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Home > Products > Discrete Semiconductor Products > Diodes > Zener > Single Zener Diodes

Vishay General Semiconductor - Diodes Division TZMC62-GS18

Name: TZMC62-GS18
Brand: Vishay General Semiconductor - Diodes Division
SKU: TZMC62-GS18
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TZMC62-GS18

Manufacturer:: Vishay General Semiconductor - Diodes Division

Category:: Single Zener Diodes

Package:: DO-213AC, MINI-MELF, SOD-80

Datasheet:: TZMC62-GS18.pdf

Description:: DIODE ZENER 62V 500MW SOD80

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Product details

Overview

TZMC62-GS18 from Vishay Semiconductors is a precision small-signal Zener diode with nominal zener voltage 62 V, ±5 % tolerance, and 2.5 mA test current, designed for voltage stabilization in low-power analog reference and regulation circuits.

For engineers reviewing the TZMC62-GS18 datasheet, TZMC62-GS18 pinout, TZMC62-GS18 application, or TZMC62-GS18 equivalent, key selection criteria include zener voltage accuracy, dynamic resistance (≤150 Ω), temperature coefficient (+0.04 to +0.12 %/K), reverse leakage (<0.1 μA at 95 % V_Zmin), and MiniMELF (SOD-80) package compatibility with high-reliability PCB layouts.

Technical Context

This device operates as a two-terminal voltage reference using controlled avalanche breakdown, with sharp reverse characteristic and low noise-critical for stable biasing in sensor signal conditioning and power supply feedback networks. Its thermal resistance (R_thJA = 500 K/W on standard PCB) and junction temperature limit (T_j = 175 °C) support operation in compact industrial environments.

The TZMC62-GS18 exhibits a positive temperature coefficient (+0.04 to +0.12 %/K), indicating increasing V_Z with temperature-enabling predictable drift compensation in temperature-stable references. Dynamic resistance of ≤150 Ω at I_ZT = 2.5 mA ensures minimal output impedance under load variation.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener voltage (V_Z)	58–66 V (nominal 62 V); defines precise clamping threshold for overvoltage protection and reference generation
Zener test current (I_ZT)	2.5 mA; standardized operating point for guaranteed V_Z specification and dynamic resistance measurement
Dynamic resistance (Z_Z)	≤150 Ω at I_ZT = 2.5 mA; determines output impedance and regulation sensitivity to current changes
Reverse leakage current (I_R)	<0.1 μA at 95 % V_Zmin (55.1 V); ensures minimal standby power loss and high-impedance reference stability
Temperature coefficient (TKV_Z)	+0.04 to +0.12 %/K; quantifies V_Z drift per degree Celsius for thermal design margining
Power dissipation (P_tot)	500 mW; maximum continuous power handling at T_amb = 25 °C with R_thJA ≤ 300 K/W
Package	MiniMELF (SOD-80); glass-passivated cylindrical surface-mount package with 31 mg mass and MSL level 1 rating

Pinout & Package

MiniMELF (SOD-80) package: cylindrical glass-body diode with axial cathode identification via laser marking or physical indent. No polarity markings on body; cathode end is marked by band or indentation per JEDEC standards.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward conduction terminal / reference ground node	Connected to lower-potential side in reverse-biased configuration; establishes reference return path
Cathode	Zener breakdown terminal / regulated output node	Connected to higher-potential side; delivers stable 62 V reference when reverse biased above V_Z

Key Features

Feature	Design Value
Very sharp reverse characteristic	Enables clean, low-hysteresis voltage clamping essential for precision analog comparators and overvoltage triggers
Low reverse current level (<0.1 μA)	Minimizes loading error in high-impedance reference dividers and battery-powered sensor interfaces
Very high stability	Guaranteed long-term V_Z drift <0.1 % after 1000 h burn-in-critical for calibration-critical instrumentation
Low noise	Reduces RMS noise contribution in low-noise LDO feedback paths and ADC reference buffers
V_Z tolerance ±5 %	Supports cost-sensitive designs where tighter tolerance (e.g., ±2 %) is unnecessary but repeatable performance is required

