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BZX84-B5V1

5.1V Zener diode, ±2% tolerance, 250mW, SOT23, AEC-Q101 qualified

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Manufacturer Part：

BZX84-B5V1

Package：

SOT23 (TO-236AB) 2.9 x 1.3 x 1.0 mm

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Description

Product Overview

The Nexperia BZX84-B5V1 is a low-power voltage regulator Zener diode in a SOT23 (TO-236AB) SMD package. It offers a nominal Zener voltage of 5.1 V with ±2% tolerance, total power dissipation up to 250 mW, and a non-repetitive peak reverse power dissipation of 40 W. It is AEC-Q101 qualified for automotive applications.

Key Specifications

Zener Voltage (VZ) 5.1 V (nominal)
Tolerance ±2%
VZ Range 5.0 V to 5.2 V
Zener Current (IZ) 5 mA
Total Power Dissipation 250 mW
Peak Reverse Power (PZSM) 40 W
Forward Current (IF max) 200 mA
Max Junction Temperature 150°C
Operating Temperature -65°C to +150°C

Features

  • Total power dissipation up to 250 mW
  • ±2% tolerance (BZX84-B series)
  • Non-repetitive peak reverse power dissipation up to 40 W
  • AEC-Q101 qualified for automotive use
  • Working voltage range from 2.4 V to 75 V across the BZX84 series
  • Compact SOT23 surface-mount package

Applications

  • General voltage regulation functions
  • Voltage reference circuits
  • Over-voltage protection
  • Automotive electronics

The Nexperia BZX84-B5V1 is a low-power voltage regulator Zener diode housed in a compact SOT23 (TO-236AB) surface-mount plastic package. It provides a nominal Zener voltage of 5.1 V with ±2% tolerance, making it suitable for precision voltage regulation and reference applications. The BZX84 series includes 37 breakdown voltages from 2.4 V to 75 V in three tolerance series: ±1% (BZX84-A), ±2% (BZX84-B), and approximately ±5% (BZX84-C). The device features total power dissipation up to 250 mW and non-repetitive peak reverse power dissipation of 40 W. It is AEC-Q101 qualified, ensuring reliability in automotive environments. The operating temperature range extends from -65°C to +150°C.

The BZX84-B5V1 operates in the reverse breakdown region of its P-N junction. When the reverse voltage across the diode reaches the Zener voltage (5.1 V nominal), the diode begins conducting current while maintaining a relatively stable voltage across its terminals. This voltage regulation property is based on Zener breakdown (for voltages below approximately 5.6V) where quantum tunneling of charge carriers occurs in the heavily doped junction. The ±2% tolerance ensures the actual breakdown voltage remains between 5.0 V and 5.2 V. The diode must be operated with an appropriate series current-limiting resistor to ensure the Zener current stays within the recommended range (IZ = 5 mA nominal) while keeping power dissipation below 250 mW.

Pin Name Type Function
1 Cathode Terminal Cathode connection (marked side)
2 Anode Terminal Anode connection
3 Anode Terminal Anode connection (common with pin 2)
  • Voltage regulation in low-power circuits
  • Precision voltage reference for ADC/DAC
  • Over-voltage protection for sensitive components
  • Automotive electronic control modules
  • Signal clipping and limiting circuits
Manufacturer Part Number Package Notes
onsemi BZX84C5V1LT1G SOT-23 ±5% tolerance variant
Vishay BZX84-C5V1 SOT-23 Equivalent Zener voltage
Diodes Inc BZX84C5V1-7-F SOT-23 ±5% tolerance variant
Nexperia BZX84-A5V1 SOT23 ±1% high-precision variant
Nexperia BZX84-C5V1 SOT23 ±5% tolerance variant
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Quality Assurance

Quality is the core foundation of our long-term global cooperation. With over 20 years of experience in the electronic component industry, Materialparts has built a strict and standardized quality management system covering component sourcing, incoming inspection, full-batch testing, packaging and delivery. We are committed to delivering 100% genuine, high-reliability electronic components for industrial control, automotive electronics, consumer electronics and medical device industries, and fully safeguarding your production and R&D projects.

1. Authorized & Genuine Sourcing Promise

All of our electronic components are procured from official authorized distributors and original manufacturers. We strictly reject counterfeits, refurbished parts, disassembled components and gray-market goods. Every product is guaranteed to be brand-new original parts and fully consistent with the original technical parameters. For branded products such as NXP IC series, we maintain complete supply channel documents to realize full product traceability.

2. Strict Full-batch Quality Inspection

We implement 100% full-batch quality control for all goods before shipment. Our professional QC team conducts multi-dimensional tests including appearance inspection, electrical parameter testing, performance verification and packaging check. Each batch of components is attached with complete inspection reports and batch records. We stick to zero-tolerance standards for defective products to ensure every piece of component meets industrial application requirements.

3. Industry Standard Compliance

Our products comply with a variety of international industry quality standards to adapt to high-standard application scenarios:
  • Automotive Electronics: All automotive-grade components pass AEC-Q series certification, featuring excellent stability and durability to adapt to complex vehicle operating environments.
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  • Industrial Control & Consumer Electronics: Products conform to universal international electronic industry standards, suitable for long-term continuous operation of various equipment.

4. Professional Reliability Control

For static-sensitive, moisture-sensitive and precision components such as ICs, PCBs, sensors and connectors, we carry out reliability screening in advance. Combined with standardized ESD anti-static packaging and vacuum moisture-proof packaging, we avoid component damage caused by static electricity, dampness or collision during storage and transportation, and retain the original performance of products.

