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

Nexperia USA Inc. BZV90-C33,115

Name: BZV90-C33,115
Brand: Nexperia USA Inc.
SKU: BZV90-C33,115
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BZV90-C33,115

Manufacturer:: Nexperia USA Inc.

Category:: Single Zener Diodes

Package:: TO-261-4, TO-261AA

Datasheet:: BZV90-C33,115.pdf

Description:: DIODE ZENER 33V 1.5W SOT223

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Inventory:4,171

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Product details

Overview

BZV90-C33,115 from Nexperia is a medium-power Zener voltage regulator diode in SOT223 package, designed for precision DC voltage reference and regulation in power supply feedback paths. It delivers a nominal Zener voltage of 33 V at 2 mA test current, with ±5% tolerance, 45 Ω typical differential resistance, and −0.9 mV/K temperature coefficient - enabling stable operation in industrial power adapters and automotive sensor biasing circuits.

For engineers reviewing the BZV90-C33,115 datasheet, BZV90-C33,115 pinout, BZV90-C33,115 application, or BZV90-C33,115 equivalent, key selection criteria include Zener voltage accuracy at 2 mA, thermal resistance (83.3 K/W), non-repetitive peak reverse power (40 W), and SOT223 thermal pad layout compatibility with PCB copper area ≥2 cm².

Technical Context

This Zener diode operates in reverse breakdown mode with tightly controlled V_Z = 31.0–35.0 V range at I_Ztest = 2 mA, exhibiting low dynamic impedance (rdif ≤ 80 Ω) and predictable negative temperature coefficient (−0.9 mV/K). Its construction uses planar epitaxial technology to ensure stable long-term voltage regulation under continuous DC stress.

The device supports transient surge handling up to 40 W for 100 μs pulses (IZSM = 23.1 A), with junction temperature limited to 150 °C and storage range spanning −65 to +150 °C. Reverse leakage remains ≤0.05 μA at VR = 25.2 V, supporting low-power standby regulation.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage (V_Z)	31.0–35.0 V at I_Z = 2 mA - defines regulated output voltage window for feedback loop design
Differential Resistance (r_dif)	≤80 Ω max at I_Z = 2 mA - determines load regulation error under varying current
Temperature Coefficient (S_Z)	−0.9 mV/K at I_Z = 2 mA - enables predictable drift compensation in wide-temperature environments
Total Power Dissipation (P_tot)	1500 mW at T_amb = 25 °C on 2 cm² FR4 copper - sets maximum continuous DC power handling
Non-repetitive Peak Power (P_ZSM)	40 W for 100 μs square wave - supports surge immunity in input-stage clamping
Junction-to-Ambient Thermal Resistance (R_{th j-a})	83.3 K/W - defines required PCB copper area for thermal management
Reverse Leakage Current (I_R)	≤0.05 μA at V_R = 25.2 V - ensures minimal quiescent current in high-impedance bias networks

Pinout & Package

Package: SOT223 - surface-mount plastic package with exposed collector pad for enhanced thermal conduction; requires minimum 2 cm² double-sided copper area on FR4 PCB per datasheet note.

Pin/Terminal	Circuit Role	Design Meaning
1	Anode	DC current entry point during forward conduction; tied to ground or low-side reference in shunt regulator topology
2, 4	Cathode	Main Zener breakdown terminal; connected to regulated node and feedback path; pins 2 and 4 are internally bonded for current sharing and thermal relief
3	Anode	Secondary anode connection; electrically identical to pin 1 - used for mechanical stability and additional solder joint reliability

Key Features

Feature	Design Value
±5% Zener voltage tolerance (E24 series)	Enables direct replacement across 37 standard values without custom calibration
1500 mW continuous power rating	Supports regulation in mid-power SMPS feedback loops without external heatsinking
Low 45 pF diode capacitance at 0 V	Minimizes phase shift in high-frequency feedback networks (e.g., >100 kHz error amplifiers)
−0.9 mV/K temperature coefficient	Provides predictable, linear V_Z drift over −65 to +150 °C operating range
SOT223 thermal pad layout	Allows 83.3 K/W R_{th j-a} with standard double-sided FR4 - no special thermal vias required

Applications

Industrial Power Supplies

Automotive Sensor Biasing

Use Scenario: Regulation of 33 V auxiliary rail in DIN-rail mounted AC/DC converters.

IC Role / Device Role / Timing Role: Shunt voltage reference in TL431-based feedback network.

Use Value: Maintains ±1.5% output accuracy over 0–70 °C ambient with <10 ppm/°C drift contribution.

Use Scenario: Providing stable 33 V bias to pressure transducer bridge excitation in engine control units.

IC Role / Device Role / Timing Role: Precision Zener reference replacing higher-cost bandgap ICs in analog front-end.

Use Value: Delivers <0.5% total error over lifetime, meeting AEC-Q200 Grade 1 thermal cycling requirements.

LED Driver Feedback

Programmable Logic Controller (PLC) I/O Protection

Use Scenario: Setting constant-current threshold in buck LED driver feedback via optocoupler-coupled loop.

IC Role / Device Role / Timing Role: Voltage clamp defining upper limit of current-sense amplifier output swing.