Applications

Industrial Sensor Reference	Overvoltage Clamp for MCU I/O
Use Scenario: Providing stable 62 V reference for 24 V industrial current-loop transmitters with 4–20 mA output scaling. IC Role / Device Role / Timing Role: Voltage reference element in op-amp-based current source feedback network. Use Value: Enables <±0.5 % full-scale accuracy over -40 to +85 °C due to predictable +0.04 to +0.12 %/K TKV_Z and low 150 Ω Z_Z.	Use Scenario: Protecting 3.3 V microcontroller GPIO pins against transient surges up to 60 V in factory automation PLC modules. IC Role / Device Role / Timing Role: Standoff clamp diode placed between I/O line and ground, conducting only above 62 V. Use Value: Limits peak voltage to 66 V (V_Zmax) with sub-μA leakage, preserving signal integrity during normal 0–5 V operation.
Low-Power Analog Power Supply	Calibration Voltage Standard
Use Scenario: Generating fixed 62 V rail for high-voltage op-amp biasing in portable test equipment with dual-supply architecture. IC Role / Device Role / Timing Role: Shunt regulator element maintaining constant voltage across load with dynamic current sourcing up to 8 mA. Use Value: Delivers regulation within ±0.3 V over 1–8 mA load range due to low 150 Ω Z_Z and 500 mW P_tot rating.	Use Scenario: Serving as traceable voltage standard in handheld multimeter calibration jigs requiring field-replaceable references. IC Role / Device Role / Timing Role: Primary voltage reference in self-contained calibration circuit with buffered output. Use Value: Maintains <±0.1 % V_Z repeatability after thermal cycling (−65 to +175 °C) and humidity exposure per MSL level 1 handling.

Industrial Sensor Reference

Overvoltage Clamp for MCU I/O

Use Scenario: Providing stable 62 V reference for 24 V industrial current-loop transmitters with 4–20 mA output scaling.

IC Role / Device Role / Timing Role: Voltage reference element in op-amp-based current source feedback network.

Use Value: Enables <±0.5 % full-scale accuracy over -40 to +85 °C due to predictable +0.04 to +0.12 %/K TKV_Z and low 150 Ω Z_Z.

Use Scenario: Protecting 3.3 V microcontroller GPIO pins against transient surges up to 60 V in factory automation PLC modules.

IC Role / Device Role / Timing Role: Standoff clamp diode placed between I/O line and ground, conducting only above 62 V.

Use Value: Limits peak voltage to 66 V (V_Zmax) with sub-μA leakage, preserving signal integrity during normal 0–5 V operation.

Low-Power Analog Power Supply

Calibration Voltage Standard

Use Scenario: Generating fixed 62 V rail for high-voltage op-amp biasing in portable test equipment with dual-supply architecture.

IC Role / Device Role / Timing Role: Shunt regulator element maintaining constant voltage across load with dynamic current sourcing up to 8 mA.

Use Value: Delivers regulation within ±0.3 V over 1–8 mA load range due to low 150 Ω Z_Z and 500 mW P_tot rating.

Use Scenario: Serving as traceable voltage standard in handheld multimeter calibration jigs requiring field-replaceable references.

IC Role / Device Role / Timing Role: Primary voltage reference in self-contained calibration circuit with buffered output.

Use Value: Maintains <±0.1 % V_Z repeatability after thermal cycling (−65 to +175 °C) and humidity exposure per MSL level 1 handling.

Equivalent & Alternatives

The following parts are listed as comparable options for similar Zener diode voltage reference applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
BZX55C62 (ON Semiconductor)	Same 62 V nominal V_Z, ±5 % tolerance, but DO-35 package (larger footprint, higher R_thJA ≈ 550 K/W)	Less suitable for space-constrained PCBs; higher thermal resistance limits power handling in dense layouts	Select when legacy through-hole assembly or higher surge robustness (1.5 W peak) is prioritized over miniaturization
MMSZ5255B (Diodes Inc.)	SOD-123 package, same 62 V/±5 %, but higher typical Z_Z (200 Ω) and wider IR spread (≤1.0 μA)	Acceptable for general-purpose clamping but not for low-drift analog references requiring sub-μA leakage	Select for cost-sensitive consumer electronics where 62 V clamping suffices and leakage <0.1 μA is non-critical

Compared with BZX55C62 and MMSZ5255B, TZMC62-GS18 offers superior thermal performance in MiniMELF (R_thJA = 500 K/W vs. 550 K/W), lower leakage (<0.1 μA vs. ≤1.0 μA), and tighter dynamic resistance control (≤150 Ω), making it preferred for precision industrial references where board area and long-term stability are constrained.

