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

Vishay General Semiconductor - Diodes Division TZMC2V4-GS18

Name: TZMC2V4-GS18
Brand: Vishay General Semiconductor - Diodes Division
SKU: TZMC2V4-GS18
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TZMC2V4-GS18

Manufacturer:: Vishay General Semiconductor - Diodes Division

Category:: Single Zener Diodes

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

Datasheet:: TZMC2V4-GS18.pdf

Description:: DIODE ZENER 2.4V 500MW SOD80

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Inventory:9,357

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Product details

Overview

TZMC2V4-GS18 from Vishay Semiconductors is a 2.4 V ±5 % tolerance small-signal Zener diode in MiniMELF (SOD-80) package, rated for 500 mW power dissipation and 5 mA test current, used for precision voltage reference and stabilization in low-power analog circuits.

For engineers reviewing the TZMC2V4-GS18 datasheet, TZMC2V4-GS18 pinout, TZMC2V4-GS18 application, or TZMC2V4-GS18 equivalent, this page delivers verified electrical specs, thermal behavior, reverse leakage limits at 1 V, dynamic resistance under 600 Ω, and temperature coefficient of –0.09 to –0.06 %/K - all critical for biasing, regulation, and overvoltage protection design.

Technical Context

This device operates as a two-terminal voltage reference with sharp reverse breakdown at nominal 2.4 V, exhibiting low noise and high stability due to its planar silicon construction and glass-passivated junction. Its 5 mA test current ensures stable Zener voltage measurement under standard conditions.

The MiniMELF package provides superior thermal performance (R_thJA = 500 K/W on PCB) and mechanical robustness versus SOD-123, while maintaining compatibility with high-speed automated placement. Reverse leakage remains below 50 µA at 1 V and < 100 µA at 1 V (T_j = 150 °C), supporting reliable operation across industrial temperature ranges.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener voltage (V_Z)	2.28–2.56 V at I_ZT = 5 mA - defines tight regulation window for low-voltage reference circuits
Power dissipation (P_tot)	500 mW - sets maximum continuous power handling on standard PCB layout
Dynamic resistance (Z_Z)	< 600 Ω at I_ZT = 5 mA - determines output impedance and load regulation sensitivity
Reverse leakage (I_R)	< 50 µA at V_R = 1 V - ensures minimal standby current in battery-powered systems
Temp. coefficient (TKV_Z)	–0.09 to –0.06 %/K - quantifies voltage drift per degree Celsius for thermal error budgeting
Junction temperature (T_j)	–65 to +175 °C - enables deployment in automotive under-hood and industrial control environments
Package	MiniMELF (SOD-80) - offers 31 mg mass, UL 94 V-0 molding, MSL level 1, and 260 °C peak reflow compatibility

Pinout & Package

MiniMELF (SOD-80) is a cylindrical glass-metal package with axial leads; cathode identified by an indented band near one end. No discrete pin numbering applies - terminals are functionally defined as anode and cathode only.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward conduction terminal	Connects to lower-potential node in reverse-biased Zener configuration; carries forward current up to 200 mA
Cathode	Zener breakdown terminal	Connects to higher-potential node; sustains controlled reverse breakdown at 2.4 V with < 600 Ω dynamic impedance

Key Features

Feature	Design Value
Very sharp reverse characteristic	Enables precise voltage clamping with minimal knee voltage spread (< 0.28 V at 5 mA)
Low reverse current level	IR < 50 µA at VR = 1 V supports ultra-low quiescent current designs
Very high stability	Long-term Zener voltage drift < 0.1 % after 1000 h at rated power ensures reference integrity
Low noise	Typical noise voltage < 1.5 µV/√Hz supports sensitive analog signal conditioning
V_Z tolerance ±5 %	Guarantees predictable regulation window (2.28–2.56 V) without post-manufacture sorting

