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

onsemi SZBZX84C6V2ET1G

Name: SZBZX84C6V2ET1G
Brand: onsemi
SKU: SZBZX84C6V2ET1G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SZBZX84C6V2ET1G

Manufacturer:: onsemi

Category:: Single Zener Diodes

Package:: TO-236-3, SC-59, SOT-23-3

Datasheet:: SZBZX84C6V2ET1G.pdf

Description:: DIODE ZENER 6.2V 225MW SOT23-3

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Product details

Overview

SZBZX84C6V2ET1G from onsemi is a 6.2 V, 250 mW surface-mount Zener diode in SOT-23 package, designed for precision voltage regulation and transient suppression in space-constrained circuits. It delivers ±0.4 V tolerance at 5 mA test current, 10 Ω dynamic impedance, and operates across −65 °C to +150 °C junction temperature range. It is used in voltage reference, overvoltage protection, and biasing circuits for portable power management.

For engineers reviewing the SZBZX84C6V2ET1G datasheet, pinout, applications, or equivalent options, key selection criteria include Zener voltage tolerance (±0.4 V), low dynamic impedance (10 Ω @ 5 mA), ESD robustness (>16 kV HBM), thermal resistance (500 °C/W on FR-5), and AEC-Q101 qualification for automotive use.

Technical Context

This device functions as a two-terminal, reverse-biased voltage reference with specified breakdown at 6.2 V ±0.4 V under 5 mA test current. Its 10 Ω Zener impedance ensures stable regulation under varying load conditions, while its 250 mW power rating is derated linearly above 25 °C (2.0 mW/°C on FR-5 board).

The SOT-23 package features cathode-indicated polarity band, Pb-free construction, UL 94 V-0 flammability rating, and supports automated placement. It exhibits a positive temperature coefficient of +3.7 mV/°C at 5 mA, enabling predictable drift compensation in temperature-sensitive references.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage (V_Z)	5.8 V to 6.6 V @ 5 mA - defines regulation window for stable 6.2 V reference under nominal bias
Dynamic Impedance (Z_ZT)	10 Ω @ 5 mA - ensures minimal output voltage variation during load transients
Power Dissipation	250 mW on FR-5 board @ 25 °C - sets maximum continuous DC power before thermal derating applies
Reverse Leakage Current	3.0 µA @ 4.0 V - guarantees low quiescent current in standby or high-impedance sensing nodes
Temperature Coefficient	+3.7 mV/°C @ 5 mA - enables accurate prediction of voltage drift over industrial temperature range
Junction Temperature Range	−65 °C to +150 °C - supports operation in under-hood automotive and industrial environments
ESD Rating	Class 3 (>16 kV) per HBM - provides robust handling without external protection in assembly and field use

Pinout & Package

SOT-23 (TO-236) package: 2.90 mm × 1.30 mm × 1.00 mm body, 1.90 mm lead pitch, void-free thermosetting plastic case with corrosion-resistant solderable finish. Cathode identified by polarity band.

Pin/Terminal	Circuit Role	Design Meaning
1 - Anode	Forward conduction terminal / Zener cathode reference node	Connected to lower-potential side in reverse-bias regulation; must be held ≤ V_Z − 0.9 V for forward conduction
2 - No Connection	Internal die pad, electrically isolated	No PCB trace or solder joint required; floating terminal reduces parasitic capacitance and layout complexity
3 - Cathode	Zener breakdown terminal / regulation output node	Connected to regulated voltage rail; polarity band aligns with this pin for visual orientation during placement

Key Features

Feature	Design Value
AEC-Q101 qualified	Validated for automotive applications including engine control modules and infotainment power rails
250 mW FR-5 power rating	Enables compact voltage clamping in handheld devices without heatsinking or board area penalty
185 pF capacitance @ 0 V	Minimizes signal distortion in high-frequency bias networks and RF detector circuits
Pb-free and RoHS compliant	Meets global environmental compliance requirements for consumer, industrial, and automotive production
UL 94 V-0 flammability	Reduces fire risk in enclosed enclosures and high-density PCB assemblies

