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Vishay General Semiconductor - Diodes Division TLZ3V6-GS18
- Part No.:
- TLZ3V6-GS18
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- Single Zener Diodes
- Package:
- DO-213AC, MINI-MELF, SOD-80
- Datasheet:
-
TLZ3V6-GS18.pdf
- Description:
- DIODE ZENER 3.6V 500MW SOD80
- Quantity:
- Payment:
- Shipping:
Inventory:2,775
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Product details
Overview
TLZ3V6-GS18 from Vishay Semiconductors is a precision small-signal Zener diode in MiniMELF (SOD-80) package, designed for voltage regulation and reference applications at 3.6 V nominal Zener voltage with ±0.145 V tolerance, 5 μA max reverse leakage at 1 V, and 60 Ω dynamic resistance at 20 mA test current. It delivers stable voltage stabilization in low-power analog circuits, sensor biasing, and power supply feedback networks.
For engineers reviewing the TLZ3V6-GS18 datasheet, TLZ3V6-GS18 pinout, TLZ3V6-GS18 application, or TLZ3V6-GS18 equivalent, key selection criteria include its tight 3.455–3.695 V Zener range at 20 mA, MSL Level 1 moisture sensitivity, 500 mW power rating, and MiniMELF package compatibility with high-reliability industrial and automotive-grade PCB layouts.
Technical Context
This device operates as a two-terminal voltage reference diode with sharp reverse breakdown characteristic and low noise performance. Its Zener voltage exhibits a temperature coefficient near zero at ~3.6 V, minimizing drift across -65 °C to +175 °C operating range.
Designed for DC voltage stabilization, it supports continuous operation up to 175 °C junction temperature and maintains stability under pulsed conditions per J-STD-020 reflow profile (peak 260 °C). The SOD-80 package enables high thermal dissipation efficiency with RthJA = 500 K/W on standard 50 mm × 50 mm × 1.6 mm PCB.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener voltage (VZ) | 3.455–3.695 V at IZT = 20 mA - ensures precise 3.6 V regulation with ±4% tolerance in production designs |
| Dynamic resistance (ZZ) | 60 Ω max at IZT = 20 mA - provides low impedance for stable output under load transients |
| Reverse leakage (IR) | 5 μA max at VR = 1 V - minimizes standby current in battery-powered reference circuits |
| Power dissipation (Ptot) | 500 mW - supports continuous operation without external heatsinking in compact layouts |
| Junction temperature (Tj) | 175 °C max - enables use in under-hood automotive and industrial environments |
| Package | MiniMELF (SOD-80) - glass-body cylindrical package with cathode band, optimized for automated placement and high reliability |
Pinout & Package
MiniMELF (SOD-80) package: cylindrical glass body, 3.3–3.7 mm length, 1.4–1.6 mm diameter, cathode identified by dark band. No polarity-sensitive terminals beyond anode/cathode; bidirectional mounting not supported.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential node in reverse-biased Zener configuration; carries forward current up to 200 mA |
| Cathode | Zener breakdown terminal | Connected to higher-potential node; defines regulated output voltage node when reverse biased |
Key Features
| Feature | Design Value |
|---|---|
| Very sharp reverse characteristic | Enables clean, low-hysteresis voltage clamping critical for precision analog references |
| Low reverse leakage current | 5 μA max at 1 V reverse bias reduces error in high-impedance sensing nodes |
| High stability over temperature | Zero TC point near 3.6 V minimizes drift in unregulated environments (-65 °C to +175 °C) |
| Low noise performance | Supports low-noise LDO feedback paths and precision ADC reference buffers |
| UL 94 V-0 molding compound | Ensures flame-retardant compliance in safety-critical industrial control modules |
Applications
| Industrial Sensor Signal Conditioning | Automotive Cabin Control Reference |
|---|---|
Use Scenario: Biasing bridge-based pressure/temperature sensors in PLC analog input modules. IC Role / Device Role / Timing Role: Voltage reference for op-amp excitation and ADC reference divider network. Use Value: Tight 3.455–3.695 V tolerance and <60 Ω dynamic resistance ensure <0.1% full-scale error across 0–70 °C ambient range. | Use Scenario: Providing stable 3.6 V reference for HVAC microcontroller ADC channels in dashboard clusters. IC Role / Device Role / Timing Role: Zener shunt regulator supplying clean reference to 12-bit SAR ADC. Use Value: MSL Level 1 and 175 °C Tj rating support AEC-Q200-aligned reflow and under-dash thermal cycling. |
| Medical Portable Device Power Monitoring | Telecom Line Card Voltage Clamp |
Use Scenario: Battery voltage monitoring circuit in handheld diagnostic equipment. IC Role / Device Role / Timing Role: Precision shunt reference for comparator-based low-battery detection. Use Value: 5 μA max reverse leakage extends battery life in always-on monitoring mode with 10-year shelf-life requirements. | Use Scenario: Overvoltage protection clamp on 3.3 V data line in base station backplane interface. IC Role / Device Role / Timing Role: Fast-response Zener clamp limiting transient spikes to <4.0 V. Use Value: Sharp reverse knee and 60 Ω ZZ enable sub-100 ns response to ESD events per IEC 61000-4-2 Level 4. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX55C3V6-TR | 3.5–3.7 V VZ range at 5 mA; 90 Ω ZZ; DO-35 package | Higher dynamic resistance and lower test current reduce regulation accuracy in precision feedback loops | Prefer TLZ3V6-GS18 where low ZZ and 20 mA IZT improve load regulation in active circuits |
| MMSZ4685-TP | 3.42–3.78 V VZ at 5 mA; SOD-123 package; 100 Ω ZZ | SOD-123 footprint differs; higher ZZ increases output impedance in low-current references | Choose TLZ3V6-GS18 for MiniMELF reliability and tighter VZ spread in high-stability designs |
Compared with BZX55C3V6-TR and MMSZ4685-TP, TLZ3V6-GS18 offers superior regulation accuracy due to its 20 mA test current, lower 60 Ω dynamic resistance, and tighter 3.455–3.695 V tolerance - making it optimal for high-precision analog feedback and sensor biasing where load-induced voltage shift must be minimized.
