About us Contact Us Submit BOM
RFQs(0)
English
Close Menu
View All

Please refer to the English Version as our Official Version.Return

Europe
France(Français) Germany(Deutsch) Italy(Italia) Russian(русский) Poland(polski) Czech(Čeština) Luxembourg(Lëtzebuergesch) Netherlands(Nederland) Iceland(íslenska) Hungarian(Magyarország) Spain(español) Portugal(Português) Turkey(Türk dili) Bulgaria(Български език) Ukraine(Україна) Greece(Ελλάδα) Israel(עִבְרִית) Sweden(Svenska) Finland(Svenska) Finland(Suomi) Romania(românesc) Moldova(românesc) Slovakia(Slovenská) Denmark(Dansk) Slovenia(Slovenija) Slovenia(Hrvatska) Croatia(Hrvatska) Serbia(Hrvatska) Montenegro(Hrvatska) Bosnia and Herzegovina(Hrvatska) Lithuania(lietuvių) Spain(Português) Switzerland(Deutsch) United Kingdom(English)
Asia/Pacific
Japan(日本語) Korea(한국의) Thailand(ภาษาไทย) Malaysia(Melayu) Singapore(Melayu) Vietnam(Tiếng Việt) Philippines(Pilipino)
Africa, India and Middle East
United Arab Emirates(العربية) Iran(فارسی) Tajikistan(فارسی) India(हिंदी) Madagascar(malaɡasʲ)
South America / Oceania
New Zealand(Maori) Brazil(Português) Angola(Português) Mozambique(Português)
North America
United States(English) Canada(English) Haiti(Ayiti) Mexico(español)
HomeProductsDiscrete Semiconductor ProductsDiodes - Zener - SinglePDZ2.4BZ
PDZ2.4BZ Image
PDZ2.4BZ Image - 1
Image may be representation.
See specifications for product details.
Share
 Favorite
EXPRESS OPTION
Payment method

PDZ2.4BZ - Nexperia USA Inc.

Manufacturer Part Number
PDZ2.4BZ
Manufacturer
Nexperia
Allelco Part Number
98D-PDZ2.4BZ
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
29,500 pcs available, New & Original
Parts Description
DIODE ZENER 2.63V 400MW SOD323
Package
SOD-323
Data sheet
PDZ2.4BZ.pdf

HTML Datasheet

PDZ3.3B145 Datasheet.pdf
RoHs Status
ROHS3 Compliant
Compare
Our certification
In stock: 29500
  • Unit Price: $0.043
  • Subtotal: $0.00

Want a better price?
Add to Cart and Submit RFQ now, we'll contact you immediately.

Quantity Unit Price Ext. Price
1+ $0.043 $0.04
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

PDZ2.4BZ Tech Specifications
Nexperia USA Inc. - PDZ2.4BZ technical specifications, attributes, parameters and parts with similar specifications to Nexperia USA Inc. - PDZ2.4BZ

Product Attribute Attribute Value
Manufacturer Nexperia
Voltage - Zener (Nom) (Vz) 2.63 V
Voltage - Forward (Vf) (Max) @ If 900 mV @ 10 mA
Tolerance ±2%
Supplier Device Package SOD-323
Series -
Power - Max 400 mW
Product Attribute Attribute Value
Package / Case SC-76, SOD-323
Package Tape & Reel (TR)
Operating Temperature 150°C (TJ)
Mounting Type Surface Mount
Impedance (Max) (Zzt) 1000 Ohms
Current - Reverse Leakage @ Vr 50 µA @ 1 V
Base Product Number PDZ2.4

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)
REACH Status REACH Unaffected
ECCN EAR99

Frequently Asked Questions(FAQ)

