WMSIC Electronic Components

Littelfuse SMAJ70CA

Littelfuse SMAJ70CA
1 / 3

Product image

ModelSMAJ70CA
PackageSMA(DO-214AC)
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 SMAJ70CA
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
SMAJ70CA
Electronic Component
1
Package
SMA(DO-214AC)
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.124g
Electronic Component
1
Electronic Component
BM0257639719
Operating Temperature
65℃~+150℃
Voltage
113V
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.

SMAJ70CA 产品概述

概述

SMAJ70CA是由Littelfuse（美国力特）公司生产的一款高性能齐纳二极管，广泛应用于电气和电子设备的过电压保护。这种元器件设计用于提供高效的电压钳位，帮助防止电路因为瞬态电压峰值而受到损害。其主要特性包括反向断态电压、击穿电压、峰值脉冲电流和工作温度范围，使得它能够在苛刻的条件下稳定工作。

关键参数

  1. 类型: 齐纳二极管
  2. 双向通道: 1
  3. 电压 - 反向断态（典型值）: 70V
  4. 电压 - 击穿（最小值）: 77.8V
  5. 不同 Ipp 时电压 - 箝位（最大值）: 113V
  6. 电流 - 峰值脉冲 (10/1000µs): 3.5A
  7. 功率 - 峰值脉冲: 400W
  8. 电源线路保护: 无
  9. 应用: 通用
  10. 工作温度: -65°C ~ 150°C（TJ）
  11. 安装类型: 表面贴装型
  12. 封装/外壳: DO-214AC，SMA
  13. 供应商器件封装: DO-214AC（SMA）

应用场景

SMAJ70CA的高反向断态电压使其成为各种电源和电路保护的理想选择，尤其适合工业控制系统、消费电子、汽车电子以及通信设备等领域。其宽广的工作温度范围（-65°C至150°C）保证了在极端环境下的可靠性，适用于航空航天、军事和高温应用。

在现代电子设计中，过电压保护是保证设备安全和稳定的关键措施。SMAJ70CA通过其瞬态电压抑制特性，可以有效吸收电压尖峰，保护下游组件免受损坏。例如，在电源管理电路中，当输入电压出现瞬态变化时，SMAJ70CA能够快速响应，通过箝位过高的电压，防止对敏感元件造成损害。

性能和优势

SMAJ70CA具有许多优越的性能特征：

  • 高击穿电压: 具有典型的70V反向断态电压和最小77.8V的击穿电压，能够在多个电压等级的应用中提供可靠的保护。
  • 强大的脉冲处理能力: 可以承受高达3.5A的峰值脉冲电流和400W的脉冲功率，适合应对工业应用中的大电流瞬态。
  • 优异的热稳定性: 它的工作温度范围广泛，使其能够在高温或低温的极端环境中可靠运行，适用于多种工业及生产场景。
  • 便于集成: 采用DO-214AC（SMA）封装，适合表面贴装，有助于现代自动化焊接工艺，提高生产效率。

总结

SMAJ70CA是一款非常实用的保护元件，能够满足当前电子设备对于过电压保护的需求。它的高性能特点、可靠的工作温度范围以及易于使用的表面贴装设计，使得它在众多应用中不可或缺。无论是在消费电子领域还是在更复杂的工业控制系统中，SMAJ70CA都能提供强有力的保护和支持，是理想的选择。随着现代电子设备对安全性的日益重视，选择一款可靠的齐纳二极管，如SMAJ70CA，将为您的设计增添一份保障。

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.