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TWGMC SMCJ30A TVS Diode SMCJ30A
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- TWGMC SMCJ30A
- Type
- TWGMC
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- TWGMC
- Electronic Component
- SMCJ30A
- Electronic Component
- 1
- Package
- SMC
- Electronic Component
- Electronic Component
- Type
- TVS
- Electronic Component
- ESD and Surge Protection (TVS / ESD)
- Electronic Component
- 0.38g
- Electronic Component
- 1
- Channel Count
- Electronic Component
- Electronic Component
- BM0226538260
- Operating Temperature
- 55℃~+150℃
- Voltage
- 48.4V
- Current(Ir)
- 1uA
- Voltage(VBR)
- 36.8V
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
SMCJ30A 产品概述
一、产品简介
SMCJ30A 为单通道、单向瞬态电压抑制器（TVS），由台湾品牌 TWGMC（台湾迪嘉）提供，采用 SMC（DO-214AB）封装。器件设计用于在瞬态过电压事件中快速钳位，保护电源线和敏感电子器件免受浪涌、电气瞬变损伤。工作温度范围宽 (-55℃ 至 +150℃)，适应工业及汽车等苛刻环境。
二、主要电气参数
- 钳位电压（Vc）：48.4 V（在规定攻击波下）
- 击穿电压（Vbr）：36.8 V
- 反向截止电压 Vrwm：30 V（额定稳压工作电压）
- 峰值脉冲功率 Ppp：1.5 kW @ 10/1000 μs
- 峰值脉冲电流 Ipp：31 A @ 10/1000 μs
- 反向漏电流 Ir：1 μA（在 Vrwm 下典型值）
- 通道数：单路；极性：单向；类型：TVS
三、性能特点
- 单向结构在正向瞬态时低压降钳位，反向可像整流二极管一样阻断直流，适合直流或单极信号线路保护。
- 对应 10/1000 μs 标准脉冲，具备 1.5 kW 的能量吸收能力，适合中高能量浪涌防护（例如雷击感应或开关瞬变）。
- 低反向漏电流（1 μA）有助于降低系统待机功耗并保护敏感电路。
- 宽温度范围和 SMC 封装利于散热和耐用性，适合长期可靠工作。
四、典型应用
- 24 V 级电源总线和工业控制系统的浪涌保护（Vrwm=30 V 对应常见 24 V 系统）。
- 通信设备、电源输入端、DC/DC 转换器保护。
- 汽车电子、重工仪器及户外设备中需要抗浪涌保护的场景。
五、布局与使用建议
- 将 TVS 器件尽可能靠近被保护端口或引入点布置，缩短走线以降低串联电感，提升钳位效果。
- 对于高能量事件，建议与熔断器、限流电阻或配套电感一起使用，以分担能量并保护 TVS 本体。
- 保持良好散热路径，SMC 封装通过大焊盘和散热层可提升能量吸收能力和重复冲击寿命。
六、存储与可靠性
- 建议防潮包装存储，遵循常见器件管脚防静电和防潮要求。
- 在额定温度范围内工作可获得最佳可靠性；超出额定条件可能降低寿命或导致失效。
七、选型注意事项
- 确认系统最大工作电压低于 Vrwm（30 V），且期望钳位电压（48.4 V）能保护下游器件。
- 若系统可能遭受更高能量或更短脉宽的冲击，需参考厂家详尽能量表和冲击曲线，或选用更高功率等级的 TVS。
- 结合实际应用评估峰值电流、冲击波形（如 8/20 μs、10/1000 μs）与器件额定条件的一致性。
如需封装尺寸、IV 曲线或老化/冲击试验数据，可进一步提供器件数据表以便做更精确的设计与验证。
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