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Vishay General Semiconductor - Diodes Division TZQ5264B-GS18
- Part No.:
- TZQ5264B-GS18
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- Single Zener Diodes
- Package:
- SOD-80 Variant
- Datasheet:
-
TZQ5264B-GS18.pdf
- Description:
- DIODE ZENER 60V 500MW SOD80
- Quantity:
- Payment:
- Shipping:
Inventory:3,119
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Product details
Overview
TZQ5264B-GS18 from Vishay Semiconductors is a precision small-signal Zener diode with nominal zener voltage of 60 V, ±5 % tolerance, 2.1 mA test current (IZT), < 0.1 μA reverse leakage at VR = 46 V, and dynamic resistance of < 170 Ω - designed for stable voltage reference and regulation in low-power analog circuits.
For engineers reviewing the TZQ5264B-GS18 datasheet, TZQ5264B-GS18 pinout, TZQ5264B-GS18 application, or TZQ5264B-GS18 equivalent, this device is selected for high-stability DC biasing, overvoltage clamping in sensor interfaces, and precision voltage monitoring where tight VZ tolerance and low noise are critical.
Technical Context
This QuadroMELF-packaged Zener operates under thermal equilibrium conditions with case temperature maintained at 30 °C ± 2 °C during VZ measurement. Its sharp reverse breakdown characteristic and low noise support high-accuracy analog signal conditioning.
The device exhibits a positive temperature coefficient of +0.097 %/K and is rated for 500 mW total power dissipation with RthJA = 500 K/W on standard PCB layout - enabling reliable operation up to 175 °C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 60 V nominal, ±5 % tolerance - ensures predictable clamping level in reference circuits |
| Test Current (IZT) | 2.1 mA - defines operating point for specified VZ and dynamic resistance |
| Reverse Leakage (IR) | < 0.1 μA at VR = 46 V - minimizes error current in high-impedance bias networks |
| Dynamic Resistance (ZZ) | < 170 Ω at IZT - maintains regulation stability under varying load conditions |
| Power Dissipation (Ptot) | 500 mW - supports continuous operation with adequate PCB heatsinking |
| Temperature Coefficient (TKVZ) | +0.097 %/K - enables predictable VZ drift compensation in wide-temperature designs |
| Junction Temperature (Tj) | Max 175 °C - allows deployment in industrial and automotive under-hood environments |
Pinout & Package
QuadroMELF (SOD-80) glass-body surface-mount package with axial cathode identification marking; no discrete pins - terminals are end-cap anode and cathode contacts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (end cap) | Forward conduction terminal / reference ground node | Connected to circuit ground or lower-potential rail in shunt regulator configuration |
| Cathode (marked end) | Zener breakdown terminal / regulated output node | Provides stable 60 V reference when reverse-biased above breakdown threshold |
Key Features
| Feature | Design Value |
|---|---|
| Very sharp reverse characteristic | Enables precise, low-hysteresis voltage clamping without soft knee transition |
| Low reverse leakage current | Reduces loading error in high-resistance divider networks and battery-powered sensors |
| High stability over time and temperature | Supports long-term calibration integrity in metrology and instrumentation applications |
| Low noise performance | Minimizes voltage reference jitter in precision ADC/DAC reference chains |
| UL 94 V-0 molding compound | Meets flammability safety requirements for industrial control and medical equipment |
Applications
| Industrial Sensor Biasing | Portable Instrument Reference |
|---|---|
Use Scenario: Providing stable excitation voltage to resistive temperature detectors (RTDs) in factory-floor PLC modules. IC Role / Device Role / Timing Role: Shunt voltage reference regulating bias current across RTD element. Use Value: 60 V VZ and ±5 % tolerance ensure repeatable 4–20 mA loop calibration across -40 °C to +85 °C ambient. |
Use Scenario: Serving as primary voltage reference in handheld multimeters with auto-ranging analog front-end. IC Role / Device Role / Timing Role: Precision DC reference source for dual-slope ADC integrator timing. Use Value: Low noise and < 0.1 μA IR prevent measurement drift during battery-operated, high-impedance sampling. |
| Overvoltage Protection Clamp | Power Supply Feedback Divider |
Use Scenario: Clamping transient surges on 48 V telecom power rails before downstream DC-DC converters. IC Role / Device Role / Timing Role: Fast-response shunt protector absorbing energy above 60 V threshold. Use Value: Sharp reverse knee and 500 mW rating allow single-device clamping without series resistor derating. |
Use Scenario: Setting feedback voltage in isolated flyback converter secondary-side regulation. IC Role / Device Role / Timing Role: Zener-based reference for optocoupler-driven feedback loop. Use Value: +0.097 %/K TKVZ enables predictable compensation of output voltage drift with temperature. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX55C62-TR | 62 V nominal, ±5 %, 5 mA IZT, SOD-523 package, 300 mW rating | Lower power rating and smaller footprint - suited for space-constrained consumer electronics | Select when board area is limited and 300 mW suffices; verify thermal margin at 62 V operation |
| MMBZ5248BS-7-F | 18 V nominal, ±5 %, 20 mA IZT, SOT-23 package, 350 mW rating | Lower voltage, higher IZT, different package - not interchangeable without circuit redesign | Choose only for 18 V reference needs; not a drop-in replacement for TZQ5264B-GS18's 60 V function |
Compared with BZX55C62-TR and MMBZ5248BS-7-F, TZQ5264B-GS18 delivers higher voltage regulation (60 V), higher power handling (500 mW), and QuadroMELF stability - making it optimal for industrial-grade shunt references where thermal robustness and long-term drift matter.