What is the typical Zener voltage and power rating for the PDZ2.4BZ, and how does this compare to standard 2.4 V Zener diodes commonly used in low-voltage regulation circuits?
The PDZ2.4BZ features a nominal Zener voltage of 2.63 V with a ±2% tolerance, providing precise voltage clamping in reverse-bias conditions. This differs from standard 2.4 V Zener diodes, which typically exhibit higher leakage currents and less tight voltage accuracy under varying temperatures. With a maximum power dissipation of 400 mW, the PDZ2.4BZ is suitable for applications requiring stable reference voltages below 3 V, such as precision analog front-ends or microcontroller supervisory circuits, where tighter voltage control improves system reliability.
How does the impedance characteristic of the PDZ2.4BZ impact its performance in dynamic load regulation scenarios compared to higher-impedance Zener alternatives?
The PDZ2.4BZ has a maximum Zener impedance (Zzt) of 1000 Ohms, which is relatively high for modern low-power Zeners. In transient load conditions, this higher impedance can result in slower response and greater output voltage ripple under rapid current changes. Compared to lower-impedance devices like the BZX84 series, the PDZ2.4BZ may exhibit degraded transient response in switching regulator feedback loops or precision voltage references. Therefore, it is better suited for low-frequency, steady-state regulation rather than high-speed switching applications.
Given its SOD-323 package and surface-mount design, what are the thermal limitations of the PDZ2.4BZ when used in compact PCBs without additional heat sinking?
Operating at up to 150°C junction temperature (TJ), the PDZ2.4BZ can handle elevated ambient conditions common in dense PCB layouts. However, due to the small SOD-323 footprint (typical thermal resistance around 300–400°C/W), sustained operation near 400 mW dissipation requires careful layout to avoid excessive temperature rise. In designs with limited copper area or airflow, derating to 200–300 mW is advisable to maintain long-term reliability and prevent thermal drift in Zener voltage.
Can the PDZ2.4BZ be safely used in reverse polarity protection circuits, and how does its forward voltage drop compare to Schottky diodes in similar roles?
While not designed for primary reverse polarity protection, the PDZ2.4BZ can serve as a secondary clamp in certain configurations due to its 900 mV forward voltage at 10 mA. This is significantly higher than Schottky diodes (typically 300–500 mV), leading to higher power loss and heat generation in high-current paths. For reverse polarity protection, dedicated Schottky or P-channel MOSFET solutions are preferred. The PDZ2.4BZ is better utilized in signal conditioning or voltage reference roles rather than power path protection.
What precautions should be taken when selecting the PDZ2.4BZ for use in battery-powered IoT sensor nodes operating between -40°C and +85°C?
The PDZ2.4BZ operates reliably across industrial temperature ranges and exhibits stable Zener characteristics with minimal drift over time and temperature. However, its 400 mW power rating must be derated in cold environments if current draw increases due to reduced battery efficiency. Additionally, ensure that the total circuit current through the diode remains well below the knee current threshold to maintain regulation accuracy. Pairing it with a series resistor to limit current helps preserve performance in low-voltage battery systems.
How does the leakage current specification of the PDZ2.4BZ affect its suitability in ultra-low-power measurement circuits compared to newer-generation Zener diodes with sub-1 µA leakage?
With a reverse leakage current of 50 µA at 1 V, the PDZ2.4BZ introduces noticeable off-state current in high-impedance sensor interfaces or battery-backed memory circuits. This can lead to measurable offset errors or accelerated drain on coin-cell batteries in portable devices. Modern alternatives with leakage below 1 µA offer superior performance in energy-constrained environments. While acceptable for many general-purpose applications, the PDZ2.4BZ may require circuit buffering or isolation techniques in precision ADC reference chains.
Is the PDZ2.4BZ compatible with automated pick-and-place assembly processes, and what packaging details are critical for reliable SMT handling?
Yes, the PDZ2.4BZ is delivered in Tape & Reel (TR) packaging, fully compatible with standard SMT assembly lines. As an SOD-323 device, it adheres to JEDEC MSL 1 classification, allowing unlimited floor life before reflow when stored properly. Proper alignment and solder paste volume are essential due to the small footprint; insufficient solder may cause tombstoning, while excess can create bridging. Thermal profiling during reflow must account for the low mass of the component to avoid thermal shock.
What are the key differences between the PDZ2.4BZ and the base product PDZ2.4 in terms of electrical characteristics and application suitability?
The PDZ2.4BZ specifically denotes a 2.63 V ±2% variant within the PDZ2.4 family, whereas the generic PDZ2.4 may encompass multiple voltage grades. The "BZ" suffix indicates tighter tolerancing and improved manufacturing consistency, making the PDZ2.4BZ more appropriate for precision voltage referencing. Unlike earlier PDZ2.4 versions, the BZ variant offers enhanced stability and compliance with ROHS3, reducing environmental risk in regulated markets. Designers should verify exact specifications when substituting between variants to avoid unintended voltage thresholds in sensitive analog circuits.
Can the PDZ2.4BZ be used in conjunction with linear regulators to improve transient response, and what trade-offs arise from its high Zener impedance?
