WMSIC Electronic Components

MDD SMAJ28CA

ModelSMAJ28CA
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 SMAJ28CA
Type
MDD
Minimum package
5000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
MDD
Electronic Component
SMAJ28CA
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
BM0229465205
Operating Temperature
65℃~+150℃
Voltage
45.4V
Current(Ir)
1uA
Voltage(VBR)
34.4V
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.

SMAJ28CA 产品概述

一、产品概述

SMAJ28CA是一款双向瞬态抑制二极管(TVS),其设计目的是为电子设备提供有效的瞬态电压保护。这款二极管由知名品牌MDD生产,具有优良的保护特性,广泛应用于各类电子产品中以防止静电放电(ESD)和电涌(surge)对敏感元器件造成的损害。SMAJ28CA采用标准的DO-214AC封装(SMA),便于安装和散热,适合在不同的应用环境中使用。

二、主要参数

  1. 击穿电压(Vbr): SMAJ28CA具有34.4V的击穿电压,说明当外部电压超过此值时,二极管将进入导通状态,有效降低其后的电压以保护下游电路。

  2. 反向截止电压(Vrwm): 该器件的反向截止电压为28V,这意味着在此电压以下,二极管几乎不导电,从而不会对电路造成影响。

  3. 反向漏电流(Ir): 在Vrwm下,反向漏电流仅为1μA,这表明该二极管在工作状态下具有非常低的漏电特性,确保了其高效的功能及卓越的省电能力。

  4. 峰值脉冲功率(Ppp): SMAJ28CA的峰值脉冲功率为400W,显示了其能够承受的瞬态脉冲能量,这对于保护电子设备在面对短时高电压冲击时至关重要。

  5. 峰值脉冲电流(Ipp): 该二极管能够处理高达8.8A的瞬态电流,使其在电流突发的情况下,能够有效保护电路。

  6. 工作温度范围: SMAJ28CA的工作温度范围为-65℃至+150℃,这使得该器件适用于各种严苛的环境,提供可靠的性能表现。

  7. 最大钳位电压: 最高可达到45.4V的钳位电压,确保在电涌发生时,电压不会超过安全范围,从而对后级电路产生保护作用。

三、应用场景

SMAJ28CA的广泛应用领域包括:

  • 消费电子: 在手机、平板电脑、笔记本电脑等消费电子产品中,提供对电源电路和数据接口(如USB, HDMI)的过压保护。
  • 工业设备: 对工业自动化、通讯设备等进行保护,避免突如其来的电涌对设备造成损害。
  • 汽车电子: 在汽车电子系统中,通过保护关键控制模块(如ECU,传感器)来确保其在电气故障或雷电天气下正常工作。
  • 通信设备: 用于保护无线基站、网络通信设备不受高电压脉冲的影响。

四、总结

SMAJ28CA TVS二极管以其可靠的过电压保护特性,低反向漏电流和宽工作温度范围,成为各种电子设备的理想选择。MDD凭借其优质的制造工艺和严格的质量管理体系,确保了该产品的稳定性和耐用性。在电子领域,瞬态电压保护是维护系统长期稳定运行的关键,SMAJ28CA无疑是实现这一目标的高效器件。无论是在日常消费电子产品还是在特殊工业应用中,SMAJ28CA都能够为您提供强有力的电压保护,确保设备的安全与稳定。

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.