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JJW 5.0SMDJ85CA
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- JJW 5.0SMDJ85CA
- Type
- JJW
- Minimum package
- 3000 未知
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- JJW
- Electronic Component
- 5.0SMDJ85CA
- Electronic Component
- 1
- Package
- DO-214AB(SMC)
- Electronic Component
- Electronic Component
- Type
- TVS
- Electronic Component
- ESD and Surge Protection (TVS / ESD)
- Electronic Component
- 0.404g
- Electronic Component
- 1
- Electronic Component
- BM0257711042
- Voltage
- 137V
- Electronic Component
- IEC 61000-4-2
- Current(Ir)
- 1uA
- Voltage(VBR)
- 104V
- 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.
SMDJ85CA 产品概述
一、产品简介
SMDJ85CA 是捷捷微（JJW）推出的一款双向瞬态电压抑制二极管（TVS），采用 DO-214AB（SMC）封装，专为吸收大能量浪涌和静电放电而设计。器件在极性双向的结构下，对正负两方向的瞬态过电压均能提供有效钳位保护，适用于工业级电源及信号线的过压防护。
二、主要参数
- 极性：双向
- 反向截止电压 Vrwm：85 V（额定稳压/工作电压）
- 击穿电压 Vbr：104 V（典型击穿起始电压）
- 钳位电压 Vc：137 V（Ipp 测试条件下）
- 峰值脉冲电流 Ipp：36.5 A（10/1000 μs 浪涌波形）
- 反向电流 Ir：1 μA（在 Vrwm 下的漏电流）
- 防护等级：满足 IEC 61000-4-2（ESD）
- 封装：DO-214AB（SMC）
三、核心特性与优势
- 高能量吸收：在标准 10/1000 μs 浪涌测试下可承受 36.5A 峰值电流，能够吸收来自雷击或开关冲击的高能量脉冲。
- 低钳位电压：137V 的钳位电压可在浪涌发生时将被保护节点电压控制在安全范围，降低对下游器件的冲击。
- 低漏电流：1 μA 的反向漏电流有利于在正常工作时降低功耗，尤其适合对静态电流敏感的系统。
- 双向保护：适合交流线路或双向瞬态出现的场景，无需外加反向器件，使用更简便。
- 工业级封装：SMC 封装具备良好热阻和机械强度，便于手工焊接与回流工艺。
四、典型应用场景
- 工业电源输入、直流母线过压保护
- 通信设备、数据线和接口电路的瞬态抑制（符合 IEC ESD 标准）
- 可再生能源逆变器、光伏系统直流侧防护
- 电机驱动、变频器等含高幅值干扰的工业设备
五、安装与选型建议
- 工作电压选择：Vrwm=85V 适用于额定系统电压接近或低于 85V 的直流/交流线路，选型时建议留有余量以避免长期靠近 Vrwm 工作。
- 布局与散热：将器件靠近被保护端口放置，走线短且宽以降低串联阻抗；SMC 封装对散热有要求，必要时配合加大铜箔面积以提升热耗散能力。
- 配合保护元件：对于极高能量事件，建议与熔断器、限流电阻或备用吸能元件配合，避免单一 TVS 承受过频繁的大能量冲击导致寿命下降。
六、测试与可靠性
SMDJ85CA 满足 IEC 61000-4-2 ESD 等规范，且在 10/1000 μs 浪涌波形下有明确的 Ipp 与 Vc 指标。实际应用中，应结合系统级冲击测试验证钳位性能与寿命。对于关键设备，建议在样机阶段进行多次浪涌、热循环与焊接可靠性测试，以确保长期稳定运行。
总结：SMDJ85CA 以其较高的浪涌吸收能力、低钳位电压和双向保护特性，是工业电源及高能干扰环境下可靠的瞬态过压保护选择。
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