When placed in parallel with a linear regulator’s feedback node, the PDZ2.4BZ can help clamp overshoots and protect against input spikes. However, its high Zener impedance limits its effectiveness during fast transients. The 1000 Ohm Zzt value means it cannot respond quickly enough to suppress nanosecond-scale voltage surges, leaving the system vulnerable. It is more effective against slower disturbances like inductive kickback. A faster TVS diode in parallel may be needed for comprehensive protection, while the PDZ2.4BZ serves primarily as a low-cost reference clamp.
What impact does the ±2% tolerance of the PDZ2.4BZ have on calibration-intensive systems such as medical instrumentation or precision data converters?
The tight ±2% tolerance ensures consistent Zener breakdown across production batches, which reduces calibration overhead in systems requiring stable reference voltages. For example, in 12-bit ADCs using internal references, a 2.63 V supply with ±2% accuracy allows predictable quantization levels without per-unit trimming. This contrasts with older Zeners with ±5% tolerance, which often required external calibration or trimming circuits. The PDZ2.4BZ thus supports higher yields in mass-produced precision instruments by minimizing post-assembly tuning needs.
How should the PDZ2.4BZ be biased in a typical shunt regulator configuration, and what resistor value would ensure safe operation within its 400 mW limit?
In a shunt configuration, the PDZ2.4BZ should be connected across the load with a series current-limiting resistor. Assuming a 3.3 V supply and a desired operating current of 50 mA to stay near rated power, the series resistor should be approximately (3.3 V – 2.63 V) / 0.05 A = 13.4 Ohms. To remain within 400 mW, the maximum current through the diode should not exceed sqrt(0.4 W / 2.63 V) ≈ 0.39 A, but practical designs limit current to 5–100 mA for stability. A 22 Ohm resistor would provide adequate margin while ensuring the PDZ2.4BZ operates within safe thermal and electrical limits.
Are there any known reliability concerns when using the PDZ2.4BZ in automotive-grade environments, despite its RoHS3 and MSL 1 certifications?
While the PDZ2.4BZ meets RoHS3 standards and is MSL 1 compliant, it is not qualified to automotive-grade AEC-Q101 specifications. Prolonged exposure to vibration, thermal cycling, or humidity beyond standard industrial conditions may accelerate degradation of the Zener junction. In non-automotive applications with moderate environmental stress, it performs reliably. However, for engine control units or lighting systems requiring full automotive validation, a qualified alternative should be selected. Always consult Nexperia’s latest qualification documentation for updated status.
How does the PDZ2.4BZ compare to the TL431 shunt regulator in terms of cost, precision, and dynamic response for 2.5 V to 2.7 V reference applications?
The PDZ2.4BZ offers a significantly lower cost and simpler implementation than the TL431, which requires three terminals and external resistors for voltage setting. However, the TL431 provides much better precision (±1%), lower temperature drift, and programmable output down to 2.5 V via feedback resistors. The PDZ2.4BZ excels in space-constrained, low-complexity designs where fixed 2.63 V reference suffices and component count must be minimized. For high-accuracy or adjustable references, the TL431 remains superior, but the PDZ2.4BZ delivers adequate performance at a fraction of the cost and board area.
What role does the PDZ2.4BZ play in ESD protection schemes for GPIO pins on microcontrollers, and how does it complement other protection components?
The PDZ2.4BZ can act as a secondary clamp for electrostatic discharge events when placed in parallel with a primary TVS diode. Its slow response prevents it from conducting during fast ESD transients, but it can absorb residual energy after the TVS has done most of the work. Due to its higher capacitance and lower surge capability compared to specialized ESD diodes, it should never replace a dedicated transient suppressor. Instead, it helps stabilize the reference voltage during minor overvoltages, protecting sensitive analog inputs or internal regulators feeding the MCU.
Why might the PDZ2.4BZ exhibit different Zener voltage behavior under pulsed versus continuous DC operation, and how should this influence circuit design?
Under pulsed operation, the PDZ2.4BZ benefits from thermal averaging, potentially allowing slightly higher peak power dissipation without exceeding junction limits. However, due to its moderate thermal mass, rapid duty cycles can still cause localized heating. Continuous operation demands strict adherence to the 400 mW limit. Designers must ensure that average power, including duty cycle effects, remains below this threshold. Pulse-width modulation or burst-mode loads should be analyzed using thermal models to confirm safe operation, especially in thermally constrained enclosures.
What considerations apply when integrating the PDZ2.4BZ into a multi-stage voltage regulation chain involving buck converters and post-regulators?
In multi-stage systems, the PDZ2.4BZ is best placed in the final stage for local noise filtering or reference stabilization. Its low dynamic impedance helps dampen high-frequency ripple from upstream switching regulators. However, its 1000 Ohm Zzt means it cannot compensate for large load transients originating from downstream loads. A bulk capacitor should precede the PDZ2.4BZ to handle major current swings, while the diode smooths fine-grained fluctuations. Placement close to ICs requiring clean references minimizes trace inductance and maximizes effectiveness in rejecting conducted noise.