Availability
TLZ3V6-GS18 is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, automotive cabin control reference, and medical portable device power monitoring requiring stable component supply, long-term lifecycle continuity, and traceable sourcing.
Supply support for TLZ3V6-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 space-constrained, thermally demanding environments - targeting applications where low noise, sharp knee characteristics, and long-term stability outweigh cost-driven part selection.
FAQ
What is the exact Zener voltage range for TLZ3V6-GS18 at 20 mA test current?
The TLZ3V6-GS18 has a guaranteed Zener voltage range of 3.455 V to 3.695 V when tested at IZT = 20 mA, per Vishay Document 85635 Rev. 2.6. This 3.6 V nominal rating with ±0.145 V tolerance reflects tight process control for high-accuracy reference applications. The TLZ3V6-GS18 achieves this specification under standard 25 °C ambient conditions and is validated across full temperature range.
Does TLZ3V6-GS18 support lead-free reflow soldering?
Yes, TLZ3V6-GS18 is qualified for lead-free reflow per J-STD-020, with peak temperature up to 260 °C and MSL Level 1 rating - meaning unlimited floor life and no bake requirement before assembly. The MiniMELF (SOD-80) package uses UL 94 V-0 compliant molding compound, and the TLZ3V6-GS18 meets RoHS and REACH requirements as documented in Vishay's material declarations.
What is the maximum reverse leakage current for TLZ3V6-GS18, and at what voltage is it specified?
The maximum reverse leakage current for TLZ3V6-GS18 is 5 μA, measured at VR = 1 V and Tamb = 25 °C. This low leakage supports energy-efficient designs such as battery-backed sensor nodes and always-on monitoring circuits. The TLZ3V6-GS18 maintains this specification across its full storage temperature range (-65 °C to +175 °C), ensuring consistent performance in harsh environments.
Can TLZ3V6-GS18 be used in place of a 3.3 V Zener diode?
No - TLZ3V6-GS18 is specifically rated for 3.6 V nominal Zener voltage (3.455–3.695 V range), not 3.3 V. Substituting it for a 3.3 V device would result in ~9% higher regulated voltage, potentially violating system-level tolerances in feedback loops or reference dividers. For 3.3 V applications, TLZ3V3A or TLZ3V3B variants from the same series are appropriate alternatives with verified 3.16–3.53 V ranges.
What is the thermal resistance from junction to ambient for TLZ3V6-GS18 on a standard PCB?
The junction-to-ambient thermal resistance (RthJA) for TLZ3V6-GS18 is 500 K/W when mounted on a standard 50 mm × 50 mm × 1.6 mm FR-4 PCB, as specified in Vishay Document 85635. This value enables reliable 500 mW power dissipation without forced cooling. The TLZ3V6-GS18 leverages the MiniMELF package's thermal mass and copper pad coupling to achieve this performance, supporting continuous operation up to 175 °C junction temperature.
TLZ3V6-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):
- 3.6 V
- Tolerance:
- -
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 60 Ohms
- Current - Reverse Leakage @ Vr:
- -
- 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
TLZ3V6-GS18 FAQ
1.How can I place an order for TLZ3V6-GS18 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLZ3V6-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 TLZ3V6-GS18 reliable?
The price and inventory of TLZ3V6-GS18 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLZ3V6-GS18 is usually 5 days.
3.What payment methods are accepted for TLZ3V6-GS18?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLZ3V6-GS18 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLZ3V6-GS18?
TLZ3V6-GS18 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLZ3V6-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 TLZ3V6-GS18?
For technical support, including TLZ3V6-GS18 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLZ3V6-GS18 requirements.
6.How does Aetrix verify that TLZ3V6-GS18 is sourced from the original manufacturer or authorized distributors?
All TLZ3V6-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 TLZ3V6-GS18 meets industry standards.
7.What is the process for return or replacement of TLZ3V6-GS18?
All TLZ3V6-GS18 units undergo pre-shipment inspection (PSI). If there is an issue with TLZ3V6-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 TLZ3V6-GS18 part is unused and in its original packaging.
Return procedure for TLZ3V6-GS18:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLZ3V6-GS18 Tags
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