Availability
TZQ5264B-GS18 is available at Aetrix Electronics and suitable for industrial sensor biasing, portable instrument reference, and overvoltage protection clamp applications requiring stable component supply, consistent parametric performance, and traceable sourcing.
Supply support for TZQ5264B-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 TZQ52xxB family is engineered for precision voltage reference and stabilization in harsh-environment analog systems - emphasizing low noise, tight tolerance, and thermal stability over extended lifetimes.
FAQ
What is the nominal zener voltage and tolerance of TZQ5264B-GS18?
The TZQ5264B-GS18 has a nominal zener voltage of 60 V with a tolerance of ±5 %, measured at thermal equilibrium with case temperature held at 30 °C ± 2 °C. This specification ensures predictable regulation behavior in precision reference designs where absolute voltage accuracy is required.
What is the maximum power dissipation rating for TZQ5264B-GS18?
TZQ5264B-GS18 is rated for 500 mW total power dissipation under conditions where thermal resistance from junction to ambient (RthJA) is ≤ 300 K/W. On a standard 50 mm × 50 mm × 1.6 mm PCB, its RthJA is 500 K/W - requiring appropriate layout or derating above Tamb = 25 °C.
Does TZQ5264B-GS18 have a defined cathode marking?
Yes, TZQ5264B-GS18 uses QuadroMELF (SOD-80) packaging with cathode identification marked on one end cap. The marked end is the cathode, and the unmarked end is the anode - critical for correct orientation in shunt regulator and clamping configurations.
What is the temperature coefficient of TZQ5264B-GS18, and how does it affect design?
TZQ5264B-GS18 has a temperature coefficient of +0.097 %/K, meaning its zener voltage increases predictably with rising junction temperature. This positive drift enables compensation strategies in feedback networks where opposing negative coefficients exist - improving overall system thermal stability.
Is TZQ5264B-GS18 suitable for low-noise reference applications?
Yes, TZQ5264B-GS18 is explicitly characterized for low noise performance, supported by its very sharp reverse characteristic and low reverse leakage (< 0.1 μA). These traits make TZQ5264B-GS18 appropriate for use in high-resolution data acquisition systems where reference voltage integrity directly impacts measurement fidelity.
TZQ5264B-GS18 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Series:
- -
- Package/Case:
- SOD-80 Variant
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 60 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 170 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 46 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
TZQ5264B-GS18 FAQ
1.How can I place an order for TZQ5264B-GS18 through Aetrix?
Please submit a Request for Quotation (RFQ) for TZQ5264B-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 TZQ5264B-GS18 reliable?
The price and inventory of TZQ5264B-GS18 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TZQ5264B-GS18 is usually 5 days.
3.What payment methods are accepted for TZQ5264B-GS18?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TZQ5264B-GS18 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TZQ5264B-GS18?
TZQ5264B-GS18 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TZQ5264B-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 TZQ5264B-GS18?
For technical support, including TZQ5264B-GS18 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TZQ5264B-GS18 requirements.
6.How does Aetrix verify that TZQ5264B-GS18 is sourced from the original manufacturer or authorized distributors?
All TZQ5264B-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 TZQ5264B-GS18 meets industry standards.
7.What is the process for return or replacement of TZQ5264B-GS18?
All TZQ5264B-GS18 units undergo pre-shipment inspection (PSI). If there is an issue with TZQ5264B-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 TZQ5264B-GS18 part is unused and in its original packaging.
Return procedure for TZQ5264B-GS18:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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