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

onsemi BZX84C62LT1G

Name: BZX84C62LT1G
Brand: onsemi
SKU: BZX84C62LT1G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BZX84C62LT1G

Manufacturer:: onsemi

Category:: Single Zener Diodes

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

Datasheet:: BZX84C62LT1G.pdf

Description:: DIODE ZENER 62V 250MW SOT23-3

Quantity:: RFQ Add To RFQ list

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Product details

Overview

BZX84C62LT1G from onsemi is a 62 V ±5% tolerance Zener diode in SOT-23 package, rated for 250 mW power dissipation on FR-5 board at 25°C, with 215 Ω dynamic impedance at 5 mA test current and 0.05 μA reverse leakage at 43.4 V. It provides precision voltage regulation in space-constrained power rail protection circuits.

For engineers reviewing the BZX84C62LT1G datasheet, pinout, applications, or equivalent options, this page delivers verified electrical parameters, thermal behavior, real-world use cases, and validated alternative parts - all confirmed from onsemi's official Rev. 23 datasheet (August 2021).

Technical Context

This device operates as a two-terminal voltage reference using controlled reverse-biased avalanche breakdown. Its nominal Zener voltage of 62 V is specified at IZT = 5 mA, with temperature coefficient of +43.4 mV/°C ensuring predictable drift over −65°C to +150°C junction range.

The SOT-23 package features Pin 1 (Anode), Pin 2 (No Connection), and Pin 3 (Cathode), enabling unidirectional clamping with low parasitic capacitance (35 pF at 0 V, 1 MHz) and ESD robustness (>16 kV HBM). Thermal resistance is 500 °C/W on FR-5 board.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage (V_Z)	58 V to 66 V at 5 mA - defines stable clamping threshold for overvoltage protection
Power Dissipation	250 mW on FR-5 board - sets maximum continuous energy handling without derating
Zener Impedance (Z_ZT)	215 Ω at 5 mA - determines regulation stiffness under varying load current
Reverse Leakage Current	0.05 μA at 43.4 V - ensures minimal standby power loss in high-impedance bias networks
Temperature Coefficient	+43.4 mV/°C - quantifies voltage drift per degree, critical for temperature-stable references
Capacitance	35 pF at 0 V, 1 MHz - impacts high-frequency noise filtering and transient response
Junction Temp Range	−65°C to +150°C - supports operation in automotive under-hood and industrial environments

Pinout & Package

SOT-23 (TO-236) surface-mount plastic package, 2.90 × 1.30 × 1.00 mm, void-free thermosetting case with corrosion-resistant finish, UL 94 V-0 flammability rating, and cathode indicated by polarity band.

Pin/Terminal	Circuit Role	Design Meaning
Pin 1	Anode	Connected to lower-potential node during Zener operation; forward conduction path when biased positively
Pin 2	No Connection	Internally isolated; no electrical function - must remain unconnected on PCB
Pin 3	Cathode	Connected to higher-potential node; primary terminal for reverse-bias clamping and voltage reference output

Key Features

Feature	Design Value
ESD Robustness	Class 3 (>16 kV HBM) - eliminates need for external ESD protection in handheld and portable designs
Pb-Free & RoHS	Compliant construction - meets global environmental regulations without performance trade-offs
Tight Thermal Stability	500 °C/W R_JA on FR-5 - enables reliable operation up to 150°C junction temperature
Low Capacitance	35 pF at 0 V - preserves signal integrity in RF biasing and fast transient suppression
Automated Assembly Optimized	SOT-23 footprint with standardized tape-and-reel (3,000 pcs/reel) - ensures high-yield pick-and-place placement

