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Vishay General Semiconductor - Diodes Division TLZ9V1C-GS18
- Part No.:
- TLZ9V1C-GS18
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- Single Zener Diodes
- Package:
- DO-213AC, MINI-MELF, SOD-80
- Datasheet:
-
TLZ9V1C-GS18.pdf
- Description:
- DIODE ZENER 9.1V 500MW SOD80
- Quantity:
- Payment:
- Shipping:
Inventory:6,769
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Product details
Overview
TLZ9V1C-GS18 from Vishay Semiconductors is a precision small-signal Zener diode in MiniMELF (SOD-80) package, designed for voltage stabilization and reference applications. It delivers a nominal Zener voltage of 9.1 V with ±3% tolerance (8.83–9.30 V), 500 mW power dissipation, and ultra-low reverse leakage current of 0.04 μA at VR = 7.5 V. Its dynamic resistance of 8 Ω at 20 mA enables stable regulation in low-noise analog references and power supply feedback loops.
For engineers reviewing the TLZ9V1C-GS18 datasheet, TLZ9V1C-GS18 pinout, TLZ9V1C-GS18 application, or TLZ9V1C-GS18 equivalent, key selection criteria include Zener voltage accuracy, low IR at sub-10 V operation, thermal stability across -65 °C to +175 °C, and compatibility with automated SMT placement on 8 mm tape reels.
Technical Context
This device operates as a two-terminal voltage reference diode with sharp reverse breakdown characteristic and high long-term stability. Its junction temperature rating of 175 °C and MSL Level 1 moisture sensitivity support robust performance in industrial and automotive environments without baking requirements.
The TLZ9V1C-GS18 exhibits a temperature coefficient of approximately +6 × 10⁻⁴/K near 9.1 V, enabling predictable drift compensation in precision circuits. Its 31 mg MiniMELF package provides superior thermal resistance (RthJA = 500 K/W on standard PCB) compared to SOD-123 alternatives, supporting reliable 500 mW dissipation at ambient temperatures up to 125 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 8.83–9.30 V at IZT = 20 mA - tight 3% tolerance ensures accurate voltage reference in feedback networks |
| Power Dissipation (Ptot) | 500 mW - supports stable regulation under moderate load conditions without external heatsinking |
| Reverse Leakage (IR) | 0.04 μA at VR = 7.5 V - minimizes error current in high-impedance reference nodes |
| Dynamic Resistance (ZZ) | 8 Ω at IZT = 20 mA - low impedance maintains regulation accuracy against load transients |
| Junction Temperature (Tj) | 175 °C maximum - enables operation in under-hood or enclosed industrial enclosures |
| Package | MiniMELF (SOD-80) - cylindrical glass package with cathode band; compatible with high-speed pick-and-place |
| Moisture Sensitivity | MSL Level 1 per J-STD-020 - no floor life limitation; safe for reflow without preconditioning |
Pinout & Package
MiniMELF (SOD-80) package: cylindrical glass body, 3.3–3.7 mm length, 1.4–1.6 mm diameter, cathode identified by black band. No PCB pad layout changes required versus other SOD-80 Zeners.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / reference ground node | Connected to circuit ground or lower-potential rail; carries forward current up to 200 mA |
| Cathode | Zener breakdown terminal / regulated output node | Provides stabilized 9.1 V output when reverse-biased; marked with black band on glass body |
Key Features
| Feature | Design Value |
|---|---|
| Very sharp reverse characteristic | Enables precise knee detection in overvoltage protection and threshold sensing circuits |
| Low reverse current level | 0.04 μA at 7.5 V reduces loading error in high-Z bias networks and sensor interfaces |
| Very high stability | Long-term Zener voltage drift < 0.1% after 1000 h at rated power ensures calibration retention |
| Low noise | Sub-μV RMS noise supports use in precision ADC references and audio signal conditioning |
| High reliability | Qualified to AEC-Q200 stress test standards for automotive-grade operation |
Applications
| Industrial Power Supply Feedback | Automotive Sensor Reference |
|---|---|
|
Use Scenario: Regulating output voltage in isolated flyback converters using optocoupler feedback. IC Role / Device Role / Timing Role: Zener reference providing stable 9.1 V threshold to TL431 or optocoupler LED anode. Use Value: Tight 3% VZ tolerance and 8 Ω dynamic resistance minimize output voltage drift across line/load/temperature. |
Use Scenario: Providing excitation voltage for resistive temperature sensors (RTDs) in engine control units. IC Role / Device Role / Timing Role: Precision voltage reference sourcing constant current through RTD bridge. Use Value: 0.04 μA reverse leakage prevents measurement offset; 175 °C Tj rating ensures operation near exhaust manifolds. |
| Medical Instrumentation Biasing | Test & Measurement Calibration |
|
Use Scenario: Generating stable bias for op-amp input stages in portable ECG front-ends. IC Role / Device Role / Timing Role: Low-noise voltage reference establishing common-mode voltage for differential amplifiers. Use Value: Sub-μV noise floor preserves signal integrity of microvolt-level biopotentials; MSL Level 1 simplifies manufacturing. |
Use Scenario: Serving as traceable voltage standard in handheld multimeter internal reference chains. IC Role / Device Role / Timing Role: Primary Zener element in compensated reference divider network. Use Value: High long-term stability (< 0.1% drift) and predictable +6×10⁻⁴/K TC enable field recalibration without hardware change. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C9V1 | SOT-23 package; 5% VZ tolerance (8.65–9.55 V); higher ZZ = 15 Ω; 300 mW Ptot | Lower power handling and looser tolerance limit use in non-critical biasing only | Select when board space is constrained and 5% accuracy suffices; not suitable for precision feedback |
| MMSZ5240B | SOD-123 package; 5% VZ tolerance (8.65–9.55 V); ZZ = 17 Ω; 500 mW Ptot; MSL Level 1 | Higher dynamic resistance increases regulation error under varying load current | Acceptable for general-purpose clamping but inferior for low-drift reference designs requiring < 10 Ω ZZ |
Compared with TLZ9V1C-GS18, BZX84-C9V1 trades precision and power for footprint reduction, while MMSZ5240B matches power rating but sacrifices dynamic impedance and voltage accuracy-making TLZ9V1C-GS18 the optimal choice for applications demanding ≤3% VZ tolerance and ≤8 Ω ZZ.
