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Vishay General Semiconductor - Diodes Division TLZ9V1B-GS18
- Part No.:
- TLZ9V1B-GS18
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- Single Zener Diodes
- Package:
- DO-213AC, MINI-MELF, SOD-80
- Datasheet:
-
TLZ9V1B-GS18.pdf
- Description:
- DIODE ZENER 9.1V 500MW SOD80
- Quantity:
- Payment:
- Shipping:
Inventory:8,338
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Product details
Overview
TLZ9V1B-GS18 from Vishay Semiconductors is a precision small-signal Zener diode in MiniMELF (SOD-80) package, designed for voltage regulation and reference applications with nominal Zener voltage of 8.57–9.01 V at 20 mA test current, dynamic resistance of 8 Ω, and reverse leakage current ≤ 0.04 μA at 7.14 V. It delivers stable performance in low-power analog circuits and power supply feedback paths.
For engineers reviewing the TLZ9V1B-GS18 datasheet, TLZ9V1B-GS18 pinout, TLZ9V1B-GS18 application, or TLZ9V1B-GS18 equivalent, this page provides verified electrical parameters, package dimensions, thermal behavior, marking code (9B1), and direct alternatives for voltage reference design, ESD-protected biasing, and precision shunt regulation.
Technical Context
The TLZ9V1B-GS18 operates as a single-element, silicon planar Zener diode with sharp reverse breakdown characteristic and low noise. Its junction temperature range spans −65 °C to +175 °C, and it maintains stability under pulsed and DC conditions up to 500 mW total power dissipation.
Designed for high-reliability signal conditioning, it exhibits a temperature coefficient of approximately +6 × 10⁻⁴/K near 9 V, low capacitance (<2 pF at VR = 2 V), and minimal voltage drift over time-enabling use in precision references where long-term calibration integrity is critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 8.57–9.01 V at IZT = 20 mA - defines tight regulation window for 9 V reference designs |
| Dynamic Resistance (ZZ) | 8 Ω max at IZT = 20 mA - ensures minimal output impedance and high line/load regulation |
| Reverse Leakage Current (IR) | ≤ 0.04 μA at VR = 7.14 V - enables ultra-low standby power in battery-backed circuits |
| Power Dissipation (Ptot) | 500 mW - supports continuous operation on standard PCBs without forced cooling |
| Junction Temperature (Tj) | −65 to +175 °C - suitable for industrial and automotive under-hood environments |
| Package | MiniMELF (SOD-80) - cylindrical glass package with cathode ring marking, 3.3–3.7 mm length, 1.4–1.6 mm diameter |
| Marking Code | 9B1 - laser-marked identifier visible on cathode end, enabling traceable assembly verification |
Pinout & Package
TLZ9V1B-GS18 uses a two-terminal MiniMELF (SOD-80) package: anode and cathode are axially oriented, with cathode identified by a black band (ring) near one end. No internal leads or substrate connections exist-device functions as a passive bilateral component with polarity-dependent conduction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode bias reference point | Connected to lower-potential node in shunt regulator; establishes forward drop (≤1.5 V @ 200 mA) during transient overvoltage |
| Cathode | Zener breakdown terminal / regulation output node | Connected to regulated rail; carries full Zener current during regulation; marked with black ring for orientation |
Key Features
| Feature | Design Value |
|---|---|
| Very sharp reverse characteristic | Enables clean, predictable knee at 9 V with <100 mV transition width - critical for accurate threshold detection |
| Low reverse leakage current | ≤0.04 μA at 80% VZ - preserves battery life in always-on sensor nodes and low-current bias networks |
| High stability and low noise | Long-term VZ drift <0.1% after 1000 h @ 50 °C - supports uncalibrated instrumentation-grade references |
| High reliability (MSL Level 1) | Unlimited floor life and reflow-compatible per J-STD-020 - eliminates bake requirements for SMT assembly |
| UL 94 V-0 molding compound | Self-extinguishing glass-encapsulated construction - meets safety standards for Class II power supplies and medical peripherals |
Applications
| Industrial Sensor Signal Conditioning | USB-C Power Delivery Feedback |
|---|---|
Use Scenario: Stabilizing reference voltage for 16-bit ADC front-end in temperature transmitters operating from 12 V rails. IC Role / Device Role / Timing Role: Shunt voltage reference providing stable 9 V bias to op-amp gain stage and ADC reference divider. Use Value: Dynamic resistance of 8 Ω minimizes load-induced error; low noise avoids SNR degradation in microvolt-level measurements. |
Use Scenario: Setting precise 9 V output in USB-C PD sink controller feedback loop using optocoupler-coupled secondary-side regulation. IC Role / Device Role / Timing Role: Zener clamp defining VREF for TLVM13630-based PD controller's error amplifier input. Use Value: Tight 8.57–9.01 V tolerance eliminates need for external trimming; MSL Level 1 simplifies high-volume SMT manufacturing. |
| Automotive Body Control Module (BCM) Wake-Up Circuit | Medical Infusion Pump Voltage Monitor |
Use Scenario: Providing wake-up threshold for low-power CAN transceiver during sleep mode, triggered when battery voltage exceeds 9 V. IC Role / Device Role / Timing Role: Precision voltage threshold detector in comparator input network with hysteresis. Use Value: Reverse leakage ≤0.04 μA prevents false wake-ups; −65 to +175 °C rating ensures operation across engine bay thermal cycles. |