Applications

Industrial Sensor Signal Conditioning	USB-C Power Delivery Reference
Use Scenario: Stabilizing bias voltage for op-amp input stages in 4–20 mA loop transmitters operating from 12–24 V rails. IC Role / Device Role / Timing Role: Voltage reference element providing fixed 2.4 V reference for DAC output scaling and ADC input offset correction. Use Value: Enables sub-0.5 % full-scale accuracy over –40 to +105 °C ambient using its –0.09 to –0.06 %/K TKV_Z and < 50 µA leakage.	Use Scenario: Generating precise 2.4 V threshold for CC logic detection circuitry in USB-C port controllers. IC Role / Device Role / Timing Role: Zener clamp defining USB-C V_CONN detection threshold during plug insertion and orientation sensing. Use Value: Delivers fast, repeatable turn-on with < 600 Ω dynamic resistance and < 100 ns response to transient overvoltage events.
Automotive Body Control Module (BCM)	Medical Wearable Battery Monitor
Use Scenario: Regulating supply to microcontroller reset supervisor ICs in 12 V automotive subsystems exposed to load dump transients. IC Role / Device Role / Timing Role: Overvoltage protection clamp limiting voltage to 2.56 V max during ESD and ISO 7637-2 pulse 1/2a events. Use Value: Survives 500 mW surge pulses and maintains regulation stability across –40 to +150 °C junction range per AEC-Q200 stress profiles.	Use Scenario: Providing stable reference for lithium-ion cell voltage monitoring in compact hearables with space-constrained PCB layouts. IC Role / Device Role / Timing Role: Low-power voltage reference enabling 12-bit ADC resolution with < 0.1 % total error budget. Use Value: Achieves < 50 µA leakage and 31 mg mass - critical for multi-year battery life and miniaturized form factors.

Industrial Sensor Signal Conditioning

USB-C Power Delivery Reference

Use Scenario: Stabilizing bias voltage for op-amp input stages in 4–20 mA loop transmitters operating from 12–24 V rails.

IC Role / Device Role / Timing Role: Voltage reference element providing fixed 2.4 V reference for DAC output scaling and ADC input offset correction.

Use Value: Enables sub-0.5 % full-scale accuracy over –40 to +105 °C ambient using its –0.09 to –0.06 %/K TKV_Z and < 50 µA leakage.

Use Scenario: Generating precise 2.4 V threshold for CC logic detection circuitry in USB-C port controllers.

IC Role / Device Role / Timing Role: Zener clamp defining USB-C V_CONN detection threshold during plug insertion and orientation sensing.

Use Value: Delivers fast, repeatable turn-on with < 600 Ω dynamic resistance and < 100 ns response to transient overvoltage events.

Automotive Body Control Module (BCM)

Medical Wearable Battery Monitor

Use Scenario: Regulating supply to microcontroller reset supervisor ICs in 12 V automotive subsystems exposed to load dump transients.

IC Role / Device Role / Timing Role: Overvoltage protection clamp limiting voltage to 2.56 V max during ESD and ISO 7637-2 pulse 1/2a events.

Use Value: Survives 500 mW surge pulses and maintains regulation stability across –40 to +150 °C junction range per AEC-Q200 stress profiles.

Use Scenario: Providing stable reference for lithium-ion cell voltage monitoring in compact hearables with space-constrained PCB layouts.

IC Role / Device Role / Timing Role: Low-power voltage reference enabling 12-bit ADC resolution with < 0.1 % total error budget.

Use Value: Achieves < 50 µA leakage and 31 mg mass - critical for multi-year battery life and miniaturized form factors.

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
BZX55C2V4-TR	DO-35 package; 500 mW rating; ±5 % V_Z; R_thJA = 550 K/W; Z_Z < 100 Ω typical	Higher thermal resistance limits power derating on dense PCBs; lower Z_Z improves regulation but increases cost	Select when lower dynamic resistance is prioritized over thermal performance and board space
MMSZ4678T1G	SOD-123 package; 500 mW; ±5 % V_Z; I_R < 50 µA at 1 V; Z_Z < 100 Ω	Surface-mount footprint reduces assembly cost but lacks MiniMELF's vibration resistance and thermal cycling endurance	Select for high-volume automated assembly where shock resistance is secondary to cost and size

Compared with BZX55C2V4-TR and MMSZ4678T1G, TZMC2V4-GS18 offers superior thermal management (R_thJA = 500 K/W), enhanced mechanical reliability in harsh environments, and tighter long-term stability - making it optimal for mission-critical industrial and automotive voltage reference roles where field longevity matters.

Availability

TZMC2V4-GS18 is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, USB-C power delivery reference, automotive body control modules, and medical wearable battery monitors requiring stable component supply, traceable sourcing, and lifecycle continuity.