Parts with Similar Specifications

The three parts on the right have similar specifications to Nexperia USA Inc. PDZ2.4BZ

Product Attribute PDZ2.4B-QZ PDZ2.4BGW115 PDZ2.4BGWJ PDZ2.7B-QZ
Part Number PDZ2.4B-QZ PDZ2.4BGW115 PDZ2.4BGWJ PDZ2.7B-QZ
Manufacturer Nexperia USA Inc. Nexperia USA Inc. Nexperia USA Inc. Nexperia USA Inc.
Voltage - Zener (Nom) (Vz) - - - -
Series - - - -
Tolerance - - - -
Base Product Number - DAC34H84 MAX500 ADS62P42
Current - Reverse Leakage @ Vr - - - -
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Mounting Type - Surface Mount Through Hole Surface Mount
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Voltage - Forward (Vf) (Max) @ If - - - -
Power - Max - - - -
Impedance (Max) (Zzt) - - - -

PDZ2.4BZ Datasheet PDF

Download PDZ2.4BZ pdf datasheets and Nexperia USA Inc. documentation for PDZ2.4BZ - Nexperia USA Inc..

PCN Packaging
All Dev Label Chgs 2/Aug/2020.pdf Mult Dev Pkg/Qual Chg 30/Nov/2021.pdf
HTML Datasheet
PDZ3.3B145 Datasheet.pdf

Customers Also Interested in

Recommended Products

Customer Reviews

Evaluation: 10 Articles

  • Emil***rperTech
    Jun 23, 2026

    Works exactly as described. I used it as a USB-to-SPI bridge in a small MCU development project and communication was stable from the first setup.

  • Liam***terTech
    Jun 15, 2026

    Used this CPLD in a logic control project. Programming was straightforward and signal timing matched the design requirements.

  • Nath***rooks
    Jun 11, 2026

    Installed this power component in a converter board. Output remained stable under different load conditions and thermal performance was better than expected.

  • Dani***alkerTech
    Jun 1, 2026

    Product works, but setup took more effort than expected. Once configured the MCU ran reliably, although documentation support felt older compared with newer platforms. Fine for maintenance projects.

  • Yuki***aka88
    May 26, 2026

    信号通信プロジェクトでこのRS-485トランシーバーを使用しました。設置は簡単で、長距離ケーブルでも通信は安定していました。消費電力も、以前使用していたものより低くなっています。

  • Stev***aker
    May 20, 2026

    Solid diode for power rectification. Works well in switching circuits.

  • Bran***Lewis
    May 11, 2026

    Compact FPGA with good performance. Suitable for basic signal processing tasks.

  • Oliv***arris
    May 7, 2026

    Reliable I/O expander. Works well in embedded control applications.

  • Jess***Jones
    Apr 17, 2026

    It offers good value for the price, and the specifications match the description. I’ve been using it for two days with no issues, and I’ll definitely buy it again if I need it in the future.

