WMSIC Electronic Components

Brightking SJD12A18L01

ModelSJD12A18L01
PackageSOD-123
BrandBrightking
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
Brightking SJD12A18L01
Type
BRIGHTKING
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Brightking
Electronic Component
SJD12A18L01
Electronic Component
1
Package
SOD-123
Electronic Component
Electronic Component
Type
ESD
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.038g
Electronic Component
1
Channel Count
Electronic Component
Electronic Component
BM0263665020
Operating Temperature
55℃~+150℃
Voltage
29.2V
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.

Brightking SJD12A18L01 单向ESD防护二极管产品概述

Brightking(台湾君耀)推出的SJD12A18L01是一款专为敏感电子电路设计的单向ESD防护二极管,采用SOD-123小型化封装,凭借精准的电性能参数与可靠的防护能力,广泛应用于消费电子、工业控制等多领域。以下从产品定位、核心参数、封装应用、可靠性及品牌优势等方面展开概述。

一、产品基本定位

SJD12A18L01属于单向瞬态抑制型ESD防护器件,核心作用是在静电放电(ESD)事件发生时,快速将电路中的过压脉冲钳位至安全范围,避免后端敏感元器件(如MCU、传感器、通信接口芯片等)因过压损坏。其设计针对中等电压等级(≤18V工作电压) 的电路,兼顾防护效果与电路兼容性,无需额外的复杂防护设计即可满足多数场景的静电防护需求。

二、核心电性能参数详解

该器件的关键参数围绕“正常工作不干扰、过压时快速防护”的核心需求设计,具体解读如下:

1. 反向截止与击穿特性

  • 反向截止电压(Vrwm):18V
    电路正常工作时(电压≤18V),器件反向处于截止状态,几乎不消耗电流,不影响原电路的信号传输与功耗;
  • 击穿电压:20V
    当遇到静电脉冲等过压事件时,器件会在20V左右快速导通,启动泄放机制,避免电压进一步升高。

2. 钳位与脉冲承载能力

  • 钳位电压:29.2V
    钳位电压是衡量防护效果的核心指标——过压脉冲经器件后被钳位至29.2V,远低于多数敏感芯片的耐压极限(如常见IO口耐压3.3V/5V/12V的芯片,可有效避免过压击穿);
  • 峰值脉冲电流(Ipp):6.9A
  • 峰值脉冲功率(Ppp):1kW(符合8/20μs标准脉冲波形)
    可应对典型ESD事件的能量冲击(通常ESD能量在几毫焦到几十毫焦之间),覆盖消费电子、工业控制等多数应用场景。

3. 反向漏电流

  • 反向漏电流(Ir):1μA
    极低的漏电流确保器件在正常工作状态下几乎不额外消耗电能,适合低功耗电子设备(如智能穿戴、物联网节点)的设计需求。

三、封装与典型应用场景

1. 封装特点

采用SOD-123封装,尺寸小巧(常规规格约2.9mm×1.6mm×1.1mm),占用PCB面积小,适合高密度布局的小型化电路(如智能手机接口、笔记本电脑Type-C端口);同时,SOD-123封装的引脚兼容性好,便于与同类防护器件替换,降低设计改造成本。

2. 典型应用领域

  • 消费电子:手机、平板、笔记本的USB接口、HDMI接口、音频接口等静电防护;
  • 工业控制:PLC输入输出端口、传感器节点、工业通信模块(如RS485)的过压防护;
  • 通信设备:路由器、交换机、光模块的端口防护;
  • 工业级扩展:部分温度要求在-55℃~150℃范围内的车载辅助系统(如车载传感器)、户外通信设备防护。

四、可靠性与合规性

1. 宽温工作范围

工作温度覆盖**-55℃至+150℃**,远超普通商业级器件(通常0℃~70℃),可适应工业现场的高温、低温环境,以及户外设备的极端温度变化(如沙漠地区的设备、寒冷地区的基站)。

2. 标准合规性

防护等级符合IEC 61000-4-2国际静电防护标准,可满足多数行业的电磁兼容(EMC)要求,无需额外的兼容测试即可直接应用于符合该标准的设备设计,缩短产品研发周期。

五、品牌与选型优势

Brightking(君耀)作为台湾老牌防护器件厂商,拥有20余年的瞬态抑制器件研发与生产经验,产品质量稳定可靠,曾为多家国际知名企业提供定制化防护方案;SJD12A18L01的参数清晰明确,选型时可直接匹配电路工作电压(≤18V)与防护需求,避免参数误选;此外,该器件的价格定位合理,兼顾性能与成本,适合批量应用于中低端电子设备。

综上,SJD12A18L01凭借精准的电性能、小型化封装、宽温可靠性及品牌优势,成为中等电压电路ESD防护的优选器件,可有效提升电子设备的静电防护能力与长期稳定性。

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.