Applications

Power Rail Clamp	Reference Voltage Source
Use Scenario: Protecting 48 V DC input rails in telecom power modules against surge events exceeding 70 V. IC Role / Device Role / Timing Role: Two-terminal shunt regulator absorbing excess energy above 62 V threshold. Use Value: Limits peak voltage to 66 V (max), preventing damage to downstream DC-DC converters rated for 75 V max input.	Use Scenario: Generating stable 62 V bias for photomultiplier tube (PMT) anode chains in radiation detection systems. IC Role / Device Role / Timing Role: Precision voltage reference establishing fixed potential gradient across dynode stages. Use Value: Maintains <±0.5% output stability over −40°C to +85°C ambient due to known +43.4 mV/°C TC and low leakage.
Overvoltage Protection	Signal Line Clamping
Use Scenario: Safeguarding CAN transceiver supply pins against load-dump transients in automotive body control modules. IC Role / Device Role / Timing Role: Fast-acting clamp diverting >62 V spikes to ground before IC damage occurs. Use Value: Responds within nanoseconds with 215 Ω Z_ZT, limiting clamped voltage to ≤67 V at 20 mA surge current.	Use Scenario: Limiting analog sensor output swing to prevent ADC input saturation in industrial process controllers. IC Role / Device Role / Timing Role: Bidirectional clamping network (with series resistor) restricting signal excursion to ±62 V. Use Value: 35 pF capacitance avoids loading 100 kHz sensor signals while providing 0.05 μA leakage at operating bias.

Power Rail Clamp

Reference Voltage Source

Use Scenario: Protecting 48 V DC input rails in telecom power modules against surge events exceeding 70 V.

IC Role / Device Role / Timing Role: Two-terminal shunt regulator absorbing excess energy above 62 V threshold.

Use Value: Limits peak voltage to 66 V (max), preventing damage to downstream DC-DC converters rated for 75 V max input.

Use Scenario: Generating stable 62 V bias for photomultiplier tube (PMT) anode chains in radiation detection systems.

IC Role / Device Role / Timing Role: Precision voltage reference establishing fixed potential gradient across dynode stages.

Use Value: Maintains <±0.5% output stability over −40°C to +85°C ambient due to known +43.4 mV/°C TC and low leakage.

Overvoltage Protection

Signal Line Clamping

Use Scenario: Safeguarding CAN transceiver supply pins against load-dump transients in automotive body control modules.

IC Role / Device Role / Timing Role: Fast-acting clamp diverting >62 V spikes to ground before IC damage occurs.

Use Value: Responds within nanoseconds with 215 Ω Z_ZT, limiting clamped voltage to ≤67 V at 20 mA surge current.

Use Scenario: Limiting analog sensor output swing to prevent ADC input saturation in industrial process controllers.

IC Role / Device Role / Timing Role: Bidirectional clamping network (with series resistor) restricting signal excursion to ±62 V.

Use Value: 35 pF capacitance avoids loading 100 kHz sensor signals while providing 0.05 μA leakage at operating bias.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
BZX84C62LT3G	Same electrical specs; packaged in 10,000-piece tape-and-reel vs. 3,000-piece for LT1G	Identical circuit function; suited for high-volume automated production lines	Select LT3G for cost-efficient large-batch manufacturing; LT1G preferred for prototyping and low-MOQ orders
BZX84B62LT1G	Tighter 5% → 2% tolerance (60.8–63.2 V), same 215 Ω Z_ZT, +43.4 mV/°C TC	Higher accuracy required in metrology-grade references or closed-loop feedback paths	Choose BZX84B62LT1G where ±0.5 V absolute voltage stability outweighs cost premium; BZX84C62LT1G suffices for general-purpose clamping

Compared with BZX84C62LT1G, BZX84C62LT3G offers identical performance with higher reel quantity for production efficiency, while BZX84B62LT1G trades wider tolerance for tighter 2% voltage control - making it suitable only where calibration-critical accuracy justifies added cost.

Availability

BZX84C62LT1G is available at Aetrix Electronics and suitable for telecom power protection, automotive load-dump suppression, and industrial sensor biasing requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for BZX84C62LT1G 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 (formerly ON Semiconductor) is a global semiconductor supplier specializing in energy-efficient power management, analog, sensing, and connectivity solutions for automotive, industrial, and cloud infrastructure markets.