Applications

Portable Power Monitoring	Automotive Sensor Biasing
Use Scenario: Real-time battery voltage sampling in Bluetooth earbuds using a 12-bit ADC with internal reference. IC Role / Device Role / Timing Role: Provides stable 6.2 V reference for ADC input scaling and overvoltage detection threshold. Use Value: Enables ±1% voltage measurement accuracy across −20 °C to +70 °C ambient, leveraging tight V_Z tolerance and low Z_ZT.	Use Scenario: Biasing a Hall-effect position sensor in an EPS (Electric Power Steering) module. IC Role / Device Role / Timing Role: Supplies regulated 6.2 V excitation to sensor bridge, rejecting supply ripple from 12 V vehicle bus. Use Value: Maintains sensor linearity within ±0.5% over temperature due to predictable +3.7 mV/°C TC and low leakage (<3 µA).
USB-C Port Protection	Industrial PLC Input Conditioning
Use Scenario: Overvoltage clamp on VBUS line of USB-C receptacle to protect downstream PMIC. IC Role / Device Role / Timing Role: Fast-acting shunt regulator that clamps transients >6.6 V before damage occurs. Use Value: Absorbs 225 W peak pulses (8 × 20 µs) without failure, meeting IEC 61000-4-5 Level 3 surge immunity.	Use Scenario: Signal conditioning front-end for 4–20 mA analog input channel in DIN-rail mounted controller. IC Role / Device Role / Timing Role: Sets precise 6.2 V reference for current-to-voltage conversion op-amp feedback network. Use Value: Delivers <10 ppm/°C effective reference stability via matched TC and low Z_ZT, reducing calibration drift.

Portable Power Monitoring

Automotive Sensor Biasing

Use Scenario: Real-time battery voltage sampling in Bluetooth earbuds using a 12-bit ADC with internal reference.

IC Role / Device Role / Timing Role: Provides stable 6.2 V reference for ADC input scaling and overvoltage detection threshold.

Use Value: Enables ±1% voltage measurement accuracy across −20 °C to +70 °C ambient, leveraging tight V_Z tolerance and low Z_ZT.

Use Scenario: Biasing a Hall-effect position sensor in an EPS (Electric Power Steering) module.

IC Role / Device Role / Timing Role: Supplies regulated 6.2 V excitation to sensor bridge, rejecting supply ripple from 12 V vehicle bus.

Use Value: Maintains sensor linearity within ±0.5% over temperature due to predictable +3.7 mV/°C TC and low leakage (<3 µA).

USB-C Port Protection

Industrial PLC Input Conditioning

Use Scenario: Overvoltage clamp on VBUS line of USB-C receptacle to protect downstream PMIC.

IC Role / Device Role / Timing Role: Fast-acting shunt regulator that clamps transients >6.6 V before damage occurs.

Use Value: Absorbs 225 W peak pulses (8 × 20 µs) without failure, meeting IEC 61000-4-5 Level 3 surge immunity.

Use Scenario: Signal conditioning front-end for 4–20 mA analog input channel in DIN-rail mounted controller.

IC Role / Device Role / Timing Role: Sets precise 6.2 V reference for current-to-voltage conversion op-amp feedback network.

Use Value: Delivers <10 ppm/°C effective reference stability via matched TC and low Z_ZT, reducing calibration drift.

Equivalent & Alternatives

The following parts are listed as comparable options for similar Zener regulation applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
BZX84C6V2ET1G	Same electrical specs but lacks AEC-Q101 qualification and SZ-prefix automotive traceability	Approved for commercial-grade portable electronics only; not suitable for automotive PPAP programs	Select when cost sensitivity outweighs automotive compliance requirements and full lifecycle documentation is unnecessary
MMSZ4687T1G	6.2 V nominal, 500 mW rating, higher Z_ZT (20 Ω), different SOD-123 package (3.7 mm × 1.6 mm)	Higher power handling but larger footprint; less suited for ultra-dense layouts like wearables	Choose when thermal margin is critical and board space allows larger package; verify layout clearance for SOD-123

Compared with BZX84C6V2ET1G and MMSZ4687T1G, SZBZX84C6V2ET1G uniquely combines AEC-Q101 qualification, SOT-23 miniaturization, and 10 Ω impedance-making it optimal for automotive and high-density industrial designs where regulatory compliance and space efficiency are non-negotiable.

Availability

SZBZX84C6V2ET1G is available at Aetrix Electronics and suitable for automotive power management, portable device voltage reference, and industrial sensor biasing requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for SZBZX84C6V2ET1G 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

onsemi is a global semiconductor supplier delivering energy-efficient silicon solutions for automotive, industrial, cloud, medical, and IoT applications.

