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

Diodes Incorporated BZT52C2V0T-7

Name: BZT52C2V0T-7
Brand: Diodes Incorporated
SKU: BZT52C2V0T-7
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BZT52C2V0T-7

Manufacturer:: Diodes Incorporated

Category:: Single Zener Diodes

Package:: SC-79, SOD-523

Datasheet:: BZT52C2V0T-7.pdf

Description:: DIODE ZENER 2V 300MW SOD523

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Product details

Overview

BZT52C2V0T from Diodes Incorporated is a surface-mount Zener diode with nominal 2.0 V zener voltage, 300 mW power dissipation, and SOD523 package. It provides precise low-voltage regulation in space-constrained power management circuits, such as voltage reference for ADC biasing or overvoltage clamping in USB interface protection.

For engineers reviewing the BZT52C2V0T datasheet, BZT52C2V0T pinout, BZT52C2V0T application, or BZT52C2V0T equivalent, key selection criteria include zener voltage tolerance (±4.5%), low dynamic impedance (100 Ω at 5 mA), thermal resistance (417 °C/W), and automotive-grade qualification readiness via Q-suffix variants.

Technical Context

This Zener diode operates in reverse breakdown to maintain stable voltage across its terminals under varying current loads. Its 2.0 V nominal zener voltage is specified at 5 mA test current, with temperature coefficient near 0 mV/°C - indicating minimal drift over temperature for low-voltage reference use.

The device uses a planar silicon junction structure in a molded plastic SOD523 package with cathode band marking. It meets JEDEC reliability standards and supports lead-free, halogen-free, and antimony-free "Green" compliance per RoHS 3 (2015/863/EU) and IATF 16949 manufacturing requirements.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage (V_Z)	2.0 V nominal, 1.91–2.09 V range at 5 mA - ensures tight regulation for 2.0 V rail sensing or reference generation.
Power Dissipation (P_D)	300 mW at 25°C ambient - supports continuous operation in compact PCB layouts without forced cooling.
Zener Impedance (Z_ZT)	100 Ω max at 1 kHz, 5 mA - enables stable voltage under moderate load transients in feedback networks.
Reverse Current (I_R)	150 µA max at 1.0 V reverse - confirms low leakage for battery-powered standby circuits.
Thermal Resistance (R_θJA)	417 °C/W - defines junction-to-ambient rise per watt; requires minimal copper area for thermal management.
Operating Temperature	−55°C to +150°C - suitable for industrial and under-hood automotive environments.

Pinout & Package

Package: SOD523 - ultra-small, low-profile surface-mount package (1.25 mm × 0.85 mm × 0.65 mm), molded green compound, UL 94V-0 rated, moisture sensitivity level 1.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward conduction terminal / Zener cathode reference ground	Connected to lower-potential node; forms reference return path in shunt regulator topology.
Cathode	Zener breakdown terminal / voltage regulation output	Marked with band; connected to regulated node; sinks current to maintain 2.0 V across load.

Key Features

Feature	Design Value
Low-profile SOD523 package	Enables placement in high-density layouts where height clearance < 0.65 mm is required, e.g., thin mobile PCBs.
±4.5% zener voltage tolerance	Supports accurate 2.0 V reference without external trimming in cost-sensitive consumer power monitors.
Lead-free, halogen-free, antimony-free	Fulfills strict environmental compliance (RoHS 3, JEDEC J-STD-020 Level 1) for global OEM shipments.
JEDEC-qualified high-reliability construction	Validated for long-term stability in industrial control modules operating continuously at 125°C ambient.

Applications

USB Interface Protection

ADC Reference Biasing

Use Scenario: Clamping transient voltages on USB D+/D− lines during ESD events or hot-plug insertion.

IC Role / Device Role / Timing Role: Shunt clamping diode providing low-impedance path to ground when line voltage exceeds 2.0 V.

Use Value: Limits peak voltage to safe levels below USB PHY IC absolute maximum rating (typically 3.6 V), preventing latch-up or damage.

Use Scenario: Generating stable 2.0 V reference for 12-bit SAR ADC input scaling in sensor signal conditioning.

IC Role / Device Role / Timing Role: Precision shunt voltage reference replacing higher-cost bandgap ICs in low-power analog front-ends.

Use Value: Delivers < ±5 mV drift over −40°C to +85°C, enabling sub-1 LSB error in 2.5 V full-scale conversions.

Microcontroller Reset Supervision

Li-ion Battery Cell Monitoring

Use Scenario: Detecting brown-out conditions on 3.3 V MCU supply rails using resistor divider + Zener threshold.

IC Role / Device Role / Timing Role: Voltage threshold detector element in discrete reset circuit with RC delay.

Use Value: Enables reliable 2.0 V trip point with < 10 µA quiescent current, extending battery life in portable MCU systems.

Use Scenario: Monitoring individual cell voltage in 2S Li-ion packs where 2.0 V indicates deep discharge warning.

