Model & package intelligence
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
Littelfuse SMBJ33CA
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
20
specifications
Core information
- Product name
- Littelfuse SMBJ33CA
- Type
- LITTELFUSE
- Unit
- Electronic Component
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic Component
- LITTELFUSE
- Electronic Component
- SMBJ33CA
- Electronic Component
- 1
- Package
- DO-214AA
- Electronic Component
- Electronic Component
- Type
- TVS
- Electronic Component
- ESD and Surge Protection (TVS / ESD)
- Electronic Component
- 0.202g
- Electronic Component
- 1
- Electronic Component
- BM0000002908
- Operating Temperature
- 65℃~+150℃
- Voltage
- 53.3V
- Electronic Component
- IEC 61000-4-2
- Current(Ir)
- 1uA
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
产品概述：SMBJ33CA 二极管
一、产品简介
SMBJ33CA是一款高性能的双向瞬态电压抑制（TVS）二极管，专为保护敏感电子设备免受瞬态电压和浪涌电流的影响。该器件采用SMB封装（DO-214AA），表面贴装型设计，具有优良的热性能和电气特性。作为Littelfuse（美国力特）品牌产品的一部分，SMBJ33CA凭借其卓越的性能和可靠性，广泛应用于各种电子设备的保护电路中。
二、主要特性
双向极性：
- SMBJ33CA具有双向极性设计，能够有效抑制正负两方向的瞬态电压，保护电路的安全。
峰值脉冲电流：
- 本产品的峰值脉冲电流（10/1000µs）为11.3A，能够承受高强度的瞬态电流，提供额外的安全保护。
箝位电压：
- 在峰值脉冲电流下，SMBJ33CA的箝位电压为53.3V，有效限制电路中瞬态电压的峰值，减少对连接元件的损害风险。
击穿电压：
- 器件的击穿电压最小值为36.7V，确保在超出正常工作电压时迅速启动保护机制。
反向关断电压：
- 反向关断电压的典型值为33V，进一步增强了其在断态工作时的电气稳定性。
功率管理：
- 该二极管具有600W的峰值脉冲功率能力，能够处理大功率瞬态事件。
工作温度范围：
- SMBJ33CA的工作温度范围从-65°C至150°C，适应各种环境条件，确保器件在不同温度下可靠工作。
表面贴装型设计：
- 其SMB封装适用于现代表面贴装技术（SMT），方便自动化生产，提高了装配效率。
三、应用场景
SMBJ33CA二极管的高性能特性使其广泛应用于多个领域，包括但不限于：
通信设备：
- 用于保护网络设备、移动基站及数据传输线路，防止雷电和电源浪涌造成的损害。
消费电子：
- 在智能手机、平板电脑及家用电器中，SMBJ33CA帮助保护电路板上的敏感组件，延长使用寿命。
工业设备：
- 在工控设备及自动化系统中，有效防止电压尖峰对控制电路造成的影响，提高系统的可靠性。
汽车电子：
- 该二极管亦可用于汽车电气系统，保护车载电子设备及电池管理系统，确保安全性和稳定性。
四、结论
SMBJ33CA二极管以其优异的电气特性和广泛的应用范围，成为瞬态电压抑制解决方案的理想选择。作为一款功能强大的保护元件，Littelfuse的SMBJ33CA为现代电子设备提供了有效的保护措施，确保设备在瞬态电压和浪涌电流条件下稳定运行。无论是在消费电子、工业控制还是通信领域，SMBJ33CA都是保护设计的优秀选择。
Request for quote
Send RFQ
Use the form for single models, category sourcing, and multi-line BOM requirements.
Product sourcing intelligence
Model, package, availability, and BOM fit reviewed before quotation.
WMSIC turns product data, package visuals, BOM context, and sourcing signals into practical RFQ notes for buyers.
BOM matching & alternatives
BOM lines are compared by package, parameters, quantity, and workable alternatives for cleaner sourcing decisions.
Sourcing availability signal
Stock routes, quotation confidence, lead-time notes, and shipment feasibility are checked before sales follow-up.
Buyer sourcing scenarios
Examples of how common component sourcing requests are organized.
Typical RFQ scenarios based on the WMSIC form fields, catalog data, manual review steps, and shipment preparation workflow.
The buyer shares the full part number, package requirement, quantity, destination, and available product photos so the quotation can record the exact version under review.
A multi-line BOM is organized into direct sourcing lines, lines that need package clarification, and lines where alternative-part review is permitted.
The original manufacturer part number, datasheet revision, application, critical limits, and acceptable changes are collected before possible candidates are discussed.
Sample quantity, minimum packing, package format, target date, and courier destination are kept together in one RFQ conversation.
Package photos, model markings, board context, and the quantity needed for repair help focus the sourcing review on the relevant version.
When a suffix or package note is incomplete, the response records the open difference and requests buyer confirmation before procurement proceeds.
Packing format, carton notes, invoice details, courier option, destination, and tracking handoff are coordinated around the confirmed order.
The request connects the previously used model, current demand, package evidence, target timing, and replenishment sourcing route.
Related products
Packaged components ready for RFQ.
