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DFLT30A-7

30V 单向 TVS、225W Ppp、48.4V clamp@4.65A、33.3-36.8V VBR、PowerDI 123、AEC-Q101

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制造商零件：

DFLT30A-7

包装：

PowerDI 123（3.7 x 2.8 x 1.78 毫米，2 引脚，SMD）

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说明

Diodes Incorporated 的 DFLT30A-7 是一款 225 W 单向 TVS 二极管，采用 PowerDI 123 封装。它具有 30 V 反向阻抗电压 (VRWM)、33.3-36.8 V 击穿电压、4.65 A 峰值脉冲电流下 48.4 V 最大箝位电压、1 uA 最大反向漏电流和 1 W 稳态功率耗散。通过 AEC-Q101 认证。工作温度范围为 -65C 至 +150C。后缀 -7 表示 3000 件带卷包装。.

Diodes Incorporated 的 DFLT30A-7 是采用紧凑型 PowerDI 123 表面贴装封装的单向瞬态电压抑制器 (TVS) 二极管。它是 DFLT 系列的一部分，涵盖 5.0 V 至 51 V 的隔离电压，可在常见系统电压范围内提供可扩展的保护。.

DFLT30A 提供 30 V 的反向阻抗电压 (VRWM)，适合保护 24 V 标称电压轨（24 V + 25% 容差 = 30 V 最大值）。33.3 V 的最小击穿电压可确保 TVS 在正常工作期间不导通，而 36.8 V 的最大击穿电压可确保它在受保护电路损坏之前开始箝位。.

在瞬态事件（IEC 61000-4-5 8/20 us 或 10/1000 us 波形）下，该器件在峰值脉冲电流为 4.65 A 时的最大箝位电压为 48.4 V。该箝位电压提供的保护裕量决定了下游集成电路是否能在瞬态事件中存活。.

PowerDI 123 封装的结点至焊点热阻极低，仅为 6C/W，可在浪涌事件中实现高效热传导。该封装在 10/1000 us 波形上的额定峰值脉冲功率为 225 W，在 8/20 us 波形上的额定峰值脉冲功率为 1125 W。1 W 稳态直流功率耗散使器件能够处理连续反向功率，而不会出现热失控。.

DFLT30A-7 通过了 AEC-Q101 汽车应用认证，使用绿色模塑料（无溴、无锑）。后缀 -7 表示带卷包装，每卷 3000 件。DFLT30A 的标记代码未在现有的数据表摘录中指明。.

**雪崩 TVS 操作：** DFLT30A 采用雪崩（齐纳）结，旨在处理高瞬态功率。正常工作时（电压低于 VRWM = 30 V），TVS 只消耗漏电流（最大 1 uA）。当瞬态电压超过击穿电压（VBR = 33.3-36.8 V）时，结会雪崩并箝位电压。.

**箝位机制：** 在雪崩事件中，TVS 具有较低的动态阻抗，在中等电流下可将电压保持在 VBR 附近。在额定峰值脉冲电流（IPP = 4.65 A）下，由于器件的动态阻抗，箝位电压会上升到最大 VC = 48.4 V。浪涌电流越小，箝位电压越低。.

**单向配置：** DFLT30A 是单向的，这意味着它只能箝位正瞬态（相对于阴极）。双向保护需要两个背靠背配置的器件或一个双向 TVS。.

**PowerDI 123 热优势：** PowerDI 123 封装具有一个大阴极片，可直接焊接到 PCB 铜浇注层上。由于 RthJS 仅为 6C/W，雪崩事件产生的热量可迅速传递到 PCB，从而降低峰值结温，提高浪涌存活率。这种热优势使得 225 W 峰值脉冲额定功率的封装尺寸小于 SMA/SMB。.

针脚 名称 类型 说明
1 阳极 I 阳极；根据配置连接到保护线或地线；封装上的阴极带表示阴极端；电流沿正向从阳极流向阴极
2 阴极 O 阴极；用于散热的大焊片；连接至受保护线路（阴极朝向正极轨）或 VCC 轨；将焊片焊接至带散热孔的铜浇注上，以获得最佳浪涌性能
应用 说明
24 伏工业总线保护 保护 24V 标称轨（24V +25% = 30V VRWM）；在 24-30V 正常工作期间，33.3V 最小 VBR 保持关闭；48.4V 箝位限制下游 IC 看到的瞬态；AEC-Q101 适用于工业/汽车；PowerDI123 可处理重复浪涌
汽车卸载保护 保护汽车 ECU 电源输入免受负载转储和 ISO 7637 脉冲的影响；30V VRWM 可覆盖 12V/24V 电池系统，并具有容差；10/1000us 波形上的 225W Ppp 可处理典型的汽车瞬态；与串联电阻器配对，可处理更高能量的事件
模型 制造商 兼容性 主要区别
DFLT26A-7 二极管公司 低电压变体 26V VRWM；28.9-32.0V VBR；42.1V 夹钳；相同的 PowerDI 123；用于公差更小的 24V 轨
DFLT33A-7 二极管公司 高压变体 33V VRWM；36.6-40.5V VBR；53.3V 钳位；相同的 PowerDI 123；用于 28V/30V 电源轨
SMAJ30A Littelfuse 一揽子替代方案 30V VRWM；33.3-36.8V VBR；48.4V 夹钳；SMA 封装（较大）；电气规格相同；在没有 PowerDI 123 基底面时使用
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质量保证

