WMSIC Electronic Components

Littelfuse SMAJ22A

Littelfuse SMAJ22A
1 / 3

Product image

ModelSMAJ22A
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

Send RFQ Contact customer service

Technical data

Product details

20 specifications

Core information

Product name
Littelfuse SMAJ22A
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
SMAJ22A
Electronic Component
1
Package
DO-214AC(SMA)
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.124g
Electronic Component
1
Electronic Component
BM0265620873
Operating Temperature
65℃~+150℃
Voltage
35.5V
Electronic Component
IEC 61000-4-4；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.

SMAJ22A 产品概述

产品简介

SMAJ22A 是一款高性能的瞬态电压抑制二极管（TVS），采用表面贴装型设计（DO-214AC/SMA），专为防护敏感电子设备免受过电压瞬变和浪涌电流的影响。其主要应用包括工业设备、汽车电子、通信设备以及其他需要过压保护的电子电路。

技术规格

根据提供的技术参数，SMAJ22A 的主要特性如下：

  • 类型：齐纳二极管 (Zener Diode)
  • 极性：单向 (Unidirectional)
  • 击穿电压（V_BR，最小值）：24.4V
  • 反向关断电压（V_R，典型值）：22V
  • 峰值脉冲电流（Ipp，10/1000µs）：11.3A
  • 箝位电压（V_CL，最大值）：35.5V（在峰值脉冲电流下）
  • 功率 - 峰值脉冲：400W
  • 工作温度范围：-65°C 至 150°C
  • 封装形式：DO-214AC，SMA

这些参数表明，SMAJ22A 具备优异的瞬态电压抑制能力，能够在极短时间内处理高达 11.3A 的脉冲电流。

应用领域

SMAJ22A 适用于各种需要保护的应用场景，包括但不限于：

  1. 电力电子：防止电力电子设备因过电压引发的故障，如变频器、逆变器等。
  2. 汽车电子：保护汽车中的电子控制单元（ECU）、传感器和执行器等免受电源浪涌影响。
  3. 通信设备：在通信基站和数据中心，保护设备不受雷击或电源浪涌的损坏。
  4. 消费电子：对手机、平板电脑、笔记本电脑等消费类电子产品中的敏感元件提供过电压保护。

设计优势

  1. 高抑制能力：SMAJ22A 提供了优越的箝位电压，能在瞬态高峰电流期间有效控制过电压，保护负载电路。
  2. 宽工作温度范围：其工作温度范围从 -65°C 到 150°C，适用于各种环境条件，保证长期稳定性能。
  3. 表面贴装型设计：便于自动化生产，节省空间，适合现代电子设备的紧凑布局需求。
  4. 高峰值功率处理能力：400W 的峰值脉冲功率能够满足多数工业和消费产品的瞬态突发电压保护需求。

结论

SMAJ22A 的设计充分考虑了现代电子设备的需求，通过其高效、可靠的过压保护性能，能够大幅降低电子设备在电压瞬变情况下的故障率。适用范围广泛且具备优秀的热稳定性，使其成为各种电子设计中不可或缺的重要器件。选用 SMAJ22A 基于 Littelfuse（美国力特）的品牌，将为客户的产品提供可靠性和保护能力，满足当今瞬态电压抑制的严苛需求。

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.