Model & package intelligence
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
Jingdao Microelectronics SMBJ7.0A
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- Electronic SMBJ7.0A
- Type
- Jingdao Microelectronics
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic
- Electronic Component
- SMBJ7.0A
- Electronic Component
- 1
- Package
- SMB
- Type
- TVS
- Electronic Component
- ESD and Surge Protection (TVS / ESD)
- Electronic Component
- 0.167g
- Electronic Component
- 1
- Cj- Capacitor
- 390pF
- Electronic Component
- BM0227663759
- Operating Temperature
- 65℃~+150℃
- Voltage
- 12V
- Current(Ir)
- 200uA
- Voltage(VBR)
- 8.6V
- Electronic Component
- Electronic Component
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
SMBJ7.0A KM 产品概述
一、产品简介
SMBJ7.0A KM 是晶导微电子推出的一款单向瞬态电压抑制器（TVS），采用SMB（DO-214AA）封装，专为抑制瞬态过电压和脉冲能量设计。器件在-65℃至+150℃的宽温区间内可靠工作，适用于对瞬态浪涌有高能量吸收要求的电源与信号保护场合。
二、主要性能特点
- 钳位电压（VC）：12V（典型值），在脉冲事件中将浪涌电压限制在安全范围内。
- 工作温度：-65℃ ~ +150℃，适用于严苛环境。
- 击穿电压（Vbr）：8.6V，反向截止电压（Vrwm）：7V，表示器件对7V级别系统的稳态保护能力。
- 峰值脉冲功率（Ppp）：600W（10/1000µs波形），峰值脉冲电流（Ipp）：50A（10/1000µs），具备强大的能量吸收能力。
- 结电容（Cj）：390pF，适合电源轨和低速信号线，但在高频高速数据线上需谨慎使用。
- 反向电流（Ir）：200µA，在额定Vrwm下的泄漏电流，适合多数电源保护应用。
三、典型电气参数与测试条件
以上峰值功率与峰值电流均基于10/1000µs浪涌波形测试，实际钳位电压随脉冲幅值与温度略有变化。结电容为典型值，随偏置电压变化。应以具体应用中的实际浪涌能量和频率为准，进行可靠性验证。
四、封装与热可靠性
SMB 小体积封装便于表面贴装（SMT）生产，良好的热散逸来自于PCB焊盘设计。推荐在布局时增大散热铜箔面积并靠近接地平面，以提高重复脉冲承受能力和热循环寿命。
五、应用场景
- 工业电源保护：7V等级电源轨的浪涌抑制与保护。
- 汽车与电池管理（需确认系统标准电压）：在电压低于Vrwm且需高能量吸收时适用。
- 通用电子设备：电源模块、继电器驱动、开关电源输入端和上游保护元件配合使用。
注意：由于结电容较大，不建议用于高速USB/以太网等高频信号线保护。
六、选型与使用注意事项
- 确认系统正常工作电压低于7V；若系统常态电压高于Vrwm，应选用相应Vw更高的型号。
- 布局时靠近被保护端并提供低阻抗回流路径，减少串联感抗。
- 考虑浪涌重复次数与能量，必要时并联或搭配熔断器/限流器以防器件过热失效。
- 在高湿或腐蚀性环境中注意封装及焊点可靠性，必要时采用额外防护措施。
七、结语
SMBJ7.0A KM 以高能量吸收能力、宽温区间和标准SMB封装，为需要对中低电压轨路进行稳健浪涌防护的电子系统提供了可靠选择。选型时应结合实际工作电压、浪涌波形及功率要求，合理设计PCB散热与保护策略，以获得最佳保护效果和长期可靠性。
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.
