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DOWO SMCJ30CA
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- DOWO SMCJ30CA
- Type
- DOWO
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- DOWO
- Electronic Component
- SMCJ30CA
- Electronic Component
- 1
- Package
- SMC(DO-214AB)
- Electronic Component
- Electronic Component
- Type
- TVS
- Electronic Component
- ESD and Surge Protection (TVS / ESD)
- Electronic Component
- 0.32g
- Electronic Component
- 1
- Electronic Component
- BM0226170062
- Operating Temperature
- 55℃~+150℃
- Voltage
- 48.4V
- Electronic Component
- IEC 61000-4-2
- Current(Ir)
- 1uA
- Voltage(VBR)
- 33.3V
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 为 DOWO（东沃）出品的一款瞬态抑制二极管（TVS），采用 SMC（DO-214AB）封装，属于高能量脉冲吸收器件。器件为双向（Bi-directional）结构，专为对抗雷击、静电放电及开关瞬变等突发高压脉冲而设计，能在短时间内把输入脉冲能量钳位到安全电平，保护下游敏感电路。
二、主要电气参数
- 钳位电压（VC）：48.4V（在规范冲击条件下测试所得）
- 反向工作电压（Vrwm）：30V
- 击穿电压（Vbr）：33.3V
- 峰值脉冲功率（Ppp）：1.5kW @ 10/1000μs
- 峰值脉冲电流（Ipp）：30.99A
- 反向漏电流（Ir）：1μA（典型）
- 极性：双向
- 工作温度范围：-55℃ 至 +150℃
- 防护等级/标准：符合 IEC 61000-4-2（静电放电抗扰）
三、主要特性与优势
- 高能量吸收能力：1.5kW @10/1000μs 能有效钳制较大能量的浪涌冲击。
- 双向保护：适用于交流或可能出现反向极性的线路，无需额外极性排列。
- 低漏电流：Ir 仅约 1μA，有利于低功耗系统长期稳定工作。
- 宽温度范围：-55℃~+150℃，适应工业级与汽车级环境。
- 封装可靠：SMC（DO-214AB）适合波峰/回流焊，便于自动化贴装与散热管理。
- 符合 IEC 61000-4-2：通过静电放电等级要求，提升系统抗干扰能力。
四、典型应用场景
- 电源输入端与分配总线的浪涌保护（UPS、电源模块）。
- 通信设备与基站接口防护（串口、以太网供电点等）。
- 工业控制与PLC模块的端口防护。
- 汽车电子系统中针对瞬态干扰的电压钳制（需按系统规范复核）。
- 外围接口（如HDMI、USB等）在配合合适电路时用于浪涌吸收。
五、选型与使用注意事项
- 反向工作电压 Vrwm（30V）应高于或等于被保护线路的正常工作电压，避免器件在常态下进入击穿区。
- 钳位电压 48.4V 为典型测试条件下值，实际系统中需考虑器件温升与重复脉冲带来的热效应。
- 双向器件适用于交流或可能出现反向极性的场合；直流单向场合可考虑单向TVS以获得更低钳位。
- 布局建议：TVS 尽量靠近被保护端口放置，减少串联电感，提高瞬态抑制效果；同时保证良好散热路径。
- 对于频繁或高能量的冲击，应评估器件的寿命与是否需要并联/串联或配套限流元件以分担能量。
SMCJ30CA 以其高能量钳制能力、双向保护特性及工业级工作温度，适合在多种有较强浪涌或静电威胁的应用中作为优选保护元件。选型时请结合系统电压、冲击能量及散热条件进行综合评估。
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