WMSIC Electronic Components

HXY MOSFET SMBJ6.8CA

ModelSMBJ6.8CA
PackageSMB
BrandHXY MOSFET
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 Date code within 2 years

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
HXY MOSFET SMBJ6.8CA
Type
HXY MOSFET
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
HXY MOSFET
Electronic Component
SMBJ6.8CA
Electronic Component
1
Package
SMB
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.191g
Electronic Component
1
Electronic Component
BM0257677123
Operating Temperature
55℃~+150℃
Voltage
7.14V
Electronic Component
IEC 61000-4-2
Current(Ir)
1mA
Voltage(VBR)
6.45V;7.14V

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

SMBJ6.8CA 产品概述

一、产品简介

SMBJ6.8CA 是华轩阳电子(HXY MOSFET)出品的一款双向瞬态电压抑制器(TVS),采用 SMB 封装,专为保护敏感电子电路免受瞬态过压和静电放电冲击而设计。器件在瞬态脉冲条件下可提供高达 800W 的峰值脉冲功率(Ppp),对工业、通信和消费类电子设备的电源及信号线具有良好的保护能力。

二、主要规格参数

  • 极性:双向(Bidirectional)
  • 反向截止电压 Vrwm:5.8 V
  • 击穿电压 Vbr:6.45 V(典型/起始区间)
  • 钳位电压 Vclamp:7.14 V
  • 峰值脉冲电流 Ipp:57.1 A(基于标准脉冲条件)
  • 峰值脉冲功率 Ppp:800 W(10/1000 μs 波形或厂方指定条件)
  • 反向电流 Ir:1 mA(在 Vrwm 条件下)
  • 工作温度范围:-55 ℃ ~ +150 ℃
  • 防护等级/标准:符合 IEC 61000-4-2(ESD 抗扰度)
  • 封装:SMB(便于表面贴装或波峰回流焊接)

三、产品特性

  • 高能量吸收能力:800W 峰值脉冲功率和 57.1A 的瞬态电流能力,可在短时高能脉冲下有效钳位,保护下游器件。
  • 低钳位电压:7.14V 的钳位电压在 6.45V 的击穿附近工作,能将过压限制在安全范围内,减少对被保护电路的冲击。
  • 双向保护:适合交流或双向瞬态场景,如互联接口、电源线反向瞬态以及差分信号线。
  • 宽温度范围:-55 ℃ 至 +150 ℃ 的工作温度,适应工业及恶劣环境需求。
  • 良好的一致性与可靠性:低反向静态电流及符合 IEC 61000-4-2 的抗 ESD 能力,提升系统抗扰动性。

四、典型应用场景

  • 工业控制设备的电源与信号输入端口防护
  • 通信设备接口与供电总线保护
  • 消费类电子中对敏感模块(如 MCU、模拟前端)的线路保护
  • 汽车电子非关键线路的瞬态抑制(需根据车辆标准进一步验证)
  • 任何需要双向过压保护的差分或 AC 耦合线路

五、选型与使用建议

  • 确保 Vrwm(5.8V)大于或等于系统正常工作电压,留有一定裕度以避免长期偏置导致可耗散功率增加。
  • 评估实际脉冲波形(如 10/1000 μs 或 8/20 μs)与器件 Ppp、Ipp 规格的一致性,必要时并联或增加能量分流器件以提高吸收能量能力。
  • 双向器件在直流单向系统中会有双向导通特性,如应用于直流供电,建议确认是否优于单向 TVS。
  • PCB 布局尽量缩短泄放路径:将 TVS 靠近被保护接口放置,减少串联阻抗与环路面积,改善钳位效果与响应速度。
  • 焊接参数参考 SMB 封装的回流工艺规范,避免过高温度造成器件性能退化;储存与回流过程中遵循湿敏等级建议。

六、可靠性与合规

SMBJ6.8CA 在抗静电放电方面满足 IEC 61000-4-2 标准,能有效抵御常见的人体或设备放电冲击。其宽温度特性与 SMB 封装有助于在工业环境中长期稳定运行。实际应用中建议结合相应的应力测试与系统级验证,确保在目标环境与工况下的可靠性。

总结:SMBJ6.8CA 以其 800W 的瞬态吸收能力、57.1A 的高脉冲电流承受能力和 7.14V 低钳位,适合需要双向瞬态保护的多种应用,是对电源与信号线提供高效保护的实用选择。

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