WMSIC Electronic Components

YANGJIE SMCJ33CA

ModelSMCJ33CA
PackageDO-214AB(SMC)
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+

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Technical data

Product details

13 specifications

Core information

Product name
YANGJIE SMCJ33CA
Type
DO-214AB(SMC)
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
YANGJIE
Electronic Component
SMCJ33CA
Electronic Component
1
Package
DO-214AB(SMC)
Electronic Component
0.358g
Electronic Component
1
Electronic Component
BM0231096092
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.

SMCJ33CA(YANGJIE 扬杰)双向 TVS 二极管 产品概述

一、产品简介

SMCJ33CA 是扬杰(YANGJIE)推出的一款双向瞬态电压抑制器(TVS),采用 SMC(DO-214AB)封装,面向对抗雷击、开关瞬变和线路感应脉冲的工业级保护场合。器件设计用于在双向极性瞬态事件中快速钳位,保护下游电子设备免受过压损害,工作温度范围宽(-55℃ 至 +150℃),适应恶劣环境。

二、主要电气参数

  • 极性:双向(双向钳位,正负瞬态均可保护)
  • 反向额定电压(Vrwm):33 V(稳态工作电压建议不超过此值)
  • 击穿电压(Vbr):约 40.6 V(表征进入雪崩导通区的电压)
  • 钳位电压(Vc):53.3 V(在规定峰值脉冲电流条件下的瞬态钳位电压)
  • 峰值脉冲电流(Ipp):28.14 A @ 10/1000 µs 波形
  • 峰值脉冲功率(Ppp):1.5 kW @ 10/1000 µs 波形(器件在该测试波形下的功率承受能力)
  • 反向漏电流(Ir):典型 5 µA(在 Vrwm 条件下)
  • 工作温度:-55 ℃ ~ +150 ℃

三、特性与优势

  • 高能量吸收能力:在 10/1000 µs 测试波形下提供 1.5 kW 峰值功率和 28.14 A 峰值电流,适合处理较长脉冲能量(如雷击和线路感应浪涌)。
  • 双向保护:无需极性区分,适用于交流或可反向的直流系统(例如双向电源、通讯线路、数据接口等)。
  • 宽工作温度:适合户外、工业和汽车周边电源环境(需依据具体认证进一步确认汽车级适用性)。
  • SMC 封装:功率与热耗散能力良好,便于手工焊接与通用 SMT 工艺。

四、典型应用场景

  • 工业电源和控制设备的输入保护(33 V 等级直流总线)
  • 通信基站、楼宇对讲、安防设备的线路防护
  • 电源模块、逆变器的中低压侧瞬态抑制
  • 电气设备的接口保护(双向浪涌可能出现的场合)

五、安装、热管理与可靠性建议

  • 布局上应尽量将 TVS 靠近被保护端口或电源入口,缩短连接导线,减小寄生电感以提高钳位效果。
  • SMC 封装具备一定散热能力,但在频繁或高能量冲击环境中需注意 PCB 散热路径设计(较大铜箔面积、热沉或散热通孔)。
  • 焊接工艺应遵循器件厂商的回流曲线规范,避免过热导致封装/内部结构损伤。
  • 对于关键应用,建议进行实际浪涌试验验证(包括 10/1000 µs 波形和其他波形)以确认整机保护能力与失效模式。

六、选型与使用注意事项

  • 确认 Vrwm(33 V)高于或等于电路最大工作电压,且钳位电压(53.3 V)在器件允许承受范围内不会损坏被保护器件。
  • 注意器件在不同脉冲波形下的能量吸收差异,10/1000 µs 适合雷击类长时程脉冲,短时高峰(如 IEC 61000-4-5 非同波形)需参考厂商曲线或做实际测试。
  • 在多次大能量冲击后应检查器件是否仍能正常工作,必要时采用可替换的保护结构以保证长期可靠性。
  • 获取并参考扬杰的完整数据手册、热阻、封装尺寸和可靠性认证文件,确保符合系统级安全和认证要求。

总体来看,SMCJ33CA 以其双向保护、较高的脉冲能量承受能力和工业级温度适应性,是中低压电源与接口处的一款可靠瞬态抑制选择。

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