IC Role / Device Role / Timing Role: Low-current voltage comparator reference in discrete cell-balancing or protection IC auxiliary circuitry.

Use Value: Provides repeatable 2.0 V trigger with < 0.1 V hysteresis when paired with comparator, improving state-of-charge accuracy.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
MMBZ5221BS-7-F	Same 2.0 V zener voltage, but SOT-323 package (larger footprint, 350 mW P_D), higher Z_ZT (150 Ω)	Less suitable for ultra-dense layouts; better thermal margin in high-ambient environments	Select when board space allows larger package and higher power margin is prioritized over size.
BZX384-B2V0,115	SOD-323 package, same 2.0 V, tighter 2% tolerance, but lower P_D (250 mW), higher R_θJA (500 °C/W)	Higher precision needed for metrology-grade references; limited to lower-current applications	Select when ±2% voltage accuracy is mandatory and power dissipation remains below 150 mW.

Compared with MMBZ5221BS-7-F and BZX384-B2V0,115, BZT52C2V0T offers optimal balance of miniaturization (SOD523), 300 mW capability, and industry-standard 5% tolerance - making it preferred for high-volume consumer electronics where board area and cost are critical.

Availability

BZT52C2V0T is available at Aetrix Electronics and suitable for USB interface protection, ADC reference biasing, and microcontroller reset supervision requiring stable component supply across production ramps and long-life designs.

Supply support for BZT52C2V0T 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

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design, manufacturing, and distribution operations across Asia, Europe, and the Americas.

The BZT52 series belongs to Diodes' broad portfolio of surface-mount Zener diodes engineered for precision voltage regulation and transient suppression in space-constrained, high-reliability applications across consumer, industrial, and automotive markets.

FAQ

What is the maximum reverse current at 1.0 V for BZT52C2V0T?

The maximum reverse current (I_R) is 150 µA at V_R = 1.0 V and T_A = 25°C, as specified in the Electrical Characteristics table. This value confirms suitability for low-leakage applications such as battery-backed monitoring circuits where standby current must remain below 200 µA.

Is BZT52C2V0T qualified for automotive use?

BZT52C2V0T itself is not AEC-Q200 qualified, but Diodes offers automotive-grade equivalents with Q-suffix (e.g., BZT52C2V0TQ-7) manufactured in IATF 16949-certified facilities and qualified to AEC-Q200. These variants undergo additional stress testing and change control for automotive applications.

What is the thermal resistance from junction to ambient (R_θJA) and how is it measured?

R_θJA is 417 °C/W, measured with the device mounted on an FR-4 PCB with single-sided 2 oz. copper and pad area of 1.92 mm². This value assumes natural convection and defines the temperature rise per watt dissipated - critical for derating calculations in enclosed enclosures or elevated ambient temperatures.

Does BZT52C2V0T have a defined temperature coefficient, and what does it imply for circuit design?

Yes - the temperature coefficient is specified as −3.5 to 0 mV/°C at I_ZT = 5 mA. Near-zero TC means minimal voltage drift over temperature, making it ideal for stable low-voltage references where compensation circuitry would otherwise be needed, especially in −25°C to +75°C operating ranges.

BZT52C2V0T-7 Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: -

Package/Case:: SC-79, SOD-523

Packaging:: Tape & Reel (TR)

Product Status:: Active

Voltage - Zener (Nom) (Vz):: 2 V

Tolerance:: ±5%

Power - Max:: 300 mW

Impedance (Max) (Zzt):: 100 Ohms

Current - Reverse Leakage @ Vr:: 150 µA @ 1 V

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

Operating Temperature:: -65°C ~ 150°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOD-523

BZT52C2V0T-7 FAQ

1.How can I place an order for BZT52C2V0T-7 through Aetrix?

Please submit a Request for Quotation (RFQ) for BZT52C2V0T-7 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 BZT52C2V0T-7 reliable?

The price and inventory of BZT52C2V0T-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT52C2V0T-7 is usually 5 days.

3.What payment methods are accepted for BZT52C2V0T-7?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52C2V0T-7 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BZT52C2V0T-7?

BZT52C2V0T-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BZT52C2V0T-7 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 BZT52C2V0T-7?

For technical support, including BZT52C2V0T-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52C2V0T-7 requirements.

6.How does Aetrix verify that BZT52C2V0T-7 is sourced from the original manufacturer or authorized distributors?

All BZT52C2V0T-7 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 BZT52C2V0T-7 meets industry standards.

7.What is the process for return or replacement of BZT52C2V0T-7?

All BZT52C2V0T-7 units undergo pre-shipment inspection (PSI). If there is an issue with BZT52C2V0T-7, 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 BZT52C2V0T-7 part is unused and in its original packaging.

Return procedure for BZT52C2V0T-7:

1.Submit a request within 90 days.

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

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