  • Mich***Smith
    Apr 17, 2026

    Shipping was on time, the component pins are neatly aligned, and I tested 10 of them with a multimeter—all readings were within the specified range. Highly recommended.

Write a Review

Your Email address will not be published.

Shipment

Delivery Time

In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

Delivery Cost

  1. Use your express account for shipment if you have one.
  2. Use our account for the shipment. Refer to the table below for the approximate charges.
(Different time frame / countries / package size has different price.)

Delivery Method

  1. Global Common Shipment by DHL / UPS / FedEx / TNT / EMS / SF we support.
  2. Others more shipping ways, please get in touch with your customer manager.

Common Countries Logistic Time Reference
Region Country Logistic Time(Day)
America United States 5
Brazil 7
Europe Germany 5
United Kingdom 4
Italy 5
Oceania Australia 6
New Zealand 5
Asia India 4
Japan 4
Middle East Israel 6
DHL & FedEx Shipment Charges Reference
Shipment charges(KG) Reference DHL(USD$)
0.00kg-1.00kg USD$30.00 - USD$60.00
1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.
  • QC (Quality Warranty)
  • Payment Support
  • Packaging
  • Certifications & Memberships

QC (Quality Warranty)

Allelco is committed to exceeding customer expectations through customer service excellence, order accuracy, and on-time delivery.
This is achieved through our commitment to the continual improvement of our processes, services, and products.


Strict quality inspection builds a solid foundation for electronic component quality.
  1. Visual inspection
  2. Performance testing and reliability verification
  3. Standardized full-process testing
  4. Precise control of every parameter
We eliminate defective components and ensure the stable operation of electronic devices through professional quality standards.
Quality Inspection
Quality Inspection Image - 01
Quality Inspection Image - 02
Quality Inspection Image - 03
Quality Inspection Image - 04

Payment Support

The payment method can be chosen from the methods shown below: Wire Transfer (T/T, Bank Transfer), Western Union, Credit card, PayPal.
  • HKBea
  • Paypal
  • MasterCard
  • Western-Union
  • VISA
Stable Delivery, Sincere Partnership — Your Faithful Supply Chain Partner
  • Efficient Supply Management
  • Cost-Saving Procurement
  • Fast Sourcing & Delivery
Contact us if you have any questions.

Packaging

Electrostatic Discharge Protection and Handling

All electrostatic-sensitive components are handled in accordance with electrostatic discharge control procedures. The products are hermetically sealed in anti-static safe packaging to prevent electrostatic damage. Appropriate labeling is also applied for identification and traceability. This ensures product integrity during storage, handling and transportation.


ESD

Certifications & Memberships

Third-party certified, strict quality control. Our certification
  • ISO 9001: 2015
  • ISO 13485: 2016
  • ISO 14001: 2015
  • ISO 28000: 2007
  • ISO 45001: 2018
  • GB/T 27922-2011
  • SMTA
  • IPC
  • ESD
  • PSMA
PDZ2.4BZ Image

PDZ2.4BZ

Nexperia USA Inc.
98D-PDZ2.4BZ

Want a better price? Add to Cart and Submit RFQ now, we'll contact you immediately.

Allelco
About Us
History
Certifications
Recruitment
Policies
Terms & Conditions
Privacy Policy
Cookie Policy
Services
Order Tracking
Return & Replacement
Frequently Asked Questions
Contact Us
Order
Shipping & Delivering
Payment Methods
My Account
The BlogsHot PartsChange LanguageNewsSite map
Contact Us
Headquarters Address:
Room C 13/F Harvard Commercial Building
105-111 Thomson Road Wan Chai
HongKong
Service Tel: +852-91464856
Service Email: info@allelco.com
Follow us
Copyright © 2012-2025 AllelcoElec.com. All rights reserved.
0 RFQ
Shopping cart (0 Items)
It is empty.
Submit RFQ
Compare List (0 Items)
It is empty.
Feedback

Your feedback matters! At Allelco, we value the user experience and strive to improve it constantly.
Please share your comments with us via our feedback form, and we'll respond promptly.
Thank you for choosing Allelco.

Subject
E-mail
Comments
Captcha
Drag or click to upload file
Upload File
types: .xls, .xlsx, .doc, .docx, .jpg, .png and .pdf.
Max file size: 10MB