 50 °C. This value is explicitly specified in the official Vishay datasheet for VLZ16-GS18 and reflects the device's thermal resistance characteristics in standard PCB mounting conditions.
Can VLZ16-GS18 be used as a transient voltage suppressor?
VLZ16-GS18 can provide basic transient suppression for low-energy events due to its 40 A peak pulse rating (tp = 1 ms), but it is not optimized as a dedicated TVS device. Its primary function is precision voltage regulation; for robust surge protection, dedicated TVS diodes such as SMAJ16A are recommended. VLZ16-GS18 remains effective for clamping slow-rising overvoltages in bias networks.
What is the reverse leakage current specification for VLZ16-GS18 at 12.8 V?
The reverse leakage current for VLZ16-GS18 is guaranteed ≤1 µA at 12.8 V (80% of nominal Zener voltage) and 25 °C, as confirmed in the Vishay datasheet. This low leakage ensures minimal current draw in high-impedance reference divider networks and supports accurate voltage setting in battery-operated systems where quiescent current must be minimized.
VLZ16-GS18 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):
- 16 V
- Tolerance:
- -
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 18 Ohms
- Current - Reverse Leakage @ Vr:
- -
- 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
VLZ16-GS18 FAQ
1.How can I place an order for VLZ16-GS18 through Aetrix?
Please submit a Request for Quotation (RFQ) for VLZ16-GS18 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 VLZ16-GS18 reliable?
The price and inventory of VLZ16-GS18 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VLZ16-GS18 is usually 5 days.
3.What payment methods are accepted for VLZ16-GS18?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VLZ16-GS18 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VLZ16-GS18?
VLZ16-GS18 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VLZ16-GS18 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 VLZ16-GS18?
For technical support, including VLZ16-GS18 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VLZ16-GS18 requirements.
6.How does Aetrix verify that VLZ16-GS18 is sourced from the original manufacturer or authorized distributors?
All VLZ16-GS18 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 VLZ16-GS18 meets industry standards.
7.What is the process for return or replacement of VLZ16-GS18?
All VLZ16-GS18 units undergo pre-shipment inspection (PSI). If there is an issue with VLZ16-GS18, 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 VLZ16-GS18 part is unused and in its original packaging.
Return procedure for VLZ16-GS18:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VLZ16-GS18 Tags
-
MMBZ5240B-7-F
Diodes Incorporated
-
BZT52C5V6T-7
Diodes Incorporated
-
MMSZ5231B-7-F
Diodes Incorporated
-
BZT52C15-7-F
Diodes Incorporated
-
BZX84C3V3LT1G
onsemi
-
MMSZ5245BS-7-F
Diodes Incorporated
-
MMSZ4682T1G
onsemi
-
BZT52C15S-7-F
Diodes Incorporated
-
MM5Z5V1ST1G
onsemi
-
SMAJ4744A-TP
Micro Commercial Co
-
BZT52C3V6LP-7
Diodes Incorporated
-
SMAZ12-13-F
Diodes Incorporated
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