WMSIC Electronic Components

ST SM6T18A TVS Diode SM6T18A

ST SM6T18A TVS Diode SM6T18A
1 / 3

Product image

ModelSM6T18A
PackageSMB(DO-214AA)
BrandST
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 Date code within 2 years

Available for RFQ

Send RFQ Contact customer service

Technical data

Product details

20 specifications

Core information

Product name
ST(STMicroelectronics) SM6T18A
Type
ST
Unit
Electronic Component
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
ST(STMicroelectronics)
Electronic Component
SM6T18A
Electronic Component
1
Package
SMB(DO-214AA)
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.224g
Electronic Component
1
Electronic Component
BM0000282388
Operating Temperature
55℃~+150℃
Voltage
32.5V
Electronic Component
IEC 61000-4-5；IEC 61000-4-2
Current(Ir)
200nA

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

SM6T18A 产品概述

产品简介 SM6T18A是一款由意法半导体（STMicroelectronics）推出的表面贴装型瞬态电压抑制二极管（TVS二极管），其主要功能是保护电子设备免受电压尖峰和瞬态干扰的影响，确保电路的安全与稳定。该产品采用DO-214AA（SMB）封装，便于自动化安装，广泛应用于各种电子设备的电源线路保护和信号线路保护。

技术参数

  1. 极性与结构： SM6T18A为单向（Unidirectional）二极管，适合用于需要单一方向电压保护的电路设计。

  2. 电压和电流特性：

    • **击穿电压（最小值）：**17.1V
    • **反向关断电压（典型值）：**15.3V
    • **箝位电压（最大值）：**32.5V（在峰值脉冲电流Ipp = 123A的情况下）
    • **峰值脉冲电流（10/1000μs）：**24A，能够在典型冲击条件下提供有效的保护。
    • **反向电压：**在正常工作条件下，反向电压值典型为15.3V。

  3. 功率处理能力： 该器件在大电流冲击下的峰值功率可达600W，确保在突发情况下能够有效抑制瞬态电压，减少对后端电路的损害。

  4. 工作温度范围： SM6T18A的工作温度范围为-55°C至150°C，适合在高温、严苛的环境条件下运行，具有良好的可靠性。

应用场景 SM6T18A广泛适用于各种电子产品的电源保护，如：

  • 消费电子设备：如手机、平板电脑和家用电器
  • 工业控制设备：如PLC、伺服电机控制器等
  • 通信设备：如基站、路由器和交换机
  • 汽车电子：如车载充电设备和汽车控制模块，确保在瞬态干扰下保护电路

它不仅能有效防止瞬间电压的影响，还能为后续电子元件提供最长久的保护，从而延长设备的使用寿命。

封装与安装 SM6T18A采用SMB（DO-214AA）封装，这种表面贴装型封装不仅体积小巧，有助于电路的高度集成，还支持自动化生产流程的快速贴片。其设计确保了良好的散热性能和可靠的电连接，满足现代电子设备对空间与效率的高度要求。

市场竞争力 凭借STMicroelectronics强大的技术背景和可靠的产品品质，SM6T18A在市场上具有一定的竞争优势。其高效的电压抑制能力和广泛的应用范围使其成为设计人员偏爱的选择，同时也有助于缩短开发周期，降低材料成本。

结论

SM6T18A是一款在电路保护应用中表现出色的瞬态电压抑制二极管，凭借其高电流处理能力、宽工作温度范围和可靠的性能，能够满足现代电子产品在电压保护方面的严苛要求。无论是在消费电子、通信设备还是工业控制领域，SM6T18A都展现出其独特的价值和广泛的适用性。选择SM6T18A，将为您的产品提供强有力的电压保护方案，确保产品的可靠运行与长期安全。

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.