WMSIC Electronic Components

MDD SMAJ40A

ModelSMAJ40A
PackageSMA/DO-214AC
BrandMDD
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
MDD SMAJ40A
Type
MDD
Minimum package
5000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
MDD
Electronic Component
SMAJ40A
Electronic Component
1
Package
SMA/DO-214AC
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.094g
Electronic Component
1
Electronic Component
BM0264463807
Operating Temperature
65℃~+150℃
Voltage
64.5V
Current(Ir)
1uA
Voltage(VBR)
49.1V
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.

产品概述:SMAJ40A TVS二极管

一、引言

在现代电子设备中,静电放电(ESD)和浪涌电流对电子元器件的损害是一个不容忽视的问题。随着设备的日益小型化和复杂化,如何有效保护电路免受过压影响,已成为设计者需要考虑的重要因素。MDD公司推出的SMAJ40A TVS(瞬态电压抑制器)二极管,提供了一种可靠的解决方案,以确保敏感电子元器件在各种恶劣环境下的正常工作。

二、产品基本参数

  1. 击穿电压(VBR):49.1V

    • 当电压超过该值时,二极管会迅速导通,以保护下游电路。
  2. 反向截止电压(Vrwm):40V

    • 该电压是二极管正常工作的最大反向电压,适合于40V以下的电子设备。
  3. 反向漏电流(Ir):1μA

    • 在Vrwm下,反向漏电流极小,保证了二极管的高效率和低功耗特性。
  4. 峰值脉冲功率(Ppp):400W

    • 该参数表示在短时间内(通常为几毫秒),二极管能够承受的最大功率,适用于处理高能量的瞬态电压浪涌。
  5. 峰值脉冲电流(Ipp):6.2A

    • 表示二极管能够承受的最大瞬态电流,对于防止电流过载至关重要。
  6. 工作温度:-65℃~+150℃

    • 宽广的工作温度范围使得SMAJ40A可以在极端环境下稳定运行,适用于航空航天、汽车电子等应用领域。
  7. 最大钳位电压:64.5V

    • 一旦发生过电压事件,二极管将迅速钳位到该电压以下,保护设备免受破坏。
  8. 类型:单向TVS二极管

    • 该元件为单向设计,主要用于正极有效性保护。
  9. 封装:DO-214AC (SMA)

    • 该封装形式小巧、便于PCB安装,适合于空间受限的应用。

三、应用场景

SMAJ40A TVS二极管广泛应用于各种电子电路中,尤其适用于下列场景:

  1. 通信设备:

    • 在数据传输设备中,SMAJ40A可以有效防止静电过压造成的损坏,确保数据传输的稳定与安全。
  2. 消费电子产品:

    • 例如智能手机、平板电脑等日常电子设备,应用该元件能够有效提升其对静电和浪涌脉冲的抗性。
  3. 汽车电子:

    • 随着汽车电子技术的发展,SMAJ40A可用于汽车内部各种电子控制单元(ECU)的电源和信号端口保护。
  4. 工业设备:

    • 适用于工业控制系统中的电源保护,帮助保护敏感的控制电路,延长设备的使用寿命。

四、总结

总的来说,MDD的SMAJ40A TVS二极管以其优良的电气特性和宽广的适用范围,成为电子产品设计中重要的过压保护组件。其小巧的DO-214AC封装和极低的反向漏电流,使得它在高集成、小型化设计中尤为受到青睐。无论是通信设备、消费电子产品,还是汽车电子与工业设备,SMAJ40A都是一个理想的保护选择,能够有效地提升系统的可靠性和安全性。

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.