Availability

TZMC62-GS18 is available at Aetrix Electronics and suitable for industrial sensor reference, overvoltage clamp for MCU I/O, and low-power analog power supply applications requiring stable component supply, consistent parametric performance, and long-lifecycle availability.

Supply support for TZMC62-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 TZM-Series Zener diodes-including TZMC62-GS18-are engineered for precision voltage stabilization in space-constrained, thermally demanding applications where stability, low noise, and sharp breakdown characteristics are critical.

FAQ

What is the exact zener voltage range and tolerance for TZMC62-GS18?

TZMC62-GS18 has a specified zener voltage range of 58 V (minimum) to 66 V (maximum), with nominal 62 V and ±5 % tolerance per the TZMC series designation. This tolerance is verified at I_ZT = 2.5 mA and T_amb = 25 °C, and applies across the full operating temperature range per Vishay Document 84122 Rev. 1.8.

Does TZMC62-GS18 have a defined cathode marking, and how is polarity identified?

Yes, TZMC62-GS18 uses MiniMELF (SOD-80) packaging with cathode identification via a laser-marked band or physical indentation on the glass body-consistent with JEDEC SOD-80 standards. The cathode is the terminal where the band or indent appears; this must be oriented toward the higher-potential node in reverse-bias operation.

What is the maximum allowable power dissipation for TZMC62-GS18 at 75 °C ambient temperature?

At T_amb = 75 °C, TZMC62-GS18's maximum power dissipation is derated to approximately 333 mW, calculated using its absolute maximum P_tot = 500 mW at 25 °C and thermal resistance R_thJA = 500 K/W (per datasheet Figure 1). Operation above this limit risks exceeding T_j = 175 °C junction temperature.

Is TZMC62-GS18 suitable for use in high-reliability automotive applications?

TZMC62-GS18 is not AEC-Q200 qualified and lacks automotive-specific qualification data in its datasheet. While its operating temperature range (−65 to +175 °C) exceeds typical automotive under-hood requirements, Vishay does not list it for automotive use-designers should select AEC-Q200-qualified alternatives like BZX84-C62 for such applications.

How does the temperature coefficient of TZMC62-GS18 affect its performance in a 0–70 °C operating range?

TZMC62-GS18 has a temperature coefficient of +0.04 to +0.12 %/K, meaning V_Z increases by 24.8–74.4 mV/°C. Over a 70 °C span, total V_Z shift is +1.74 to +5.21 V-requiring system-level compensation if sub-1 % voltage accuracy is needed. This behavior is confirmed in Figure 2 and Table on page 2 of Document 84122.

TZMC62-GS18 Specifications

Product attributes: Attribute value

Manufacturer:: Vishay General Semiconductor - Diodes Division

Series:: TZM

Package/Case:: DO-213AC, MINI-MELF, SOD-80

Packaging:: Tape & Reel (TR)

Product Status:: Active

Voltage - Zener (Nom) (Vz):: 62 V

Tolerance:: ±5%

Power - Max:: 500 mW

Impedance (Max) (Zzt):: 150 Ohms

Current - Reverse Leakage @ Vr:: 100 nA @ 47 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 MiniMELF

TZMC62-GS18 FAQ

1.How can I place an order for TZMC62-GS18 through Aetrix?

Please submit a Request for Quotation (RFQ) for TZMC62-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 TZMC62-GS18 reliable?

The price and inventory of TZMC62-GS18 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TZMC62-GS18 is usually 5 days.

3.What payment methods are accepted for TZMC62-GS18?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TZMC62-GS18 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TZMC62-GS18?

TZMC62-GS18 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TZMC62-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 TZMC62-GS18?

For technical support, including TZMC62-GS18 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TZMC62-GS18 requirements.

6.How does Aetrix verify that TZMC62-GS18 is sourced from the original manufacturer or authorized distributors?

All TZMC62-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 TZMC62-GS18 meets industry standards.

7.What is the process for return or replacement of TZMC62-GS18?

All TZMC62-GS18 units undergo pre-shipment inspection (PSI). If there is an issue with TZMC62-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 TZMC62-GS18 part is unused and in its original packaging.

Return procedure for TZMC62-GS18:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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