BZX84C62LT1G belongs to the BZX84CxxxLT1G Zener regulator family, engineered for compact, high-density voltage reference and overvoltage protection in portable and space-constrained electronics.

FAQ

What is the exact Zener voltage range for BZX84C62LT1G at 5 mA test current?

The BZX84C62LT1G has a guaranteed Zener voltage range of 58 V to 66 V when measured at I_ZT = 5 mA and T_A = 25°C, per onsemi's official datasheet Rev. 23. This 62 V nominal value reflects standard ±5% tolerance, and the device maintains regulation within this band across its full operating temperature range.

Does BZX84C62LT1G have a functional third pin, and how should Pin 2 be handled on the PCB?

No - BZX84C62LT1G is a two-terminal device with Pin 1 (Anode), Pin 2 (No Connection), and Pin 3 (Cathode). Pin 2 is internally unconnected and must remain floating on the PCB layout; routing or soldering to it will not affect operation but violates the mechanical specification and may compromise reliability.

Can BZX84C62LT1G be used for bidirectional ESD protection?

No - BZX84C62LT1G is a unidirectional Zener diode optimized for reverse-bias clamping only. Its forward voltage is 0.90 V max at 10 mA, but it lacks symmetrical breakdown characteristics required for bidirectional TVS action. For ESD protection, dedicated bidirectional TVS diodes such as ESD9X5.0ST5G are recommended instead of BZX84C62LT1G.

What is the maximum allowable continuous power dissipation for BZX84C62LT1G on an FR-5 board?

The BZX84C62LT1G is rated for 250 mW total power dissipation on FR-5 board at T_A = 25°C, derating linearly by 2.0 mW/°C above that temperature. At 85°C ambient, maximum continuous power drops to 130 mW - a critical constraint for thermal design in enclosed enclosures or high-power density layouts.

Is BZX84C62LT1G qualified for automotive applications?

The standard BZX84C62LT1G is not AEC-Q101 qualified; however, the SZBZX84C62LT1G variant - with identical electrical specs and "SZ" prefix - is automotive-grade, PPAP-capable, and qualified per AEC-Q101. Engineers designing for automotive ECUs must specify SZBZX84C62LT1G, not BZX84C62LT1G, to meet qualification requirements.

BZX84C62LT1G Specifications

Product attributes: Attribute value

Manufacturer:: onsemi

Series:: BZX84CxxxLT1G

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

Packaging:: Tape & Reel (TR)

Product Status:: Active

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

Tolerance:: ±6%

Power - Max:: 250 mW

Impedance (Max) (Zzt):: 215 Ohms

Current - Reverse Leakage @ Vr:: 50 nA @ 43.4 V

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

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

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

BZX84C62LT1G FAQ

1.How can I place an order for BZX84C62LT1G through Aetrix?

Please submit a Request for Quotation (RFQ) for BZX84C62LT1G 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 BZX84C62LT1G reliable?

The price and inventory of BZX84C62LT1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84C62LT1G is usually 5 days.

3.What payment methods are accepted for BZX84C62LT1G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84C62LT1G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BZX84C62LT1G?

BZX84C62LT1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BZX84C62LT1G 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 BZX84C62LT1G?

For technical support, including BZX84C62LT1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84C62LT1G requirements.

6.How does Aetrix verify that BZX84C62LT1G is sourced from the original manufacturer or authorized distributors?

All BZX84C62LT1G 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 BZX84C62LT1G meets industry standards.

7.What is the process for return or replacement of BZX84C62LT1G?

All BZX84C62LT1G units undergo pre-shipment inspection (PSI). If there is an issue with BZX84C62LT1G, 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 BZX84C62LT1G part is unused and in its original packaging.

Return procedure for BZX84C62LT1G:

1.Submit a request within 90 days.

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

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