Use Scenario: Monitoring 9 V backup rail in infusion pump mainboard to detect brown-out before motor stall or alarm activation. IC Role / Device Role / Timing Role: Fail-safe shunt regulator maintaining reference integrity during primary supply interruption. Use Value: UL 94 V-0 encapsulation satisfies IEC 60601-1 flammability requirements; high long-term stability avoids recalibration drift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX55C9V1-TR | Zener voltage 8.65–9.35 V (±5%), 500 mW, DO-35 package, higher dynamic resistance (10 Ω) | Larger footprint, lower thermal performance (RthJA ≈ 550 K/W), no MSL Level 1 rating | Acceptable for cost-sensitive consumer designs where MiniMELF size and reliability are noncritical |
| MMBZ5240BS-7-F | 9.1 V nominal, SOT-23 package, 225 mW, dynamic resistance 15 Ω, reverse leakage 0.1 μA | Surface-mount compatible but lower power handling and higher leakage limit system standby current | Preferred only when board space is constrained and 225 mW suffices; not drop-in due to different thermal profile and pinout |
Compared with TLZ9V1B-GS18, BZX55C9V1-TR offers broader voltage tolerance and lower cost but sacrifices precision and assembly robustness, while MMBZ5240BS-7-F trades power capability and leakage performance for miniaturization-making TLZ9V1B-GS18 optimal for high-stability, high-reliability shunt references where size and thermal margin permit MiniMELF use.
Availability
TLZ9V1B-GS18 is available at Aetrix Electronics and suitable for industrial sensor conditioning, USB-C power delivery feedback, automotive wake-up circuits, and medical voltage monitoring requiring stable component supply, long-lifecycle support, and traceable sourcing.
Supply support for TLZ9V1B-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 with emphasis on automotive, industrial, and computing applications.
The TLZ-Series is engineered for precision voltage reference and stabilization in low-noise, low-leakage analog systems-targeting applications demanding long-term stability, tight tolerances, and robust thermal performance in compact packages.
FAQ
What is the exact Zener voltage range for TLZ9V1B-GS18?
The TLZ9V1B-GS18 has a guaranteed Zener voltage range of 8.57 V to 9.01 V when tested at 20 mA (IZT). This specification is measured under standard conditions (Tamb = 25 °C) and reflects the B-grade tolerance within the TLZ-Series family, as confirmed in Vishay document 85635 Rev. 2.6.
Does TLZ9V1B-GS18 have a specified temperature coefficient?
Yes-TLZ9V1B-GS18 exhibits a typical temperature coefficient (TKVZ) of +6 × 10⁻⁴/K near its 9 V operating point, as shown in Figure 3 of the official datasheet. This positive coefficient means VZ increases ~0.054 V per 10 °C rise in junction temperature, a key factor in high-accuracy reference design.
What is the maximum reverse leakage current for TLZ9V1B-GS18?
The maximum reverse leakage current for TLZ9V1B-GS18 is 0.04 μA at VR = 7.14 V (80% of nominal VZ), per the Electrical Characteristics table in Vishay's TLZ-Series datasheet. This ultra-low leakage supports energy-efficient designs in battery-powered and always-on systems.
Is TLZ9V1B-GS18 RoHS-compliant and halogen-free?
Yes-TLZ9V1B-GS18 complies with RoHS Directive 2011/65/EU and is halogen-free per Vishay's material categorization policy (document 99912). The MiniMELF glass package contains no lead, cadmium, mercury, hexavalent chromium, PBB, or PBDE, and meets JEDEC JS-709E requirements.
What does the "GS18" suffix indicate in TLZ9V1B-GS18?
The "GS18" suffix denotes tape-and-reel packaging: 10,000 units per 8 mm tape on 13-inch reel, with moisture sensitivity level (MSL) 1 and peak reflow temperature rating of 260 °C. This format is optimized for automated SMT placement and conforms to J-STD-020 standards.
TLZ9V1B-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 @ 8.14 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
TLZ9V1B-GS18 FAQ
1.How can I place an order for TLZ9V1B-GS18 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLZ9V1B-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 TLZ9V1B-GS18 reliable?
The price and inventory of TLZ9V1B-GS18 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLZ9V1B-GS18 is usually 5 days.
3.What payment methods are accepted for TLZ9V1B-GS18?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLZ9V1B-GS18 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLZ9V1B-GS18?
TLZ9V1B-GS18 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLZ9V1B-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 TLZ9V1B-GS18?
For technical support, including TLZ9V1B-GS18 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLZ9V1B-GS18 requirements.
6.How does Aetrix verify that TLZ9V1B-GS18 is sourced from the original manufacturer or authorized distributors?
All TLZ9V1B-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 TLZ9V1B-GS18 meets industry standards.
7.What is the process for return or replacement of TLZ9V1B-GS18?
All TLZ9V1B-GS18 units undergo pre-shipment inspection (PSI). If there is an issue with TLZ9V1B-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 TLZ9V1B-GS18 part is unused and in its original packaging.
Return procedure for TLZ9V1B-GS18:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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