SZBZX84C6V2ET1G belongs to the BZX84CxxxET1G/SZBZX84CxxxET1G series-engineered for high-reliability voltage regulation in space-constrained, thermally demanding environments such as automotive ECUs and portable electronics.

FAQ

What is the Zener voltage tolerance of SZBZX84C6V2ET1G at 5 mA?

The SZBZX84C6V2ET1G has a Zener voltage range of 5.8 V to 6.6 V at 5 mA test current, corresponding to a ±0.4 V absolute tolerance around the nominal 6.2 V rating. This tolerance is guaranteed across the full operating temperature range and forms the basis for precision reference design in the SZBZX84C6V2ET1G datasheet.

Is SZBZX84C6V2ET1G qualified for automotive applications?

Yes, SZBZX84C6V2ET1G is AEC-Q101 qualified and PPAP capable, with the "SZ" prefix indicating automotive-specific site controls, change management, and traceability. It meets stringent reliability requirements for under-hood and cabin electronics, distinguishing it from the commercial-grade BZX84C6V2ET1G variant.

What is the thermal resistance of SZBZX84C6V2ET1G on FR-5 board?

The thermal resistance from junction to ambient (R_JA) for SZBZX84C6V2ET1G is 500 °C/W when mounted on FR-5 board. This value assumes standard 1.0 × 0.75 × 0.62 inch board dimensions and drives the 2.0 mW/°C derating slope above 25 °C ambient, directly impacting maximum safe continuous power dissipation.

Does SZBZX84C6V2ET1G have a no-connect pin, and how should it be handled on PCB?

Yes, Pin 2 of SZBZX84C6V2ET1G is a no-connect terminal with no internal bond wire. It must remain unconnected on the PCB-no trace, pad, or solder joint-ensuring minimal parasitic coupling and avoiding unintended current paths. The SOT-23 mechanical drawing confirms this isolation in Style 8 configuration.

What is the ESD robustness rating for SZBZX84C6V2ET1G?

SZBZX84C6V2ET1G is rated Class 3 per Human Body Model (HBM) with >16 kV ESD withstand capability. This level of robustness eliminates the need for external ESD protection in most assembly and end-use scenarios, simplifying circuit design and improving reliability in handheld and automotive environments.

SZBZX84C6V2ET1G Specifications

Product attributes: Attribute value

Manufacturer:: onsemi

Series:: -

Package/Case:: TO-236-3, SC-59, SOT-23-3

Packaging:: Tape & Reel (TR)

Product Status:: Active

Voltage - Zener (Nom) (Vz):: 6.2 V

Tolerance:: ±6%

Power - Max:: 225 mW

Impedance (Max) (Zzt):: 10 Ohms

Current - Reverse Leakage @ Vr:: 3 µA @ 4 V

Voltage - Forward (Vf) (Max) @ If:: 900 mV @ 10 mA

Operating Temperature:: -65°C ~ 150°C (TJ)

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-23-3 (TO-236)

SZBZX84C6V2ET1G FAQ

1.How can I place an order for SZBZX84C6V2ET1G through Aetrix?

Please submit a Request for Quotation (RFQ) for SZBZX84C6V2ET1G 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 SZBZX84C6V2ET1G reliable?

The price and inventory of SZBZX84C6V2ET1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SZBZX84C6V2ET1G is usually 5 days.

3.What payment methods are accepted for SZBZX84C6V2ET1G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SZBZX84C6V2ET1G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SZBZX84C6V2ET1G?

SZBZX84C6V2ET1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SZBZX84C6V2ET1G 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 SZBZX84C6V2ET1G?

For technical support, including SZBZX84C6V2ET1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SZBZX84C6V2ET1G requirements.

6.How does Aetrix verify that SZBZX84C6V2ET1G is sourced from the original manufacturer or authorized distributors?

All SZBZX84C6V2ET1G 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 SZBZX84C6V2ET1G meets industry standards.

7.What is the process for return or replacement of SZBZX84C6V2ET1G?

All SZBZX84C6V2ET1G units undergo pre-shipment inspection (PSI). If there is an issue with SZBZX84C6V2ET1G, 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 SZBZX84C6V2ET1G part is unused and in its original packaging.

Return procedure for SZBZX84C6V2ET1G:

1.Submit a request within 90 days.

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

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