Use Value: Limits overshoot during dimming transients with 40 W surge capability absorbing MOSFET switching spikes.

Use Scenario: Overvoltage protection on 24 V digital input channels in modular PLC backplanes.

IC Role / Device Role / Timing Role: Standby-mode Zener clamp preventing latch-up during ESD events.

Use Value: Withstands 8 kV HBM ESD pulses while maintaining <0.05 μA leakage at 25.2 V - preserving input hysteresis margins.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STMicroelectronics BZX84-C33	Same 33 V nominal Zener voltage but in SOT23 package; lower P_tot = 350 mW; rdif = 90 Ω	Limited to low-power signal-level regulation; unsuitable for >100 mA shunt loads	Select when board space is constrained and thermal budget allows derating below 150 mW
Vishay BZX79-C33	Through-hole DO-35 package; P_tot = 1300 mW; rdif = 80 Ω; T_j = 200 °C	Requires wave soldering; better high-temp reliability but no SMT thermal pad	Select for legacy through-hole designs or extended junction temperature requirements beyond 150 °C

Compared with BZX84-C33 and BZX79-C33, the BZV90-C33,115 uniquely balances SMT manufacturability, 1500 mW power handling, and SOT223 thermal pad integration - making it optimal for new industrial power supply designs requiring both density and thermal robustness.

Availability

BZV90-C33,115 is available at Aetrix Electronics and suitable for industrial power supplies, automotive sensor biasing, and programmable logic controller (PLC) I/O protection requiring stable component supply across multi-year production cycles.

Supply support for BZV90-C33,115 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

Nexperia is a global leader in discrete semiconductors, formed in 2017 from the former NXP Standard Products division, specializing in high-volume, high-reliability components for automotive, industrial, and computing markets.

The BZV90 series belongs to Nexperia's voltage regulator diode product line, engineered for stable DC voltage reference in cost-sensitive, thermally demanding power conversion and protection applications - emphasizing tight tolerance, repeatable surge performance, and SMT thermal efficiency.

FAQ

What is the recommended PCB layout for thermal management of BZV90-C33,115?

Per datasheet Note 1, mount the device on an FR4 double-sided copper-clad PCB with ≥2 cm² total copper area connected to pins 2 and 4 (cathode). Use thermal reliefs only on pin 1 and 3 (anode); avoid solder mask over the exposed pad. No thermal vias are required to achieve the specified 83.3 K/W R_{th j-a}.

Does BZV90-C33,115 support bidirectional transient suppression?

No - it is a unidirectional Zener diode optimized for reverse-bias regulation. Forward conduction is limited to 400 mA continuous, and it lacks symmetric clamping characteristics. For bidirectional TVS protection, use dedicated devices such as PESD5V0S1BA or similar.

Can BZV90-C33,115 replace BZX85-C33 in existing designs?

Yes, with verification of thermal margin: BZX85-C33 is in DO-41 package (P_tot = 1.3 W), while BZV90-C33,115 offers identical voltage specs but in SOT223 with 1.5 W rating. Ensure PCB copper area meets 2 cm² requirement and check cathode/anode pin mapping - SOT223 pinout differs from DO-41 lead orientation.

What is the maximum allowable reverse voltage before breakdown onset?

Breakdown begins at V_Z(min) = 31.0 V. At VR = 25.2 V (80% of nominal), reverse leakage is guaranteed ≤0.05 μA. Operation between 25.2 V and 31.0 V is safe but non-regulating; sustained voltage above 35.0 V risks exceeding absolute maximum ratings and irreversible damage.

BZV90-C33,115 Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: -

Package/Case:: TO-261-4, TO-261AA

Packaging:: Tape & Reel (TR)

Product Status:: Active

Voltage - Zener (Nom) (Vz):: 33 V

Tolerance:: ±5%

Power - Max:: 1.5 W

Impedance (Max) (Zzt):: 80 Ohms

Current - Reverse Leakage @ Vr:: 50 nA @ 23.1 V

Voltage - Forward (Vf) (Max) @ If:: 1 V @ 50 mA

Operating Temperature:: -65°C ~ 150°C

Grade:: Automotive

Qualification:: AEC-Q100

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-223

BZV90-C33,115 FAQ

1.How can I place an order for BZV90-C33,115 through Aetrix?

Please submit a Request for Quotation (RFQ) for BZV90-C33,115 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 BZV90-C33,115 reliable?

The price and inventory of BZV90-C33,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZV90-C33,115 is usually 5 days.

3.What payment methods are accepted for BZV90-C33,115?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZV90-C33,115 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BZV90-C33,115?

BZV90-C33,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BZV90-C33,115 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 BZV90-C33,115?

For technical support, including BZV90-C33,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZV90-C33,115 requirements.

6.How does Aetrix verify that BZV90-C33,115 is sourced from the original manufacturer or authorized distributors?

All BZV90-C33,115 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 BZV90-C33,115 meets industry standards.

7.What is the process for return or replacement of BZV90-C33,115?

All BZV90-C33,115 units undergo pre-shipment inspection (PSI). If there is an issue with BZV90-C33,115, 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 BZV90-C33,115 part is unused and in its original packaging.

Return procedure for BZV90-C33,115:

1.Submit a request within 90 days.

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

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