Model & package intelligence
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
DOWO SMB10J30CA
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- DOWO SMB10J30CA
- Type
- DOWO
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- DOWO
- Electronic Component
- SMB10J30CA
- Electronic Component
- 1
- Package
- SMB(DO-214AA)
- Electronic Component
- Electronic Component
- Type
- TVS
- Electronic Component
- ESD and Surge Protection (TVS / ESD)
- Electronic Component
- 0.225g
- Electronic Component
- 1
- Electronic Component
- BM0249905768
- Voltage
- 48.4V
- Current(Ir)
- 1uA
- Voltage(VBR)
- 33.3V
- Electronic Component
- Electronic Component
- Electronic Component
- 3000
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
SMB10J30CA 瞬态抑制二极管产品概述
一、产品简介
SMB10J30CA 是 DOWO(东沃) 出品的一款双向瞬态电压抑制（TVS）二极管，封装为 SMB (DO-214AA)。其设计用于吸收电源线和信号线突发的高能脉冲，保护后端电路不受过压损害，适用于工业、通信、电源和其它需要抗浪涌保护的场合。
二、主要电气参数
- 极性：双向（适合正负电压对称的脉冲抑制）
- 反向截止电压 Vrwm：30 V
- 击穿电压 Vbr：33.3 V
- 钳位电压 Vc（在规定脉冲下）：48.4 V
- 峰值脉冲电流 Ipp：20.66 A
- 峰值脉冲功率 Ppp：1 kW @ 10/1000 μs（典型能量吸收能力）
- 反向漏电流 Ir：1 μA（在 Vrwm 条件下的典型值）
- 类型：TVS，型号 SMB10J30CA
三、关键特性与优势
- 双向结构：可在双极性或可反向连接系统中直接使用，无需额外极性保护电路。
- 高能量吸收：1 kW@10/1000 μs 表明在工业级冲击下具备良好的瞬态吸收能力，钳位电压控制在 48.4 V，限制过压幅度，保护后级器件。
- 低漏电与稳定击穿：1 μA 的低漏电特性有利于高阻电源或待机电路，33.3 V 的击穿电压与 30 V 的工作电压匹配，便于在 24 V 或接近 30 V 的系统中使用。
四、典型应用场景
- 工业电源与控制设备的浪涌保护（24 V 电源总线、I/O 接口）
- 通信设备与基站防护，防止雷击或线路感应过压
- 电源模块输入端、逆变器及驱动电路的前端防护
- 任意需要双向抑制的模拟/数字信号端口
五、设计与布局建议
- 将 TVS 器件尽量靠近被保护的端口或接地端放置，缩短互联导线以减少感性寄生。
- 在高能量脉冲应用中，保证 PCB 有足够的铜层散热并考虑器件的热累积与多次脉冲退化。
- 若应用会遭受多次高能脉冲，应参考可靠性曲线并考虑冗余或更高能量等级的器件。
六、选型与注意事项
- 验证系统的最大工作电压不超过 Vrwm（30 V），同时确认钳位电压（48.4 V）对后级器件是可接受的。
- 对于需要车规级认证的应用，请确认供应商是否提供相应的认证资料；若无，则慎用于关键安全系统。
- 安装前请查看厂家完整数据手册以确认热阻、极限结温和推荐的焊接工艺。
七、封装与采购
- 封装：SMB (DO-214AA)，便于自动化贴装与波峰/回流焊接。
- 型号：SMB10J30CA，品牌：DOWO(东沃)。采购时注意型号与极性（双向）标注，避免混装。
SMB10J30CA 以其双向抑制、较高的能量处理能力和紧凑的 SMB 封装，适合作为许多 24–30 V 级系统的瞬态保护元件。选型与布局时建议结合实际脉冲幅度、次数和热管理需求，按照厂家数据手册进行最终评估。
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.
1 Piece BGA Integrated Circuit Chipset MN864739 CXD90061GG CXD90062GG PS5 QFN-80
- Model
- MN864739
- Package
