WMSIC Electronic Components

BORN SMBJ75CA

ModelSMBJ75CA
PackageSMB(DO-214AA)
BrandBORN
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
BORN SMBJ75CA
Type
BORN
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
BORN
Electronic Component
SMBJ75CA
Electronic Component
1
Package
SMB(DO-214AA)
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.185g
Electronic Component
1
Electronic Component
BM0264583389
Operating Temperature
55℃~+150℃
Voltage
121V
Current(Ir)
1uA
Voltage(VBR)
92.1V
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.

SMBJ75CA 双向瞬态抑制二极管(TVS)产品概述

SMBJ75CA是伯恩半导体(BORN)推出的一款双向瞬态抑制二极管(TVS),专为低压电路的过压防护设计,采用SMB(DO-214AA)表面贴装封装,具备宽工作温度范围、低漏电流等特点,可有效抑制静电放电(ESD)、浪涌脉冲等瞬态干扰,保障电路稳定运行。

一、产品基本属性

SMBJ75CA属于双向TVS器件,无需区分正负极性,可同时防护电路正负方向的过压冲击;核心定位为低压直流/交流电路的瞬态过压保护元件,适用于对体积、可靠性要求较高的电子设备。

二、核心电性能参数

该器件的关键电性能参数针对常见浪涌场景优化,具体如下:

  1. 反向截止电压(Vrwm):75V
    常态工作下,器件可承受的最大反向电压,确保电路在额定电压范围内(如48V电源系统)正常工作时不导通,无额外功耗。
  2. 击穿电压(Vbr):92.1V
    器件发生雪崩击穿的典型电压,是过压防护的启动阈值——当电路电压超过该值时,TVS快速导通,将过压钳位至安全范围。
  3. 钳位电压(Vc):121V
    峰值脉冲电流(5A)下的最大电压,是TVS防护的最终电压上限,可将电路电压限制在121V以内,避免后端器件损坏。
  4. 峰值脉冲参数:
    • 峰值脉冲电流(Ipp):5A@10/1000μs(即10μs上升沿、1000μs半峰值的标准浪涌波形);
    • 峰值脉冲功率(Ppp):600W@10/1000μs;
      可有效抑制中等强度的浪涌脉冲(如雷击感应、开关浪涌)。
  5. 反向漏电流(Ir):1μA(@Vrwm)
    常态下反向漏电流极小,几乎不影响电路正常功耗,长期工作稳定性优异。
  6. 工作温度范围:-55℃~+150℃
    覆盖极端高低温环境,适合工业、汽车(高温工况)等严苛应用场景。

三、封装与可靠性设计

SMBJ75CA采用SMB(DO-214AA)表面贴装封装,尺寸紧凑(典型值:2.9mm×5.0mm×2.4mm),适配自动化贴装产线,同时满足高密度电路板的布局需求。
可靠性方面,器件通过严格的环境测试(如温度循环、湿度老化),多次浪涌冲击后性能无明显衰减,可长期稳定工作于恶劣工况。

四、典型应用场景

基于其双向防护、宽温特性,SMBJ75CA广泛应用于以下场景:

  1. 通信设备:路由器、交换机、光模块的以太网接口、电源端口防护;
  2. 工业控制:PLC(可编程逻辑控制器)、传感器、执行器的信号/电源接口;
  3. 消费电子:手机、平板的充电接口、USB数据端口(针对中等强度浪涌);
  4. 汽车电子:低压辅助电路(如12V/24V系统)的过压防护(适配150℃高温环境);
  5. 电源系统:48V直流电源、低压AC/DC适配器的浪涌抑制。

五、选型优势总结

相比同类TVS器件,SMBJ75CA具备以下核心优势:

  1. 双向防护简化设计:无需区分正负极,减少电路布局复杂度;
  2. 宽温范围适配严苛场景:-55℃~+150℃覆盖工业、汽车等高温/低温环境;
  3. 低漏电流低功耗:1μA反向漏电流不影响电路常态工作;
  4. 紧凑封装高密度贴装:SMB封装适合小型化电子设备;
  5. 可靠的浪涌防护能力:600W峰值功率可应对常见浪涌干扰。

该器件是低压电路过压防护的高性价比选择,可有效提升电子设备的抗干扰能力与可靠性。

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.