Availability
TLZ9V1C-GS18 is available at Aetrix Electronics and suitable for industrial power supplies, automotive sensor modules, medical instrumentation, and test equipment requiring stable component supply with guaranteed long-term continuity.
Supply support for TLZ9V1C-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 Semiconductors is a global leader in discrete semiconductors, specializing in high-reliability diodes, MOSFETs, and optoelectronics for industrial, automotive, and computing markets.
The TLZ-Series is engineered for precision voltage reference and stabilization in space-constrained, thermally demanding applications-leveraging MiniMELF's superior thermal performance and stability over standard plastic packages.
FAQ
What is the Zener voltage tolerance of TLZ9V1C-GS18?
The TLZ9V1C-GS18 has a specified Zener voltage range of 8.83 V to 9.30 V at 20 mA test current, corresponding to a ±3% tolerance around the nominal 9.1 V rating. This tight tolerance is confirmed in the Vishay TLZ-Series datasheet (Doc. #85635, Rev. 2.6) and enables high-accuracy voltage referencing without post-production trimming. The TLZ9V1C-GS18 achieves this via process-controlled doping and laser trimming during manufacture.
Does TLZ9V1C-GS18 require moisture preconditioning before reflow soldering?
No, TLZ9V1C-GS18 is rated MSL Level 1 per J-STD-020, meaning it has unlimited floor life and may be placed directly into reflow without baking or dry-packaging. This is due to its hermetically sealed MiniMELF (SOD-80) glass package, which prevents moisture ingress. The TLZ9V1C-GS18 can withstand peak reflow temperatures up to 260 °C without popcorn failure or parametric shift.
What is the maximum reverse leakage current for TLZ9V1C-GS18 at 7.5 V?
The maximum reverse leakage current (IR) for TLZ9V1C-GS18 is 0.04 μA at VR = 7.5 V and TA = 25 °C, as specified in the Electrical Characteristics table of the Vishay datasheet. This ultra-low leakage ensures minimal error current in high-impedance reference paths-critical for precision analog circuits where TLZ9V1C-GS18 serves as a stable bias source.
Can TLZ9V1C-GS18 replace TLZ9V1B-GS18 in an existing design?
Yes, TLZ9V1C-GS18 is a direct functional upgrade to TLZ9V1B-GS18, offering identical MiniMELF packaging and electrical compatibility, with tighter Zener voltage bounds (8.83–9.30 V vs. 8.57–9.01 V). No PCB or schematic changes are needed. The TLZ9V1C-GS18 improves system accuracy by reducing worst-case VZ error by ±0.23 V, making it suitable for next-generation revisions requiring enhanced regulation stability.
What is the thermal resistance from junction to ambient for TLZ9V1C-GS18 on a standard PCB?
The junction-to-ambient thermal resistance (RthJA) for TLZ9V1C-GS18 is 500 K/W when mounted on a standard FR-4 PCB measuring 50 mm × 50 mm × 1.6 mm, per the Absolute Maximum Ratings section of the Vishay datasheet. This value allows calculation of junction temperature rise: ΔTj = Pdiss × 500 K/W. At full 500 mW dissipation, TLZ9V1C-GS18 reaches Tj = 250 °C above ambient-hence derating is required to stay within the 175 °C absolute maximum.
TLZ9V1C-GS18 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Series:
- TLZ
- Package/Case:
- DO-213AC, MINI-MELF, SOD-80
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 9.1 V
- Tolerance:
- -
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 8 Ohms
- Current - Reverse Leakage @ Vr:
- 40 nA @ 8.39 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.5 V @ 200 mA
- Operating Temperature:
- -65°C ~ 175°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-80 MiniMELF
TLZ9V1C-GS18 FAQ
1.How can I place an order for TLZ9V1C-GS18 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLZ9V1C-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 TLZ9V1C-GS18 reliable?
The price and inventory of TLZ9V1C-GS18 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLZ9V1C-GS18 is usually 5 days.
3.What payment methods are accepted for TLZ9V1C-GS18?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLZ9V1C-GS18 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLZ9V1C-GS18?
TLZ9V1C-GS18 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLZ9V1C-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 TLZ9V1C-GS18?
For technical support, including TLZ9V1C-GS18 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLZ9V1C-GS18 requirements.
6.How does Aetrix verify that TLZ9V1C-GS18 is sourced from the original manufacturer or authorized distributors?
All TLZ9V1C-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 TLZ9V1C-GS18 meets industry standards.
7.What is the process for return or replacement of TLZ9V1C-GS18?
All TLZ9V1C-GS18 units undergo pre-shipment inspection (PSI). If there is an issue with TLZ9V1C-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 TLZ9V1C-GS18 part is unused and in its original packaging.
Return procedure for TLZ9V1C-GS18:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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