WMSIC Electronic Components

YANGJIE SMBJ6.5A

ModelSMBJ6.5A
PackageDO-214AA(SMB)
BrandYANGJIE
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

13 specifications

Core information

Product name
YANGJIE SMBJ6.5A
Type
DO-214AA(SMB)
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
YANGJIE
Electronic Component
SMBJ6.5A
Electronic Component
1
Package
DO-214AA(SMB)
Electronic Component
0.206g
Electronic Component
1
Electronic Component
BM0230005019
Electronic Component
Electronic Component
Electronic Component
3000

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

SMBJ6.5A 产品概述

SMBJ6.5A 是 YANGJIE(扬杰)推出的一款单向瞬态电压抑制二极管(TVS),采用 SMB(DO-214AA)封装,专为抑制电源线、信号线和接口线上的浪涌、雷击或开关瞬变而设计。其稳健的浪涌吸纳能力、宽温度范围和紧凑封装使其适用于工业、通信、消费类及汽车电子等领域的过压保护需求。

一、主要特性(概要)

  • 极性:单向(Unidirectional),便于在需要方向性钳位的场合使用。
  • 额定反向工作电压 Vrwm:6.5 V(稳态条件下的最大安全电压)。
  • 击穿电压(Vbr):7.98 V(典型,测试电流下的击穿值)。
  • 钳位电压 Vc:11.2 V(在指定峰值脉冲电流下的最大钳位电压)。
  • 峰值脉冲电流 Ipp:53.6 A(10/1000 μs 浪涌波形)。
  • 峰值脉冲功率 Ppp:600 W(10/1000 μs 浪涌波形)。
  • 反向漏电流 Ir:500 μA(在 Vrwm 条件下的典型最大值)。
  • 工作温度范围:-55 ℃ ~ +150 ℃。
  • 封装:SMB (DO-214AA)。
  • 类型:TVS 二极管(瞬态抑制)。

二、功能与工作原理

SMBJ6.5A 在正常运行时以反向偏置工作,保持对电路的高阻态,仅有微小漏电流(Ir ≈ 500 μA)。当出现高于击穿阈值的瞬态过电压时,器件迅速导通,将过电压钳制在钳位电压附近,将能量安全地消散到地或返向线路,从而保护下游元件免受损坏。单向结构在反向时导通,正向情况下表现为普通整流二极管特性,便于与常见电源极性配合使用。

三、典型应用场景

  • 电源输入端浪涌保护(开关电源、适配器、电池管理)。
  • 通信接口与信号线防雷电与浪涌(以太网、RS‑232/485、CAN 总线等)。
  • 工业控制设备、PLC 与电机驱动中的过压防护。
  • 汽车电子(车载电源突波)、车载充电器与车身电子系统(需确认汽车认证要求)。
  • 消费电子与便携设备的外部接口保护。

四、使用与选型要点

  1. 额定工作电压选择:Vrwm(6.5 V)应高于系统正常工作电压的最大值,以避免常态下的过大漏电流,但也应尽量接近以保证钳位效果。
  2. 漏电容与漏电流:Ir = 500 μA,适合对漏电要求不苛刻的应用;对于低功耗或高阻输入电路需谨慎评估。
  3. 浪涌能力匹配:Ppp = 600 W(10/1000 μs),Ipp = 53.6 A,适用于中等能量的浪涌事件;若系统可能遭遇更大能量(如直接雷击),需并联或选用更高能量器件。
  4. 钳位电压:在 Ipp 条件下 Vc = 11.2 V,确保下游元件(如电源轨器件)能承受该瞬态电压或需配合额外抑制措施。
  5. 封装与散热:SMB 封装有利于波峰焊与自动化贴装,但在高能量吸收场合需注意焊盘和PCB散热设计,以利热量扩散。

五、封装与可靠性

SMB (DO-214AA) 为中等功率表面贴装封装,适配常见SMB焊盘布局和自动化生产流程。器件额定工作温度 -55 ℃ 至 +150 ℃,满足多数工业级环境要求。建议在布线时为保护器件提供足够的接地回路宽度与低阻抗路径,以提升保护效果并减小电磁干扰。

六、典型电路连接与注意事项

  • 单向器件通常将阳极接地,阴极连接待保护线路(或反之,按电路极性设计)。
  • 在高频或高速信号线使用时,注意TVS的结电容可能影响信号完整性,应核查器件的电容参数。
  • 多个保护器件并联时应注意分流均衡与PCB布局,以避免单个器件超载。

七、包装与订购信息

YANGJIE SMBJ6.5A 通常以卷带(Tape & Reel)形式供应,便于SMT贴装。订购时请确认所需数量、封装形式与出货方式,并参考厂家提供的详细数据手册以获取全部电气特性与封装尺寸信息。

总结:SMBJ6.5A 在中等能量浪涌抑制场合表现可靠,适用于多种电源与信号保护应用。合理选型与良好PCB设计可充分发挥其瞬态吸收能力,保障系统稳健运行。若需进一步数据(例如结电容、动态阻抗、浪涌能量曲线或封装尺寸),建议查阅厂商完整规格书或联系供应商获取验证样品。

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