WMSIC Electronic Components

Littelfuse SMAJ43A

ModelSMAJ43A
PackageDO-214AC(SMA)
BrandLittelfuse
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 Electronic Component

Available for RFQ

Technical data

Product details

20 specifications

Core information

Product name
Littelfuse SMAJ43A
Type
LITTELFUSE
Unit
Electronic Component
Minimum package
5000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
LITTELFUSE
Electronic Component
SMAJ43A
Electronic Component
1
Package
DO-214AC(SMA)
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.11g
Electronic Component
1
Electronic Component
BM0265279588
Operating Temperature
65℃~+150℃
Voltage
69.4V
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.

SMAJ43A 产品概述

在当今快速发展的电子设备环境中,过电压保护与峰值电流控制是确保电路安全可靠运行的重要因素。SMAJ43A是一款高性能的齐纳二极管,专为保障电路在高压瞬态情况下的可靠性所设计,广泛应用于各种通用电子设备和系统中的电源线路保护。

产品特性

  1. 类型与类别: SMAJ43A归类为齐纳二极管,是一种单向通道器件,主要用于电压钳位。这种设计使其能够在反向电压瞬态(如浪涌电压)发生时防止对敏感电路组件的损坏。

  2. 电压特性:

    • 反向断态电压(Vrwm):全面的反向断态电压值为43V,意味着在正常工作情况下,该器件能够有效支持该电压下稳定运作。
    • 击穿电压(Vbr):其最小击穿电压为47.8V,该值定义了器件在电压施加时开始导通的节点,确保在高于该值的条件下设备不发生故障。
    • 钳位电压(Vcl):在不同峰值电流(Ipp)情况下的最大钳位电压为69.4V,这一点尤为重要,当电路面临浪涌时,能够有效钳位电压以防止对单元的损坏。
  3. 电流与功率:

    • 峰值脉冲电流(Ipp):SMAJ43A的额定峰值脉冲电流为5.8A,这意味着在10/1000µs的脉冲条件下,该器件能够安全地承受相应强度的瞬时电流。
    • 峰值脉冲功率(Ppp):该器件的峰值脉冲功率高达400W,显示了其承受高能量冲击的能力,这是确保长期稳定运行的关键。
  4. 工作温度范围: SMAJ43A可以在-65°C至150°C范围内可靠工作,使其适用于各种环境条件下的电子应用。

  5. 封装类型: 该器件采用表面贴装型封装(DO-214AC,SMA),适合现代小型化和高密度布局的电路设计,在连接和散热方面表现出良好的特性。

应用领域

  • 通用电子设备:SMAJ43A广泛应用于各类通用电子设备中,特别是在电源和信号保护方面。
  • 通信设备:在通信行业,该器件用于保护信号线路免受过电压损害,保证信息传输的稳定性。
  • 消费电子:例如手机、计算机及家用电器等,能有效屏蔽来自电源的瞬态干扰。
  • 工业控制:用于自动化生产线与设备中,保护控制电路以及传感器的安全性。

结论

总之,SMAJ43A以其卓越的电压特性和强大的脉冲承受能力,成为现代电子设计中不可或缺的过电压保护元件。无论是在通用电子设备、通信设施还是工业控制等场景中,其稳定的性能、广泛的工作温度范围和有效的电流钳位特性,均为电子设备提供了坚实的安全保障。选择Littelfuse的SMAJ43A,必将使您的设计更加可靠与高效。

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.