WMSIC Electronic Components

CJ SMAJ6.5CA

ModelSMAJ6.5CA
PackageSMAG
BrandCJ
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
CJ SMAJ6.5CA
Type
CJ
Minimum package
5000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
CJ
Electronic Component
SMAJ6.5CA
Electronic Component
1
Package
SMAG
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.102g
Electronic Component
1
Electronic Component
BM0230578329
Operating Temperature
55℃~+150℃
Voltage
11.2V
Current(Ir)
500uA
Voltage(VBR)
7.98V
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.

SMAJ6.5CA — 双向瞬态抑制二极管(TVS)产品概述

一、产品简介

SMAJ6.5CA 是江苏长电/长晶(CJ)提供的一款双向瞬态电压抑制(TVS)二极管,封装为 SMAG(SMA 封装型)。该器件专为抑制瞬态过电压和浪涌能量而设计,能在极短时间内吸收高幅值脉冲能量,将过电压钳位在安全水平,从而保护下游电子元件和电路。器件工作温度范围宽(-55℃ 至 +150℃),适应苛刻的工业和消费类环境。

二、主要电气参数(典型/额定)

  • 极性:双向(bidirectional)
  • 反向截止电压 Vrwm:6.5 V
  • 击穿电压(典型):7.98 V
  • 钳位电压(典型):11.2 V
  • 峰值脉冲电流 Ipp:35.7 A(10/1000 μs 测试波形)
  • 峰值脉冲功率 Ppp:400 W(10/1000 μs 波形)
  • 反向漏电流 Ir:500 μA(在 Vrwm 测试条件下)
  • 工作温度范围:-55 ℃ 至 +150 ℃
  • 类型:TVS 二极管
  • 封装:SMAG(SMA 封装)
  • 品牌:CJ(江苏长电/长晶)

三、产品特性与优势

  • 双向钳位:可同时抑制正负极向的瞬态脉冲,适合交流或双向脉冲保护场合。
  • 高能量吸收:在 10/1000 μs 波形下可承受 35.7 A 的峰值脉冲电流,对雷击诱发的远雷感应和电源浪涌有良好防护能力。
  • 低钳位电压:典型钳位在 11.2 V,能将瞬态电压限制在对后级电路相对安全的范围,减少器件受损风险。
  • 宽温度工作:-55 ℃ 至 +150 ℃,适合工业、通信、汽车电子等对温度要求高的应用环境。
  • 表面贴装封装:SMA(SMAG)封装,便于自动贴装与回流焊,适合批量生产和可靠性装配。

四、典型应用场景

  • 电源输入浪涌保护(例如 5V/6V 供电总线的瞬态抑制)
  • 通信接口保护(如串口、以太网接口等信号线防护)
  • 工业控制设备、PLC、传感器接口的浪涌防护
  • 消费类电子、仪表及小型电源模块的过压保护
  • 作为保护元件用于防雷、浪涌、静电放电(ESD)等偶发高能事件

五、设计与使用建议

  • 安装位置:将 TVS 尽量靠近受保护端口或电源入口放置,减小导线或 PCB 走线的感抗与寄生电感,以提高抑制效果。
  • 选型原则:Vrwm(6.5 V)应高于电路正常工作电压,但又尽可能接近,以便在瞬态出现时快速触发钳位。针对 5 V 类电路或 6 V 左右工作点,SMAJ6.5CA 为合适选择。
  • 漏电流考虑:在低功耗或高精度模拟/测量场合,需要注意 500 μA 的反向漏电流可能对电路造成影响,可在系统设计时评估其影响。
  • 热与功率处理:在频繁浪涌条件下,关注器件热耗散,必要时考虑散热措施或并联多只 TVS 分担能量(需遵循厂商并联使用指导)。
  • 波形与能量匹配:峰值脉冲电流与功率数据以 10/1000 μs 波形为基准,若系统遇到不同波形(如 8/20 μs),需参考厂商更详细的脉冲能力曲线或做实测验证。

六、封装与焊接要点

  • 封装:SMAG(SMA)表面贴装,兼容常见的 SMT 工艺。
  • 焊接:推荐采用回流焊工艺,遵循厂商的回流温度曲线和焊剂规范,避免过高温度或长时间加热导致器件性能退化。
  • PCB 布局:设计时在 TVS 两侧留足铜箔面积以提高热散能力,尽量使用短、宽的焊盘和走线以降低寄生阻抗。

七、可靠性与选购提示

  • 工作温度范围宽、热稳定性好,适合工业级应用,但在特殊高能场合应结合系统抗浪涌策略评估总体可靠性。
  • 采购时请确认产品为 CJ(长电/长晶)原厂或授权分销商,确认标称型号 SMAJ6.5CA 与封装 SMAG,避免混淆同类型号。
  • 若有更严格的漏电流、钳位或功率要求,可联系供应商索取完整的电气特性曲线、寿命与可靠性测试报告以便做进一步比选。

如需该型号的完整数据手册、波形测试曲线或电路接入示意图,我可以帮助检索并提供进一步的技术支持。

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