WMSIC Electronic Components

TECH PUBLIC SMCJ30CA

ModelSMCJ30CA
PackageSMC
BrandTECH PUBLIC
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
TECH PUBLIC SMCJ30CA
Type
TECH PUBLIC
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
TECH PUBLIC
Electronic Component
SMCJ30CA
Electronic Component
1
Package
SMC
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.346g
Electronic Component
1
Electronic Component
BM0230898287
Operating Temperature
55℃~+150℃
Voltage
48.4V
Current(Ir)
5uA
Voltage(VBR)
36.8V
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.

SMCJ30CA 产品概述

一、产品简介

SMCJ30CA 是台舟电子(TECH PUBLIC)推出的一款双向瞬态电压抑制二极管(TVS),采用 SMC 表面贴装封装,针对脉冲瞬态过压和雷击、浪涌保护设计,适用于直流及双向交流线路的浪涌抑制。器件工作温度范围广(-55℃ 至 +150℃),可靠性高,适合工业与汽车级应用的瞬态保护需求。

二、主要电气参数

  • 极性:双向
  • 反向截止电压 Vrwm:30 V
  • 击穿电压(典型):36.8 V
  • 钳位电压 Vclamp:48.4 V(对应测试条件)
  • 峰值脉冲电流 Ipp:31 A @ 10/1000 μs
  • 峰值脉冲功率 Ppp:1.5 kW @ 10/1000 μs
  • 反向电流 Ir:≤ 5 μA(在 Vrwm 条件下)
  • 工作温度:-55 ℃ ~ +150 ℃
  • 类型:TVS,封装:SMC,品牌:TECH PUBLIC(台舟电子)

三、关键性能与优势

  • 双向结构可在正负极性瞬态下提供对称保护,适合交流或反向可能出现的系统。
  • 30 V 的 Vrwm 适配 24 V 和类似电压等级的工业、通信系统,能在正常工作电压下保持低漏电。
  • 在 10/1000 μs 浪涌波形下可承受 31 A 的冲击电流和 1.5 kW 的瞬态功率,具备较强的能量吸收能力。
  • 低反向漏电(≤5 μA)有利于微功耗系统的长期稳定运行。
  • 宽温度范围保证在恶劣环境下的可靠性与稳定性。

四、典型应用场景

  • 工业自动化设备的 24 V 电源保护。
  • 通信基站与网络设备的电源浪涌防护。
  • 电机控制器、变频器及驱动电路的输入输出保护。
  • 汽车电子(非关键安全回路需核对规格)、电池管理与逆变器系统的瞬态抑制。
  • 任何需对直流或双向瞬态进行钳位的电源总线或信号线保护场合。

五、选型与使用建议

  • 确认系统最大工作电压低于 Vrwm(30 V),并留有安全裕度,避免长期在 Vrwm 边缘工作导致漏电或提前失效。
  • 钳位电压 48.4 V 应小于被保护元件能承受的最大耐压值,确保下游电路不会因钳位电压而损坏。
  • 考虑实际浪涌能量与 Ppp(1.5 kW)和 Ipp(31 A)的匹配,若预期更大能量或重复冲击频率高,应选更高能量等级器件或并联/级联方案。
  • 对温度敏感的应用注意高温下的电气特性变化,必要时参考厂方曲线或进行实验验证。

六、封装与可靠性注意

SMC 封装便于表面贴装生产与散热,贴片焊接时按厂家推荐的回流温度曲线与 PCB 散热设计进行,避免过度机械应力与热循环导致焊点失效。存储与装配遵循一般元件防潮与防静电规范,必要时参考台舟电子详细数据手册。

七、小结

SMCJ30CA 是一款适用于 24V 级别系统的高能量、低漏电、双向 TVS,适合多种工业与通信场景的瞬态浪涌保护。选用时请以实际工作电压、浪涌能量及温度条件为准,并参照厂方完整数据手册进行最终设计验证。

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