WMSIC Electronic Components

Leiditech SMC12

ModelSMC12
PackageSOT-23
BrandLeiditech
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
Leiditech SMC12
Type
LEIDITECH
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
LEIDITECH
Electronic Component
SMC12
Electronic Component
1
Package
SOT-23
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.017g
Electronic Component
1
Cj- Capacitor
35pF
Electronic Component
BM0227780502
Voltage
30V
Electronic Component
IEC 61000-4-4;IEC 61000-4-5;IEC 61000-4-2
Current(Ir)
500nA
Voltage(VBR)
13.3V
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.

SMC12 TVS二极管(Leiditech 雷卯电子)产品概述

一、产品简介

SMC12为Leiditech(雷卯电子)推出的一款双向瞬态电压抑制器(TVS),面向12V工作电压等级的瞬态浪涌和静电放电保护。器件采用SOT-23小封装,集成高能量吸收能力与低漏电特性,适用于汽车电子、工业控制、电源线及通讯接口等需要浪涌与ESD防护的场合。

二、主要性能参数

  • 类型:双向 TVS
  • 反向工作电压(Vrwm):12V
  • 击穿电压(Vbr min):13.3V
  • 钳位电压(Vc):30V(在指定脉冲条件下)
  • 峰值脉冲功率(Ppp):300W @ 8/20μs
  • 峰值脉冲电流(Ipp):10A @ 10/1000μs
  • 结电容(Cj):35pF
  • 反向漏电流(Ir):500nA(Vrwm条件下)
  • 符合标准:IEC 61000-4-2(ESD)、IEC 61000-4-4(EFT)、IEC 61000-4-5(浪涌)
  • 封装:SOT-23

三、产品特点

  • 双向保护:可吸收正负极性瞬态脉冲,无需外加反向并联器件,便于保护交流或双向信号线路。
  • 高能量吸收:8/20μs下300W的瞬态能量能力,可对中等强度浪涌提供有效钳制。
  • 低漏电与适中电容:Vrwm下Ir≈500nA,适合对漏电有一定要求的12V电源线;35pF结电容在多数电源及慢速信号线上影响较小。
  • 小型化封装:SOT-23便于贴片生产与空间受限设计。

四、典型应用

  • 12V车载电源线、点烟器及辅助电路的瞬态保护;
  • 工业控制设备中电源接口与外部信号的浪涌与ESD防护;
  • 通信设备的电源轨、接口电路防护(注意Cj对高速数据线的影响);
  • 消费类电子中需兼顾体积与防护能力的场合。

五、工程使用建议

  • 布局:TVS尽量靠近受保护端(输入接口或电源入口)放置,走线尽量短且粗,减少串联电感与阻抗。
  • 钳位注意:30V为典型钳位电压,设计时应确保后端元件或隔离电路能承受该电压峰值或增加串联限流/熔断器件。
  • 脉冲工况:标称能量基于特定波形(8/20μs或10/1000μs),实际应用中若遇更长或更高能量脉冲,应选用更高能量等级器件或并联防护方案。
  • 信号完整性:若用于较高速信号线(USB、LVDS等),35pF结电容可能影响信号,需评估或改用低电容型TVS。

六、可靠性与认证

SMC12已通过IEC 61000-4-2/4/4-5相关抗扰度测试,适用于商用与工业级抗干扰设计。建议在高可靠性系统中结合热管理、冗余与合适的PCB防护设计以提升整体可靠性。

七、选型与注意事项

  • 若系统工作电压接近12V且需双向保护,SMC12为适配良好之选;
  • 若需更低钳位或更大冲击电流能力,应参考器件数据手册并考虑更高Ppk或更低Vc的型号;
  • 评估结电容对信号速率的影响,在高速差分信号线优先选择低Cj器件。

八、品牌与包装

品牌:Leiditech(雷卯电子);封装:SOT-23。用于量产时建议索取器件完整数据手册与可靠性报告,并根据生产需求确认包装规格与出货状态。

如需基于具体波形的钳位测试曲线、典型寿命/温度特性或在特定应用线路的推荐布局示意图,可提供更详细的工程资料与应用建议。

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.