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BZT52C Surface-Mount Zener Diode Variants

Diodes Incorporated BZT52C variants are small-signal Zener diodes spanning many nominal voltages and compact packages such as SOD-123, SOD-323, SOD-523, and 2DFN.

BZT52C Datasheet

Voltage range

Supports common clamp and reference voltages from one base family.

Package density

Allows tradeoffs between board area, power handling, and assembly preference.

Use case

Simple solution for low-energy clamp and bias regulation needs.

Compact Zener regulation and clamp options across voltage values

Compare BZT52C variants by Zener voltage, power rating, package, tolerance, qualification, and reel format.

The BZT52C base number covers Diodes Incorporated surface-mount Zener diodes used for voltage reference, rail clamp, transient limiting, bias regulation, and simple overvoltage protection functions. Variants span common Zener voltages from low single-digit values through higher-voltage clamps, with different package and power combinations including SOD-123, SOD-323, SOD-523, and 2DFN style parts.

BZT52C parts are often placed on signal lines, bias nodes, local supply rails, and protection networks where a compact discrete clamp is sufficient. The same nominal voltage can appear in multiple packages or ratings, so selection must account for Zener voltage tolerance, test current, dynamic impedance, leakage, power dissipation, thermal environment, surge expectations, and whether automotive AEC-Q101 qualification is required.

Key Features

  • Broad Zener voltage coverage for clamp and reference networks
  • Compact SMD packages for dense PCB protection circuits
  • Multiple power and package choices under similar voltage values
  • Useful for bias rails, signal clamps, and simple overvoltage protection
  • Automotive-qualified variants appear in selected ordering codes

Target Applications

  • Signal-line voltage clamping
  • Local rail protection and bias regulation
  • Consumer and industrial electronics
  • Automotive modules where qualified variants are selected
  • Compact discrete protection networks

Ordering Variants

Compare 191 BZT52C part numbers by package, electrical parameters, lifecycle, and availability. Use RFQ for stock and lead-time confirmation.

Part NumberDescriptionManufacturerLifecycleRoHSAvailabilityAction
BZT52C10-7-FDIODE ZENER 10V 500MW SOD123Diodes IncorporatedActiveCompliantIn Stock
BZT52C10LP-7DIODE ZENER 10V 250MW 2DFNDiodes IncorporatedActiveCompliantIn Stock
BZT52C10Q-7-FZENER DIODE SOD123 T&R 3KDiodes IncorporatedActiveCompliantIn Stock
BZT52C10S-7-FDIODE ZENER 10V 200MW SOD323Diodes IncorporatedActiveCompliantIn Stock
BZT52C10SQ-7-FZENER DIODE SOD323 T&R 3KDiodes IncorporatedActiveCompliantIn Stock
BZT52C10T-7DIODE ZENER 10V 300MW SOD523Diodes IncorporatedActiveCompliantIn Stock
BZT52C10TQ-7-FZENER DIODE SOD523 T&R 3KDiodes IncorporatedActiveCompliantIn Stock
BZT52C11-7-FDIODE ZENER 11V 500MW SOD123Diodes IncorporatedActiveCompliantIn Stock
BZT52C11LP-7DIODE ZENER 11V 250MW 2DFNDiodes IncorporatedActiveCompliantIn Stock
BZT52C11Q-7-FZener Diode Single 11V 5.45% 20Ohm 500mW Automotive AEC-Q101 2-Pin SOD-123 T/RDiodes IncorporatedActiveCompliantIn Stock
BZT52C11S-7-FDIODE ZENER 11V 200MW SOD323Diodes IncorporatedActiveCompliantIn Stock
BZT52C11T-7DIODE ZENER 11V 300MW SOD523Diodes IncorporatedActiveCompliantIn Stock
BZT52C12-13-FDIODE ZENER 12V 500MW SOD123Diodes IncorporatedActiveCompliantIn Stock
BZT52C12-7-FDIODE ZENER 12V 500MW SOD123Diodes IncorporatedActiveCompliantIn Stock
BZT52C12LP-7DIODE ZENER 12V 250MW 2DFNDiodes IncorporatedActiveCompliantIn Stock
BZT52C12Q-7-FZENER DIODE SOD123 T&R 3KDiodes IncorporatedActiveCompliantIn Stock
BZT52C12S-7-FDIODE ZENER 12V 200MW SOD323Diodes IncorporatedActiveCompliantIn Stock
BZT52C12SQ-7-FZENER DIODE SOD323 T&R 3KDiodes IncorporatedActiveCompliantIn Stock
BZT52C12T-7DIODE ZENER 12V 300MW SOD523Diodes IncorporatedActiveCompliantIn Stock
BZT52C12T1GDiscrete Semiconductors--Diodes--Zener--Zener Diode ArraysDiodes IncorporatedActiveCompliantIn Stock

Ordering Code Differences

How suffixes on BZT52C map to package, grade, and reel options.

[{"code":"BZT52Cxx","meaning":"The number after C identifies the nominal Zener voltage, such as 5V1, 12, 24, or 39."},{"code":"S, T, LP markers","meaning":"Often distinguish smaller packages or lower-profile package families. Verify package and power rating."},{"code":"Q marker","meaning":"Can indicate automotive-qualified variants in some ordering codes; confirm AEC status in the datasheet."},{"code":"-7, -13 suffixes","meaning":"Tape-and-reel or packing indicators used by the manufacturer and distributors."}]

How to Choose the Right BZT52C Zener Diodes

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Choose by operating point

Zener voltage is specified at a test current; verify the actual clamp voltage at your circuit current.

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Derate power carefully

Small packages can overheat quickly during sustained clamp events or high ambient temperature.

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Check leakage limits

Low-current analog and battery circuits may be sensitive to reverse leakage.

Technical Specifications

Core parameters for BZT52C product family

Component type
Surface-mount Zener diode
Voltage coverage
Multiple nominal Zener voltages across the BZT52C range
Common packages
SOD-123, SOD-323, SOD-523, 2DFN
Typical roles
Voltage clamp, reference, bias regulation, rail protection
Selection focus
Vz, tolerance, power, leakage, package, qualification

Source BZT52C with Octatronics

Request stock confirmation, lead time, date code, and pricing for all 191 ordering variants from Diodes Incorporated. Our team supports active, EOL, and hard-to-find component sourcing.

  • Original manufacturer parts with traceability options
  • BOM upload and multi-line RFQ support
  • Package, grade, and compliance verification

Frequently Asked Questions

Common technical questions about the BZT52C product family.

It identifies the nominal Zener voltage, such as 5.1 V or 12 V, under datasheet test conditions.
Only after checking package, power rating, tolerance, leakage, qualification, and reel format. The suffix can change more than packaging.
It is a small-signal Zener family. For high-energy surge events, compare TVS diode families and verify pulse power ratings.