WMSIC Electronic Components

Jingdao Microelectronics SMAJ10A

ModelSMAJ10A
PackageSMA
BrandElectronic
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
Electronic SMAJ10A
Type
SMA
Minimum package
5000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic
Electronic Component
SMAJ10A
Electronic Component
1
Package
SMA
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.12g
Electronic Component
1
Electronic Component
BM0264086069
Operating Temperature
65℃~+150℃
Voltage
17V
Current(Ir)
5uA
Voltage(VBR)
12.3V
Electronic Component
Electronic Component
Electronic Component
5000

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

SMAJ10A(DO-214AC封装)TVS二极管产品概述

SMAJ10A是晶导微电子推出的表面贴装瞬态抑制二极管(TVS),采用SMA(DO-214AC)封装,针对低压电路的瞬态过压防护优化设计,具备宽温适应性、高脉冲耐受能力等核心特点,广泛应用于消费电子、汽车电子、工业控制等多领域。

一、产品基本信息与封装特性

SMAJ10A属于轴向引线式表面贴装器件,封装型号为DO-214AC(SMA),物理特性适配现代小型化电子设计:

  • 封装尺寸紧凑(典型值:长2.0mm×宽1.6mm×高1.0mm),可显著节省PCB布局空间,适合高密度集成产品;
  • 塑封结构具备良好的防潮、抗振动性能,支持回流焊工艺,便于自动化批量生产;
  • 引脚布局简洁,正反极性清晰(通常通过丝印或引脚长度区分),安装调试便捷。

二、核心电气参数详解

SMAJ10A的电气参数针对低压电路精准优化,关键指标如下:

1. 电压类核心参数

  • 反向截止电压(Vrwm):10V
    表示器件正常工作时可承受的最大反向电压,无击穿现象,确保电路长期稳定运行;
  • 击穿电压(Vbr):12.3V(典型值)
    反向电压达到此值时,器件进入雪崩击穿区,开始发挥过压抑制作用;
  • 钳位电压(Vc):17V(典型值)
    当峰值脉冲电流(Ipp)通过时,器件两端电压被钳位在此值,有效保护后续敏感元件(如MCU、传感器)免受过压冲击。

2. 脉冲耐受能力

  • 峰值脉冲电流(Ipp):23.5A(@10/1000μs波形)
    可承受的最大瞬态脉冲电流,波形符合“前沿10μs、半值时间1000μs”的IEC 61000-4-5浪涌测试标准;
  • 峰值脉冲功率(Ppp):400W(@10/1000μs波形)
    单次脉冲的最大耗散功率,反映器件抗浪涌的核心能力,可应对常见开关浪涌、雷电感应等瞬态干扰。

3. 其他关键参数

  • 反向漏电流(Ir):5μA(@Vrwm)
    反向截止状态下漏电流极小,可忽略不计,不会增加电路额外功耗;
  • 工作温度范围:-65℃~+150℃
    覆盖宽温环境,适配极端工况(如汽车发动机舱、工业户外设备)。

三、典型应用场景

SMAJ10A的低压特性使其成为以下场景的理想防护器件:

1. 消费电子领域

  • 手机、平板、蓝牙耳机等设备的USB充电口/数据接口防护,抑制静电放电(ESD)和电源浪涌;
  • 小型家电(如智能手环、智能家居传感器)的低压电源回路过压保护。

2. 汽车电子领域

  • 车载小功率模块(如胎压传感器、倒车雷达)的瞬态抑制,适配汽车级宽温(-40℃~+125℃)要求;
  • 车载12V低压直流电源的过压防护,避免开关浪涌损坏敏感元件。

3. 工业控制与通信

  • 小型PLC、传感器节点的ESD/浪涌防护,保障工业现场设备稳定;
  • 路由器、交换机等通信设备的端口防护,抑制雷电感应浪涌。

四、环境适应性与可靠性

SMAJ10A的可靠性设计满足多场景严苛需求:

  • 宽温稳定性:工作温度覆盖-65℃~+150℃,经高低温循环测试,性能无衰减;
  • 脉冲耐久性:多次承受额定脉冲后,参数无明显漂移,符合TVS器件长寿命要求;
  • 封装可靠性:DO-214AC塑封通过湿热、振动测试,适用于潮湿、振动等恶劣环境。

五、品牌与选型优势

晶导微电子作为国内资深半导体厂商,SMAJ10A具备以下选型优势:

  • 质量稳定:采用成熟工艺生产,参数一致性好,供货周期可控;
  • 性价比高:相比进口同类器件,成本优势明显,适合批量应用;
  • 适配性强:SMA封装可直接替代传统插件TVS,无需大幅修改PCB设计。

综上,SMAJ10A是一款专为低压电路设计的高性价比TVS二极管,凭借紧凑封装、宽温能力和强脉冲耐受特性,成为消费电子、汽车电子等领域过压防护的优选器件。

Request for quote

Send RFQ

Use the form for single models, category sourcing, and multi-line BOM requirements.

Send your target model and quantity.

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.

Electronic component model and package intelligence review on an ESD-safe inspection bench

Model & package intelligence

Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.

BOM matching and alternative component comparison workstation with protected IC samples

BOM matching & alternatives

BOM lines are compared by package, parameters, quantity, and workable alternatives for cleaner sourcing decisions.

Electronic component sourcing availability dashboard with ESD-protected samples

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.

Package confirmation Typical RFQ workflow

A multi-line BOM is organized into direct sourcing lines, lines that need package clarification, and lines where alternative-part review is permitted.

Mixed BOM triage Typical RFQ workflow

The original manufacturer part number, datasheet revision, application, critical limits, and acceptable changes are collected before possible candidates are discussed.

Obsolete-part review Typical RFQ workflow

Sample quantity, minimum packing, package format, target date, and courier destination are kept together in one RFQ conversation.

Small-batch request Typical RFQ workflow

Package photos, model markings, board context, and the quantity needed for repair help focus the sourcing review on the relevant version.

Repair batch evidence Typical RFQ workflow

When a suffix or package note is incomplete, the response records the open difference and requests buyer confirmation before procurement proceeds.

Model suffix clarification Typical RFQ workflow

Packing format, carton notes, invoice details, courier option, destination, and tracking handoff are coordinated around the confirmed order.

Export handoff Typical RFQ workflow

The request connects the previously used model, current demand, package evidence, target timing, and replenishment sourcing route.

Replenishment inquiry Typical RFQ workflow

Related products

Packaged components ready for RFQ.