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:
  • 汽车电子: All automotive-grade components pass AEC-Q series certification, featuring excellent stability and durability to adapt to complex vehicle operating environments.
  • 医疗设备: High-reliability components meet medical industry safety and compliance regulations, ensuring stable operation for medical equipment.
  • 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.

联系我们

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

 

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

 

发货与付款

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.

1. Payment Terms

We offer a variety of secure and convenient payment methods to meet diverse business cooperation needs. Details are as follows:
  1. Accepted Payment Methods
  • T/T (Bank Wire Transfer): The primary settlement method for bulk orders and a widely used international payment channel.
  • PayPal: Ideal for small orders, sample orders and quick payments.

  1. Settlement Currency

     

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

  2. Bank Charges

     

    All transfer fees, intermediary bank charges and other remittance-related expenses shall be borne by the buyer.

  3. Payment Requirements
  • Sample and small orders: Shipment will be arranged upon full payment.
  • In-stock bulk orders: Goods will be delivered within 2 to 3 working days after full payment.

2. Shipping & Delivery

We partner with leading global logistics providers to ensure safe and fast delivery worldwide. Relevant details are listed below:
  1. Logistics Partners
  • International Express: DHL, FedEx, UPS, TNT
  • Economy Logistics: Air freight and sea freight for large-volume cargo
  • Domestic Delivery: SF Express, Yunda Express
  1. Order Processing Time
  • In-stock items: Orders confirmed and fully paid before 14:00 (GMT+8) will be shipped on the same day. All other orders will be dispatched within 1 to 2 working days.
  • Out-of-stock or sourced items: The delivery lead time will be confirmed separately according to brand and inventory status.
  1. Estimated Transit Time
  • International Express: 3 – 7 working days globally
  • Air Freight: 7 – 12 working days
  • Sea Freight: 25 – 40 working days for heavy and large bulk cargo
  1. Shipping Fee Rules
  • Shipping cost is calculated based on package weight, volume, destination and delivery method.
  • Both freight prepaid and freight collect are available. Please provide your courier account number in advance if you choose freight collect.
  • Free international express delivery is offered for large orders. Terms for long-term partners can be negotiated separately.
  1. Shipment Tracking
     

    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.

3. General Order Rules & Notes

  1. MOQ & Sample Service

     

    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.

  2. Packaging Standard

     

    All electronic components are packed with professional anti-static and shockproof materials. Original factory packaging is available for branded chips and integrated circuits.

4. Customs & Liability Statement

  1. Import Duties & Taxes

     

    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.

  2. Handling of Lost or Damaged Goods
  • In case of loss or severe damage during transit, please contact us within 48 hours after receiving the tracking information. We will assist you in filing a claim with the logistics provider.
  • We shall not be liable for any losses caused by incorrect delivery address, wrong contact information or the buyer’s refusal to complete customs clearance.

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@materialparts.com

Tel / WhatsApp: +86 13760382860

服务与包装

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.

4. Professional Technical Support

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.

5. Sourcing for Special Components

Relying on our global supply chain network, we professionally source scarce components, obsolete parts and customized special components to efficiently solve your procurement difficulties.

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;
  • Shockproof buffer materials are added for fragile products to ensure transportation safety;
  • Each package is clearly marked with part number, quantity, batch number and specifications for easy inventory counting and management.

2. Classified Professional Packaging

  • Anti-static Packaging: Static-sensitive components such as chips, circuit boards and sensors are packaged with anti-static bags, shielding boxes and conductive foam in strict accordance with international anti-static standards to prevent static damage.
  • 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@materialparts.com
Tel / WhatsApp: +86 13760382860
Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China
 

Online Inquiry Form

Support Excel, PDF, CSV format files for full BOM list quotation

Submit your component procurement and custom packaging needs via the form below. We will provide a detailed quotation and professional solution within 1–8 working hours.

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