5. Traceability Management System

We establish a complete product traceability system. Each batch of goods corresponds to independent batch number, sourcing record, inspection record and delivery record. Customers can query the whole lifecycle information of components at any time. This system effectively solves quality risks and facilitates after-sales handling and production quality control for your company.

6. After-sales Quality Guarantee

If any product is confirmed to have non-conformity quality problems due to our reasons after receipt, we provide free return, exchange and supplementary delivery services. Our professional quality team will also conduct root cause analysis to optimize our quality control process. We respond to quality feedback within 24 hours to resolve your worries efficiently.

Contact Us

If you have inquiries about our quality standards, inspection procedures or product certification documents, please feel free to contact us:

 

Email: info@ic-vendor.com
Tel / WhatsApp: +86 13760382860
Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China

 

Shipping & Payment

Materialparts is a professional global supplier of electronic components with over 20 years of industry experience. We provide one-stop supply of passive components, integrated circuits, as well as parts for industrial control, automotive electronics, consumer electronics and medical devices. Below are the unified shipping and payment policies applicable to all orders, samples and bulk purchases worldwide.

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    US Dollar (USD) is the default settlement currency. RMB is available for domestic customers.

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  • Out-of-stock or sourced items: The delivery lead time will be confirmed separately according to brand and inventory status.
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  • Air Freight: 7 – 12 working days
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    Within 24 hours after dispatch, we will send the tracking number, commercial invoice, packing list and other documents to your email or communication account. You may check the shipment status online in real time.

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    We support flexible minimum order quantities for samples, small-batch and large-batch orders. All sample orders shall comply with the above shipping and payment policies.

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4. Customs & Liability Statement

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    All import duties, customs clearance fees and local taxes incurred for international shipments shall be borne by the buyer. We will provide complete customs documents to assist you with clearance procedures.

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5. Local Pickup in Shenzhen

Local pickup service is available for customers in Shenzhen and surrounding areas:
  • Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong Province, China
  • Business Hours: 09:00 – 18:00, Monday to Friday. Closed on weekends and official public holidays.
  • Notice: Please make an appointment via email or communication tools one day in advance, and present your order information upon pickup.

Contact Information

Email: info@ic-vendor.com

Tel / WhatsApp: +86 13760382860

Service & Packaging

Materialparts is a professional electronic component supplier based in Shenzhen, China, with over 20 years of global trading experience. We integrate component procurement, quality inspection, technical support, customized packaging, and global delivery services to provide one-stop supply chain solutions. Our business covers industrial control, automotive electronics, consumer electronics, medical devices and other industries. We always adhere to genuine sources, stable supply and considerate after-sales service.

Core Services

1. One-stop Sourcing & BOM Support

We specialize in a full range of passive and active electronic components, including SMD resistors, power resistors, connectors, aviation connectors, LED beads, flexible circuit boards, printed circuit boards, and integrated circuits. Our professional team provides BOM list consolidation, component matching, and alternative model recommendation services. We support sample orders, small-batch trial production, and mass production orders with flexible MOQs to meet diverse procurement needs.

2. Genuine Product Guarantee & Full-process Quality Inspection

All products are sourced from official authorized channels and are 100% original genuine parts. Every batch of goods undergoes strict full-process quality inspection before delivery, with complete batch records and traceability documents provided. Our products comply with AEC-Q standards for automotive electronics and high-reliability specifications for medical devices. We eliminate counterfeits, refurbished parts and defective products from the source to secure your project production.

3. Fast Quotation & Order Processing

Our customer service team responds promptly to inquiries and quotation requests. All in-stock orders will be processed within one working day. We provide stocking reservation services for long-term cooperative customers, effectively solving problems such as component shortages and unstable supply chains.

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Our senior engineer team provides free technical consultation, model selection guidance and original manufacturer datasheets. We assist customers in solving problems related to product R&D, circuit design and component application, providing reliable technical support for project progress.

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6. Global Logistics & Document Services

We cooperate with mainstream international logistics providers including DHL, FedEx, UPS and TNT to achieve fast global delivery. We can provide complete export documents such as customs declaration files, commercial invoices and packing lists to ensure smooth customs clearance for international shipments. Local pickup is also available for customers in Shenzhen, China.

Professional Packaging Standards

Electronic components are sensitive to static electricity, collision, moisture and dust. We adopt industry-standard anti-static packaging solutions to fully ensure the integrity of goods during transportation and storage.

1. General Packaging Specifications

  • All components are packed separately to avoid damage caused by friction and collision;
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  • Vacuum Moisture-proof Packaging: Moisture-sensitive components are vacuum-sealed with desiccants to isolate humid air, suitable for ocean transportation and long-term storage.
  • Original Factory Packaging: Integrated circuits of brands such as NXP are delivered with original reels, trays or tubes by default, retaining complete original packaging and adapting to automated SMT production lines.
  • Discrete Device Packaging: Discrete devices such as SMD resistors, power resistors and LEDs are quantitatively and classifiedly packaged with accurate quantity and clear marking.
  • Connector / Aviation Connector Packaging: Hard outer packaging is adopted to prevent pin bending and structural deformation.

3. Custom Packaging Services

We provide value-added services including personalized packaging, custom labeling and re-reeling according to customer requirements, fully matching your production and warehouse management standards.

Contact Information

For service consultation or packaging customization, please feel free to contact us:
Email: info@ic-vendor.com
Tel / WhatsApp: +86 13760382860
Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China
 

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