首页 > 集成电路 IC > 模拟线性集成电路 > SMAJ33CA

SMAJ33CA

TVS Diode, 600W Bi-dir, 33V WM, 53.3V Clamp, SMA

34567

有效库存
转到查询

Image for reference only

制造商零件：

SMAJ33CA

包装：

SMA / DO-214AC (5.2 x 2.6 x 2.1 mm)

品牌：
产品类别：
质量承诺
发货与付款
服务与包装
产品手册
您可能感兴趣的其他建议.

C1206C226Z9VAC-TU

MA0805XR-106K-6R3ER

LQW18AN62NG00D

CC0603JRNPO9BN681

CC0603KRX7R7BB471

CC0603KRX7R9BB471

C3225X7T2W224K200AA

CC0603KRX7R8BB224

说明

产品概览

The SMAJ33CA from Littelfuse is a 600W bidirectional TVS diode with 33V working voltage and 53.3V clamping voltage in an SMA (DO-214AC) package.

主要规格

类型 600W Bidirectional TVS Diode
Peak Pulse Power (PPPM) 600 W @ 10/1000 us
Working Voltage (VRWM) 33 V
Breakdown Voltage (VBR) 36.7 V (min) ~ 40.6 V (max)
Clamping Voltage (VC) 53.3 V @ IPP=11.3A
Peak Pulse Current (IPP) 11.3 A
Leakage Current (IR) 1 uA (max) @ VRWM
配置 Bidirectional (CA suffix)
包装 SMA (DO-214AC)
工作温度 -55C to +150C

特点

  • 600W peak pulse power dissipation
  • 33V bidirectional protection
  • 53.3V clamping voltage at 11.3A
  • Low 1uA leakage current at working voltage
  • SMA surface mount package
  • CA suffix: bidirectional protection

应用

  • 24V/28V power line transient protection
  • Industrial control signal line protection
  • Automotive load dump protection
  • RS-485 bus ESD/surge protection

The SMAJ33CA from Littelfuse is a 600W bidirectional transient voltage suppression (TVS) diode in an SMA (DO-214AC) surface mount package. The device protects sensitive electronics from voltage transients caused by ESD, EFT, and surge events. The 33V working voltage (VRWM) is suitable for protecting 24V and 28V power rails. The bidirectional configuration (CA suffix) clamps both positive and negative transients, making it ideal for AC signal lines and bidirectional data buses. When the transient voltage exceeds the breakdown voltage (36.7-40.6V), the TVS diode avalanches and clamps the voltage to 53.3V at the peak pulse current of 11.3A. The 600W rating is specified for a 10/1000us waveform per IEC 61000-4-5. The 1uA maximum leakage current at the working voltage minimizes power consumption in always-on protection circuits.

The SMAJ33CA uses two back-to-back avalanche diodes in a single chip to provide bidirectional voltage clamping. In normal operation, both diodes are reverse-biased at voltages below VRWM (33V), drawing only the specified leakage current (1uA max). When a positive transient exceeds the breakdown voltage (VBR = 36.7-40.6V), one diode avalanches and the other diode conducts in the forward direction. The combined voltage is the clamping voltage (VC = 53.3V at 11.3A). For negative transients, the roles reverse. The avalanche mechanism is a quantum tunneling effect where the high electric field in the depletion region accelerates carriers to energies sufficient to create electron-hole pairs through impact ionization, creating a self-sustaining multiplication that rapidly increases current. The 600W peak pulse power is limited by the thermal mass of the silicon chip and the package, with the energy absorbed during the 10/1000us pulse raising the junction temperature to near its limit.

针脚 名称 类型 功能
1 阳极 Terminal Terminal 1 (bidirectional)
2 阴极 Terminal Terminal 2 (bidirectional)
  • 24V industrial power rail protection against IEC 61000-4-5 surge (600W)
  • RS-485 bus bidirectional ESD/surge protection with 33V standoff
  • 28V automotive accessory power load dump protection
  • PLC analog input channel bidirectional transient protection
制造商 部件编号 包装 说明
Littelfuse SMBJ33CA SMB Same specs, larger SMB package
onsemi SMAJ33CA SMA Pin-compatible equivalent
Bourns SMAJ33CA SMA Pin-compatible equivalent
Littelfuse SMAJ33A SMA Unidirectional version
Littelfuse SMAJ30CA SMA 30V version for 24V rails
推荐部件

C1206C226Z9VAC-TU

22µF 6.3V Y5V MLCC, 1206 package, -20%/+80% tolerance, general-purpose decoupling

品牌:

封装:

1206 (3216 Metric, 3.20 × 1.60 × 1.70 mm)
有库存：
4287pcs

货运周期：3~7 天
最低订购量为 1

转到查询

MA0805XR-106K-6R3ER

10µF 6.3V X7R MLCC, 0805 package, ±10% tolerance, lead-free RoHS compliant

品牌:

封装:

0805 (2012 Metric, 2.10 × 1.25 × 1.60 mm)
有库存：
6482pcs

货运周期：3~7 天
最低订购量为 1

转到查询

LQW18AN62NG00D

62nH ±2% wirewound RF inductor, 0603, Q=38, SRF=2.3GHz, 280mA

品牌:

封装:

0603 (1608 Metric) – 1.6 × 0.8 × 0.8mm
有库存：
5170pcs

货运周期：3~7 天
最低订购量为 1

转到查询

CC0603JRNPO9BN681

680pF 50V C0G/NP0 MLCC, 0603, ±5%, zero TC RF capacitor

品牌:

封装:

0603 (1608 Metric) – 1.6 × 0.8 × 0.8mm
有库存：
8979pcs

货运周期：3~7 天
最低订购量为 1

转到查询

CC0603KRX7R7BB471

470pF 16V X7R MLCC, 0603, ±10%, low-voltage digital circuit decoupling

品牌:

封装:

0603 (1608 Metric) – 1.6 × 0.8 × 0.85mm
有库存：
5124pcs

货运周期：3~7 天
最低订购量为 1

转到查询

CC0603KRX7R9BB471

470pF 50V X7R MLCC, 0603, ±10%, EMI suppression and signal filtering

品牌:

封装:

0603 (1608 Metric) – 1.6 × 0.8 × 0.8mm
有库存：
3158pcs

货运周期：3~7 天
最低订购量为 1

转到查询
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@ic-vendor.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@ic-vendor.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@ic-vendor.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.

公司名称
洞察力
工业
所有产品
集成电路
工商设备
离散
内存芯片
MPU 和 MCU