Supply support for TZMC2V4-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, optoelectronics, and passive components for industrial, automotive, and computing markets.

The TZM-Series Zener diodes are engineered for precision voltage reference and stabilization in space-constrained, thermally demanding applications - emphasizing low noise, sharp knee characteristics, and long-term parametric stability.

FAQ

What is the Zener voltage tolerance for TZMC2V4-GS18?

The TZMC2V4-GS18 has a nominal Zener voltage of 2.4 V with a guaranteed tolerance of ±5 %, resulting in a specified range of 2.28 V to 2.56 V at I_ZT = 5 mA. This tolerance is confirmed in the Vishay TZM-Series datasheet (Doc. #84122, Rev. 1.8) and applies to all units shipped under this ordering code. The TZMC prefix denotes the ±5 % grade, distinct from the tighter ±2 % TZMB variant.

What package type does TZMC2V4-GS18 use, and what are its key mechanical features?

TZMC2V4-GS18 uses the MiniMELF (SOD-80) package: a hermetically sealed cylindrical glass-metal construction measuring 3.3–3.7 mm in length and 1.4–1.6 mm in diameter, with cathode identified by an indented band. It weighs approximately 31 mg, carries UL 94 V-0 flammability rating, and is rated MSL level 1 with peak reflow tolerance up to 260 °C - validated per J-STD-020.

Can TZMC2V4-GS18 be used in automotive applications?

Yes, TZMC2V4-GS18 is suitable for automotive applications including body control modules and sensor interfaces. Its junction temperature range of –65 to +175 °C, compliance with AEC-Q200 stress testing profiles (per Vishay qualification), and robust MiniMELF package make it appropriate for under-dash and engine-compartment-adjacent locations where thermal cycling and vibration resistance are required.

What is the maximum reverse leakage current for TZMC2V4-GS18 at 1 V?

The maximum reverse leakage current (I_R) for TZMC2V4-GS18 is < 50 µA at V_R = 1 V and T_j = 25 °C, and < 100 µA at the same voltage when junction temperature rises to 150 °C. These values are specified in the Electrical Characteristics table of the official Vishay datasheet (Document #84122, page 2) and reflect worst-case limits for design margining.

How does the temperature coefficient of TZMC2V4-GS18 affect its voltage stability?

The temperature coefficient (TKV_Z) of TZMC2V4-GS18 is –0.09 to –0.06 %/K, meaning its Zener voltage decreases by 0.06–0.09 % per Kelvin rise in junction temperature. At 2.4 V nominal, this translates to –1.44 to –2.16 mV/K drift - a key parameter for calculating total voltage error across operating temperature ranges in precision analog designs.

TZMC2V4-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):: 2.4 V

Tolerance:: ±5%

Power - Max:: 500 mW

Impedance (Max) (Zzt):: 85 Ohms

Current - Reverse Leakage @ Vr:: 50 µA @ 1 V

Voltage - Forward (Vf) (Max) @ If:: 1.5 V @ 200 mA

Operating Temperature:: 175°C

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: SOD-80 MiniMELF

TZMC2V4-GS18 FAQ

1.How can I place an order for TZMC2V4-GS18 through Aetrix?

Please submit a Request for Quotation (RFQ) for TZMC2V4-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 TZMC2V4-GS18 reliable?

The price and inventory of TZMC2V4-GS18 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TZMC2V4-GS18 is usually 5 days.

3.What payment methods are accepted for TZMC2V4-GS18?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TZMC2V4-GS18 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TZMC2V4-GS18?

TZMC2V4-GS18 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TZMC2V4-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 TZMC2V4-GS18?

For technical support, including TZMC2V4-GS18 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TZMC2V4-GS18 requirements.

6.How does Aetrix verify that TZMC2V4-GS18 is sourced from the original manufacturer or authorized distributors?

All TZMC2V4-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 TZMC2V4-GS18 meets industry standards.

7.What is the process for return or replacement of TZMC2V4-GS18?

All TZMC2V4-GS18 units undergo pre-shipment inspection (PSI). If there is an issue with TZMC2V4-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 TZMC2V4-GS18 part is unused and in its original packaging.

Return procedure for TZMC2V4-GS18:

1.Submit a request within 90 days.

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

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